Desktop Dyno: Stirring it up.

[Injected]

It's pretty quiet on the forums right now, so I thought I'd stir things up with a little desktop dyno numbers.

A lot of us spend a lot of time trying to add power to our rides to make them faster, but just how much does it take to make these trucks/suvs quick. I use a pretty good desktop dyno package for calculations and was just messing with it recently for a post yesterday and thought that it would be nice to find out how much power it would take to move an S-10 down the quartermile track in a certain amount of time.

The calculator uses the weight and speed in either the 1/8 or 1/4 and calculates the flywheel horsepower (some variation of the high school physics formula F = M * A. It also calculates the ET from that power, so it can go both ways. Here's a few calculations from it with times I pulled from this site. Remember, these are just what the output of the program says and I am making no insinuations about the implications of that output. You decide how realistic you think the program or numbers provided that I used are.

As a test case, lets use a 2000 Camaro SS. It weighs 3306 and has 320 flywheel hp. The desktop dyno calculates it will run a 13.34 @ 101. Pretty accurate.

Now, a 2000 S-10 2 Dr LS Extended Cab makes 120hp and weighs 3216. That yields a possible 18.32 @ 73.5.

A 2000 2 Dr LS 4WD Extended Cab makes 190 and weighs 3716. This equals a 16.5 @ 81.6 in the quarter.

Okay, for some real fun, let's take a look at the figures posted in this forum by members. If you want me to run your numbers, just post them in this thread. I would just start plugging in numbers, but I don't want it to seem like I'm 'calling anyone out,' so if you would like me to run them, just post a MPH, ET, or Dyno number. Remember, it's just computer software and there are many more variables that it doesn't take into account, so it's really just for S&G's

[sparky2263]

280 hp (on nitrous) 3210 race weight

[s10xtremist]

I'd like to know what it says mine should run.

'02 X-cab, 4.3/auto- 210 rwhp

I have no idea what the weight is......

[s10mafia50]

98 regular cab 4.3L 5sp approx. 285hp(on nitrous) 4.10 gears and right at 3314 w/ driver

[Injected]

280 hp (on nitrous) 3210 race weight
13.81 @ 97.5 mph

[Injected]

98 regular cab 4.3L 5sp approx. 285hp(on nitrous) 4.10 gears and right at 3314 w/ driver
13.87 @ 97.1 mph

[Injected]

I'd like to know what it says mine should run.

'02 X-cab, 4.3/auto- 210 rwhp

I have no idea what the weight is......
If we assume a 15% drivetrain loss, then we are going to see 241.5 hp at the flywheel. If I use this and a ballpark 3400 lbs, then I get 14.78 @ 91.1 mph.

I can do 1/8 mile runs too.

[sparky2263]

13.81 @ 97.5 mph

hehe, try 12.78@102.81

Guess I shoulda' added that was RWHP. ;)

Does yours do it in reverse and guesstimate flywheel HP from the ET?

[Telemarshallman]

Alright,

I've got a 92' 2.8l short cab, short box.

specs say 2800lb, but I'm guessin about 2950-3000lb with stuff and driver
specs say 125hp:150lb/ft but I think with 210k miles its about 100hp:125lb/ft

SO:
3000lb
100hp, 125lb/ft
Tahoe package 3.73 rear

[Rob]

Best 1/4 mile is 15.65 @ 85 mph. Truck weighs about 3700 with me in it. Can you give a HP estimite?

[s10mafia50]

13.87 @ 97.1 mph

Close, but maybe my drag radials gave me the extra 2 tenths! Pretty close though...My best was 13.6 on the 3.42's.....thanx
Andrew

[s10mafia50]

My friend was asking about his 318ti bimmer, 175hp, 2600lbs, and 3.73 gears...thanx
Andrew

[brakemaster_43]

230 horse power, 3:42's, about 3200lbs (guessing)

[s10xtremist]

15% drivetrain loss? I figured it would be closer to, if not more than 20%. Anyway, thanks for checking into that for me . My truck is slow. I need more fuel......and psi.

[Injected]

I'm heading in to work right now, but will get back to all of you whenever I get back. I can do HP estimates off of ET's and all that. Later.

[Injected]

15% drivetrain loss? I figured it would be closer to, if not more than 20%. Anyway, thanks for checking into that for me . My truck is slow. I need more fuel......and psi.
Are you RWD or AWD? 20% isn't unreasonable for either. It's good to see you in the forums.

[Injected]

230 horse power, 3:42's, about 3200lbs (guessing)

14.73 @ 91.4

[Injected]

My friend was asking about his 318ti bimmer, 175hp, 2600lbs, and 3.73 gears...thanx
Andrew

15.05 @ 89.4

[Injected]

Close, but maybe my drag radials gave me the extra 2 tenths! Pretty close though...My best was 13.6 on the 3.42's.....thanx
Andrew

Also, correct to standard, but yeah, coefficient of friction is not calculated into the eqution.

[s10mafia50]

That program is actually very close to reality though...I believe ever engine acts it's own way to nitrous though. Thank you for everything!!!!
Andrew

[Injected]

Best 1/4 mile is 15.65 @ 85 mph. Truck weighs about 3700 with me in it. Can you give a HP estimite?

It would take about 213 flywheel horsepower to move your truck to 85 mph in a quarter mile span. This seems low to me, but 15.65 isn't crazy fast, so I guess it makes sense.

[Injected]

280 hp (on nitrous) 3210 race weight
Yes, according to the 'dyno,' you make about 327 flywheel hp. This makes sense with the drivetrain loss. Does this make sense with your modifications? I would look them up and post them, but I'll leave that up to you.

[Injected]

Alright,

I've got a 92' 2.8l short cab, short box.

specs say 2800lb, but I'm guessin about 2950-3000lb with stuff and driver
specs say 125hp:150lb/ft but I think with 210k miles its about 100hp:125lb/ft

SO:
3000lb
100hp, 125lb/ft
Tahoe package 3.73 rear

Using the numbers you provided, you get 19.03 @ 70.8 which is found to be a fairly representative 4 cylinder quarter mile. Stock specifications would suggest closer to 17.26 @ 78.

[Injected]

I don't know where it came from, but I don't even need the gearing for these calculations. The program has been as accurate as it has with only the weight, and either an ET, MPH or HP.

I think I've gotten to everyone who posted, if not, sorry I've overlooked you (PM me).

Any other takers?

[Lostprophet_01]

I have a 91 s10 pushing around 175hp. Im guessing the weight is around 2700lbs. Could you tell me quite possibly what it would run on 1/4 and 1000ft?

[Injected]

I have a 91 s10 pushing around 175hp. Im guessing the weight is around 2700lbs. Could you tell me quite possibly what it would run on 1/4 and 1000ft?
15.24 @ 88.3 in the 1/4. Don't know about 1000 ft, but my guess is less than 15.24 @ 88.3 :rolleyes:

[Old Man]

Run this one. I say what it was later.

9.08 at 90.18 MPH, Do it at 2500 lbs.

[Injected]

Run this one. I say what it was later.

9.08 at 90.18 MPH, Do it at 2500 lbs.
I'm assuming 1/4.

To reach that MPH with that much weight, it will take 172 flywheel hp in the quarter mile, which is reasonable. If I then reverse calculate the ET, I get 14.94 @ 90.1, which again, makes sense. But 9.08 doesn't make much sense for only reaching that speed. In order to reach 9.0 at 2500 lbs, it takes about 764 hp, but then you would run up to 148 mph.

[Mattzq8Sonoma]

I'm curious about my little 5-speed double Deuce. Stock is 120 flywheel HP. I've got intake, full exhaust mods, e-fan, MSD ignition...so I'm thinking maybe 140 flywheel HP. I went to the dump here to drop a big load of stuff off and it weighed in at 3019 lbs on the way out with me and a full tank.

So...lets say 140 flywheel HP...3000 lbs and 3.73 gears if you need that too.

[sparky2263]

Yes, according to the 'dyno,' you make about 327 flywheel hp. This makes sense with the drivetrain loss. Does this make sense with your modifications? I would look them up and post them, but I'll leave that up to you.

Mods are full length headers, true duals, side exit, 1.6 Scorpion rollers, modified CPI intake, egr delete with custom chip, balance shaft delete.

Off the juice it runs 14.6's at 92. Vigilante 3200 stall, 4.10 gears and awesome traction help. ;)

'course, my dry N.O.S. setup is the sheot.

http://mys10.net/attachment.php?attachmentid=110&stc=1

[sparky2263]

Here's a dyno sheet (nitrous) when it ran a 13.08 best. Upped the nitrous another 30-40 hp to get the 12.78.http://mys10.net/attachment.php?attachmentid=111&stc=1

[Old Man]

I'm assuming 1/4.

To reach that MPH with that much weight, it will take 172 flywheel hp in the quarter mile, which is reasonable. If I then reverse calculate the ET, I get 14.94 @ 90.1, which again, makes sense. But 9.08 doesn't make much sense for only reaching that speed. In order to reach 9.0 at 2500 lbs, it takes about 764 hp, but then you would run up to 148 mph.

The one major thing with this desk top dyno and dynoes. They dont take in any consideration of traction issues, vehicle types. Wind drag, rolling resistnace and so fourth at left out which make geat diferences.
It was Cory Mac in a pedal fest he gave up on this weekend, 8000 est H.P. Ran about 500 ft before giving up.

[Injected]

I'm curious about my little 5-speed double Deuce. Stock is 120 flywheel HP. I've got intake, full exhaust mods, e-fan, MSD ignition...so I'm thinking maybe 140 flywheel HP. I went to the dump here to drop a big load of stuff off and it weighed in at 3019 lbs on the way out with me and a full tank.

So...lets say 140 flywheel HP...3000 lbs and 3.73 gears if you need that too.
17.01 @ 79.2 assuming that 140 is correct.

[Injected]

The one major thing with this desk top dyno and dynoes. They dont take in any consideration of traction issues, vehicle types. Wind drag, rolling resistnace and so fourth at left out which make geat diferences.
It was Cory Mac in a pedal fest he gave up on this weekend, 8000 est H.P. Ran about 500 ft before giving up.
If he gave up, then he didn't run the full 1/4 and that will throw the calculation. What does he run in the full 1/4.

I've already noted the limitations of this software, we are just having a little fun.

[Injected]

Here's a dyno sheet (nitrous) when it ran a 13.08 best. Upped the nitrous another 30-40 hp to get the 12.78.http://mys10.net/attachment.php?attachmentid=111&stc=1
If I use your 297 flywheel hp (258.2 * 1.2 for drivetrain loss), and your raceweight of 3210lbs, then I get 13.35 @ 100.9. The extra three tenths is probably due to something not taken into consideration about the nitrous or weight, OR if you know the roller size on the dyno you were on then we can determine if it was that (the dynojets have different roller sizes that give different readings).

[Rob]

It would take about 213 flywheel horsepower to move your truck to 85 mph in a quarter mile span. This seems low to me, but 15.65 isn't crazy fast, so I guess it makes sense.

Thanks. Yeah I know it isn't fast. I'm still happy from going from mid 16's to mid 15's with bolt-ons. Plus my trucks got almost 100k miles on it, so she's not a "fresh" as she used to be.

[Injected]

Thanks. Yeah I know it isn't fast. I'm still happy from going from mid 16's to mid 15's with bolt-ons. Plus my trucks got almost 100k miles on it, so she's not a "fresh" as she used to be.
I'm not saying that your car isn't quick, but it seems that you would gain more than 23hp from the modifications you have made. Actually, you probably gained more, but you lost some due to the mileage/condition of the engine as you suggested. 15.65 is respectable, and would take most econocars on the road today. sparky was able to get to the 13.08 with his mods (not sure what they are Plus his truck weighs about 600 lbs less than your blazer. But using the dyno to check the difference in weight vs. power, if you both had the same power, you would push about 13.7 @ 98.2 mph (this is using 330hp which is what it takes according to the dyno to take his car to that ET). After that, slap a blower on, or consider nitrous like he did and you are very good.

[Injected]

Mods are full length headers, true duals, side exit, 1.6 Scorpion rollers, modified CPI intake, egr delete with custom chip, balance shaft delete.

Off the juice it runs 14.6's at 92. Vigilante 3200 stall, 4.10 gears and awesome traction help. ;)

'course, my dry N.O.S. setup is the sheot.

I ran the 14.6 @ 92 and it gives 234, this makes tons of since to me since my 210hp DSM which weighs a little more ran a 14.9 @ 88. This car is AWD so there isn't really a traction issue here either. Similar cars with similar power outputs making similar quarter mile runs. However, we calculated (and your dynosheet agrees) that it takes an additional 100hp over this to make it to 12.78, so how much hp DOES the nitrous add?

Conclusion for your setup (3210 weight):
Off nitrous (14.60): 234 hp
On nitrous (13.08): 330 hp (+ 104)
On nitrous (12.57): 355 hp (+ 121)

All of these numbers make complete sense, but that is one hell of a dry shot of nitrous. Any shot of nitrous that takes over a second and a half of an ET that low already is crazy.

[sparky2263]

I ran the 14.6 @ 92 and it gives 234, this makes tons of since to me since my 210hp DSM which weighs a little more ran a 14.9 @ 88. This car is AWD so there isn't really a traction issue here either. Similar cars with similar power outputs making similar quarter mile runs. However, we calculated (and your dynosheet agrees) that it takes an additional 100hp over this to make it to 12.78, so how much hp DOES the nitrous add?

Conclusion for your setup (3210 weight):
Off nitrous (14.60): 234 hp
On nitrous (13.08): 330 hp (+ 104)
On nitrous (12.57): 355 hp (+ 121)

All of these numbers make complete sense, but that is one hell of a dry shot of nitrous. Any shot of nitrous that takes over a second and a half of an ET that low already is crazy.


The guy I was racing in that slip is also the owner of the speed shop that has the dyno. He said about the same thing. "NOBODY runs that big a dry shot".

The orifice size is .061, fuel pressure is 84-88 and I've got the ECM to go max pulsewidth when the nitrous is activated. It's pretty much the limit but it works good. CPI is capable of it.

[s10xtremist]

Are you RWD or AWD? 20% isn't unreasonable for either. It's good to see you in the forums.

I wish I was AWD. I always figure for the worst since my truck seems to produce the least expected power from any given mod.

[Dimemaster]

11.177@148.54 1/4

[Injected]

11.177@148.54 1/4
Gotta weight for that quarter?

[sparky2263]

11.177@148.54 1/4

Hmmmm...... either spun like crazy and is capable of 9 second runs or rolls out of the hole for a hundred feet and pours on the boost or nitrous.

148 indicates a mid to low 9 second vehicle.

[Rob]

Hmmmm...... either spun like crazy and is capable of 9 second runs or rolls out of the hole for a hundred feet and pours on the boost or nitrous.

148 indicates a mid to low 9 second vehicle.

I agree. I saw a Supra run a 11.40 at 130 mph. Had to take off easy, drive train could not hold the power it was making.

[Injected]

Hmmmm...... either spun like crazy and is capable of 9 second runs or rolls out of the hole for a hundred feet and pours on the boost or nitrous.

148 indicates a mid to low 9 second vehicle.
Totally agree with that one. An average weight vehicle would definately pull a lower ET from that MPH. Either a botched launch as stated or something else not disclosed.

[jkrick]

how about 420 hp with weight of 2950

[Injected]

how about 420 hp with weight of 2950
11.72 @ 114.8

What is it?

[jkrick]

thats my stripped out 82 s10. it wont do a 11 sec pass i have a problem at the start of races can ya guess what it is. give ya a hint looks like some one simotainoulsy lighting about 100 smoke bombs and throwing them under the bed of the truck for about the first 60 feet or so.

[Injected]

thats my stripped out 82 s10. it wont do a 11 sec pass i have a problem at the start of races can ya guess what it is. give ya a hint looks like some one simotainoulsy lighting about 100 smoke bombs and throwing them under the bed of the truck for about the first 60 feet or so.
What are some actual ET and MPH that you have achieved?

[s10mafia50]

There is bound to be a diff. between manual and auto trans with the desktop dyno. The percentage should be less for a manual than the auto. Anyways, JKRICK, you need some wheel tubs and wide slicks.....LOL Unless it happens to be a diesel, or does the smokebomb reference go towards tires??? I have seen a powerstroke diesel with only computer mods run a 13.7 in the quarter(thick black smoke everywhere!!!)
Andrew

[62vetteman]

How about 1350 hp 2550 lbs for 1/4 mile?:D

[Hammer]

The guy I was racing in that slip is also the owner of the speed shop that has the dyno. He said about the same thing. "NOBODY runs that big a dry shot".

The orifice size is .061, fuel pressure is 84-88 and I've got the ECM to go max pulsewidth when the nitrous is activated. It's pretty much the limit but it works good. CPI is capable of it.

you should see his cockamanie setup to get the fuel he needs for that. talk about backyard. i can't believe the thing hasn't blown up yet, but whatever works i guess.

[sparky2263]

you should see his cockamanie setup to get the fuel he needs for that. talk about backyard. i can't believe the thing hasn't blown up yet, but whatever works i guess.

Interesting comment from you Hammer. It's set up exactly how N.O.S. intended it to be. Bleed off some of the nitrous pressure to the fuel pressure regulator to increase fuel pressure.

How I did it is posted at my Cardomain site.

But we all know why you're really attacking me, don't we?

[Injected]

How about 1350 hp 2550 lbs for 1/4 mile?:D
7.26 @ 185.5

[62vetteman]

that's somewhat close to reality. around 6.80 @205 :)

[Injected]

that's somewhat close to reality. around 6.80 @205 :)
Where did you get your HP figure from?

[62vetteman]

it's a little less than average for a prostock motor.

[sparky2263]

I'm pretty sure Grumpy and Greg are pushing closer to 1550 at the flywheel now.

[62vetteman]

not that much, especially jenkins. the top performers out there have 1400-1430

[Rob]

Best 1/4 mile is 15.65 @ 85 mph. Truck weighs about 3700 with me in it. Can you give a HP estimite?

It would take about 213 flywheel horsepower to move your truck to 85 mph in a quarter mile span. This seems low to me, but 15.65 isn't crazy fast, so I guess it makes sense.

Injected, I know this is an old thread, but I found out some new info this weekend at the track. My truck actually weighs nearly 4000 lbs. (3970) with me in it when I race (remove spare tire and subs). Could you give me an updated HP estimite?

[Injected]

Injected, I know this is an old thread, but I found out some new info this weekend at the track. My truck actually weighs nearly 4000 lbs. (3970) with me in it when I race (remove spare tire and subs). Could you give me an updated HP estimite?
85mph trap, 3970lbs gives exactly 215 flywheel hp with 13% drivetrain loss. Whatever the drivetrain loss, it's 190.3 hp at the wheels. What was your best trap the other night?

On a side note, I am building a full calculator program for easy application of the various formulas I use. Take a look at this screenshot and let me know if you can think of a calculator to add. I hope to finish this soon and make it available for download, but work is keeping me busy.

[Rob]

85mph trap, 3970lbs gives exactly 215 flywheel hp with 13% drivetrain loss. Whatever the drivetrain loss, it's 190.3 hp at the wheels. What was your best trap the other night?

On a side note, I am building a full calculator program for easy application of the various formulas I use. Take a look at this screenshot and let me know if you can think of a calculator to add. I hope to finish this soon and make it available for download, but work is keeping me busy.

I'll post my best trap speed when I get home, although they were a little inconsistent as well and I wasn't getting any tire spin off the line (rarely ever do).

The calculator looks pretty good. I can't think of anything to add at the moment, but I may come across something down the road. Let me know when the first version is out, definately would like to have one.

[Rob]

...What was your best trap the other night?...

My best 1/4 mile was a 15.88 @ 82.2 mph and my best trap speed was 84.1 mph with an ET of 15.95.

[Injected]

186.7 at the wheels to get that beast up to speed. 211 with 13% loss to the drivetrain. What was your 60' on those two runs?

[Rob]

184.3 at the wheels to get that beast up to speed. 208.3 with 13% loss to the drivetrain. What was your 60' on those two runs?

15.88 was 2.15 and 15.95 was 2.18.

I realized today that I had put a "bad" tune into my PCM Saturday. I had too much fuel at WOT.

[Injected]

15.88 was 2.15 and 15.95 was 2.18.

I realized today that I had put a "bad" tune into my PCM Saturday. I had too much fuel at WOT.
Sorry, I entered your mph wrong. I fixed it, but not before you posted.

If I put in your numbers to the other calculator, I get 15.974 @ 84.47 mph, so the calculator is doing well, but I think that my carrying things to a ridiculous amount of decimals, then rounding off is causing some issues so I will try tweak the formulas for a better representation. For some reason I went a little too conservative and now have to go back and fix it. Oh well.

Tune it, go back and get a good baseline for comparison after the S/C install. I'm actually curious to see how much of a difference a good tune will make. By the way, how much is too much? Also, take not as to the differences in weather if you can.

[Injected]

I'll post my best trap speed when I get home, although they were a little inconsistent as well and I wasn't getting any tire spin off the line (rarely ever do).

The calculator looks pretty good. I can't think of anything to add at the moment, but I may come across something down the road. Let me know when the first version is out, definately would like to have one.
Rob,
I was editing the formulas and got it to give me less conservative estimates. How did you come up with 3970 for your weight. Curb + you + fuel ?

[Rob]

...How did you come up with 3970 for your weight. Curb + you + fuel ?

Scale at the track.

[Injected]

Scale at the track.
Fancy! Currently I've got you looking at 189.1 whp, 13% loss gives you 213.7 hp. When I plug in your weight to the ET/Trap from Weight/Power calculator, I get 15.907 @ 84.18 mph, which is fairly close. I think I'm getting closer to a more accurate estimate from the one I am building than the original one I was using in this thread.

[Injected]

I'm going to add a compression ratio calculator and a simple hp calculator based on drive train loss and either engine hp or whp. After that, I just have to polish the looks and it's good to go.

[Rob]

I'm going to add a compression ratio calculator and a simple hp calculator based on drive train loss and either engine hp or whp. After that, I just have to polish the looks and it's good to go.

Cool deal. I've always wanted a nice accurate performance calculator.

[Injected]

I went back and realized I never finished this. I built one a while ago and put it on a temp server. If anyone wants to download the page and host it somewhere, go for it. This information is out there, I just brought it together. Don't say I never gave you anything...

Save as a .html (it's .doc right now so the site will allow it) and use IE (or make sure you have the right JavaScript plugins for FireFox):

[Injected]

For those of you who are interested, I've resurected my old calculator project and am wrapping it up. One of the things that frustrated me was the quarter mile estimator. It really is only accurate for 2.0-2.2 and up 60' times. What I'd like to do is possibly have the user put in or select a range of 60' times and have the formula compensate by decrementing the formula (perhaps by a percentage). Anyone interested in helping me calculate the percentage difference in the calculated vs. actual times in this thread or other places? This would be a great help as I finish up the calculators and add a few more (static compression ratio comes to mind).

Once done, this program will be made available (assuming I can make it available through this site or email) for free for all you guys. I've filled it with what I consider fairly useful calculators and converters. Here's a screen shot to give you an idea of what is in the program. I've decided to go with an open window (right most) which you can select the calculator you want and open one or many of the same calc.

[Rob]

...Anyone interested in helping me calculate the percentage difference in the calculated vs. actual times in this thread or other places? This would be a great help as I finish up the calculators and add a few more (static compression ratio comes to mind)...

What all do you need? If I can help, I'm more than willing too. Overall I like the layout and design of the program.

[Injected]

What all do you need? If I can help, I'm more than willing too. Overall I like the layout and design of the program.
I really need to figure out what happens when people launch their car and it's affect on the formula. Rink and I briefly discussed the formula in a PM in comparing them with the site he normally used:

//The formula is: hp = weight * (speed / 234)^3
//The Formula is: ET = hp/weight * 197

Which is the same as my original ones and commonly accepted as accurate with 2.0-2.2+ 60' times. That's my problem. Most automotive guys try and get really low 60's by launching their cars, thus throwing the formula out of whack.

Perhaps the answer is to take the 60' time and add the difference of it and 2.0. Say if it was a 1.8 second 60' time, I would take .2 off the calculated time, or if it was 2.2, then I would add .2.

Make sense? I would need to confirm this. Can you do that by comparing it to quarter mile times using wheel hp, and weights. I would start with stock specs on higher hp cars with 0-60mph times less than 5 seconds... There may be no way of getting a great answer, but I'll have to check myself if no one else does. Once I know this, I can finish the last few calculators and have this done in a few hours.

Let me know. I'll be working on the calculators for a while tonight...

[Rinkrat456]

I have today and tomorrow off, so I'm going to run a bunch of time slips through my site to see if that will work for the 60' times. I'll be on all night.

[Rinkrat456]

These are just some S-truck times I found while over on S10forum

Driver A
3800lbs
R/T - .910
60' - 2.322
330 - 6.616
1/8 - 10.174
MPH - 68.86
1000 - 13.283
1/4 - 15.872
MPH - 87.07


Driver B
3740lbs
R/T .568
60' 2.404
330' 6.766
1/8 10.403
MPH 67.96
1000' 13.511
1/4 16.158
MPH 84.51

Driver C
3100lbs
60-1.65
1/8-7.67
mph-90.60
1000-10.05
1/4-12.048
mph-113.31

I just wanted to post these so I can work off the thread instead of print this.

[Injected]

A: 195.77
B: 176.18
C: 351.98

[Rinkrat456]

Show off lol. :D I was just tired of writing all the time slips down and/or printing them off when doing the calculations and then forgot about finishing.

Odd that you get higher numbers than my online calculator, yet reassuring that our two sets of numbers are close. It's probably due to rounding differences here and there, as always.

A)187.83
B)175.23
C)350.35

[autopat]

How about: 3615 race weight, 490hp?

[Rinkrat456]

Injected, see how close you get to these numbers for autopat:

11.34 seconds @ 120.20mph

[Injected]

I get the same. I'm betting it's the same formula. But is 490 wheel or crank power?

[autopat]

Crank. It's the stroker I just finished for the Nova, there's a bunch of pics of it on my cardomain page under the Nova tab.

[Injected]

Crank. It's the stroker I just finished for the Nova, there's a bunch of pics of it on my cardomain page under the Nova tab.
So if we assume 15% drivetrain loss, then we get 416.5, which gives 11.97 @ 113.86.

Here's an interesting point, as more power is made, drive train loss increases.

[Rinkrat456]

Here's an interesting point, as more power is made, drive train loss increases.

I know where that thought is going...don't even try lol.

[aggressive350]

300HP at crank , 3070pounds

[Rinkrat456]

13.350 @ 102.098mph.

[aggressive350]

thats pretty fast.. i think i could be pretty damn happy with that since it is daily driver. lol until something beats me that i think shouldnt LOL :devil:

[Rinkrat456]

thats pretty fast.. i think i could be pretty damn happy with that since it is daily driver. lol until something beats me that i think shouldnt LOL :devil:
You're going to need drag slicks, cal-tracs and the Ford 8.8 to do that. Traction is the killer. The 327 is a good choice though because it builds most of it's horepower in the higher RPM's with such a large bore and short stroke.

[aggressive350]

will these work
http://i173.photobucket.com/albums/w53/aggressive888/M54-ET-Street-Rad.gif

[97v8s10]

Try me! Try me!

275hp (probaly at crank) 4600 pounds

[Ryan]

There are plenty of sites out there with 1/4 mile calculator and they vary a little here's one http://www.robrobinette.com/et.htm

its says beckner wil run a 15.7 I don't know how acurate it is

4600
275 flywheel hp

[Rinkrat456]

I get the same thing.
15.726 @ 86.672mph

[97v8s10]

Man that's slow for a vehicle that's so peppy!

[Rob]

Man that's slow for a vehicle that's so peppy!

That 4600# is killing you. My truck is 600# less then yours and I'm running that E.T. with much less power.


Edit: Are you talking about your Trailblazer?

[Injected]

That 4600# is killing you. My truck is 600# less then yours and I'm running that E.T. with much less power.
Yeah, let's see what that supercharger does to your ET and Traps, eh? Less typing, more working...

[Rob]

Yeah, let's see what that supercharger does to your ET and Traps, eh? Less typing, more working...

BURN! I'm working on it tomorrow. I couldn't work on it this past week since I needed to study for a Calc III test.

[97v8s10]

That 4600# is killing you. My truck is 600# less then yours and I'm running that E.T. with much less power.


Edit: Are you talking about your Trailblazer?
Yes.
I'm gonna have to looks into performance mod for this I6. I need to wake it up!

[97v8s10]

Yeah, let's see what that supercharger does to your ET and Traps, eh? Less typing, more working...
Yeah! What Injected said! :D

[Rinkrat456]

Yes.
I'm gonna have to looks into performance mod for this I6. I need to wake it up!
Finish your truck first so you have room in the garage. :rolleyes:

[Rob]

Yes.
I'm gonna have to looks into performance mod for this I6. I need to wake it up!

...cough...turbo...cough...

[97v8s10]

Finish your truck first so you have room in the garage. :rolleyes:
I can push it into the corner! :rolleyes:

[97v8s10]

...cough...turbo...cough...
Maybe I'll look into a ....cough...turbo setup after I sell my rims!

[Rob]

Finish your truck first so you have room in the garage. :rolleyes:

Lets have a race to see who get's done their projects first.

Maybe I'll look into a ....cough...turbo setup after I sell my rims!

It would be a good candidate like the I5.

[97v8s10]

Lets have a race to see who get's done their projects first.
We all know who the winner will be.....cough...Rob!.....cough.

[Rob]

We all know who the winner will be.....cough...Rob!.....cough.

Maybe, how much more you got?

[97v8s10]

Maybe, how much more you got?
Alot. I still got a little bit of fab work left for the air ride setup in the rear. Then I need to get new bags for the front cause the 2500's I got not don't lift worth a crap on a bodydropped truck. Then a lot of body and interior work!!!!!

[Rob]

Alot. I still got a little bit of fab work left for the air ride setup in the rear. Then I need to get new bags for the front cause the 2500's I got not don't lift worth a crap on a bodydropped truck. Then a lot of body and interior work!!!!!

Oh, I'm just talking about finishing the suspension and getting the bed back on, that's all.

[97v8s10]

Oh, I'm just talking about finishing the suspension and getting the bed back on, that's all.
Well if that's the case then finish the fab work on the rear, get a bigger airtank, new front bags, fab up a bracket so I can mount up my engine driven your compressor, lots of odds and ends and bodydrop the bed!

[Rinkrat456]

Any new updates in the project thread of yours?

[97v8s10]

Any new updates in the project thread of yours?
Nope! Nice sig by the way!

[Injected]

Nope! Nice sig by the way!
Ditto to that. I really like Rob's new title as well...

[97v8s10]

Ditto to that. I really like Rob's new title as well...
When are you gonna change yours?

[BadToad454]

cough, what is everone getting sick in here ? I hope i dont get whatever youll all got!

[Rinkrat456]

Ditto to that. I really like Rob's new title as well...
You have the same capabilities. Check around your profile options to change your member status.

[Injected]

You have the same capabilities. Check around your profile options to change your member status.
Sure, any suggestions?

[97v8s10]

How bout......"Mr. Brain"!!!! :p

[Rinkrat456]

Sure, any suggestions?

Forced Induction Guru

[Injected]

Forced Induction Guru
I like it. I'll take it.

Thanks.