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View Full Version : Spark plug range question


vortechman2443
04-13-2008, 09:36 PM
Alright, I know this is a really stupid question, so go easy on me. Im upgrading my spark plugs and wires cause my engine build is shifting into high gear for summer. Im getting JBA headers, Magnaflow High Flow Cat, Hypertech Power Programmer to program to run on premium, and nitrous. What heat range should I go for? Im getting Bosch platinum 4s, and its a 4.3 Vortec V6

yucrysoez
04-13-2008, 09:46 PM
All I have to say is don't don't don't get bosch. I had a pair of platinum 4s and i was misfiring 3 weeks later. Also if you google bosch you get a tons of bad reviews. You can't go wrong with AC Delco though. I have some yellow Accel 300+ thundersport ferro-spiral core; 8mm wires and run great on my s10.

vortechman2443
04-13-2008, 09:53 PM
Wow, youre right... Thanks man, saved me some money. What range should I use with future mods. The spark plugs are last on the list.

Mr.GoodWrench
04-13-2008, 09:58 PM
I wouldn't do anything different. Bosch Platinum 4s have mixed reviews with people in GM vehicles. I've seen em run mint, and not so mint. I personally think they're a good plug. But anyway, an exhaust job and a hypertech won't do f all hardly for combustion chamber temperatures. Premium makes no difference either. By the sounds of things this will be driven daily, so how often really are you gonna be on the spray? I wouldn't mess with the plugs. If you HAD to do something different, 1 range colder.

Rob
04-13-2008, 09:59 PM
Wow, youre right... Thanks man, saved me some money. What range should I use with future mods. The spark plugs are last on the list.

NGK TR6 P/N 4177. One stage colder then stock. I wouldn't run platinum plugs. If you plan on running an MSD, which I highly suggest with N2O, you need to run standard plugs.

vortechman2443
04-13-2008, 10:05 PM
Yes, it will be daily driven. So pretty much leave the spark plugs alone for the giggle gas, and the one you listed w/o it, right Rob?