Spark Plugs for Procharged 383 TPI
#1
Supreme Member
Thread Starter
iTrader: (4)
Join Date: Mar 2007
Location: NE Pennsylvania
Posts: 1,690
Likes: 0
Received 3 Likes
on
3 Posts
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Spark Plugs for Procharged 383 TPI
I am installing a Procharger D1SC onto my 383 that will be running around 10-12 lbs of boost. AFR suggests normally running fr3ls plugs in them as a start but says to go 1 to 2 heat ranges colder for a blower motor. Would I be better off with the FR2LS or FR1LS plugs? Anybody have any experience with these?
#2
Senior Member
Re: Spark Plugs for Procharged 383 TPI
In for pics.
#5
Supreme Member
iTrader: (20)
Re: Spark Plugs for Procharged 383 TPI
Whatever brand you use, find what heat range is stock. Built motor high comp, usually step down 1-2. Mild nitrous or mild boost, step down 1 more. Heavy nitrous or boost, step down 1-2 more.
I use ngk. 4-5 heat range is stock. Built na motor you run 6's. mild boost 7's. my heavy booster i run 8's
I use ngk. 4-5 heat range is stock. Built na motor you run 6's. mild boost 7's. my heavy booster i run 8's
#7
Member
iTrader: (4)
Join Date: Dec 2010
Location: Virginia
Posts: 122
Likes: 0
Received 0 Likes
on
0 Posts
Car: 88 Iroc Z
Engine: L98 350
Transmission: 700 R4
Re: Spark Plugs for Procharged 383 TPI
I've been running e3's e3.48 but I can't figure out if this is good plug for a procharged engine . Has anyone found a heat rating for these or had good luck running them supercharged?
Trending Topics
#8
Supreme Member
iTrader: (1)
Join Date: Apr 2008
Location: Utah
Posts: 10,401
Likes: 0
Received 2 Likes
on
2 Posts
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: Spark Plugs for Procharged 383 TPI
another one for the autolite 3923's and there cheap at $1.80 a plug
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
05-10-2023 07:19 PM
evilstuie
Exhaust
24
02-28-2016 03:33 PM
eightsixseven
Tech / General Engine
1
08-14-2015 03:09 PM