Help with spark plugs
Thread Starter
Member
iTrader: (4)
Joined: Nov 2006
Posts: 223
Likes: 0
From: Long Beach, CaLi.
Car: 95 MC Z34, 93 Caprice LTZ L05
Engine: 3.4 DOHC, 5.7L TBI
Transmission: Auto, 700R
Axle/Gears: ???, 3.08
Help with spark plugs
I wanted to know since I have an MSD coil, wires, and distributor should I gap the plugs at factory specifications or do I need to up the gap, I have 1988 Iroc w/ 305 TPI engine.
thanks
thanks
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
You don't "need" to widen the gap, but you probably "can" widen the gap.
Supreme Member
Joined: Mar 2002
Posts: 4,812
Likes: 0
From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
no need to, its not going ot improve anything
.045 is way plenty
do other things such as larger wires, 454 module, etc
the goal is a nice white hot spark
in which the stock system and wires provide when in good conditon
aftermarket ignition parts and such are overrated imho
good luck
.045 is way plenty
do other things such as larger wires, 454 module, etc
the goal is a nice white hot spark
in which the stock system and wires provide when in good conditon
aftermarket ignition parts and such are overrated imho
good luck
Thread
Thread Starter
Forum
Replies
Last Post
90formulaVortec
Interior
1
Sep 8, 2015 12:42 AM
89 formula TPI
Tech / General Engine
10
Sep 7, 2015 11:06 AM
