Spark Plug Gap Size
Thread Starter
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
Spark Plug Gap Size
Presently, in my 383 I am running NGK TR6 gapped at 0.038". I have a MSD 6AL, and 8 mm Taylor Spiro Pro plug wires.
From doing some reading, I found that with my higher spark aftermarket ignition, I don't need the gap so close and would probably be better at about 0.045" - 0.050".
I also run nitrous, so can someone tell me which gap would be best for me? I don't run cut back plugs...yet...just haven't gotten around to it.
From doing some reading, I found that with my higher spark aftermarket ignition, I don't need the gap so close and would probably be better at about 0.045" - 0.050".
I also run nitrous, so can someone tell me which gap would be best for me? I don't run cut back plugs...yet...just haven't gotten around to it.
Thread Starter
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
Re: Spark Plug Gap Size (black_89_vette)
I also run nitrous, so can someone tell me which gap would be best for me? I don't run cut back plugs...yet...just haven't gotten around to it.
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
Re: Spark Plug Gap Size (black_89_vette)
With a hotter spark you could run with wider gap NA, but NOS builds higher cylinder pressure which takes more energy to begin the burn so I wouldn't open the gap much if any.
