Spark plugs?
Thread Starter
Racer
Joined: Jul 2007
Posts: 256
Likes: 0
From: Glasgow, Scotland
Spark plugs?
ive got a 78 vette, L48, could have modded clylinder head tho
what spark plugs should I use in the L48?
Ive been told NGK - BPR4FS is this correct?
and also what gap should i have??
cheers
dave
what spark plugs should I use in the L48?
Ive been told NGK - BPR4FS is this correct?
and also what gap should i have??
cheers
dave
Thread Starter
Racer
Joined: Jul 2007
Posts: 256
Likes: 0
From: Glasgow, Scotland
what happens if u stick NGK's in at a pre gapped 1.5 which is double 0.6??, ive put them in with the bigger gap, seems to be running fine!. its stopped my poping and bangs in the zorst!, wider the gap leads to more power?? any probs running wider gap?
Drifting
Joined: Jan 2006
Posts: 1,944
Likes: 22
From: Yooperville MI
Your gap width is determined by the ignition coil you are using. If you are using a stock coil, gap the plugs at .035". Higher output coils will allow you to open the gap wider. However, a wider gap with a stock coil will put more load on the coil and most likely shorten the coil life since the coil needs to work harder to jump the wider gap.
