Hot or cold plugs?
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Joined: Sep 2009
Posts: 40
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From: SAN FRANCISCO
Car: 87 GTA
Engine: L98 5.7 24#inj,World hds,MSD,nosmog
Transmission: 700R4 truck clutches,Trans go shift
Axle/Gears: 10 bolt chevy 3.73 limited slip
Hot or cold plugs?
I was wondering which is better for my setup.5.7 TPI world cast iron heads ,MSD 6A ign.,Taylor spiro 8mm wires,24# inj, 180 thermostat,port and polished plenum,slp cold air intake,TB coolant bypass,1.6 roller rockers with the stock cam.also what gap and fuel pressure. Any suggestions will be appreciated.thanks.
Last edited by SanFranCyco; Sep 26, 2009 at 01:15 AM.
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From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Hot or cold plugs?
You have nothing special that would require a colder plug. Use a stock spark plug or equivalent that will fit the heads and gap it to the factory setting.
Plug temperature is the temp at the tip of the plug. A plug just needs to be hot enough to burn off the deposits. Too cold a plug will foul up. Too hot a plug will cause preignition.
Plug temperature is the temp at the tip of the plug. A plug just needs to be hot enough to burn off the deposits. Too cold a plug will foul up. Too hot a plug will cause preignition.
Thread Starter
Junior Member
Joined: Sep 2009
Posts: 40
Likes: 0
From: SAN FRANCISCO
Car: 87 GTA
Engine: L98 5.7 24#inj,World hds,MSD,nosmog
Transmission: 700R4 truck clutches,Trans go shift
Axle/Gears: 10 bolt chevy 3.73 limited slip
Re: Hot or cold plugs?
thanks i was just aking. what about the fuel pressure?
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