spark plug
 

Hi,
What kind of spark plug heat range should i be running on a boosted engine...let's say a ZC with a T-3 boosting 8 psi.

Re:spark plug
 

NGK V-Power copper plugs, $1.69each...

Re:spark plug
 

But what kind of heat range?
The cumbustion chamber gets hotter so I would need a spark plug with a different heat range than when I run without a turbo

Re:spark plug
 

To prevent pre-ignition.

Re:spark plug
 

88 CRX Si plugs stock # 1273 i believe...

Re:spark plug
 

I am running 2 ranges colder NGK ZFR7F-11 is the part number. the seven represents that heat range, 5 was stock and now using 7. My engine is D16Z6

Re:spark plug
 

I have never ran colder plugs in any of my setups..

But thats just me.

Jeff

Re:spark plug
 

Hmmmm.... Maybe I don't need them then, then again I guess it can't hurt. can It?

Re:spark plug
 

Oh ok...Thanx for the help

Re:spark plug
 

Well if you have problems with detonation you can go colder, but just run the stock heat range and pull them every few thousand miles and check them, if theyre glazed or somthing you might have to go colder.