what the best spark plug ? 18 psi
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Hi i want to know what the best spark plug for my engine ( 408ci , 9.1 cr , 18 psi ) ??? ![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
TR6 = ?? gap
TR7 = ?? gap
TR8 = ?? gap
thanks
navy
![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
TR6 = ?? gap
TR7 = ?? gap
TR8 = ?? gap
thanks
navy
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Just because you can get away with running a 6 heat range doesn't mean it's a good idea at that power level.
I would run an 8 heat range plug with the ops combo. I run the Autolite AR94s since it's still a tapered seat plug for the AFRs but they don't last long with the cut back strap. I believe the 3911s are gasket seat and not sure how well those will work with AFR/stock style heads.
I would run an 8 heat range plug with the ops combo. I run the Autolite AR94s since it's still a tapered seat plug for the AFRs but they don't last long with the cut back strap. I believe the 3911s are gasket seat and not sure how well those will work with AFR/stock style heads.
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ive ran TR6 at a dyno'd 700 rwhp with a pt88 and i also ran the Tr6 at 20 psi around 800 rwhp with no issues and 23* timing on 93 octane. no issues what so ever, this was on a 4.8
to the OP, what size turbo? what compression? what grade fuel, what motor size all play a role in plug choice
to the OP, what size turbo? what compression? what grade fuel, what motor size all play a role in plug choice
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You are missing the point. We aren't talking about spending several thousands of dollars or paying thousands in labor to change them. We are talking $18 in plugs and 30 min. It's the cheapest insurance you can buy in this game. It's not like you'll lose any power. Why risk it?
#19
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You are missing the point. We aren't talking about spending several thousands of dollars or paying thousands in labor to change them. We are talking $18 in plugs and 30 min. It's the cheapest insurance you can buy in this game. It's not like you'll lose any power. Why risk it?