Piston Question

[brim400ex]

HEY, I'M GETTING MY HEAD FLOWED FOR MID RANGE. I WAS wondering which piston would go better with it. 11-1 weisco or 10.5 je. can you still get je pistons? or will they just send the weisco. its for stock bore size, thanks.

[4TraxRider]

i have a J.E in mine now. If you haev the choice go for the 11.1. It will give you more power than 10.5, just make sure you run at least super premium in it.

[DaveEX7]

And be careful which 11:1 you pick, because some 11:1 pistons require race gas (ex. 110 octane).

[brim400ex]

thanks for the info, does anyone have any problems with wiesco?

[wilkin250r]

I don't have any personal experience with wiseco, but many people aren't too happy. Apparently they aren't very accurate with their compression ratios. Many poeple have ordered a 12.5 : 1 piston, but it actually ends up only 10.5 : 1

If that is the trend for Wiseco, your 11:1 could end up only 10:1 or lower, in which case you would be better off with the 10.5 : 1 JE piston.

something to investigate

[Silverfox@C&DRacing]

Originally posted by wilkin250r
I don't have any personal experience with wiseco, but many people aren't too happy. Apparently they aren't very accurate with their compression ratios. Many poeple have ordered a 12.5 : 1 piston, but it actually ends up only 10.5 : 1

If that is the trend for Wiseco, your 11:1 could end up only 10:1 or lower, in which case you would be better off with the 10.5 : 1 JE piston.

something to investigate

What he said :D
You pretty much took the words out of my mouth.

[brim400ex]

i thought that was only for the 440 piston, does it still apply to the smaller bores. my other question was weisco bought je so can you still get their pistons?

[gojk]

Can someone tell me the difference between the top of the piston and the top of the cylinder on a JE or Ross piston. I am wondering if wiseco is just a couple thousands off and that is where the compression is lost. I know my wiseco was a couple thousanths from the top of the cylinder. I do know that the wiseco dome was pretty tall though. Also what is a compression reading from a JE or Ross piston?

:D