how much abuse can a n/a piston really handle

[duwackerTSi69]

Okay for those of you that want to jump to conclusions about searching, I have.

Everthing I found about the n/a pistons in the 6 bolt are from years ago, and say you cant run no more then 7-8 psi beacause of the week designe of the rings? I am doing this search for a friend, and he says that one of his friends has had a 6 bolt boosted n/a 4g63 in his 2g and ran close to 20 psi in it and that he will be okay. Im not to sure myself, and tried alot of searching, but like I said, all the stuff I found was from 2004 and earlier. Some not, but I dont listen to them because they are not that credible.

So, what I want to know, has anyone of this forum done any boosting with their n/a pistons?? And how are they holding up?? Thanks guys

 

[Heartless]

Well I don't know about the 6bolt n/a pistons, but I had a 1G 7bolt n/a with a 13b on it at 12psi daily and had up to 20psi on accident when my mbc went bad. I didn't run an intercooler and just had the blue top injectors (450cc) with turbo ecu with no fuel controller. I never had a problem with the engine, I heavily abused it daily, and it had 190psi in every cylinder when I pulled it out to build up a 6 bolt to swap in it. I'm not saying every engine can do this, and I was only running a 13b so it wasn't exactly pushing a ton of cfm's like a 20g or better. If you have access to e85 or race fuel, the high compression causing detonation (destroying the ring land's) wont be as big of a deal, which is the problem with the n/a pistons, the fact that the ring land's are closer to the top of piston making them more likely to break/crack from the detonation. For longevity your best going with a set of turbo pistons, or upgrading to forged pistons.

 

[duwackerTSi69]

Well thanks for the reply, first off. All the stuff you mentioned is what I basically have been reading. And you should know that on the internet, you read all kind of stuff, most if it contradictory. I just wanna hear from a dsm'r that had experience with this sort of thing..Ya feel me,..