cybermecium Posted November 14, 2006 Share Posted November 14, 2006 Are the stock dished pistons good for a 300HP turbo setup with an N42 block and N42 head? I plan on running a T3/T4 .72 ar stock ZXT intake and exhaust manifolds... How do the stock N42 dished pistons hold up in a turbo application? thanks Jake Quote Link to comment Share on other sites More sharing options...
oinojo Posted November 14, 2006 Share Posted November 14, 2006 Are the stock dished pistons good for a 300HP turbo setup with an N42 block and N42 head? I plan on running a T3/T4 .72 ar stock ZXT intake and exhaust manifolds... How do the stock N42 dished pistons hold up in a turbo application? thanks Jake SEARCH NEWBIE.... j/p jake... its jon btw... you should be good up to 300 on that setup, any more then the piston skirts start to fall apart Quote Link to comment Share on other sites More sharing options...
cybermecium Posted November 15, 2006 Author Share Posted November 15, 2006 What about the stock valve sizes and cam profile for the N42 head. Is that any useful for turbo or should I just buy a complete L28ET and start with that? Quote Link to comment Share on other sites More sharing options...
Sparks280zt Posted November 15, 2006 Share Posted November 15, 2006 You should be fine, you will probably need an aftermarket engine management system. Dont use the zxt intake if you still have the intake of your n42. Quote Link to comment Share on other sites More sharing options...
LT280z Posted November 15, 2006 Share Posted November 15, 2006 You will want to run a p-90 or p-90a(tick,tick) and possibley a 1mm or 2mm head gasket depending on your desired compression ratio. you cant run alot of boost with the 42/42 combo. I am currently in the final stages of fab work with my turbo car...which has a n42 lower end (stock pistons) that i outfitted with arp hardware, bearings, etc, etc...the ring lands are whats has me concerned but i guess I'll find out the outcome in about a week. search "Z Calculator" above and play with different heads on the n42 block until you find your desired compression ratio. My car will be running right at 6.8-7 so it will be a turd out of boost but im cool with that. I wanted something i could drive around nice and slow....then turn the boost controller up a little and have some fun. Also if you go p90 you already have the cam. Quote Link to comment Share on other sites More sharing options...
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