How much boost on stock bottom end?

[Future-GN-Owner]

Well I installed my RJC boost controller so the last couple days I have been tuning and tweaking and am now just over 20psi with no knock and right around .800 O2. I am 99.9% sure my GN has the stock bottom end and I was just curious if there is a certain boost range or hp range to stay under. The car just turned 59k and I dont really want to do a motor just yet. I would like to run around 23-25psi with the mods in my sig. Thanks for any feedback. Matt

 

[Danster]

I've seen most run around 21-22 psi with Alky. I think once your in that range, you will be happy with the power level.

But I'm sure those with Alky can give you better input.

Dannyo

 

[johnnyttype]

from what i have read, a stock bottom end can handle 500+hp as long as you do not detonate.

 

[turbocam]

BOOst

I run 28#s everyday on the street.No problems,just watch your knock.

 

[Royal-T-Ltd]

i run ~25#s [w/66mm P-Trim] in street tune 93-n-Alky - THE KEY IS TUNE - No knocky no problem:biggrin:

 

[gs462]

I run 28#s everyday on the street.No problems,just watch your knock.

I completely agree, ive run up to 29#s on my 100k stock shortblock. Long as you dont detonate it it'll be fine.

 

[Roc87]

28#, nearly 25 degrees timing, and 154k miles. have been pushing over 25# since 120k miles...Like others have said, zero detonation is most important at high boost level.

 

[Future-GN-Owner]

Thanks for the replies guys. Looks like I will keep creeping the boost up slowly and watching my knock and O2 numbers. I should have it dialed in just in time to put it up for winter Hopefully this winter I will get my wideband installed and possible a powerlogger. Thanks Matt