i am about to turbo my poor mans type r, with work done to it, but i want to here the positives and negatives from those of you who are running higher than or equal to 10:1 compression with turbo. thanks guys, nathan

 

just ask anyone with a B16 turbo.....

 

or a stock gsr turbo...i talked to mtber about this..cuz i was about to buy a stock gsr bottom end..and turbo 10psi..and he said that its very possible but eventually the cast iron pistons will fail..so if u using stock pistons..itll work..ive even seen a dyno of a gsr stock at 13.5psi..but the reliability isnt goin to be worth it in the end..if u have forged internals..then..id think no higher then 10.5:1 would be ok for atleast 10 psi..

 

^thats what i'm trying to do LOL. john vegs says 280whp(8-9)psi done deal, but i wanna see what everyones pluses or minuses have been, so i can head possible prolems off before they start. thanks

 

yeah i have 10.1:1 arias pistons

 

id think 10-14 psi would be ok..and prolly b around 300-350whp depending on what else u have done..u have stock rods?

 

If your final static compression yields 10:1 you will be fine. I prefer 9:1 on pump gas street cars but 10:1 will be fine. Especially the pistons being forged

 

my overall compression is 220 psi, and yes the pistons are forged, the block is 81.5mm, its been blueprinted and balanced, 3 angle valve job, Golden eagle block guard, gsr girdle, acl bearing set, brand new gsr head from honda, and removed oil squirters. the motor is really strong, but i just didn't want to do all the cometic larger head gasket and head machining if i didn't have to at the 280 whp stage. the turbo is a T4/60-1 garret so i won't be heating the motor at 9 psi. i really like all the feedback, thats very nice of you guys, i appreciate it; it makes my build-up headache go away!

 

I have been running my 10:1 turbo motor making over 500whp on pump gas/ over 600whp on race gas for a couple years. Still running strong. Can't say much for my trannies, but I am getting there.

I replied back to your PM as well.

 

DO IT DO IT !! told itd work !! lol Just gotta take care of it !! And get a good tune