Yes you can boost a high compression setup. It will also be less laggy though like others have said you will have to have a good tune. Also another reason why people run lower compression is so you can run more boost. In my own personal opinion who cares how many PSI your running when ur spankin someone. I've seen some pretty impressive high compression turbo setups.

 

lower compression also keeps the motor safe, easier to tune, less of a hassle with air to fuel ratios, leaning out richening ect.... also lower compression keeps detonation away higher compression runs more of a risk of detonation if proper air fuel ratios arent dialed in on the tune ect..... plus you must have a good fuel management system no fmu or chipped ecu i would recomend hondata or the such

 

also the lower compression isnt just to run more psi but to keep the psi down in the initial sleeves. the more compression you have and run boost (psi) the more pressure your stock sleeves are going to be under thus cracking a sleeve,melting a piston, ect those problems also can ariase

 

DO NOT boost your high compression motor.

I was running an 11.5:1 compression LS/Vtec motor with a turbo setup. (T3 off of a 2.5L mustang, blah blah. The kit I built was solid with proven parts). Anyway to make a long story short. I always ran on 94 octane gas. Dyno tuned on a hondata S200 system. No sign of knock.

After two months of boosting at 7psi my car began to overheat. Longer story short.... lower compression pistons, new block, etc. I found peices of my forged pistons missing, head warped but fixable, etc etc.

Do it right the first time and you will be much happier. Oh and the best is that the engine was a fresh rebuild with only 30,000KMS on it.
-Rik

 

even with a very fine tune, high compression already puts the sleeves under a good ammount of pressure, then you add boost on top of that even more pressure esp at over 11:5:1 compression.

most high compression turbo motors and sleeved blocks they can take the high pressures the compression and psi will create.

also it is true the lag wont be there as much for the higher compression build, but if you choose the right turbo for your application, you can get lag down to a minimum. just depends on the kit you go with

if you get a cometic headgasket you can prolly get the compression down a good ammount.

 

well everyone im sorry, i think im goin to stay away from it (even though i am in love with boost) considering the fresh rebuild, and its my daily. I will end up selling the kit, and saving that money for some more all motor parts....and maybe some hondata. thanks for all the help!

 

just get the thickest cometic headgasket you cna find and it will lower the compression to a safe ammount and then you are fine

 

u know..... that,

OR get a basic 300 dollar snow perforamce water injection kit.