Donations towards server fund so far this month.

£0.00 / £100.00 per month
Home > Help Needed / General Tech Chat > What psi boost


17 Posts
Member #: 12187

Hi just wondering what boost I should aim for. My compression ratio is going to be around 8:5 8:6 and I my aim is for 130bhp.


User Avatar

346 Posts
Member #: 10128
Senior Member


Really depends on your setup, control and usage. But 12-14psi on a T3 would probably get you there.


17 Posts
Member #: 12187

I think its a T2 not 100% sure as I got it part of a kit with mirage manifold.
18cc forged pistons flush with the deck
21cc mse6 head
Running an intercooler asI have been advised to run one. It's gonna be everyday drive

Mr Joshua

User Avatar

2367 Posts
Member #: 1954
Post Whore

Luton Bedfordshire

A friend is/ was running a 1293 on a T2 and was achieving 163 bhp on 12psi

Own the day


181 Posts
Member #: 11017
Advanced Member


Different rolling roads will give different results. They're just pub figures as you rarely operate at the peak BHP anyway. As long as it's fuelled and mapped correctly, and your gearbox isn't made of cheese, you can run around 15psi without any struggles.

Edited by Steve220 on 1st Jun, 2022.


3501 Posts
Member #: 655
Post Whore

Northern Ireland

Cheese would be an upgrade for the gearbox lol

9.85 @ 145mph
202mph standing mile
speed didn't kill me, but taxation probably will

Home > Help Needed / General Tech Chat > What psi boost
Users viewing this thread: none. (+ 1 Guests)  
To post messages you must be logged in!
Username: Password: