I was wondering what is the stock boost on a 03 evo?

i dont have a boost gauge so i was wondering.

also whats the most boost you can run on a stock turbo w/ these mods

upper n lower ic piping, intake, 255lph fuel pump , turbo back exhaust (no cat),



i am planning on getting a boost controller this week n a boost gauge so i was wanting to turn it up. could it hold 24psi or what else would i have to do to it?

 

19.5 psi stock.
22 psi on 93 oct with your mods.

 

thanks man. do u know how much psi this stock turbo holds? also what could i do to reach 24-25psi if it can hold that much>?

 

its not the fact that it cant hold that much i mean it can hold 29 with alky

so its what you wana do but 24 safe thats would be a NO

 

or does it need a really well tune?

 

I don't want to hijack your thread but I was wondering how much boost a mostly stock Evo could run?
I have a K&N drop-in air filter, and 3 inch turbo-back exhaust.

 

With a fuel pump and 93 octane you can 23/24 but it will depend on the car and your tuner.

 

Installing a TBE should actually allow your car to boost about .5-1 psi more already.

 

it comes with 19.5 when u frist buy it? i thought it was like at 10 or 12 or something like that. kinda surprised.

 

i spike 23 or 24 with my mods, runs perfect.

 

Yes, you always need a tune to get maximum results from mods.

 

How do so many people not know the stock boost outputs of these cars lol? Anyway the search button whould be a huge help because I know for a fact this has been asked 10873569 times if not more.

And to get more in detail stock 03-04 Evos peak 19.5 but taper to 16 at like 5-6k to redline. so it doesnt hold that high. The 05-06 Evos will hold up there

 

My 05 is acting like an 03 then. In first and second it looks like I am only boosting 15psi, if I run a long load on 3rd gear it will hold at ~ 19-20psi then taper down to 16 in the upper RPMs. I'm gonna check for leaks this weekend, I think the car let out a howl the day before yesterday, but being in traffic I don't know if it was me or someone else's car...

 

Dont worry about boost in 1st and 2nd, it will never be at 20lbs. You check your boost in 3rd gear, which you did and looks like everything is fine.

 

Keep in mind the stock VIII BOV leaks at like 17PSI so anything higher it wont hold to well up high.