did it feel like the car slowed down, stuttered, or felt like u hit a brick wall for a brief second?

 

thats not good

 

the car did slow down quite a bit for a second

 

Fuel cut... Most likely. Get the car tuned. Flash the ECU, or get an Apexi SAFC-II. Prolly wouldn't hurt to get a Walbro 255lph fuel pump (theyre like $100 I believe) Although Idk if you need one yet for the evo. Believe me fuel work is your friend when you drive a turbo car. It is a very good safety investment! tune the car or it will detonate, and at some point BOOM! Thats what happened with my Talon and I learned the hard way.

 

what rpm is this happening at?

 

Yeah, what he said.

 

4500 rpm

 

ok at first it was 5th ...now its 4th gear....so you havent had a tune? sorry didnt read all the posts....what are your mods

 

no tune.... i have had these mods for about 3 months now... turboxs manual boost controller, act clutch, hks rs intake, carbon ti exhaust, rear sway bar, lowering springs, and hks ssq blow off valve and upper intercooller piping.

 

Get the tune done.. Detonation is happening i bet.. Woah woah woah.. wait. Please tell me you have a boost gauge since you have a MBC hooked up? Sorry, not trying to be an @#$ but this is very important. Do you have a boost gauge, and what boost are you running?

 

no, why would i have a boost gauge?


haha of course
i do
im running 21psi

 

LOL! GOOD! At first I thought you didn't and I didn't see thta bottom part.. But yeah, when you ripp it in those higher gears, chgeck your gauge.. I bet it creeps above 21psi. Go check, come back, and tell me. If it does this, you need to do something about tuning the car!

 

from my understanding, if you are going to pass someone you should downshift. the boost pressure raises higher than what you think. and is still extremely stressful(although) it doesnt feel like it

 

i bet its in the lines with the bc or bov

 

Resolve the issue yet?