tim85851

iTrader: (23)

Heres the problem...

When I go WOT (in any gear) on my friends 2003 Evo VIII it stutters and barely moves like something is clogged somewhere or something...ocassionally it will backfire but it sounds like a backfire from the engine bay not the exhaust...

it boosts 16psi and it takes forever to get to 7000rpm...then after that run we pop the hood and the turbo hotside is RED HOT im talking about GLOWING...

what could be the issue here?

the car is BONE STOCK other than a open filter and a mbc...the mbc is set to the lowest setting (Forge UNOS)...its been acting up for a while now...

any suggestions as to what might fix this problem will help greatly!!!

tim85851

iTrader: (23)

if it means anything when the car is at idle the boost gauge reads -20...

tim85851

iTrader: (23)

bump for help!!!

buchnerj

iTrader: (19)

I am confused. So the car will barely move at all when it is in gear? or You can drive it and just at WOT it starts to sputter? You can still accelerate under some gas right?

tim85851

iTrader: (23)

yes when the gas isnt at WOT the car is ok...under full boost/WOT something happens...and the car feels restricted...

after doing a run of 2000rpm to 6000rpm in 2nd gear which took a while to get it that high the hotside was RED HOT...it freaked me out so we didnt boost anymore after that...

tim85851

iTrader: (23)

its not performing like a NORMAL evo should...
if i go WOT i expect his car to throw me back in my seat a little (seeing that its stock)...

BlueDemon

iTrader: (22)

Blown turbo or perhaps clutch slipping???

heavens turbo

plugged cat? kick the cat and see if it rattles. i see your mod list. is it really stock?

tim85851

iTrader: (23)

i really doubt it could be a blown turbo and he just replaced the stock clutch...

tim85851

iTrader: (23)

i was thinking this too...but didnt know how to check it quickly other than to take the exhaust off...this weekend i will definetly disconnect his down pipe to see if it fixes it...

my car is running fine...this is my friend's 2003 evo...

05blue8

iTrader: (28)

Do you guys have any way to log it? That could tell you something...

evillancer06

iTrader: (5)

+1 on checking the cat. Sounds like its clogged up.

tim85851

iTrader: (23)

awesome more people think its the cat...so im going to be disconnecting his downpipe and see if that fixes his problem! any other suggestions?

evillancer06

iTrader: (5)

whats the miles on the car?

tim85851

iTrader: (23)

hes got i think around 80k...might be in the 70s...