i have evo8 stock! the car seems fighting to achieve high rpm! i dont feel it at 1rst an 2nd gear but at 3rd and above u can feel it dying! and even if am having a friendly race with any car(ex:z,jdm type R not stock), i jump on 1rst and 2nd and he is starts gaining and overtaking me!
plz i need all ur input for that!!

 

do your hear any type of whistle when you get higher rpms? if so it might be the snorkel that connects to your stock airbox that needs to have the pins in there to hold it in place. give some more descriptions of the problem

 

my snorkel is well held in place!
when i change from 2nd gear to 3rd the rpm is at 5000 i feel the car stop pushing!

 

maybe you have a boost leak?
so you have a boost gauge? how much is it boosting??

but stock evo 8's are very slow. definately slower than 350z's on the freeway.

 

probably slower than Z but not slower than a type R which has 240hp!!
i will check my boost today and update u guys!
if i dont have boost leak what other things can cause this?

 

was anything changed recently?...oem parts, fluids?

 

i did car check and service 2 weeks ago!

 

do you have a boost gage installed?

 

nop i didnt install it yet but i have a gauge got it from my mechanic to check the boost! am gonna check soon today!

 

thats most likely what it is..keep us posted...double check all the hoses too if you already haven't done so, something could of easily came loose.

 

when i checked the boost like a week ago it was holding, but my car still didnt feel like moving!
i will check it today, but i want other options to check since am sparing time for it today!
any idea other than hose?

 

Do a full boost leak test, not just the visual check. Also you might want to check the plastic BOV, as I have seen it fail to hold boost.

Make sure the car is breathing right, i.e. the whole intake system is ok including the air filter.

 

i checked the boost and the car is holdong boost(ofcourse it max then drop a little)! can it hold boost and it has a leak?

 

check your plugs(gap)and do a compression test , something could be wrong internal....or a boost leak test...reset your battery sometimes that helpes if the car is knocking or pulling timing....yes it can hold boost and still have a boost leak how many miles?

 

its 45kmiles, gaps are exact, boost is holding and as i know if i have a boost leak the boost wont hold (not at wot), u will see it drop!
i will check today compression test today!