Need Help with lexus trd suprthcarged !!!!

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Joined
Jan 31, 2013
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i have a problem that i really need a help with it guys
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My car is producing 400 Hp everthing stoke accept the air filter and headers a
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When I accelerate from 0 to 120 km/h it is very good and fast after 120 the car will lose the power!!! I mean going from 120 to 140 it is like the car is going in a jelly wall after 140 its getting better!! keep in mind from 0 to 60 is first gear and 60 to 120 is second and 120 to 160 (I think) 3 gear so when it shift to 3 gear the car immediately losses maybe 80% of power and the rpm will stay in 3k-4k and then climb very slowly

and Today I figured something when I’m not pressing the throttle full let’s say 80% the car move faster from 120 to 150 I mean very fast but in full throttle it will lose power could it be transmission ?


(Thing I have to do: I have exhaust leak and torque converter seal is leaking so the gear is leaking fresh oil coming from the trans fair case )

Any help guys  thanks
 
There can be fuel problem as well. Check the pump. Or try unichip management
 
You drive it up to 150km/hr? Wow, that's fast!
 
arbetrader
the maxemum speed that i did achive with my lexus with stoke tire is 247 (153 mph)km/r :p


SaadUK
do you think it is from fuel tuning ?


SR.GRINGO
i will talk to him thanks

NEED more help guys !!!!!!
 

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