i have a problem that i really need a help with it guys
My car is producing 400 Hp everthing stoke accept the air filter and headers a
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

My car is producing 400 Hp everthing stoke accept the air filter and headers a


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