Okay i have done a search for hesitation and loss of power, but none of these have helped me.
The car as you can see in my sig is a 33 s2, mods are,
3inch from turbo back,
FMIC
spiltfire coils
walbro fuel pump
boost controller and
pod filter.
Now my prob is when i give it a boot full the motor seems to "struggle" until it hits about 4-4500rpm, boost is set at 8psi, so my initial thought is timing playing up... as once the variable timing kicks in at 4000rpm or 4500rpm, whichever one it is, it is like boost kicks in and you get full power again. This is in atleast 1st, 2nd and third gears so assuming it does it in all gears. Coil packs and spark plugs are only 2mths old so i don't think it is any of them as its not a miss.
It feels as though i've lost power as the car takes forever now to get to 4000rpm, but as stated before once it hits 4k it like the turbo kicks in. IT is the standard turbo by the way and i have full boost by 3000rpm as the boost controller bypasses the factory solenoid. ECU is also stock. Maybe my CAS is playing up??? or my O2 sensor, these are things that other people had problems with that i found in the searches i did, but the problems these people had aren't the same as my problem.
Its like when a N/A motor struggles in the top end of the rev range, like when the carby isn't supplying enough fuel or not flowing enough air, but i can't see it being a problem with the fuel as the pump is also 2mths old and once it get past 4500rpm it goes all the way to redline like a scalded cat.
This has only just started to happen in the last week or so.
Any help would be appreciated
Cheers Adam.