I feel like this should be in the technical section!
I've got a BMW 2002 turbo with the E30 engine, fully uprated drivetrain and chassis with a couple of engine upgrades..
But I've got a weird problem where it just randomly loses power, the revs will drop right down to around 3-4k and I usually have to change gear to try and get my power back. I've got all the assists turned off except ABS so I've no idea why this is happening! It's making me lose races.
Any ideas? Do I need to tune the car or something?