Took the car down my local private runway last night.
The car pulls like a dream to around 140mph, but then after than it seems to stop and go, like it's hitting a speed limiter? The car has power and then dies off, then has power and dies off...
Thing is, the car does it from around 140-150mph (clock readings).
I did think it may be an over-boost issue, but why would it only do it at V-max?
I thought these cars were good for 160mph-ish with a Stg 1 remap (which mine has)?