Been thinking allot recently, mainly bought on by repeated quite "modest" rolling road results.
Should throttle bodies increase the rpm at which peak power is made, or should it just increase power over the whole range by X and peak on or around the normal peak.
In my understanding the cam totally governs the power band, i still have the standard cams which realistically are best between about 2000 and 6200.
Ive had 3 rolling roads post throttle body fitting, the most recent 2 have been about 180bhp with a peak of 6k, the first at gerald dale made a peak of around 190-195 at 7k. That was with filter too.
So is gerald dale over reading, or have i really lost 20bhp and 1k of rev range ? Mapping hasnt changed, fuel pressure hasnt changed.
I know the bottom end isnt exactly a spring chicken, but could a slight loss of compression really savage as much as 20bhp ? I fear i might have noticed had i not been progressively lightening the car, maybe masking a gradual powerloss ?
uuuggh, got way too much thinking time these days.