I went to Powerstation today for a rolling road day with another forum. The place is to be fair pretty awesome - very swish and clean with friendly staff.

Right my car was run on the rollers with me and another well fed chap sat in the back, and in 5th gear. I wondered about this as I thought dyno runs are usually done in 4th, but the guy said it was to stop wheelspin. Temp in the dyno room was mid 20 degrees.

I was expecting to make around 370-400 BHP and about the same torque. (I know 400 is optomistic, but the car is quick on the road.)

The car is standard comp and cams - basically stage 3 and a bit - T34.63, -34, Siemens Blacks, 25/26mm ported head, RS 500 cooler, grp A cone filter and a Karl Norris livemap on L6 mapped to 32 psi peak 28 midrange and 24 at the limiter. Karl said when he mapped it its a good one.

The fucking old shed only made 325 bhp and 353 lb-ft. Where the hell has 50 bhp gone? It drives fine - smooth as ever, is not using anymore oil than is usual with these, economy is unchanged, no missfires or stuttering, yet I've lost 50 fucking horses.

The graph looks fine to me, shape wise:



I asked him to stop @ 6.5k as I'm on track tomorrow @ ford fair and didn't want any damage, and power is still climbing but looking at how shallow its climbing its not gonna go past 335 before the limiter.

So, is my engine fucked? Was I being deluded expecting that kind of power? Do powerstation's rollers read low? Something else?

Its not making anymore power than it would have done on a bloody T3!!