S2K on a rolling road
Discussion
Just had my S2K on Farnborough College's rolling road.
The readings gave 208 bhp at 8429 rpm/127 mph in 5th gear. A bit upset with that, although it was with the air con on and they did say that the rollers hadn't been callibrated.
I cant believe that my ride is running almost 30 bhp shy....
Is it likely that if the RR had been callibrated I'd be getting a figure close to the claimed 237 bhp?
Anyone else had there's RR'd, where and what figures did you get?
Think I'll have to go to the annual Japchat RR day at Surrey, to see how it does and put my mind at rest.
The readings gave 208 bhp at 8429 rpm/127 mph in 5th gear. A bit upset with that, although it was with the air con on and they did say that the rollers hadn't been callibrated.
I cant believe that my ride is running almost 30 bhp shy....
Is it likely that if the RR had been callibrated I'd be getting a figure close to the claimed 237 bhp?
Anyone else had there's RR'd, where and what figures did you get?
Think I'll have to go to the annual Japchat RR day at Surrey, to see how it does and put my mind at rest.
Its a MY04 and only done 19k miles, after speaking to them again I'm guessing it is their calibration being the problem. Hasn't been done and they had the same problem with a monaro (came back with almost 100 bhp less than it should have).
They ran it in 5th first and 4th for the 2nd run. First ran gave more, although I think that the 2nd run aborted as gave peak power at 7400 rpm ish (203 bhp). They thought that the gear ratio would have been closer to 1:1 in 5th gear so more likely to get a better reading? I had no idea so took it as though they knew better.
They added that they'd had the RR set to 8000 rpm when it was new, as before mine they never thought they'd need more
I'll have to wait and see what Surrey RR brings in July.
They ran it in 5th first and 4th for the 2nd run. First ran gave more, although I think that the 2nd run aborted as gave peak power at 7400 rpm ish (203 bhp). They thought that the gear ratio would have been closer to 1:1 in 5th gear so more likely to get a better reading? I had no idea so took it as though they knew better.
They added that they'd had the RR set to 8000 rpm when it was new, as before mine they never thought they'd need more
I'll have to wait and see what Surrey RR brings in July.
I got the runs for free, my mates dad is head of the dept at the college. I helped him out when he had a bit of trouble with a car accident. Plus they used the graphs as a teaching aid to compare them with other types of engines.
I'm pretty sure the engines running well and the apparent lack of peak power was due to un-calibrated rollers/not being set for 9K RPM. The graph showed a very smooth torque and BHP curve and she's only done 20K now (18.5K at the time) with a full service history.
I may take her on another check up at another RR after xmas when I've changed the fluids & filters but in the mean time I'm content!
I'm pretty sure the engines running well and the apparent lack of peak power was due to un-calibrated rollers/not being set for 9K RPM. The graph showed a very smooth torque and BHP curve and she's only done 20K now (18.5K at the time) with a full service history.
I may take her on another check up at another RR after xmas when I've changed the fluids & filters but in the mean time I'm content!
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