Following on from Ian's results thread, the sharp-eyed will have noticed that my bhp was, well, not of a figure that may have been expected - came out at 215 when it should have been around 235bhp (BSR's figure) - and may have wondered if something was amiss with the car, or whether there were dubious RR results. Simple answer to both is no. I trust Track n' Roads results and there were a good number of results today exactly where you'd expect them to be, be they Stage 1 BSR 1.9's, 2.0T's, 888 1.9's or boxed etc.
The problem with mine seemed to be simply down to the bl**dy Traction control still wanting to try and kick in at higher revs. As we know on a RR the front wheels are spinning, the rears don't, so the car thinks that it's wheel spinning madly and kicks in the TC. You can 'drive through it' until it appears to have disabled itself, but it can still apparently try and still re-engage as the system is still wondering is going on as the fronts are not just spinning a bit in relation to the rears, like if it was wheelspin on a road, they're spinning waaay faster than that.
Steve said that as it approached around 4,500rpm he could feel the TC starting to fight, then when it hit around 4600rpm it simply wouldn't rev any further. In the past I've had the TC turned off with Tech 2 for rolling roads - I didn't this time as I thought I could just drive through it. Plasma's laptop with his Vaux-Com couldn't turn it off either, and I don't have a TC switch as I don't have the plug behind the blank, so no options to resolve it.
The graph shows it a lot better than my waffling above!
They overlaid the Stage 3 graphs onto the Stage 1 run I did at the same RR last year - Stage 3 is all the solid lines, Stage 1 is all the dotted lines.
You can see the healthy dollop of extra torque (blue lines) that the Stage 3 has over the Stage 1. The peak figure was 281lb.ft and BSR's figure is around 273lb.ft so all matches up nicely. The torque reaches it's natural peak as that is reached much lower down in the rev range.
On that bhp graph though you can see that the Stage 3 plot up until around 4500rpm is also significantly raised compared to the Stage 1 plot - it's only as it approaches the 4500rpm mark that it then tails off, when it should carry on above the Stage 1 plot. At around 4,600rpm the curve just changes suddenly to dead flat, like it's being clipped, and it was here that Steve said he felt the TC. You can see on the Stage 1 plot that it was getting it's peak bhp at 5,500 revs, this time the car wasn't revving anywhere near that - it still had another 1000 odd rpm that it could still go.
So, I never got a true reading of what the bhp at the fly was, but never mind - next time I go to the RR I'll make sure I have TC tech 2'd off! I know the car on the road feels absolutely fine and the graphs show it's running nicely. Both torque and bhp graphs have a nice steep smooth climb, it's just the bhp one that then gets clipped.
As Dean (Plasma) was there today, and he'd been in the car when AndrewTi took my car for a spin that time back, I got him to jump in the car with Don Paul in the back (so that we had three people in it like when Andrew drove it) to see how he felt it compared now to then - I was simply curious. Driving your own car all the time you can sometimes get so used to the quickness that some days you don't think it feels quick! lol
After a bit of 'spirited driving' on the M25, Dean soon confirmed that is was every bit as quick as he remembered and a few glances at the speedo at different points of going through the gear/in gear tests soon backed that up!
So, that was my very long way of saying that the cars just fine, just in case anyone wondered if anything was amiss simply looking at the figures in the other thread.