Had my standardish coupe roaded today (Gtec 1, PRV set to just 1.1 bar and decat, otherwise standard). I made 234bhp at the fly which I was pleased with, seemed about right for that boost level. The power at the wheels though was 205 which to me seemed really high. I'm sure my last coupe was similar at the fly but only around 190 at the wheels. 253 lb/ft of torque seemed healthly too. Comments welcomed

I'm not an expert on all this dyno transmission loss lark, but 30-odd bhp for a fwd sounds about right to me.

Puma racing use this rule:

FWD cars - add 10 to the wheel bhp and then divide the result by 0.9

With the rule you get 238 hp at the crank.