What mods have you done then mate? As i'm now on my 3rd Calibra and pretty much know every in and out of tuning all 6 models. If your running 6.5secs to 100km, you will need to be well over 200bhp.
Heres a couple of rolling road resaults to show you what I mean.
Calibra 16v (Red Top).
Power at Flywheel (BHP) : 150
Weight without Driver (KG) : 1218
Power to Weight Ratio (BHP Per Ton) : 125.13
0 - 60mph (Secs) : 8.40
0 - 100mph (Secs) : 24.26
60 - 100mph (Secs) : 15.85
Quarter Mile (Secs) : 16.85
Terminal Speed (MPH) : 83.35
Calibra 2.5 V6.
Power at Flywheel (BHP) : 170
Weight without Driver (KG) : 1340
Power to Weight Ratio (BHP Per Ton) : 128.90
0 - 60mph (Secs) : 8.17
0 - 100mph (Secs) : 22.91
60 - 100mph (Secs) : 14.74
Quarter Mile (Secs) : 16.60
Terminal Speed (MPH) : 85.12
Calibra Turbo 16v.
Power at Flywheel (BHP) : 201
Weight without Driver (KG) : 1374
Power to Weight Ratio (BHP Per Ton) : 148.64
0 - 60mph (Secs) : 6.60
0 - 100mph (Secs) : 19.41
60 - 100mph (Secs) : 12.81
Quarter Mile (Secs) : 15.40
Terminal Speed (MPH) : 89.06
So unless theres something you haven't mentioned that you've done tou your car then it's almost impossible to get a standard, normally asperated 2.0 16v over 200bhp with out spending over £10,000.
The only way it can be done is either a turbo conversion, supercharger or throttle boddies and NOS.
This calibra belongs to me and my father, after he crashed the old one we shared money and bought this one because we both loved the other one (wich we still kept for parts - and because we didnt had the courage to get rid of it) "we are calibra freaks x)" and from time to time we go out and pull the car strings, the only mod i didnt mentioned (he told me this after i posted) is that he changed and moded the centralin after he had problems with the old one (i didnt had my license yet by that time), I know he used to do mod things in the car from time to time, but didnt told me what (he doesnt want me to tune up my ride - the cordoba 1.9 of the other post - and i think he doesnt want to influence me telling me all he has moded in the calibra) the only mods i know of are the ones above. But one thing i know, that car can do a 6.5/6.7 in his hands, I cant go lower than 7.5/8.0 though (it gets me frustrated =D)
I cant complain tough, in my cordoba (wich is just mine - its a SDI) I couldnt go lower than 10 yet, even with my new air filter...
Tell me if you have any sugestion for this one, mate.
When i come back from france i should have my recording camera fixed and i can show you the cali in action next time we try to do it
Regards, fellow calibrer