who wants to have a guess,,,,?

[Robert Lees]

ok , anyone willing to have a stab at the BHP figure for my chimaera? I haven't had it rolling roaded so no idea, just for interest.
1997 4.5 , has act induction kit (heat shielded), piper Ross filter, plenum spacer (?)and act trumpets.
Out of factory 285 BHP + mods ? another 10 - 14 years loss - 25 = 270 BHP ?

Makes no odds still goes like stink!

[ewan221]

My 4.5 with no mods did 257 on a RR that's got good rep for not being generous with the figures.

[haircutmike]

265, the original figure was exagerated by TVR.

[Alexdaredevilz]

270

[fausTVR]

266

[Dr Mike Oxgreen]

My supposedly unmodified 450 made 276 bhp at Surrey Rolling Road last year. That was a very surprising result; there's no mention of a cam shaft change in the car's history file, so I wonder if it came with a different cam from the factory?

[Robert Lees]

Its got mark Adams tornado chip too forgot that bit. Tbh anywhere near 270 would be nice, I suspect the torque is up too as I have heard the upgrades that have been installed generally increase torque rather than BHP.