23-09-2012, 08:48 PM
(23-09-2012, 08:41 PM)Dum-Dum Wrote: Ruan I appreciate what your saying but the OP is taking about a (Im assuming used) T25 turbo that was designed at some point before I was even born.
I do appreciate what your saying about stroking and cams moving in opposite directions but if youve looked at the milder performance cams for the 6 they dont move the peak power any further up the rev range.
Anyway for comparison
This is based on the data contained in Petes GTi6 standard power graph and the 2 graphs below, the 230bhp is a 2.1 and the 250bhp is a S/C
http://i49.photobucket.com/albums/f257/m...Rgraph.jpg
http://img.photobucket.com/albums/v247/c...asd001.jpg
Ill remind you that the S/C will have a bit more low down and mid range than a turbod car also the S/C is running a little more boost than the OP is talking about so making a little more power. If i could find one to do a 230bhp N/A to 230bhp boosted comparison but i reckon it would be pretty interesting.
Dum the low boost rotrex charger is shit low down, and as a general rule turbos have much more lower down than a charger, if sized correctly.
The lynx low boost charger isnt a great example of what you can achieve with that application, a bigger charger Like the 38-94 They use with the high high boostengines with a restrictor ring would be better For the significant increase inow down torque it privides.
either way a turbo properly sized is a step up again in torque levels all over the rpms
also didn't Pete's gti6 make 150bhp cause it was a. It of a tapper? Or was it fuelling issues?
either way its hardly the best comparison...
'99 Ph3 Diablo Gti(Victor) Dead
Astor 'X' 4 GTi6-6 - SOLD!
'08 LY Renault Megane RS 230 F1 Team R26 - GONE
'56 BMW Z4 Coupe 3.0si Sport - SCHWIIIING!
Astor 'X' 4 GTi6-6 - SOLD!
'08 LY Renault Megane RS 230 F1 Team R26 - GONE
'56 BMW Z4 Coupe 3.0si Sport - SCHWIIIING!