View Single Post
      10-11-2013, 10:08 AM   #248
saxonb
Second Lieutenant
Australia
70
Rep
287
Posts

Drives: E70 X5M Carbonschwarz
Join Date: Mar 2010
Location: Sydney Australia

iTrader: (0)

Quote:
Originally Posted by SickeM3 View Post
Doesn't go well then, because current data shows a loss of 100 ft/lbs from 5k-8k rpm on that, saying that the PD supercharger cannot meet high rpm requirements.

Does it say how much boost the STG3 is using? If its over 9 psi, its also not a good argument considering OEM strength of the S65.

As I said before, i prefer not to talk about a completely different motor arguing for the actual supercharger because it doesnt translate well for the S65. Thats unfair to those of you still expecting big things from it.



Here's another audi 4.2 positive displacement kit with no loss of torque compared to stock:




I also read that the audi 4.2 is:

1. over square bore and stroke: 84.5 by 92.8 millimetres
2. compression ratio: 12.5

I understand that this impacts the mechanical efficiency of the engine and indeed creates different torque characteristics to the over square and lower compression s65.
__________________

Drives: 2010 E70 X5M Carbonschwarz
Loved and lost: 07 E92 M3 Silverstone II / 96 E36 M3 Evo Estoril Blue / 07 E84 Z4 M Coupe Interlagos Blue
Appreciate 0