Quote:
Originally Posted by Keano
Sorry was talking about the exhaust manifold (header) and have now done this mod - was very disappointed with the gains though: 1bhp and 5lbft....
However since then Ive made a few more changes... Ive now got a a newman camshaft and custom tune done and am running 238bhp (not sure on the whp think it was just over the 200whp mark).
I was assuming that I would have got around 5-9bhp from the header (;) ) so was hoping to be over the 240bhp mark... so have decided to change the pulley to get me up closer to where I want to be 
Have now bought a new 'charger - so I can keep my jcw charger with jcw pulley in tact - and intend to go for a 16% pulley. I have the GP intercooler so temps shouldnt be too much of a problem so when the new charger and pulley gets done I will report back
Any guesses on gains?? Im hoping for in the region of 5-12bhp and 5-12lbft - my JCW charger is boosting to 1bar currently so isnt doing bad for 67k miles !! |
I have the GP IC and the 15% pulley makes my JCW run better but the difference in heat (in the summer)is more (even with the GP). So the car will detune itself and you feel a more drastic drop in performance when it gets hotter. A water injection system will counter the heat and you should get the performance back.
