10-05-2012, 05:54 PM
Having read your threads and to reitirate i have no issues with yourself and love where you are going with your estate, ie its gorgeous.
I understand that you did try a lot of things to improve the engine, but i feel that in standard guise its a really good engine even by todays standards. There are most certainly compromises and the cambelt design should have been changed soon after manufactuer. The interference is to produce the power that it does from a non-variable valve timing engine, long inlet runners help provide torque in the lower rev range, this combined with the very long inlet system. Then the 4-1 equal length manifold there to allow the power higher up the rev range. I really do stand by my opinion that it is a great standard engine, especially given the limits of technology when it was made!
To add, and although it would have been very silly to given the cost, you never remapped your engine after the modifications you made, or you could well have seen gains. You didnt try a 4-2-1 manifold, experiment with ITBs, or even change the cams which with PT81s has shown to give an increase in both power and torque (around 190hpish). Given its not amazing by todays turbocharged or variable intake system designs but gains are there to be had, and unfortunatly they cost a lot! But in comparison to the K20, things are seriously cheap!
Again we must remember that the XUD9 was 93bhp from factory (should have been 120 but hey ho, Peugeot needed people to buy XSIs etc), but with a few choice mods can most certainly be quicker than a 6 at a seriously reduced cost. But to finish, i really cant understand why people think the RS engine is shit?
I understand that you did try a lot of things to improve the engine, but i feel that in standard guise its a really good engine even by todays standards. There are most certainly compromises and the cambelt design should have been changed soon after manufactuer. The interference is to produce the power that it does from a non-variable valve timing engine, long inlet runners help provide torque in the lower rev range, this combined with the very long inlet system. Then the 4-1 equal length manifold there to allow the power higher up the rev range. I really do stand by my opinion that it is a great standard engine, especially given the limits of technology when it was made!
To add, and although it would have been very silly to given the cost, you never remapped your engine after the modifications you made, or you could well have seen gains. You didnt try a 4-2-1 manifold, experiment with ITBs, or even change the cams which with PT81s has shown to give an increase in both power and torque (around 190hpish). Given its not amazing by todays turbocharged or variable intake system designs but gains are there to be had, and unfortunatly they cost a lot! But in comparison to the K20, things are seriously cheap!
Again we must remember that the XUD9 was 93bhp from factory (should have been 120 but hey ho, Peugeot needed people to buy XSIs etc), but with a few choice mods can most certainly be quicker than a 6 at a seriously reduced cost. But to finish, i really cant understand why people think the RS engine is shit?
![[Image: Atterz.jpg]](http://i683.photobucket.com/albums/vv195/Atterz11/Atterz.jpg)