GT-Facer
27-09-2007, 15:23
I'm looking at getting a megane manifold and downpipe to replace my willy manifold and dodgy custom stainless downpipe as i read that they are better than the willy ones.
But i've just read this over on retro-renault
Who told you that? The manifold does flow better until it gets to the flexi section - There things get a little "interesting". If it's tubular you're after then try to source a super-sprint unit or use the Williams manifold and keep the standard downpipe.
I used to run one on our 2.0 16v as the engine came from a Megane so naturally kept the manifold setup but you can see a real flat spot in the torque curve with this setup. Nick Hill highly recomended the F7P setup to me though I've not got the car running yet to make a comparison in the power outputs. Andrew Lowe's Clio on RSC is running around the 180bhp area on standard inlet and he uses the F7P setup... can't be that bad.
Has any else used the megane manifold and DP? Did it make any performance difference?
Don't want to mess about with changing the manifold if i would be better off with the willy one with a proper DP.
But i've just read this over on retro-renault
Who told you that? The manifold does flow better until it gets to the flexi section - There things get a little "interesting". If it's tubular you're after then try to source a super-sprint unit or use the Williams manifold and keep the standard downpipe.
I used to run one on our 2.0 16v as the engine came from a Megane so naturally kept the manifold setup but you can see a real flat spot in the torque curve with this setup. Nick Hill highly recomended the F7P setup to me though I've not got the car running yet to make a comparison in the power outputs. Andrew Lowe's Clio on RSC is running around the 180bhp area on standard inlet and he uses the F7P setup... can't be that bad.
Has any else used the megane manifold and DP? Did it make any performance difference?
Don't want to mess about with changing the manifold if i would be better off with the willy one with a proper DP.