ORIGINAL: Ehab
BVM does not have a bypass for the 3.5" turbine. He has a P60, P70 and a P80 bypass for the Bandit. I know I can use the P70 bypass for my turbine but it will not be optimized. I was told by BVM himself a few years ago that the bypass/pipe has a huge effect on his jet's performance, so I am assuming he did his homework on his bandit's bypasses...I also wanted to know the technical details of the bypass/turbine size!!!!
Ehab,
I have two bypass's in my workshop at the moment, the one for the P60/70 which I think are the same and one for the Ram 500 which was of course a 3.5 inch turbine.Both bypass's are produced by BVM. I have just measured the I.D of both. The P60/70 one is 4.5 inch and the Ram 500 one is only 1/16 less. If it was ultra critical then would they really use a common bypass for the P60 and P70? If you really want to get the right set-up then get BVM to supply you with a Ram 500 bypass but you will need a extended tail pipe because the p60/70 bypass is longer to cater for the 70.The Wren tail pipe is certainly better than the stock one supplied but its not easy to get it to fit in the BVM outer easy.
If you go with the p60/70 bypass make sure you ask for the p70 straps, I asked for the one suitable for the wren and they sent the p60 ones which are too short.
Jason