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hi there all,
soon i will be building a custom exhaust for 13b b bridgeport (6 port) non turbo 88 series 4 with 51mm carby for my 1973 vw beetle using mandrel bends 304 ss 2" out of block into a y piece then into 2.5" diam connecting to a rotor flo resonator and rotor flo twin tip perf muffler!
just wandering what should the headers be lengh wise pls ?
i heard that the shorter they are the quicker the power band kicks in ?
over all,does sound like a good build exhaust for my 13 b engine as far as performance is concerned ?
I don't know the exact dimensions, but I'm sure you can look at the picture and get a general idea. I always heard a general rule of thumb; at least 2" of straight out of the exhaust ports for max flow. Here you go.
230 views and only one reply!!.whats wrong with you people???????
looks like non of know the answer either except for Fuhnortoner!!!
Maybe because you are doing a custom exhaust on a car that never had a rotary in it to begin with?
You would start with a engine/exhaust flange that mates to the engine then the rest is honestly up to you.
Since the vast majority of members own a RX and not a VW,it is not a hindrance in this case.The point is that you are doing a custom piece that few have done and therefore you won't get a quick answer.In a way at least your thread is getting viewed but they are not replying with something that may be in the long run misleading.
*Fuhnortoner knows alot of crazy stuff..and makes a mean Duck a'lorange I hear..lol!
RB sells just the flange..
Or if you search a bit on here you may be able to find guys that make or made them.
*tip..maybe you can ask one of the Turbo manifold fabricators (Glease or Turblown come to mind) if they can either give you tips or sell you a flange to start you off?
