Mud-club
Chat & Social => The Bar - General Chat => Topic started by: mark.yellow.series.3 on April 17, 2006, 11:59:19
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iam nearly ready for making an exhaust for the swb V8,
some people tell me i will need to join both exhaust headers together( in a 'y' piece) to balance the engine, but i have seen american cars where there is an exhaust comes out of each side of the car ( thats what i want to do).
and ive also seen on telly a V8 with 8 seperate pipes coming off the engine.
can any one shed any light on the matter.
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The Usual method for a V8 (and Audi 1.8T) is to have to seperate outlets, and I presume it'll work with Land Rovers, if anything they'd be more balanced.
I think it would work either way, but I know I'd agree with you and go for a pair of them.
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Er, no. some V8s have a different firing order that allows separate headers, but the rover does not, you need to join the 2 sides. Even systems that do have handed exhaust will often have a balancer pipe between the 2 sides, or they run into 1 and separate further back, this is what you need to do otherwise it will chug badly and the different cylinders will run, well, differently.
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the rover V8 requires the Y pipe system for cross compression, it was designed to have one and will run like a bag of spanners without...
of course you could fit two I suppose :?
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cheers guys i thought it would need a y pipe. might just have one side exit exhaust.
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The Rover SD1 that I had years ago had for each manifold :- 4 into 2, 2 into 1 and then *both* outlet manifilds into 1.
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Ran my (tuned) v8 series with each side not connected together. Ran like a nail under 3000 rpm.
Ran fine flat out, but the 'Y' piece helps evacuate the other cylinders as each exhaust pulse passes thru it.
Keep the 'Y' piece, or run a connecting pipe between both branches.
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thanks for the advise, any suggestions on the bore of the connecting pipe, or should it just be same diameter as rest of the exhaust.