Looking for an offside manifold..

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Camo
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Looking for an offside manifold..

Post by Camo »

I have some issues with the offside exhaust manifold, the ones that came with the engine fits fine on the nearside but not the offside, need some advice as to where to look other than on ebay for one that may work !
and cheaply really...
Image
Image
Not much room but has to come down at the back of the engine ideally.
The distance between the head and the side bulkhead is 9cm, to clear the steering column it has to come out 3-4cm from the head but clears it after 13cm. the drop to past the chassis rails if 35cm...
pictures show it best :)

Stu


mgbv8
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Post by mgbv8 »

Looks like you might have to buy and modify a tubular manifold like a block hugger.
If its the steering shaft that you need to clear then you could buy a set of RV exhaust flanges and use these with extra gaskets as spacers to move the manifold out a bit.

I have to do this on the nearside of my MGB to clear a chassis rail and the drivers side of Jasons Escort to clear the oil pressure switch.
Perry Stephenson
MGB GT + Rover V8
9.62 @ 137.37mph
Now looking for 8 seconds with a SBC engine
http://www.youtube.com/watch?v=nVscbPHgue0&list=UUqIlXfSAoiZ--GyG4tfRrjw

https://www.youtube.com/watch?v=eg3avnsNKrc&index=2&list=FLqIlXfSAoiZ--GyG4tfRrjw
Camo
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Post by Camo »

The good news is I have finally got a pair of manifolds that will fit with some minor bulkhead chopping...
My problem may not be a problem based on the replies to this...
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The left side is taken from a Stag / RV8 the other is a Landrover Discovery.

The primaries are all the same diameter its just the outlet size that differ so I was going to cut the small one off higher up so it then matched the larger bore size and then have a same size bore pipe welded on.. makes sense right ?
Image
That way all the pipes are the same size and should cause no imbalance in flow between the heads... it will be a road going car, no fancy engine stuff just a standard 3.5 V8..
Any thoughts ?

Stu
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ChrisJC
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Post by ChrisJC »

I can't see any problems doing that - it's exactly what I'd do.

The exhaust on an RV8 can't be properly tuned anyway because it's a dual-plane crankshaft configuration, so 4-cylinder tuning ideas just go out of the window.

Chris.
--
Series IIA 4.6 V8
R/R P38 4.6 V8
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Camo
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Post by Camo »

Thanks Chris, just needed someone to say so :)
and yay, it fits with some minor mods:
Image

Very pleased.

Stu
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