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Hks High Mount Manifold Help

superjet760
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superjet760 Rising Star

superjet760

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Hey boyz i got a pair of hks high mount manifold on my gtr and the flex on the balance pipe between the manifolds keeps leaking due to the shit design if you look closely the flanges on the manifold are not as thick as the ones on the flex so when the gaskets are installed and bolts are tightened up the flanges on the manifold bend therfore make a dirty exhaust leak. Now that i have the manifolds off{what a mission} i want to cut the flanges off the manifold and replace the whole flex with something else. what im after is a flex similar to the stainless flex used on an exhaust system after the dump pipe. But i cant find anyone that makes one small enough. I would also like to weld v band flanges on to make removal easier but again i dont think you can get a v band that small. The size of the pipe is 32mm o.d.

Any help would be appreciated thanks for your help in advance

Paul

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Jmaac Proficient

Jmaac

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Posted (edited)

remachine the surfaces flat. use bigger washers to distribute the load more or weld gussets in to strengthen the flange. bolt it all together before fixing to the block (use a torque wrench). if need be elongate the holes slightly on the exhaust manifold (engine side) which will allow it to locate better and prevent any further cracking/warping caused by expansion and contraction. alternatively cut off the flanges, bolt to the block and weld a hard pipe in

Edited by Jmaac
superjet760 Rising Star

superjet760

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Posted

The reason i dont want to block it off is if one gate dosnt open properly it can still go through the other gate when the balance pipe is open.

And i thought of welding a hard pipe in but im worried it may crack and its a nightmare to pull the manifolds off if it does crack.

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