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Japspeed manifold


nicky
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So i know the whole "get what you pay for" saying but from looking at the new RS range of exhaust manifolds from japspeed can anyone find a massive difference in those and say walton/6boost etc?

 

I was going to wait and buy a 6boost and a 60mm gate but by looks of it the new RS range is actually decent? whats your opinions?

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From sources I can find, they genuinely look decent.

 

I would however note the Watergate pipe looks quite small and is extended. The length of the pipe adds resistance as well as the diameter. Personally, if you buy it, I'd spend a bit adding a wastegate flange on the Y branch location where the twin feed joins the gate. Ensuring the bigger surface area possible therefore allowing maximum flow.

 

I also prefer a top side wastegate location. I cut and relocated mine. So no jack the car up or ramps just to get to the wastegate.

 

I've had boost spike issues on my T61 at 400hp and modified my manifold to resolve the issues successfully, now adding flow to 500hp, still without issues.

 

I think it would be fine but do advise a few modifications to improve it in those areas.

Edited by Noz (see edit history)
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1000hp is quite the number.

 

I'm an amateur on tuning. But if I had that kind of dosh, I'd just buy a top end proven manifold with twin gates.

 

It would be such a shame to get a flow issue at 950hp and your tuner to tell you its restricted somewhere.

 

Maybe see if they do a twin gate setup. Just to be safe, if you do indeed to go down the route of buying Japspeed.

 

Until tried, no one really knows. Just a bit risky trying uncommon parts.

 

I've done it for years :lol: sometimes its cost me!

Edited by Noz (see edit history)
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