Rb20 Boost Spiking Kinugawa Td06 Hybrid Performance Manifold

[ARTZ]

38-40mm for rb20

44mm-45mm for rb25..Def think it must be in the runner length, others running the same gate,turbo setup have no issues..

[DVS JEZ]

I hadthe sane issues when running a 38mm gate. Upped it to a 44 now perfect

[Tommyd32gtst]

So the waste gate pipe with 38mm? And then you put a 44 mm gate on it and all good?

[DVS JEZ]

So the waste gate pipe with 38mm? And then you put a 44 mm gate on it and all good?

No i pulled the manifold back off and welded a new 44mm ID pipe on

[Tommyd32gtst]

So I need to change to 44mm I'd pipe and 44mm gate and will be all good, and this was with a hybrid performance manifold?

[DVS JEZ]

Was with ebay stainless which is ehat hybrid have made in mild steel

[nisskid]

There's your problem then.

my hks one has the wastegate coming off at a reverse angle, haven't had it on the dyno but doesn't look like it's spiking so far, and more importantly i doubt hks would have made them if they had such a huge inherent problem.

[slippylotion]

my hks one has the wastegate coming off at a reverse angle, haven't had it on the dyno but doesn't look like it's spiking so far, and more importantly i doubt hks would have made them if they had such a huge inherent problem.

.

Yes but most of the jap kits are 50mm gates or there abouts, they dont use the smaller compact gates like the Tial mvs so they had to mount them further away from the collector.

Edited July 12, 2012 by slippylotion

[nisskid]

im using 45mm just for reference, and td06 20g on my rb20, with blitz duel solenoid ebc.

[falky929]

have u fixed this issue?? i have a hybrid manifold with a 38mm gate and a td06 20g 8cm and i have the same issue with a 7psi wastegate spring its boosting around 22 to 23psi

[GTScotT]

Hmm, hope the hybrid guys take note and see about a shorter wg tube.

the one on my 6boost is similar to Roys, with less of a point upward. the last time I got a quote from 6boost Kyle also said he would leave the wg pipe as just a stub off the manifold so u can make it application specific. Pretty sure that's a 50mm port too. Allows u to simply step it down to ur gate size

[Ke55pig]

I'm running the hyprid manifold with 44mm gate feed and gate with 38 mm screamer, t67 17 psi spring is 17.8 no spiking

[DVS JEZ]

Just get the wastegate pipe as big (diameter) as possible.

[falky929]

had my car tuned today was sweet till about 6000rpm then spiked to 24psi will have to get a bigger gate something like a 45mm and try again