Will This Overboost?

[AngryRB]

I trial fitted this 6boost low mount with gt3076 and have a few questions.

1) is this external wastegate pipe on the right angle or will it likely over boost ( want to run 18-20psi)

2) the compressor virtually sits ontop of the engine mount, after some shaving im estimating about 10mm clearance at most, so is that enough with engine movement etc?

3) the split on the manifold doesnt run right upto the gate, will that have much effect on the results?

thanks in advance.

Edited April 12, 2013 by AngryRBGTX

[scotty nm35]

It should be ok, better than most internal gates anyway. It would have more issues holding lower boost, 20psi will be no issue.

The compressor barely moves in relation to the engine mount.

Is it a split pulse turbo and manifold but without the splitter in the gate pipe? It shouldn't be too bad, any reason it wasn't made split though?

[AngryRB]

yeah its split manifold and turbo but theres not splitter in the gate pipe, I thought buying a 6boost all this stuff would be spot on and not need to do extra work on it.

since ive gone this far should i have a splitter welded in or have it shortened ?

[scotty nm35]

It's up to you Mark, seeing you have most of the manifold split, it seems a cop out to skimp on that little bit of pipe, but perhaps Kyle can't be bothered, or doesn't know how to split the single pipe?

It would add complexity and hence price to the manifold making it cheaper, easier and better flowing to just go with the twin gate setup I guess.

[R31 POWER]

Any more pic of the whole manifold? Just keen to see it.

[AngryRB]

So i spoke to my tuner today and showed him the manifold, apparently boost spiking is very common and i should change the angle of the gate pipe.

so im getting paranoid about what is the best thing to do here, options i can see

1) buy a second gate and hope that theres enough room to squeeze it all in being a low mount setup

2) try to exchange the manifold for a high mount plus have 2 gates

3) have the wastegate gate welded to the turbine housing

Im starting to think option 3 would could be the best because it would fit in the tight space , and also the split is divided more equally and probably a better chance of getting pressure on the gate compared to up on the manifold where theres 6 pipes converging...

is this an option?http://www.sr20-forum.com/turbo/48252-single-wastegate-twinscroll-manifold.html

Edited April 17, 2013 by AngryRBGTX

[89CAL]

This is my 6boost low mount if it helps

[AngryRB]

thats looking awesome! your manifold seems to mount the turbo higher than mine, or so it seems...

[AngryRB]

Would mounting the Gate off the exhaust housing with a Y section to split both sides of the scroll be the best way to control boost and also possibly get a better result over all with a TS? this is using one 44mm gate..

is this even possible ?

Edited April 18, 2013 by AngryRBGTX

[Bennis]

Any updates on this?

I am planning an almost identical setup. I want to run lowmount Gt3076r but using a Brae Fabrications manifold rather than 6boost.

heres the manifold in question:

http://www.braeautofab.com/apps/photos/album?albumid=12523758

Im pretty sure the gate pipe on his is in the same spot but I was thinking maybe have no gate pipe and weld the gate off the housing like this v v :

[r33_racer]

Would mounting the Gate off the exhaust housing with a Y section to split both sides of the scroll be the best way to control boost and also possibly get a better result over all with a TS? this is using one 44mm gate..

is this even possible ?

You wouldn't even notice the difference if you try to keep the split up to the gate or just weld the outlet on the housing with no split extended up it. I didn't bother with continuing the split when I went from twin gates on the manifold to one gate off the exhaust housing and there was no difference in response other then we could control boost properly.