Engine swap and bigger turbo upgrade project

No drama. Will e-mail him.

 

Unfortunately setting up the cams is just a touch more techo than setting the marks the same on all the cam gears & lining up the primary marks to the marks on the backing plates.

You are going to need a degree wheel, a DTI, the appropriate adjusting tools, a power bar & 27mm socket (to turn the crank over), remove the plenum & cam covers & a good old fashioned read up on how to set up cam shafts.

It is very likely the builders of the engine had the cams all set in the first place as normally there is a variance of about 3 degrees between one bank & the other on VG30DEs - from what I have seen, depends on state of heads & thickness of head gaskets & a few other variables

 

mate keep the dumps . there probably like that for a reason dude !!! there is bugger all clearance between the exhaust wheel and the wastegate flaps

 

That would negate the need for a split dump. I would get a divider. IMO it needs it.

 

Simmo, You are correct. Got the response today from Greg...

We removed the seperator on the 3071 dumps for street cars and filled the holes for a reason. The 3071 moves too much air
And will boost creap with the seperators under 22 psi.
I have 20 psi springs in my car only run race fuel and did not know when I first built the kit.
With a customers car we found with 15 lb springs we found it boost creeped at higher rpm to 22 psi with the seperators. We removed the seperators and could get the boost down to 15 psi.
We also dyno tested at 22 psi with and without the seperators and it made the exact same power curve.
We are now sending out all 3071 dumps without seperators for safety because of boost creep.
I have removed the seperators from my own car as well so I can
Run lower octane on the street.

 

Good work.

Thought about those BDE engine mounts? No need to hack away at the stock ones. She fitting up all nice? Curious about the RH dump and the steering shaft aswell.

GL

 

Yes it is trial and error setup which takes an hour each side if you have the right tools which I didn't have. Glad I asked ezzupturbo to help me out. RH dump will have some drama too but not scared anymore.

 

Based on that I would have to say the tube for the wastegate needs to be larger then?
Seems as though there is to much gas flow for the small tube & so it spills over in to the turbine outlet tube. Interesting.

 

so whats uour target power figure for the build kabir.....some very heavy duty components going in to all this....trying to upset simmo lol?

 

hahahhaha pfff only a 3.1 mate !!!! the real big guns have 3.2's

 

No way. I have no plan to upset simmo, just want to make myself happy.Only time will tell how much power I can get out.

 

Stop reminding me that it is a 3.1 and fix my intake cam gear allignment. Hope you don't have plan to stay at mine during this long weekend.

 

thats shit why have split dumps then. why dont i just make you single 3.5" dumps or even 3 inch dumps. its going to create a heap of turbulence when the waste gate opens.

 

No, they don't move enough through the wastegate at low boost That's different

But the Skyline guys have the same issues with GT30/35 turbo's with internal gates. A lot of them go external gates to keep the creep in check.

 

only 3.2???

 

Well

me for one rob! Bell mouth dumps were my first choice, its pity the cost restricted me from getting them.

 

thats kind of wierd. between the turbo wall (fan/wastgate area) and the dump wall you would have like a 10mm or so gap... with no seperator inbetween the two sides i can only imagine how much turbulance that would create.... wouldnt you be better off going with bellmouths if this is the case

split dumps are made for a purpose. to complety seperate the chambers from each other. like completly. although many still crepe wastegate into the exhaust side but the theory is that they completly are suppose to be seperate..... this just defiets the purpose of a split dump now...

 

doesnt sound right to me either..

 

This is not a bellmouth VS split discussion. This is a gap vs no gap on a split discussion.

The turbulence is negligible. It has already been tested back to back on the dyno with zero change resulted. If the dyno shows a zero change.. I think thats pretty conclusive about this mega considerable turbulence issue people have drempt up.

Granted opnions are usually totally correct and valid... but back to back dynos testing the effect is usually very flawed and not worthy of assessment.... :bash:

Now it has already been confirmed that the gap only changes opnions but has no factual change in power, how about we let Kabir continue his nice thread.