Jump to content
SAU Community

Recommended Posts

How far from Newcastle are you? There is definitely no restriction with the 4 inch. Just need to return the bov's back into it and get a good quality filter.

I'm in Canley Vale, solid 2 hr drive away.

don't need the bov return or breather :)

I've got a 3" intake going to my 4" turbo, doesn't boogie well

Got some results, here is a dyno graph comparing the turbo that I took off. The red line was with stock wheels, the Green line with 19 inch wheels and 305 tyres.not sure if that would make a difference.

The actuator holds around 27 psi as shown, I wasn't expecting that so I need to get a lighter one to hook the boost controller back up.

It seems like the stock rb25 manifold is a restriction now so the next job is to make a decent one to see if we can get over the 400 hump.

Also the tune hasn't been adjusted for the different turbo as there wasn't enough time and I was only worried about it being safe to drive.

It drives great though. Can't wait to see what difference a good manifold will make.

I'm happy too that the internal waste gate works properly.

Looking forward to feedback thanks.

post-82728-0-87498400-1445981665_thumb.jpg

  • Like 2

Very similar one with different housings and the next size up turbine. Still not a bad result from a $50 turbo.

Not the last one wouldn't make any more power with more boost so I don't know if this one would make the same on less boost than what it's running. Currently.

  • Like 1

You should have gone external gate from the start, I have made 430+ on the stock exhaust manifold a few times now externally gated off the housing.

You could always run twin gates seeing that internal one won't open anyway. :)

I'm in Canley Vale, solid 2 hr drive away.

don't need the bov return or breather :)

I've got a 3" intake going to my 4" turbo, doesn't boogie well

You talking about my intake Johnny? Greg made 400kw through one in his auto, safe to say it will flow 450 odd. It's not like your turbo has a 4 inch compressor. :P

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • The wideband reading is meaningless if it's not running. Why are you using shitty old sidefeeds on any engine, let alone a Neo? What manifold and fuel rail are you using to achieve that? Beyond that, can't help you with AEM stuff as I've never been their ECU/CAS combo.
    • Manual boost controllers (where a little of the boost was bled off) were quite common back in the day, because they were cheap and easy. Generally they had a manual adjustment screw rather than being fixed like yours. Down side is they always bleed boost, not just when you want them to so an electronic boost controller that uses a solenoid will have less lag.
    • Hello , im new here and i have A31 home build  RB25det neo stock eng / turbo  aem ems 2 blue connector  aem 3.5 map aem cas disk aem wideband connected to ecu  355 lph pump 550 nismo yellow injectors side feed aftermarket regulator  and won’t start with base aem tuner basic tune eventually flipped cas 180 degree so it triggers on correct stroke not in exhaust cycle  Now it won’t start Wideband reads 10 and 11 at lowest fuel setting  and will share calibrations soon for aem tuner i think something is wrong in aem tuner    please if you have any information, am very grateful         
    • Legend. I ended up finding the facebook account of the owner of the first car i sent but sadly he deactivated the account. I think you’re right in saying it’s some sort of well done custom job. Really appreciate your help anyways.
    • Totally equivalent. Stock often goes from the comp cover because that's where the actuator is also installed and the factory needs 2" of hose to make the connection - and it comes as a pre-assembled unit. They totally have a boost reference from somewhere between the turbo and the throttle(s). Oh, jeez. Just do it in M12 then. We don't actually care that much. I would expect any such AN converter fitting to rely on an o-ring or some other seal onto a flat surface under the flange of the hex**, because bolt threads are no intended to provide a pressure seal. unlike..... pipe threads. **which also requires a suitably flat and smooth surface on the turbo's boss to provide the seal.
×
×
  • Create New...