F6 Turbo Upgrade On A Rb30et Gt3576r Bb? Restrictor 1mm?

[whiteRB25det]

Hi all

Long time no boost.

Time to feel the rush again. this time not just a stock rb25det with intercooler.

I have an apparent F6 Turbo im puttin on my forged RB30 today, i think its BB but not 100% sure & i want your advise.

Features:

6 bolts either side
spins around 13 seconds after blasted with air gun
looks like restrictor in top oil feed but its 3-4mm

pics attached

BTW what do you think of a 5" dump pipe i made for this performance wise ?

Cheers

[scotty nm35]

Ball bearing turbo's don't need a lot of oil flow, and the GT35 likes to burn a little oil if the feed is opened up from my experience. I would start with a 1mm restricted AN fitting for the feed and see how it goes.

A filter in the feed line is a good idea, not a little pissy one, a larger stainless mesh filter to take out any crap that may block the 1mm hole.

Pretty sure the F6 still ran a 3 inch inlet, so this would be an aftermarket GT35, do you have some pics of the dump flange side?

[R31Nismoid]

Yep, Falcon GT35 didn't have a large inlet but they did have that smaller A/R. Maybe it changed at some point?

Unless you change the front A/R and aiming for 380rwkw, bit of a poor turbo choice IMO.

Better off with a GT30 with a 1.06 AR if 300rwkw-330rwkw is the goal, even a .82 works well, comes on early and hard though so you need a decent investment in tyres/diff/suspension

[whiteRB25det]

Cheers guys i called up honeywell & gcg, they said max oil pressure of 45 psi to the turbo for this one, it has a restrictor built in around the corner from oil feed but still needs 1mm restrictor pre turbo so i bought one thursday arvo.

Yeah i was thinking of getting an inline oil filter as enzed didnt stock any when i got the restrictor. so i will order one online thanks.

This turbo came on a spag manifold with a plated vl turbo with lots of mods, forged, int, fullspool, 31 spline billet axles etc etc. and LOTS of spares all for 2.5k.
i just had to make it work IE make dump/ lines/ spacer etc it gets rego this week.

This turbo is better then no turbo so i slapped it on i know its a fair upgrade from a stock rb30 turbo that pumps a pissant 150 kw, this one pumps 310kw so im expecting laggg etc. I dont know heaps about them but ill test it. then change it if i dont like it, next is comp & tune.

what turbo would you suggest for rb30 300 kw give or take ?

what sort of power can these boost to safely 400kw ? more i guess

Turbo exit pic attached

[hypergear]

With the current turbocharger you have. Run it with a .82 rear housing, should see pretty responsive 360rwkws mark. The next size up would be a GTX3582, or just fit a GTX3582 wheel to your current CHRA.

[whiteRB25det]

Thanks Hyper Gear ill look into it

[R31Nismoid]

what turbo would you suggest for rb30 300 kw give or take ?

what sort of power can these boost to safely 400kw ? more i guess

GT30 as I said above for 300-330.

You can get 400rwkw on E85 with the current turbo you have. The XR6 GT35s always seem to be a tad shorter on the power, probably the compressor A/R at the upper end making a slight difference. Overall compressor A/R doesn't make that much difference, turbine far more important.

If you are going E85, get a GTX series. If you are staying on PULP then the GT series are the better choice IMO. GTXs only really shine at the higher boost ranges (talking 20psi++)

[whiteRB25det]

ok thanks mate, so the rear housing a bit big if im only chasing up to 300kw or else lagg

[scotty nm35]

Really depends what the use will be, it's too large for the street if you want response, but as a track turbo it would work well imo.

I much prefer a smaller turbo and leaning on it harder (for the street) but a 3L should spool the GT35 up nicely anyway.

[R31Nismoid]

Yeah it'll be ok. Not ideal... Ideal would be GT30 with a 1.06 IMO, 330rwkw doable.

.82 gets up hard and would be giggly fun, would need a big tyre budget

[whiteRB25det]

Thanks Playaz

[AngryRB]

Bring on GT30 and giggly fun..

Edited November 30, 2015 by AngryRB

[whiteRB25det]

Giggly fun i can do, also theres a wrecker close by who i get tyres off so fun times await

[r32-25t]

The other thing to consider is this the fg xr6 turbo or the turbo fitted to everything else. Cause the the fg xr6t had a smaller turbo then all the others

[iruvyouskyrine]

BA/BF had something pretty similar to 3582 and FG had 3576 iirc

[r32-25t]

Yeah and was only good for about 320kw compared to 400