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Hks 2835pros + R33 Gtst + Centreline + Creatd = Awesomeness~!

joeyjoejoejuniorshabadoo
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SLY33 Mentor

SLY33

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Sly33 have you tried pushing anymore than 16.5psi? I thought these turbos would take 18-20psi on an RB25? That said I will be happy with 280rwkw if I can get it:)

yes, in my application it would not hold anymore than that boost. which gets me to thinking that its pretty close to its potential. 280rwkw works out somewhere roughly round 450+/- hp at the fly, seeing as the turbo is rated only at 420ps, that sounds about right.

i can squeeze more boost in the midrange, but as it revs out the boost drops back to 16.5. I havent gone to lengths such as wiring shut the wastegate or anything like that, as ive heard some have done to get to the 300rwkw mark with this turbo. thats gotta be pushing it, and ive been happy with the 280rwkw. The stock honed ex manifold is purely just for experimentation rather than chasing more power!

Ill leave the car as it is until i put a 26 in it, and then sell off the whole running forged rb25/2835pro setup, including literally everything, injectors, tuned power FC etc.. anyone who wants this setup down the track keep mine in mind :woot:

joeyjoejoejuniorshabadoo Grand Master

joeyjoejoejuniorshabadoo

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Seem like a real solid turbo for the RB25DET.

Question. You guys running on MT or AT ? Cos I wonder how will the AT box that this turbo.

MT all the way baby :(

SLY33 Mentor

SLY33

Posted
Posted (edited)
weird how it wouldn't hold boost... mine is pretty happy @ 20 for a most of the range... what bc are you using?

remember that running more boost isnt necessarily good, especially if one setup is making more power with less boost.

sydneykid would tell you mine is more efficient hehe :D

that said though i think my above post relating to the turbo simply reaching its airflow potential sounds about right. I had exactly the same deal when trying to push the 2530 (using an e-boost).

now running a blitz spec-r ebc.

Edited by SLY33
LTHLRB Grand Master

LTHLRB

Posted
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had a close look at your car while i was there man.. very nice :)

rob was telling me about your car, sounds really good congratz on that!!

Now i needa get my car going agen :) 3076R .82 and try reach the 300kw mark agen :D

joeyjoejoejuniorshabadoo Grand Master

joeyjoejoejuniorshabadoo

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thanx phil!... that setup should see you @ 300 fairly easily i'd imagine...

sly33: true that i'm running a fair whak of boost to get the 265...

but comparing dyno's (to your non built 266 one) i'm getting 170rwkw by the time your's is on 130... who's more efficient now huh :P

Al Grand Master

Al

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Hey Phil car is back on the road mate :)

The run-in tune has been tweaked, but a full tune is still required once i have clocked 1000km.

VERY happy with the result!

rb30det + GT3076R = 304rwkw@16psi with instant response :D

post-1811-1215870323_thumb.jpg

post-1811-1215870338_thumb.jpg

Lithium Grand Master

Lithium

Posted
Posted
Hey Phil car is back on the road mate :)

The run-in tune has been tweaked, but a full tune is still required once i have clocked 1000km.

VERY happy with the result!

rb30det + GT3076R = 304rwkw@16psi with instant response :)

Thats really impressive already - you will be going for 20psi or so? What is your setup, internally gated or a high mount w/ external? Stock or aftermarket plenum?

Al Grand Master

Al

Posted
Posted
Thats really impressive already - you will be going for 20psi or so? What is your setup, internally gated or a high mount w/ external? Stock or aftermarket plenum?

Thanks.

Full tune will consist of 20psi, setting the adjustable inlet (modified the std gear and maintained the VVT) and exhaust gears, boost controller (as it is currently working just off the actuator), rev limiter set to 8000rpm, more ignition timing and better tune.

All items stated above are subject to gains gained. ie: if no valuable power/torque is gained from increasing boost to 20psi, i will leave it at a reasonable boost setting. Same goes with the gears, timing, and rev limit.

PM sent.

Cubes: the curve feels alot better than it looks too :D

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