Rb25 Turbo Upgrade, All Dyno Results

[BurnzGTT]

S1 c34 stagea

Rb25det s2

Hypergear atr45sat iwg

Apexi power fc with boost kit

Splitfire coil packs

Z32 afm

Xspurt 1000cc injectors

600x300x76 front mount intercooler

Bosch 023 fuel pump

3 inch exhaust with mid muffler no cat with bellmouth dump

265rwkw bp98 at 20psi

Has some form of restriction limiting timing up top

I had a similar issue with the ATR45SAT with timing being limited up top. I made 289rwkw on 98, on my 25NEO. Told it was most likely exhaust, i have 3" bell mouth dump to 3" straight pipe. What brand dump/front are you running?

[hypergear]

Please add above tech Chitchat in my thread I will reference the type of exhaust fabrications and cooler side of things to get the most out of it. And please keep this thread dyno sheets only. cheers.

[slowpoke2006]

rb25det s1

stock turbo

550cc injectors

z32 Maf

Nistune with rb20 computer

Split-fire coil packs

3" cat-back exhaust stock dump and down pipe and cat

93 pump gas

Edited June 6, 2016 by slowpoke2006

[684NGR33]

My s1 rb25 33-

Greedy copy plenum

Ls coil packs with 8.8mm leads

BCPR7ES plugs gapped to .6

Id1000'sId1000's and bigger rail

sard fuel reg

Xf throttle body

S60 master power turbo

38mm turbosmart external gate

Stainless manifold

3" dumo and exhaust with high flow cat and hot dog muffler

Walbro 460

E85

Shitty compression motor 115-125.

Made 398.5rwhp on 20psi tunnwd by Horsepower Solutions.

[Finken]

Hello from Norway.

My car is a 1987 Nissan Laurel C32, probably familiar to some of you. Basically Its the sister model of the R31 Skyline.

The engine setup is as follows:

Stock internal RB25DET from a ECR33. Tomei cam ex cam gear adjusted 2 deg retarted.

Vipec Plug-in ECU,

GT3076R old type 7 blade 52 trim with AR 1.06 twin scroll T3 housing.

Homemade twinscroll manifold with single 50mm Synchronic wastegate. Divider goes all the way to the valve. 

Stock intake manifold for better low end torque than the junk Freddy manifold i had previously.

R33 GTR intercooler.

ID1000 injectors

472hp/347kw, 570Nm @ hubs in Dynapack, boost 1,45 bar. 99 RON pump fuel

Edited July 22, 2016 by Finken

[Nishant]

Hello from NZ!

Running a stock S2 RB25DET in my r32 coupe with the following mods:

- Greddy knockoff plenum with a 90mm TB
- top feed fuel rail + 1000cc xspurt injectors
- Hypergear ATR43SS2 internally gated turbo bolted to the stock manifold
- 600x300x80 bar and plate intercooler + custom 3" piping
- Link G4 plugin ecu
- Splitfire coilpacks
- custom dump/down pipe and 3" exhaust 

[dc2low]

r33gtst Rb25det

blitz return flow

walbro255

nismo 740cc

hypergear op6 highflow 

38mm tial external wastegate 

power fc

splitfire coilpacks

factory airbox

z32 afm

custom intake pipe by Jem

3" dump pipe, straight pipe to a fujitsubo muffler

Car feels like a nugget down low, so much lag but goes well when boost comes on.

Does the dyno graph look normal to you guys? 

 

 

 

[hypergear]

get a proper PWR 600x300x89mm fmic, block bov and use a pod filter. will increase power and response by heaps.

[munro31]

Rb25 

Forged / balanced 8.5:1 Comp

Lightly ported head stock valves with kelford 270° 9.35mm lift cams / adjustable gears kelford valve springs. no vct.

6boost t3 50mm gate 3.5 inch dump / exhaust. Mta750 turbo 62mm billet wheel t3 .82 housing.

Cpc plenum 1000cc inj e85

Splitfire coils haltech ps2000 cam and crank triggers custom loom.

25 psi 

Edited August 1, 2016 by munro31

[Checkbuzz]

On 7/31/2016 at 0:16 AM, hypergear said:

get a proper PWR 600x300x89mm fmic, block bov and use a pod filter. will increase power and response by heaps.

I'd start with the cheaper options mentioned here first... my Blitz LS return flow provides 315+rwkw with better response than most RBs running similar power levels (i.e. full boost by 3300rpm) whilst providing ample cooling for hard track work.

[R31 drift pig]

Rebuilt RB25 motor - CP Pistons/Spool Rods/ARP Hardware/Greddy Metal Head Gasket/Camtech 264/268 9mm cams, HKS cam gear, Performance Springs valve springs
Trust TD06SL2-20G 10cm turbo/GReddy High-mount Stainless Manifold/Tial MV44 Wastegate
Plazmaman FMIC And piping
1 piece dump/front/3 inch straight pipe, Jun BL Blast pipe
Pierberg lift pump, Surge Tank, Bosch 044, ID1000cc Injectors, Aeroflow Fuel Rail, Turbosmart Regulator, E85 Fuel
Haltech PS2000 ECU, Haltech Wideband

 

300kw-20psi/550nm torque.

 

Thought it would have made a bit more, but turbo seems to be out of puff. Thought about going up to say a 25G 10cm turbo, but the midrange and response is pretty awesome, so I don't really want to change much simply for a bigger number on paper.

[hypergear]

3 hours ago, R31 drift pig said:

Thought it would have made a bit more, but turbo seems to be out of puff. Thought about going up to say a 25G 10cm turbo, but the midrange and response is pretty awesome, so I don't really want to change much simply for a bigger number on paper.

All you need is to upgrade its compressor. Below is using one of our upgraded TD06-20G in 12cm using ATR43G3SAT compressor before and after upgrade.

R32 GTST RB30det Pump 98 fuel

ID 1000CC injectors

PFC + FMIC + 3 inches exhaust

High mount manifold + 44mm external gate

 

 

 

[R31 drift pig]

Will be something I look at later on, Im just happy to have it back and running after 2 years building it haha.

 

Do you have any sheets for that that turbo on standard capacity 25?

 

What would a core changeout be worth?

Edited August 14, 2016 by R31 drift pig

[hypergear]

R34 GTT RB25DET NEO unopened engine.

- Adaptronic� ECU
- 1000CC ID injectors
- Factory cams, cams gears, and all manifolds.
- HyperGear ATR45SAT (Pro-B 150816) Ceramic Ball bearing Internal gated RB25 bolton Turbocharger
- JJR 3 inches turbo back exhaust, front pipe has 2inches Tee. 
- Walbro 470L/H Fuel pump
- 4 inches induction pipe
- Split fire coil packs
- PWR 600x300x81mm intercooler
-Tuned by Chequered Tuning Melbourne (Highly recommended)

 

Peek of 331rwkws and average of 325rwkws @ 22psi. 20psi @ 3650RPM. P98 fuel

 

 

 

 

 

[admS15]

That looks pretty awesome. Excellent response vs power.

[hypergear]

C34 Stagea with RB25DET NEO unopened engine.

- Nistune ECU
- 1000CC ID injectors
- Factory cams, cams gears, and all manifolds.
- HyperGear older version ATR45SAT (Rv-0 130215 discontinued) Bush bearing, RB25 bolton externally gated through exhaust manifold.
- 3 inches turbo back exhaust. 
- Walbro 470L/H Fuel pump
- 3 inches induction pipe
- Split fire coil packs
- PWR 600x300x81mm intercooler
-Tuned by Chequered Tuning Melbourne 

Car made 400rwkws @ 22psi E85 fuel.

[DekA]

On 4/23/2016 at 7:07 PM, DekA said:

Changed FMIC to Plazmaman pro seriesApexi pod filter

Walbro 450lpr fuel pump

Tomei Type L FPR

Nistune upgraded with Flex

273rwkw on 98

309rwkw on E85
 

 

Had a Turbosmart 40mm external wastegate welded to the exhaust housing



Comparison of internally gated to externally gated



Also changed rear muffler to a Dynomax VT 3" in/out

Final E85 tune with high/low boost:

 

[dc2low]

On 30/07/2016 at 10:53 PM, dc2low said:

r33gtst Rb25det

blitz return flow

walbro255

nismo 740cc

hypergear op6 highflow 

38mm tial external wastegate 

power fc

splitfire coilpacks

factory airbox

z32 afm

custom intake pipe by Jem

3" dump pipe, straight pipe to a fujitsubo muffler

Car feels like a nugget down low, so much lag but goes well when boost comes on.

Does the dyno graph look normal to you guys? 

 

 

 

Got a retune done on the car same setup. Turbo is still laggy until nearly 4k rpm. Made some power mid and high range.

 

 

Edited September 13, 2016 by dc2low
New dyno plot

[Kinkstaah]

Updated my result from awhile back with:

1x 3in to 3.5in exhaust, with gate plumbed back now as opposing to going to Atmo, through two mufflers.
Walbro 460 pump, with the 120psi relief valve over the 70psi one. Fuel tank lid actually sealed now too.

Different stall converter to fit the situation, which results in more slip. Added a fair amount of restrictions to the system but got a better result because of other messing around. To avoid killing the dyno this pull was WOT at 3000 RPM as opposed to stalling the converter up. So it's actually more responsive than this shows, but the dyno didn't like it.

Still have a Blitz return FMIC, so that really isn't a restriction people.

413rwkw at.. 24-25ish psi, with about 10% slip in the converter up top.
Couldn't go higher due to Splitfires starting to really call it a day at that power level, which would be higher if it had a clutch, so for anyone reading you can probably do 460kw with ~25psi of boost before they start to miss, at least in my application.

It's pretty torquey.

GTX3582R on standard manifold, Picture of engine bay attached for dat boringness.

[Smally514]

RB25DET

Stock: ECU, injectors and rods. Intake and intercooler.

Aftermarket:
264mm cams.
Forged Pistons
Fuel pump(not sure of specs upgrade was done by previous owner)
Custom 3"dum pipe to 2.5" de-cat straight to 3.5" cannon.
Upgraded turbo (standard manifold) genuine GCG Garrett GTX 29/30 billet wheel. running wastegate pressure 12 psi.