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Rb25 Turbo Upgrade, All Dyno Results


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2 hours ago, WR33KD said:

And lot of people fudge dyno readings so they get a higher read out

8809050C-5C0A-45C2-9598-F3F1793FA71F.png

Graph in 2nd pic shows more power as it is "engine power" the change isn't due to changing the torque settings if that is what you are worried about

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16 hours ago, Ben C34 said:

Graph in 2nd pic shows more power as it is "engine power" the change isn't due to changing the torque settings if that is what you are worried about

Yep, and to add to that - the first graph with the huge torque figures is because the power and torque figures are as read from the hubs/hub speed.   

When you put a Dynapack dyno into "flywheel" mode it divides the measured torque by the final drive ratio loaded in, which brings it down to something more representative of what the engine is making after drivetrain loss (at least when TCF is set at 1.0, so no torque scaling).    An additional feature is to "correct for flywheel power" which is really nonsense which boils down to multiplying the torque by whatever the TCF is, and naturally power is boosted as a result of this.  

My preferred use of a Dynapack is to have it in "flywheel power" mode so that you can get a realistic gauge of the torque the engine is generating, but leave TCF to 1.0 so you are just seeing the SAE corrected figures the dyno is generating.

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  • 4 weeks later...

Hi Everyone,

I originally posted this in the Precision turbo section.

S1 RB25

Kelford 270 cams

supertech valve train

Precision 6466 @ 40 lbs single scroll .81AR

CP pistion stock bore and compression

Manley rods

Balanced and blue printed block

Otaku manifold

ID2000 on E85

Loca Dyno - 873.jpg

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R34 GTT

Rb25det NEO Stock Cams
Nitto Pistons and Rods. 9:1 CPR
HyperGear ATR43SS-3 Turbocharger
ID 1500cc injectors
Walbro 525L fuel pump
Power FC + Z32 AFM
Greedy Profect B EBC
600x300x81mm PWR Cooler kit
3inches turbo back exhaust
4inches intake pipe with Pod
Split fire coil packs
Twin pulse manifold and twin 40mm gate. 
Car made 474rwkws @ 28psi, E85 fuel. With 265rwkws @ 4000RPM, Fuel system currently maxed.

 

enginebay.jpg

power.jpg

boost.jpg

 

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  • 1 month later...
On 4/27/2014 at 6:54 PM, Badgaz said:

-Apexi Power FC

-1.2bar boost via blitz sbc
-PULP 98
-850cc injectors (remanufactured)

-GTR Fuel pump

-High flowed stock turbo (Steel t3 turbine, largest front wheel could fit)

-3" exhaust from down pipe back (3" coby resonator >3"RPS muffler)

229rwkw @ 16psi

sorry about the graph, but you get the idea.

post-95424-0-78786600-1398582393_thumb.jpg

more progression now, 

PowerFC

20psi boost through innovate scg-1

Hypergear ATR43ss2 externally gated 40mm turbosmart hypergate

replaced entire exhaust with SS AdrenalinR muffler+reso

ditched the blitz return flow and went with a 600x300x91mm intercooler

arp head studs and replacement stock HG.

291kw

291kw.bmp

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My old setup got transferred to my partners car almost exactly as it was but tweaked slightly and made much nicer than mine was.

rb25 neo, unknown km’s

Tomei poncams 260 type B, HKS 56T 2835 Pro S .87ar, HPI turbo manifold with divider welded in at the flange and refaced, Hks special dump with 3 1/2 inch system 100cell cat and box muffler, Rb26 itb’s on rb25 s1 Lower runner adapter, nismo 740cc side feeds, Turbosmart fpr, eboost2, new apexi power fc, walbro 460 in tank, ARD 150amp alternator, splitfires, hks exhaust cam gear, Apexi pod z32 afm, ARC r32 gtr intercooler, ARC r32 gtr grille oil cooler, new water pump, new oem balancer, hks and cometic gaskets throughout, Turbosmart Internal gate actuator with 14psi springs (I ran 21.5psi springs when on my s1 RB25), Blitz radiator, Grex oil filter relocation kit.

I ran this setup on My s1 with e85 with much more aggressive tune and higher boost making 470whp 25psi.

Makes a fair bit less as expected but performance is extremely smooth and will get e85 tune in coming months,

BP98 fuel, High boost 18psi

red line was removed from tune as it was unnecessary and made no real gains worth keeping it.

 

94CBE0F3-9FF4-4F5E-BE17-8C4CA0F54F88.jpeg

Edited by LaurelPWR
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  • 2 weeks later...

R34 GTT

Rb25det NEO Stock Cams
Nitto Pistons and Rods. 9:1 CPR
HyperGear ATR45SS-1 Turbocharger
ID 1500cc injectors
Twin Walbro 525L fuel pump
Adaptronic Plugin ECU
Greedy Profect B EBC
600x300x81mm PWR Cooler kit
3inches turbo back exhaust
4inches intake pipe with Pod
Split fire coil packs
Twin pulse manifold and twin 40mm gate. 
Car made 523rwkws @ 35psi, E85 fuel. With 250rwkws @ 4000RPM.

 

power.jpg

 

boost.jpg

 

Edited by hypergear
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  • 1 month later...
On 22/05/2016 at 11:15 PM, Dose Pipe Sutututu said:

R33 Series 2 GTS-t with over 300000km (Edward Lee's Special Edition, dash says 157xxx)

  • Stock Motor with (most likely) 350000km, based on wear and tear of interior, bushing etc.
  • Stock cams
  • Stock valve springs
  • Stock valve seals
  • Stock head
  • Stock head gasket
  • Stock bottom end
  • Stock intake manifold
  • Stock exhaust manifold with havoc gate modification
  • ARP non 2000 studs, torqued to 115nm
  • Plazmaman Swept back piping kit
  • HDi eChina FMIC
  • Mick_O 4" le secks dose pipe :)
  • 3.5" Turbo back exhaust by Impossible Fabrications (3.5" mid muffler, 3.5" resonator, 3.25" HKS rear muffler)
  • 5" body venom cat with 3.5" inlet/outlet
  • 45mm Turbosmart Hypergate EWG, plumbed back after cat hehe
  • 875cc Siemen DEKA V Half Height Injectors (8 hole)
  • Walbro 460L
  • Turbosmart FPR1200
  • Splitfire Coil Packs
  • Adaptronic 440 Select Plugin
  • Hypergear SS2 with Ceramic Ball Bearing CHRA (circa 2016)

372kW @ 1.75bar, 1.5bar by 4100rpm

Self Tuned

post-22311-0-16951700-1463922770_thumb.jpg

post-22311-0-54027400-1463922888_thumb.jpg

Time for an update to the shit box, this time with bigger and badder dose pipe for you dose bitches. Nearly 3 years in the making too :D

407kW @ 2bar -> 1.8bar  on E85. Mainline AWD dyno, with 16kph/sec ramp rate.

Mods:

  • Garrett GTX3576R Gen 2
  • Garrett T3 1.01 divided rear housing
  • Turbosmart Gen V 50mm
  • Sinco T3 twinscroll, single gate manifold (pulses split to the gate seat)
  • 3.5" Turbo back with 5" body Venom Cat, 2x Mufflers
  • Generic built RB25DET NEO motor
  • Spool billet oil pump gears
  • Tomei 260/9.15 Poncams
  • 80lb Valve Springs & Ti Retainers by Performance Springs
  • HDi Hybrid 76mm eBay FMIC (holding back the power)

With high IATs air density is dropping, thus boost is bleeding off as well with small DC corrections on the boost DC table. I did order a Plazmaman Pro cooler but it didn't arrive on time. IAT peaked at 57 degrees C in a dyno room with an ambient temp of 19 degrees C. From the data, reducing the IAT will improve the boost control up top, get more air into the motor and will yield the results I'm after.

Once the FMIC comes, I'll be back for round 2.

Special Thanks to:

  • Alex at Birrong Automotive for allowing me to use his dyno
  • Adam at Weldspeed for the fabrication work
  • Yez Racing for supplying most of the parts

Data, etc. available in my build thread here:

20190621_074114.thumb.jpg.173b0fb1b627f56e1d1b82bcec0b7476.jpg

20200608_120952.thumb.jpg.938699416dc76a396fe58b7c8ce97ad3.jpg

 

Sorry for the lack of derived RPM, I forgot to set it up, in the Analyse screen it shows you true RPM vs. Power vs. Torque.

image.png.874db565455ac977a5b5f0b34c0ed389.png

Log during run:

image.thumb.png.962174e65b8bc1ee02315255d66ca6dc.png

IAT post run:

image.thumb.png.8ab85e9681afe1c83347672bd05e70d1.png

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  • 2 weeks later...

R34 GTT

Rb25det NEO Stock Cams
Nitto Pistons and Rods. 9:1 CPR
HyperGear ATR45SS-2 Turbocharger
ID 1500cc injectors
Twin Walbro 525L fuel pump
Adaptronic Plugin ECU
Greedy Profect B EBC
600x300x81mm PWR Cooler kit
3inches turbo back exhaust
4inches intake pipe with Pod
Split fire coil packs
Twin pulse manifold and twin 40mm gate. 
Car made 537rwkws @ 36psi, E85 fuel. With 225rwkws @ 4000RPM. Cams are maxed

https://hypergearturbos.com/images/dynosheets/atr45/atr45ss2537rwkw/power.jpg

https://hypergearturbos.com/images/dynosheets/atr45/atr45ss2537rwkw/boost.jpg

 

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  • 5 weeks later...

Rb25det NEO Stock Cams
Nitto Pistons and Rods. 9:1 CPR
HyperGear ATR43SS-2 internally gated Turbocharger
ID 1500cc injectors
Twin Walbro 525L fuel pump
Adaptronic Plugin ECU
Greedy Profect B EBC
600x300x81mm PWR Cooler kit
3inches turbo back exhaust
4inches intake pipe with Pod
Split fire coil packs

 

power.jpg

 

boost.jpg

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  • 2 weeks later...

Rb25det NEO Stock Cams
Nitto Pistons and Rods. 9:1 CPR
HyperGear ATR45SAT internally gated Rb bolton version Run both internal and externally gated
ID 1500cc injectors
Twin Walbro 525L fuel pump
Adaptronic Plugin ECU
Greedy Profect B EBC
600x300x81mm PWR Cooler kit
3inches turbo back exhaust
4inches intake pipe with Pod
Split fire coil packs

Final result of 362rwkws @ 20psi Internally gated  and 427rwkws @ 25psi Externally gated

 

powerall.jpg

boostall.jpg

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  • 2 weeks later...

Rb25det NEO Stock Cams
Nitto Pistons and Rods. 9:1 CPR
HyperGear ATR45SS-2 prototype Turbocharger
ID 1500cc injectors
Twin Walbro 525L fuel pump
Adaptronic Plugin ECU
Greedy Profect B EBC
600x300x81mm PWR Cooler kit
3inches turbo back exhaust
4inches intake pipe with Pod
Split fire coil packs
Twin pulse manifold and twin 40mm gate. 
Car made 570rwkws @ 40psi, E85 fuel. With 250rwkws @ 4000RPM

 

 

power.jpg

boost.jpg

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  • 2 weeks later...

Rb25det NEO Stock Cams
New Spark Plugs (NGK BKR7E)
APEXi Pod Filter
Nistune
R35 GTR Injectors
Walbro 255LPH Fuel Pump
GReddy Profec B-Spec II EBC
Return flow FMIC (unsure of brand, I didn't do this one)
3" Dump pipe + High flow catalytic converter
3" Fujitsubo Giken FGK Exhaust

Koyorad Radiator
Rebuilt turbo, Garret 2871R core in stock turbo housing.

 

Boost tapered off towards the end with diminishing returns at 17 PSI only getting 265kw when 12-13 PSI was getting peak 256kw. Main difference was in the midrange. I just run it on low boost all the time as I can't really tell much of a difference.

265Kw_Info_Removed.thumb.jpg.01da5965e55296eace9b73c562bf59c9.jpg

265Kw_Info_Removed2.thumb.jpg.724788c2ffe45f84011662230fa7cd58.jpg

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  • 6 months later...

soooooo.......after literally 5 years of planning and slowly gathering parts, I finally got my HTA3076 1.01ar twin scroll setup on the rollers for the first time.

•S13, rb25 s1

•forged Ross pistons

•acl bearings

Oem crank and rods arp bolts

•Oem oil pump

•Cometic 1.1 head gasket

•standard head with hks 256 8.8 in / 264 9.1 ex cams •performance springs kit

•RB26 itbs oversized and rebuilt to 49mm

•cnc port matched Rb26 nismo plenum mounted using a RIPS RB25 neo cut&shut adapter also port matched

•Bosch 1650cc injectors hand machined to fit the neo adapter and hks rail, potted plugs with remote clips under plenum

•custom mounted genuine HKS fuel rail

•genuine R31house version 2 twin scroll manifold with individual egt’s on each runner

•Forced Performance hta3076 with genuine garrett 1.01ar twin scroll rear housing

•4 inch stainless exhaust from turbo back with 4 inch AES butterfly valve off the dump and AES 4 inch high straight through race muffler

•all stainless cooler piping and intake with true 4 inch HPI stainless mesh pod

•HKS TypeR 103mm thick S13 intercooler

•Grex remote filter block 

•ARC r32 gtr grille oil cooler

•ARC washer-oil catch

•ARC radiator swirl pot

•ARC coolant reservoir

•blitz radiator & 2x 14” ultra slim maradyne puller fans

•ross metal jacket balencer

•PRP trigger kit

•PRP r35 coil kit + splitfire r35 coils

•ARD alternator and PRP bracket

•hks ex cam gear, Greddy intake rb25 VCT cam gear

•greddy type R bov custom anodised PRP purple

•hks timing belt

•link Fury G4+ ecu and 12volt performance custom wiring loom

•link aim strada colour dash, 4 bar map sensor

•Turbosmart fpr

•1x walbro 255 lift/2x walbro 460 in tank, Taarks v3 surge tank, all lines replaced and upgraded for everything

•2x tial 38mm MVS external gates both with stainless screamer pipes

 

•jk40c 370z 6 speed close ratio gearbox

•Jim Wolf technology RB25 adapter plate

•auto rb25 bell

•1 piece aluminium tail shaft

•Zspeed Performance stainless steel concentric slave cylinder / bearing / lines

•NPC 1000hp twin plate clutch

•Tomei Trax 2 way 4.3 lsd

•driftworks front & rear drop knuckles

•all solid bushes and all adjustable arms throughout entire car

•whiteline RB s13 feont swaybar and long discontinued whiteline r32 gtr 32mm rear swaybar + solid billet SuperNow bush brackets

•nismo/do-luck/cusco and many others body bracing throughout the chassis (approx. 20 of them)

•full 7 point safety21 cage

•bride Brix 2 special edition red stitched black leather seats

•CarMakeRevive electric power steering column and manualised rack

•E55 AMG 8 pot front and 4 pot rear brake calipers, Akabono pads, custom machined 340mm front disks, 324mm rear disks, project Mu rear brake shoes

•wilwood bias valve in cabin

•r34gtr bm57 master cylinder

•custom braided lines

 

•HPI radiator rescue air con condenser

•Boot mounted air con pump

•Work Meister 18x9.5 +3 front wheels & 18x11 -8 rears

 

Forgotten a whole bunch of other stuff.....E85

Graph is only on gate pressure with 20spi springs, the exhaust 4” butterfly is closed and there is zero boost control turned on.

It will be returned to the Dyno once wideband is sorted properly in the dump, then it will get 30psi and an open 4” butterfly for the main tune.

It’s already quite responsive with 300whp & 20psi at 3500rpm. This Dyno is a renowned heart breaker so I’m pretty happy so far with the resultant response. I’ll update when it god back on the rollers again.

207FA802-0038-48C6-B123-40DD16D67935.jpeg

D5A2F274-FBCA-4FE8-8D0B-82EE24C79E3F.jpeg

58FD66E2-8F33-4B42-BC20-B502CBABB881.jpeg

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  • 2 weeks later...

***DynoGraph Pic after 0:17 mark of Youtube video link.

https://www.sau.com.au/forums/topic/411082-r32-skyline-gts-t-566rwhp-rb25-green/

  • Same as before of above link but now with Built RB25DET
  • Scat Rods, Ross Racing Pistons, Tomei Oil Pump, King Bearings, All ARP Studs used throughout the block.
  • Kinugawa T67-25G - Core\CHRA Replaced with (Mamba GTX 11+0 Billet 25G Wheel with Extended Tip Core, Same Turbine wheel: 54.1 / 61 mm (T67 Inconel Turbine Wheel).
  • 50 24-1 Crank Trigger Kit, 6x Hitachi R35GTR Coil packs, 6x New 1250cc Bosch injectors, Twin Walbro 460 Intank Fuel pump, All fuel lines changed to -8AN - Braided Teflon Lines,
  • All else the same but replaced with brand new Tailshaft made by Veem Engineering.

 

 

 

 

 

Edited by Black_CSR
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  • 1 month later...

R34 gtt
- unopened stock Rb25detneo

- Stock cams
- Stock plenum
- Xspurt 1000cc injectors
- Walbro 525
- Tomei fuel regulator
- Low mounted gtx3576 gen 1 W/ custom hypergear .82 rear housing internally gated
- Apexi intake
- Hybrid return flow intercooler
- Z32 afm
- Greddy profec boost controller
- Splitfire coils
- Bellmouth 3' jjr dump
- 3' exhaust with high flow cat and hotdog reasonator
- HKS high power muffler
- Nistune

Flex tune

345kw @ 20psi E85
270kw @16psi 98
 

IMG_20210519_173044.jpg

IMG_20210518_172847.jpg

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R33 Rb25det, 264 cams.
Nitto Pistons and Rods. 9:1 CPR
HyperGear ATR45SS-1 Turbocharger
ID 1500cc injectors
Twin Walbro 525L fuel pump
Haltec ECU
Aeroflow 600x300x100mm FMIC
3.5inches turbo back exhaust
4inches intake pipe with Pod
Split fire coil packs
6 Boost manifold and 50mm gate. 
Car made 473rwkws @ 26psi pulling all the way to 8000RPM, E60 fuel, 230rwkws @ 4000RPM. Would expect it making 500rwkws+ on E85 with a better cooler.

enginebay.jpg

power.jpg

boost.jpg

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  • 3 weeks later...

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