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Rb26 Turbo Upgrade, All Dyno Results


SLY33

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14 minutes ago, HarrisRacing said:

Sure. Stock cadillac ctsv makes 485 whp on this dyno. Stock focus RS mashes 318 whp on this dyno.

But it's inertia so mine looks like it spools late. I also live AT sea level. Was like 5 C in shop that night so cold dense air.

update to a 100mm cooler mate

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  • 1 month later...

xlarge.unigroup-dyno-12mar2018.png.b1c2e

334kw in 2WD mode on -7s :)

Nistune (tuned by Unigroup)
Xforce split dumps
Aftermarket front pipe (56mm(2.25“) ID primaries/76mm(3”) sec), 3.5in matrix 100 cell cat, 3.5 in Trust Cat back
Blitz SSBC boost controller
Xspurt 1000cc injectors
LS2 (D514a) coilpacks
Trust Intercooler, about the same size as stock
Sard 280l/hr high volume fuel pump with direct earth
Mobil M1 0W-40

 

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  • 1 month later...

My R32’s previous config was setup as a Targa car, roughly 300kw @ the wheels using a pair of GT-SS's and some supporting mods.

It was time for a change – my new setup is focused on track days.  To be clear up front, I’m not chasing dyno numbers here!  The brief to RacePace was to build it once and give me a responsive engine with reliability. 

·      N1 Block

·      RacePace stage 2 2.8

·      9 litre sump

·      100mm Intercooler

·      1,000 cc Injectors

·      Borg Warner EFR 8374 T4 1.06A/R

·      Twin 40mm waste gates

·      98 PULP (E85 on the cards in the near future)

I'm super impressed with the response and looking forward for its first track shakedown..

Dyno.jpg

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My New R32 GTR
Stock RB26
Stock dumps
Greddy downpipe
R34 GTR Intercooler
Garrett -7 turbos
Intake Pods
17 psi boost (looks like cut on top end)
Same dyno as used on my old car
93 octane pumpgas (USA)

Dynos start at 10 psi and move up from there.

Screenshot_20180422-203217_Gallery.jpg

Screenshot_20180422-203155_Gallery.jpg

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  • 1 month later...
1 hour ago, WantGTR said:

32 gtr

Forged 26

Kelford cams

E85

Gtx3584rs

784hp at rears. Mainline hub dyno.

Will hold off the (like) until you post a dyno plot (y)

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8 minutes ago, Lithium said:

Will hold off the (like) until you post a dyno plot (y)

Ill get a print out next time im at the workshop. Will race it soonish and report back with mph.

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  • 2 weeks later...
On ‎6‎/‎11‎/‎2018 at 3:39 PM, WantGTR said:

Ill get a print out next time im at the workshop. Will race it soonish and report back with mph.

1.01 or 1.21 rear? 32-33psi?

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On 4/20/2018 at 4:45 PM, Scott Mc said:

My R32’s previous config was setup as a Targa car, roughly 300kw @ the wheels using a pair of GT-SS's and some supporting mods.

It was time for a change – my new setup is focused on track days.  To be clear up front, I’m not chasing dyno numbers here!  The brief to RacePace was to build it once and give me a responsive engine with reliability. 

·      N1 Block

·      RacePace stage 2 2.8

·      9 litre sump

·      100mm Intercooler

·      1,000 cc Injectors

·      Borg Warner EFR 8374 T4 1.06A/R

·      Twin 40mm waste gates

·      98 PULP (E85 on the cards in the near future)

I'm super impressed with the response and looking forward for its first track shakedown..

Dyno.jpg

Hi do you know what rpm full boost?

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5 hours ago, Nosure said:

Hi do you know what rpm full boost?

I had a similar setup (except the .92 IWG) and would make 20 psi at 3600 rpms if I punched the car from 2k in 3rd. 30 psi before 4k rpms. Stroker 2.75L on new N1 block and stock bores. Almost same power on pumpgas.

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On 7/17/2017 at 5:24 PM, Trailmix said:

 R32 GTR

530hp@19psi

2.8l (supposedly)

tomei cams

tomei manifolds

700cc injectors

nismo fpr/pump

R34 N1 (AA403) turbos

hpi elbows 

mines frontpipe

Decat

HKS exhaust 

tomei ecu

 

 

 

IMG_1794.PNG

I see that this dyno is in question. On my previous post you will see new garrett -7 turbos (extremely similar to N1's) on my RB26 car which is a stock engine with greddy downpipe, HKS hi power exhaust, and intake pods on 18-19 psi boost. We are making the exact same HP at 5k and the curves look VERY similar aside from your max power. I find hard to believe that this is a stroker engine on those turbos. It's either a stroker on -5's or is a really healthy high-flowing 2.6 on the -7's (which I find more believable). Check your stroke by running a rod in a spark plug hole and measuring high and low of the stroke while you roll the engine to know for sure. 

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9 hours ago, WantGTR said:

1.01 

32psi

Same turbine housing as mine. Your dyno figure kind of matches my results. All things being equal... 580ish @ 32psi hub dyno figure vs. 530ish @ 26psi on a roller dyno.  I'm looking forward to seeing what mine makes at 32-33psi.

 

Looking forward to seeing your dyno sheet to compare response between the RB26 vs. RB25/30. Also looking forward to seeing what MPH yours runs at the drag strip.   

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16 hours ago, HarrisRacing said:

I had a similar setup (except the .92 IWG) and would make 20 psi at 3600 rpms if I punched the car from 2k in 3rd. 30 psi before 4k rpms. Stroker 2.75L on new N1 block and stock bores. Almost same power on pumpgas.

Thanks for reply. That’s great result. What power it made on what psi? I’m looking for get 8374 iwg or 9180 iwg. But no result I can find.

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