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Rb26 Turbo Upgrade, All Dyno Results

SLY33

By SLY33,
in Engines & Forced Induction

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Nismo 3.2ish Grand Master

Nismo 3.2ish

Posted
Posted

There is some info on the EFRs on this thread, might help .                 "Borg Warner EFR Series Turbo's V 2.0"

From what I have seen the 8374 should liven it up a 1000rpm ish earlier , looks like it really gets going @ 4000 RPM now :)

  • 2 weeks later...
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Paul T
Paul T

RB 28 with GTX3584RS used as Track car HKS step 2 2.8 full counter rank rods and pistons HKS 272 exhaust cam HKS VCAM Pro with 10.2 lift Ported head - ferrera valves etc Peter

SiR_RB
SiR_RB

PMC race engines built 2.8 High compression build  N1 block, billet main caps, braced + 1/2” main studs  I beem rods 625+ bolts Custom pistons  full house head cnc + hand port

Scott Mc
Scott Mc

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. 

Posted Images

HarrisRacing Proficient

HarrisRacing

Posted
Posted

Updated dyno from yesterday's tuning session. Increased timing from factory Haltech up 3-4 deg. Also increased boost from 17-18 up to a pretty solid 20 psi. BIG changes in HP. This 8374 LIKES THE BOOST. So the car is up about 50 whp over last time at the drags so it should be 10 sec pass on street tires and pump gas this time around. Also they just finished two E85 stations around my house so get ready for REAL power soon!

Getting FUN! Here's comparison to last time at the dyno. Also on this dyno a stock C7 Z06 put down 571 HP/576 TQ so with 14% drivetrain loss it's right at factory claimed 650/650 for comparison purposes (for whatever that matters).

Build is 2.75L BC Stroker crank on stock bores
Tomei Poncam A set 0-0
ported head
BC SS valves
Hypertune V2
CP valve-relieved pistons
BW 8374 IWG .92 turbo
6 Boost Divided T4 manifold
 

 

 

 

dyno MH first v last top HP change.jpg

dyno MH first v last torque dip change.jpg

New dyno MH vs old dyno Hoyt.JPG

  • Like 2
  • 2 weeks later...
usmair Mentor

usmair

Posted
Posted (edited)
8 minutes ago, ido09s said:

Have you had a chance to race this yet?

keen to hear what mph it runs ;)

134MPH.... didnt stack up to power.... could be due to:

- Not having the boost it was tuned at on the night - should have had 31psi but it was running 29psi

- Me taking it easy during gear shifts due to standard box

Will go back eventually.... blew the box 2 weeks ago so might wait until I have something stronger.

Edited by usmair
ido09s Mentor

ido09s

Posted
Posted (edited)
31 minutes ago, usmair said:

134MPH.... didnt stack up to power.... could be due to:

- Not having the boost it was tuned at on the night - should have had 31psi but it was running 29psi

- Me taking it easy during gear shifts due to standard box

Will go back eventually.... blew the box 2 weeks ago so might wait until I have something stronger.

 

All dynos are different mate, even wheels/tyres will make a decent difference. I don't think its too far off the mark though. Our car makes 485rwkw at 23psi and runs 138mph. Unigroup is known to have a bit of a tough dyno though.

Its still decent mph that your car runs. I wouldn't be too concerned about it. Get the box done and race it :)

Edited by ido09s
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  • 2 months later...
  • 2 weeks later...
  • 3 weeks later...
.R33. Enthusiast

.R33.

Posted
Posted
On Monday, June 20, 2016 at 7:07 PM, .R33. said:
On Wednesday, May 04, 2016 at 5:03 PM, .R33. said:

Hi all just got my R33 GT-R le mans tuned.

Unopened r33 rb26 done just under 100,000 (whether it is legit or not lol)

Mods:

r34 n1 turbos

Ported stock manifolds

Split dump pipes

Xforce front pipes

100cel cat 3"

3.5" cat back

Apexi pods

Trust fmic

Hks evc-5

Link g4+ ecu (no afm's)

Siemens 660cc injectors

Nismo fuel reg

Walbro 255

OS Giken twin plat clutch

Probably more i missed.

Made 300hp on 14psi

365hp on 20psi

Was hoping for abit more after seeing some of the results here, but tuner said to do cams/gears/springs and should get near the 400hp mark.

Added a set of tomei adjustablecam gears. Car now makes 385hp atw 18psi on 98 :) dropped 2psi and gained an extra 20hp...

Impressive gain, wish i did it sooner!

 

Got the gtr flex fuel tuned.

Added a set of splitfire coils, 3.5 inch decat(4inch body), 1000cc injectors, walbro 460 pump hardwired 14v, modified twin turbo plate (divider welded in) ethanol content sensor.

437.7hp @20psi on e85

20170223_173749.jpg

  • Like 1
.R33. Enthusiast

.R33.

Posted
Posted
2 hours ago, ActionDan said:

You happy with the response given they are N1s?

 

Yes pretty happy, feels like they come on full boost quicker than the dyno paper says. Only driven it twice sine i picked her up and havent really looked at rpm and boost. 

mr_rbman Grand Master

mr_rbman

Posted
Posted
On ‎23‎/‎02‎/‎2017 at 6:27 PM, .R33. said:

 

Got the gtr flex fuel tuned.

Added a set of splitfire coils, 3.5 inch decat(4inch body), 1000cc injectors, walbro 460 pump hardwired 14v, modified twin turbo plate (divider welded in) ethanol content sensor.

437.7hp @20psi on e85

20170223_173749.jpg

seriously look @ cam gears, should be getting full boost quite a bit before you currently are...

perhaps also consider different dumps if they are the short splits...down the track...

.R33. Enthusiast

.R33.

Posted
Posted
On 01/03/2017 at 1:51 PM, mr_rbman said:

seriously look @ cam gears, should be getting full boost quite a bit before you currently are...

perhaps also consider different dumps if they are the short splits...down the track...

Tomei Cam gears were put on last year. The dumps are the short split type, when i change turbos to -9's or -5's i will eother go bellmputh or the longer split dumps with matching front pipe. When should i be seeing full boost by? Cheers

mr_rbman Grand Master

mr_rbman

Posted
Posted
On ‎4‎/‎03‎/‎2017 at 5:47 PM, .R33. said:

Tomei Cam gears were put on last year. The dumps are the short split type, when i change turbos to -9's or -5's i will eother go bellmputh or the longer split dumps with matching front pipe. When should i be seeing full boost by? Cheers

Daniel, I would expect -7's to see fullboost (18-20psi) by 4000RPM, give or take a couple hundred RPM...

If you have cam gears already see what they are adjusted to...

lcxu105 Proficient

lcxu105

Posted
Posted
On 23/02/2017 at 5:57 PM, .R33. said:

 

Got the gtr flex fuel tuned.

Added a set of splitfire coils, 3.5 inch decat(4inch body), 1000cc injectors, walbro 460 pump hardwired 14v, modified twin turbo plate (divider welded in) ethanol content sensor.

437.7hp @20psi on e85

20170223_173749.jpg

https://www.youtube.com/shared?ci=xD3jOhM_COY

  • Like 1
  • 2 weeks later...
Lethal26 Contributor

Lethal26

Posted
Posted

Here is my results 

R33 GTR

stock head apart from arp head studs n tomei type b valve springs n retainers 

gtw3884r 62mm 1.00 ts

6boost ts t4 mani 

turbosmart 60mm gate 

3.5" tbe 

100mm fmic

bosch 1000cc 

walbro 460

turbosmart v2 1200

458rwkw @ 28psiIMG_1980.thumb.PNG.edaf5f020a696b09376daa25332cb3d6.PNG

 

 

 

  • Like 1

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