Jump to content
SAU Community

Recommended Posts

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...

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...
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
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
  • Like 2
  • 2 months later...
  • 2 weeks later...
  • 3 weeks later...
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
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. 

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...

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

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...

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...

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

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • Good luck on the weekend mate
    • Must have been an absolute nightmare to drive when the power steer was out, the rack ratio/wheel size/caster is all set up for power assistance
    • Welcome to SAU, what are you looking at buying?
    • I checked the injectors again (1 and 2, since they’re easiest to access) to make sure they weren’t clogged. Even though the entire fuel system had been cleaned, I wanted to be certain. Everything looked clean, so I reinstalled and connected everything. When I started the car to confirm everything was okay, it immediately revved up high, so I shut it off straight away. I checked to see if I’d missed a vacuum hose or something, but everything was connected. On the second attempt, the car ran without the high idle, but I noticed a distinct “compressed air” sound coming from the engine bay. Tracing the sound, I pushed injector #6 forward slightly and the noise stopped — it turned out it wasn’t seated properly, despite the fuel rail being bolted down. While holding it in place, the car idled steadily without stalling and ran for over 5 minutes. At this point, I pulled all six injectors out just in case I hadn’t seated them correctly or dirt had gotten onto the O-rings. Unfortunately, I discovered that I had damaged 3 out of 6 injectors (the OEM 270cc ones) during installation. So yes, this was my fault. Since only the pintle caps were damaged, I’ve ordered a Fuel Injector Service Kit from NZEFI to refurbish them. In the meantime, I reinstalled my new injectors – the car now idles fine for over 15 minutes without stalling. I have not attempted to drive it so far. It’s not perfect yet, as it hesitates when the throttle is pressed, but it’s a big improvement. Unplugging the IACV with the new injectors idles at around 800rpm, even with the IACV screw tightened fully. But this is probably due to tune.
    • I wanted to try and preserve the front bumper as long as possible, they're not cheap and are made to order in Japan. Taking inspiration from my previous K11 Micra build where I made an undertray for the Impul bumper, I did the same for this BN Sports bumper but a little slimmed down.  This time round I only made a 'skid plate' (if that's the correct wording/term) for just the bumper surface area, the Micra version covered the gap like an undertray. Starting off with a sheet of mild steel approx. 0.9mm thick 4ft x 2ft in size. I traced around the bumper, cut it out and cleaned the edges. Luckily I was able to get two halves from one piece of metal In the video I installed it as is, but I've since then I've removed it to spray and add a rubber edging trim. The rubber trim is suitable for 1-2mm and it's a really nice tight fit. The bolts had to be loosened due to the plates being too tight against the bumper, the trim wouldn't push on I used some stainless M6 flat headed bolts for a flusher finish (rather than hex heads poking down), I believe this style fastener is used for furniture too incase you struggle to source some. The corner's are a little wider, but this may be an advantage incase I get close to bumping it  The front grill got some attention, finally getting round to repairing it. Upon removal one fixing pulled itself out of the plastic frame, one side is M8 that fixes inside of the frame, where as the other side is M5. Not knowing I could get replacements, I cut down an M8 bolt, threaded it inside the frame along with a decent amount of JB Weld.  The mesh was replaced to match the bumper. One hole on the bonnet/hood had to be drilled out to 8mm to accommodate the new stud, once the glue had set it could be refitted. I think the reason the grill was double meshed was to hide the horn/bonnet latch (which makes sense) but I much prefer it matching the bumper Bumper refitted and it's looking much better IMO The Youtube video can be seen here: https://www.youtube.com/watch?v=bVZP35io9MA
×
×
  • Create New...