Jump to content
SAU Community

Recommended Posts

the car we've been working on is the keeper's R34 GTR with 2.6L and twin 6258s (this is not a high reading dyno)

We also have an R34 and an R33 getting the same kit on 2.8L engines over the next couple of weeks. The only r32 gtr @ Full-Race is the front clip I bought to use for mockups.,, Perhaps you are thinking of Danh Tran's carbon R32 time attack machine? he is under the gun prepping for WTAC right now: https://www.facebook.com/danh.tran.10

Before the keeper's efr6258, he had -5 twins.. we tried many different piping configs and i dont see how its the pipe design that causes the shuffle... but if your experience got rid of it then great.

Sorry to bring this up again... I'm curious what size of intake filters these cars were able to fit. Twin 3"? 3.5"? 4"?

They appear crowded in so I wonder how much intake piping they could fit.

From this thread: http://www.skylinesaustralia.com/forums/topic/341890-borg-warner-efr-series-turbos/page-50#entry6409057And a later update for the same car with a stiffer spring and retune, still on pump gas - 470kw:IMG_1062.jpg Build thread: http://www.gtr.co.uk/forum/1760881-post678.html

Here's a quick vid of it running, sorry for the sh1t filming, I'm still learning how to use the camera

  • Like 1

Unless I can trade my existing manifold I'd be going T3, I just have a good bolt in kit I want to use.

ill see what comes up in the lead time :-)

one option you could consider is to run the 7670 with T3 turbine housing initially. Then, later on if you wanted to go twinscroll - just swap to a divided manifold and a divided housing

Sorry to bring this up again... I'm curious what size of intake filters these cars were able to fit. Twin 3"? 3.5"? 4"?

They appear crowded in so I wonder how much intake piping they could fit.

the twin turbo kits use B1 EFR turbos. these all have 2.5" inlet. You can step that up to 3" if you like, but there is zero benefit to 2x 3.5" or 2x 4" on a twin setup

Here's a quick vid of it running, sorry for the sh1t filming, I'm still learning how to use the camera

sounds healthy

Well I just pulled the trigger on a full race 8374 1.05 setup with manifold and twin 44mm gates so here's hoping it's everything I hope it will be!

thats my favorite combination ive run on the RB26 over the years, you wont be disappointed

Love the video! Are you able to rev it a little more so we can hear that turbo spool a little (understand if you dont want to) smile.gif

Edited by reaper

external wastegate ; is it still civil for street driving ? or too loud?

Screamer? I suppose everyone has their own view but its way, way too loud. Everytime you give it a bit you have to listen to that - No thanks!

Screamer? I suppose everyone has their own view but its way, way too loud. Everytime you give it a bit you have to listen to that - No thanks!

I agree. IWG and No/recirc blow off valve is best for street unless you're into that stuff. Then again, my PPG dog is louder than my exhaust....

But I'd guess the EWG is best for track car.

If your car is mainly street (and even more so if its your only car), keep it simple. IWG

I wish BW'd get the finger out with the B1 7163 turbo because it's been soooooo long in the pipeline . I keep searching for new info/results but all I find is limited testing with prototypes and they've changed over time . About the only thing I've read recently is that they (I think) developed to be in step with Indycar apps and possibly that held them up . I'm guessing the "little" extras like the aluminium centre housing and the mixed flow turbine wheel have gone through the competition R/D wringer .

Anyway if you see GT3076Rs as the yardstick to measure RB25DET turbos with then the 7163 should do anything they can and in theory be better everywhere , except packaging and cost .

Being a B1 cartridge size these may or may not get the 0.83 AR T3 flanged single scroll IW turbine housing like the B2s do . There is supposed to be a T4 twin scroll IW housing for them but not sure about T3 . It's hard to say if there is sufficient call for an open T3 IW B1 housing though BW obviously thinks there is for the larger frame 7064 7670 etc .

Anyway if the 7163 really can smash everything up to 500/550 Hp whilst being light and reasonably compact , at least diameter wise , BW should clean up .

The market has waited so long for these turbos and you have to wonder what other turbo manufacturers are brewing up behind closed doors . You can wait too long and many have given up spending their money elsewhere .

Alas, don't expect logic to dictate success. FP have been making turbos for 5 years which outperform the the GT and even the relatively new GTX range by a margain and they are still hardly considered or used ... at least in this part of the world.

If you believe the chest puffing, Garrett are getting nearer to releasing their gasoline dualboost technology and potentially will move the bars for performance expectation for mid size turbochargers.

Guest
This topic is now closed to further replies.



  • Similar Content

  • Latest Posts

    • As far as I can tell I have everything properly set in the Haltech software for engine size, injector data, all sensors seem to be reporting proper numbers.  If I change any injector details it doesnt run right.    Changing the base map is having the biggest change in response, im not sure how people are saying it doesnt really matter.  I'm guessing under normal conditions the ECU is able to self adjust and keep everything smooth.   Right now my best performance is happening by lowering the base map just enough to where the ECU us doing short term cut of about 45% to reach the target Lambda of 14.7.  That way when I start putting load on it still has high enough fuel map to not be so lean.  After 2500 rpm I raised the base map to what would be really rich at no load, but still helps with the lean spots on load.  I figure I don't have much reason to be above 2500rpm with no load.  When watching other videos it seems their target is reached much faster than mine.  Mine takes forever to adjust and reach the target. My next few days will be spent making sure timing is good, it was running fine before doing the ECU and DBW swap, but want to verify.  I'll also probably swap in the new injectors I bought as well as a walbro 255 pump.  
    • It would be different if the sealant hadn't started to peel up with gaps in the glue about ~6cm and bigger in some areas. I would much prefer not having to do the work take them off the car . However, the filler the owner put in the roof rack mount cavities has shrunk and begun to crack on the rail delete panels. I cant trust that to hold off moisture ingress especially where I live. Not only that but I have faded paint on as well as on either side of these panels, so they would need to come off to give the roofline a proper respray. My goal is to get in there and put a healthy amount of epoxy instead of panel filler/bog and potentially skin with carbon fiber. I have 2 spare rolls from an old motorcycle fairing project from a few years back and I think it'd be a nice touch on a black stag.  I've seen some threads where people replace their roof rack delete with a welded in sheet metal part. But has anyone re-worked the roof rails themselves? It seems like there is a lot of volume there to add in some threads and maybe a keyway for a quick(er) release roof rack system. Not afraid to mill something out if I have to. It would be cool to have a cross bar only setup. That way I can keep the sleek roofline that would accept a couple bolts to gain back that extra utility  3D print some snazzy covers to hide the threaded section to be thorough and keep things covered when not using the rack. 
    • Probably not. A workshop grade scantool is my go to for proper Consult interrogation. Any workshop grade tool should do it. Just go to a workshop.
    • In my head it does make sense to be a fuel problem since that is what I touched when cleaning the system. When I was testing with the fuel pressure gauge, the pressure was constantly 2.5 bar with the FPR vacuum removed. When stalling, the pressure was going up to 3.0 bar (which is how it should be on ignition).
    • ECUtalk pages don't mention they support the ABS computer (consult port has more than one CAN), so you might just need a different scan tool. But, I would expect ABS is a different light to the brake warning/handbrake light, do you see an ABS light come on for a few seconds when you turn the key from ACC to IGN? But since you said: I'd have a look at the ABS sensors in the rear hubs to make sure they are not damaged, disconnected etc.
×
×
  • Create New...