Jump to content
SAU Community

S15 Turbos on RB26???

MR_RB

By MR_RB,
in Engines & Forced Induction

 Share

Recommended Posts

MR_RB Apprentice

MR_RB

Posted
Posted

Has anyone used a pair of S15 turbos in a GTR or anyother car using an RB26?

Just thinking since these regularly make 180kw on S15 that they should make 300RWKW on an RB26 pretty easy.

If i am wrong please let me know, the aim is to make 300RWKW by doing the following

Injectors

Fuel Reg

Fuel Pump

Computer

Fuel Pump

Intercooler

S15 Turbos x2

Would i need do to the cams aswell???

Link to comment
https://www.sau.com.au/forums/topic/54868-s15-turbos-on-rb26/
Share on other sites
mokompri Community Regular

mokompri

Posted
Posted

people with sr20det silvias can sometimes squeeze out ~210rwkw with cams and such with these T28's, its what the silvia community consider to be a step down from HKS GT2530's, which most find to give them around ~230rwkw

IMO it wouldnt go too badly with with an rb26dett, you wont make as much as twin gt2530's, but you will probably have better down low and mid range... also cost factor, as these turbos can be had for around $1200 new and going for as low as $700 for good condition second hand one, it makes it a good option

though they run a T25 flange, so custom manifold is needed

Dash Enthusiast

Dash

Posted
Posted

there was a thread on here somewhere about this

apparently the rear turbo will foul on the engine mount and require mods to fit

i think water and oil lines are in a different position and the compressor covers are larger

pretty sure flanges bolt up though

lots of other easier options out there

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      Ok i will get those 310mm. I found one but on a different site. This is the description on those...is it ok? Technical parameters: - Axle: front. - Disc type: ventilated. - Number of holes: 5. - Disc diameter: 310mm. - Total height with center: 54mm. - Thickness (new/min.): 30/28mm. - Designed for brake calipers manufacturer: Sumitomo.
    • GTSBoy
      Mistakes were made, my R34 Story

      By GTSBoy · Posted

      You Gregged a whole racetrack!?
    • GTSBoy
      R32 GT-R: 4WD Light Turns On After Bumps – Code 19 (ETS Motor) But No Issues Found

      By GTSBoy · Posted

      Look for broken wire or bad connector at the motor. Might not be it, but is worth starting there, as it is easy.
    • Bireley_32
      R32 GT-R: 4WD Light Turns On After Bumps – Code 19 (ETS Motor) But No Issues Found

      By Bireley_32 · Posted

      Hi everyone, I’m having an issue with my R32 GT-R. Sometimes, when the car goes over a bump or experiences some vibration, the 4WD warning light comes on the dashboard. When I check the code from the control unit in the trunk, it shows Code 19 – ETS Motor. However, everything seems to be working fine — if I turn off the engine and restart the car, the light goes away and everything functions normally. Has anyone experienced this before? Where should I start troubleshooting this issue? Thanks in advance!
    • Kinkstaah
      Mistakes were made, my R34 Story

      By Kinkstaah · Posted

      I'm back from the dyno - again! I went looking for someone who knew LS's and had a roller dyno, to see how it shaped up compared to everything else and confirm the powerband really is peaking where Mr Mamo says it should. TLDR: The dyno result I got this time definitely had the shape of how it feels on the road and finally 'makes sense'. Also we had a bit more time to play with timing on the dyno, it turns out the common practice in LS is to lower the timing around peak torque and restore it to max after. So given a car was on the dyno and mostly dialled in already, it was time for tweaking. Luis at APS is definitely knowledgable when it came to this and had overlays ready to go and was happy to share. If you map out your cylinder airmass you start seeing graphs that look a LOT like the engine's torque curve. The good thing also is if you map out your timing curve when you're avoiding knock... this curve very much looks like the inverse of the airmass curve. The result? Well it's another 10.7kw/14hp kw from where I drove it in at. Pretty much everywhere, too. As to how much this car actually makes in Hub Dyno numbers, American Dyno numbers, or Mainline dyno numbers, I say I don't know and it's gone up ~25kw since I started tinkering lol. It IS interesting how the shorter ratio gears I have aren't scaled right on this dyno - 6840RPM is 199KMH, not 175KMH. I have also seen other printouts here with cars with less mods at much higher "kmh" for their RPM due Commodores having 3.45's or longer (!) rear diff ratios maxing out 4th gear which is the 1:1 gear on the T56. Does this matter? No, not really. The real answer is go to the strip and see what it traps, but: I guess I should have gone last Sunday...
×
×
  • Create New...