Jump to content
SAU Community

21u highflowed onto a 34 neo engine

SoulScene

By SoulScene,
in Engines & Forced Induction

 Share

Recommended Posts

SoulScene Enthusiast

SoulScene

Posted
Posted

Basically my op6 r34 turbo is dead, for a quick fix will the 21u r33 turbo (highflowed) as i can't afford the gtx3076 just yet but need the car on the road. As far as I'm aware it'll bolt on, and being highflowed would assume it'd be same/better than a standard op6?

Link to comment
https://www.sau.com.au/forums/topic/466678-21u-highflowed-onto-a-34-neo-engine/
Share on other sites
admS15 Grand Master

admS15

Posted
Posted

It will be much better than a standard op6. You will need to have your car tuned if u want anything decent out of it. Otherwise you can run it as is at say 10 psi untuned and it will be ok and perform roughly about the same as your op6.


chiksluvit Experienced

chiksluvit

Posted
Posted

Will be better than the standard op6

Recently went from op6 highflow to 21u highflow on r34, hoping to achieve better response, haven't started car yet so can't really comment since I'm getting a whole lot of other stuff done to it too. but I hope it'll achieve good response and make around 260rwkw region

SoulScene Enthusiast

SoulScene

Posted
  • Author
Posted

Awesome thanks guys, just after a quick fix for now so the car is driveable so 10psi will be fine.

Gearbox needed rebuilding, turbo went and then got rear ended to top it all off, all in 14 days. So unfortunately the turbo got the quick/cheaper fix for now

dc2low Contributor

dc2low

Posted
Posted
On 06/09/2016 at 8:26 PM, chiksluvit said:

Will be better than the standard op6

Recently went from op6 highflow to 21u highflow on r34, hoping to achieve better response, haven't started car yet so can't really comment since I'm getting a whole lot of other stuff done to it too. but I hope it'll achieve good response and make around 260rwkw region

How did you go with the retune man? Was the op6 really laggy?

chiksluvit Experienced

chiksluvit

Posted
Posted
11 hours ago, dc2low said:

How did you go with the retune man? Was the op6 really laggy?

Will find out soon, still busy finishing off some of the work on the car

I've had 21U highflow from precision, OP6 from GCG and OP6 from hypergear throughout the few skylines I've had and I preferred the 21u.

Managed almost 280rwkw on 20psi from the OP6 hypergear but the OP6 highflow doesn't really see full boost until 4000rpm

It'll hit full boost slightly earlier on the 21U. But I think the biggest difference is partial throttle response, where it matters the most in everyday driving.

Seeing that Hypergear is getting some good results from the 21U i thought I'd swap the rear housing over. Will report back once it's ready to go

dc2low Contributor

dc2low

Posted
Posted

Yeah that sounds about right, I managed to get 397kw on a hypergear op6 highflow..minor spike to 22 psi then drops down to 20 psi. Looks like I will be getting a 21u housing machined up. Thanks for the reply and good luck with your car!!

  • 4 months later...
V28VX37 Veteran

V28VX37

Posted
Posted
On 14/09/2016 at 10:15 PM, dc2low said:

Yeah that sounds about right, I managed to get 397kw on a hypergear op6 highflow..minor spike to 22 psi then drops down to 20 psi. Looks like I will be getting a 21u housing machined up. Thanks for the reply and good luck with your car!!

Wow that's a crazy good result! E85 I'm guessing?

CEF33Y Experienced

CEF33Y

Posted
Posted
On 14/09/2016 at 10:15 PM, dc2low said:

Yeah that sounds about right, I managed to get 397kw on a hypergear op6 highflow..minor spike to 22 psi then drops down to 20 psi. Looks like I will be getting a 21u housing machined up. Thanks for the reply and good luck with your car!!

 

On 09/02/2017 at 6:45 PM, V28VX37 said:

Wow that's a crazy good result! E85 I'm guessing?

 

15 hours ago, dc2low said:

Nah mate, bp98.

Is that a typo? 397kw? did you mean 297kw?

 

Cause damn, 397kw on a op6 higflow on 98 is wizardry.

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

    • The Bogan
      Wheel Sizes & Offsets For Skylines

      By The Bogan · Posted

      The speedo's can be very conservative, when my Mazda NC MX5 speedo is showing 118kph, the GPS, and a calibrated radar.... cop mate.....hits me at around 110kph +/- 1 or 2 kph, and that is on a 215/45 17, stock tyres size is 205/45 17 as well, so weirdly conservative with stock tyre size When my Commodore speedo red 116kph GPS had me at 110kph After doing some offset and clearance measurements to see what can fit the NC on 17x8 +40, without guard rolling or rubbing anything at my current ride height, I've decided that when my tyres are toast, I'm going to fit 225/45 17 and see where that gets me IRT actual speed of my speedo and GPS/radar From the online calculator I should be still be doing around 5kph under an actual 110kph when the speedo is showing 110kph My ADHD requires that when I'm doing 110kph on the speedo, that the actual road speed is actually really close to that, and not alot slower And going from 205 to 225 still keeps the car within the %/mm allowable in the NSW vehicle rules and regulations, which is nice, as long as I'm looking at the latest version that is.....LOL https://www.nsw.gov.au/sites/default/files/2021-02/RMS-13.464-Light-vehicle-modifications-Vehicle-Standards-Information-No-6-November-2013.pdf
    • MBS206
      R34 25GT Engine Light 21

      By MBS206 · Posted

      Take the value it measured as, and pick the closest range available that is above the reading on the screen.   Also, no point just testing the coils. Read what has been said again. You need to test all your wiring, everything.
    • GTSBoy
      R34 Handbrake light saying ON and intermittently flashing

      By GTSBoy · Posted

      Does the scanner do all the CUs in the car, or only the ECU?
    • albyz34gt
      R34 N/a And R34 Turbo (gtt) Transmission.. Uh, Problem.

      By albyz34gt · Posted

      @666DAN sorry to bring you and old thread.     I've got my de+t done and it's all running great other than 1 small issue.    Car has remained auto with the na auto and tcm, I've used a stagea ecu with. NIstune board and everything is great other than my gear selection on the dash. It illuminates park, reverse, neutral, 3rd and 2nd when selected . But nothing when in  drive or what gear your in when you pop it into tiptronic. I'm sure there is maybe 1 wire in the ecu plug I need to move to rectify this. Do ya have any ideas?     Cheers man
    • RB25inside
      R34 Handbrake light saying ON and intermittently flashing

      By RB25inside · Posted

      Well I recently changed my rear axles and was thinking if I bumped anything, I have been driving the car for a while now though... But it has been raining today so everything is wet under the wheel arches. Brakes feel fine and can't hear any of the metal screamers, I had a squeak coming from one of the handbrake drums but that seems to have gone away a while ago. I was going down a hill when it lit up and I did feel the abs bite for a second and question why it did it?
×
×
  • Create New...