Jump to content
SAU Community

Gt55 Or Gt60?

TwinTurboM3

By TwinTurboM3,
in Engines & Forced Induction

 Share

Recommended Posts

STATUS Grand Master

STATUS

Posted
Posted
thank you very much. RB family has been helpful and also was a source of inspiration.

i will test different A/R s on the exhaust side, different cams and try to find the best combo on my Dynamics. BTW you Aussie people have a wonderful Dyno, and i am also a lucky owner of dynamics dyno as well.

dyno dynamics are ok but if your serious there is only one dyno and that is DYNAPACK..... far less hollywood, far more accurate and repeatable (especially at the kinda power you are talking 800hp and up) and no harder/longer to setup than a roller.

fkn sweet cars BTW i would love to drive that twin turboed bimmer.

Slide Grand Master

Slide

Posted
Posted
dyno dynamics are ok but if your serious there is only one dyno and that is DYNAPACK..... far less hollywood, far more accurate and repeatable and no harder/longer to setup than a roller.

fkn sweet cars BTW i would love to drive that twin turboed bimmer.

Not harder or longer to set up then a roll on dyno??? lol

Ill stick with the rollers.

HP on dyno's is Hollywood full stop regardless of the type.

Nice setup on the M3 :)

TwinTurboM3 Contributor

TwinTurboM3

Posted
  • Author
Posted
I'd be having a look at what borgwarner/airwerks have to offer. They do a 91mm turbo and a few other sizes between that and the gt60 sized compressor which is huge.

Precision has a range of 91 - 94 - 98 - 101 mm compressor wheels but i want to stick to Garrett.

A 98 mm falls between a Gt55 and Gt60, but i insist on Garrettt.

TwinTurboM3 Contributor

TwinTurboM3

Posted
  • Author
Posted
dyno dynamics are ok but if your serious there is only one dyno and that is DYNAPACK..... far less hollywood, far more accurate and repeatable (especially at the kinda power you are talking 800hp and up) and no harder/longer to setup than a roller.

fkn sweet cars BTW i would love to drive that twin turboed bimmer.

Thanks mate.

I drove the 2.8L twin 2871 for 10 kilometers, then we decided to change the ex manifolds, and i fabricated tubular manifolds. as it is a hobby, it took some time. And a bigger intercooler is in place.

first minutes engine did not pass over 5000 rpm. I was shocked. Boost was 3 psi. Then i realized the ECU had a safety rpm cut at 5000 rpm. Removed the limiter.

During that 10 kilometers test drive, it was like sex driving twin 2871 2.8L

Now, with the 3,2L and 3,9L capacity, the feeling (power) may be amazing, assuming all go well.

Dynapackk, more time involved for wheels etc.

But you guys should be proud of Dynamics, what a consistency and quality.

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


  • Latest Posts

    • GTSBoy
      R34 power steering

      By GTSBoy · Posted

      49719 is the cooler loop. Right at the front, LHS of that diagram. Return line from rack (LP side) goes to cooler loop on RHS front of car, then back under engine and returns to bottom of tank. 49717M is feed from tank to pump. HP line out of pump is thick rubber, followed by the hard line that runs down to crossmember and runs in parallel (but opposite flow direction) to the LP return line. Nothing goes anywhere near the firewall or interior of car. The closest they get to that is the connections on the rack.
    • drifter17a
      R34 power steering

      By drifter17a · Posted

      Thanks, plan is to drain all fluid tomorrow and do smoke test to find out the leak.   Appreciate your help and want to understand how the system work. So cooling is achieved by the long loop not any rad? The diagram seems to suggest it connects to somewhere inside the cabin and I thought that is a cooler inside firewall. If you look at the diagram it seems to show it connects to something inside firewall. I tried chasing it but not easy unless I take loads off   i am confident pump is good as fluid goes in and it gets soft( steering) but as soon as I turn engine off , loads of bubble come to surface and overflow. When engine is on , fluid level is below minimum but when off it shoots off and thinking it is sucking air in. I suspect aluminium pipe may have a crack line or whole   smoke test with no fluid should be a good start and if needed will remove the pump   In addition, the one going under the engine bay is high pressure line and one directly connecting from pump to resorvoir is return/ low pressure?   finally I searched and suggestion is to use dexron 2 but that is discontinued so bought dexron 3 as all research suggest it is compatible and shouldn’t cause any issues/ blow seals. I bought two liter of dexron 3 motul atf
    • GTSBoy
      RB25 S2 Idles but doesn't want to rev

      By GTSBoy · Posted

      Don't worry about. Just don't try to drive hard enough to make boost and you'll be fine.
    • GTSBoy
      R34 power steering

      By GTSBoy · Posted

      Yes. This has already been said. It is a loop of hardline in front of the radiator. Because.... the pump is on the LHS and the steering rack hydraulic connections are where they always are on a RHD steering rack....on the RHS. The high pressure line goes down under the engine, along the crossmember, like it does on all Skylines. Don't just throw expensive braided hoses/other kits at it. Work out what is wrong and fix that.
    • Trilbyte
      RB25 S2 Idles but doesn't want to rev

      By Trilbyte · Posted

      Still got the afm on the intake, clamps are shut tight, only loose hose is the one that goes from the j pipe towards the IACV, since it's next to impossible to find a factory hose and the barbs are different sizes (I'm still using clamps on this hose to try and help it seal on the iacv side) I've ordered parts to make up the hotside of the intercooler pipes, I'll plumb it in and see what happens in a few days I suppose The turbo's internally gated, can I just unscrew the tension rod to let the gate open?
×
×
  • Create New...