Hypergear Turbochargers and High flow Services Development thread

[Mitcho_7]

Just realized they said there was boost control issues so I guess that would be affecting power up top a fair bit as well.

If it was holding boost to redline I still think itd be 250+

I wouldn't expect it to be hitting 270kw on 20 psi with a 15+ yr old motor.

Edited March 26, 2012 by Mitcho_7

[Birds]

Wait for the charts gentlemen, no point speculating over power figures or what's responsible for them until we see what the engine is doing. As JEZ said, there's probably a bit more in the turbo if they take the time to sort out boost etc. but for now Kasko should be pretty happy and he looks to be.

[DVS JEZ]

[Bond]

Nice result. What rpm is it making full boost?

Very similar curve to my 3040 But mine dips hard at around 5500rpm and 240rwkw.

Edited March 26, 2012 by Bond

[Birds]

Very smooth. Boost tapering off = another 10-20 if you can get it to hold without the engine pinging?

Full boost looks like high 3000's / 4000rpm, I'm guessing.

[ARTZ]

Is that same turbo you have birds?

[hypergear]

Need ebc to hold boost up top. I'm testing a little mod this weekend and hopefully that changes the boost behavior up to.

[Manuel Kasko]

Need ebc to hold boost up top. I'm testing a little mod this weekend and hopefully that changes the boost behavior up to.

Already got a profec b spec 2 installed in it

This didnt help with the tapper.

Seems the actuators are not up to holding the 20psi consistently

Also as DVS said it seems my clutch is either on its way out or needs a bit of adjusting/bleeding

The car feels phenomenal when it comes onto boost and spins 2nd without hesitation cruising.

Next step is a CAI and a box for the pod filter might help a little.

We did back to back power runs on a safer tune and only lost around 1-2kw

[DVS JEZ]

As above. The ebc helped bring boost on earler but couldnt help the taper.

[Birds]

Is that same turbo you have birds?

Yeah man.

when it comes onto boost and spins 2nd without hesitation cruising.

How bout that!

What size tyres you running?

[lilcrash]

Seems the actuators are not up to holding 20psi consistently

As has been said many times before.

[Manuel Kasko]

How bout that!

What size tyres you running?

To be honest I dont actually know.

But will get back to you this afternoon with the answer

[DVS JEZ]

Tao please post up an AFR plot for ur results.

[Mitcho_7]

You gotta be happy with the result though considering it looks to be dropping around 3psi up top.

Fingers crossed your clutch doesn't need to be upgraded though.

[SimonR32]

Very smooth. Boost tapering off = another 10-20 if you can get it to hold without the engine pinging?

Full boost looks like high 3000's / 4000rpm, I'm guessing.

Assuming it's 4.11 diff ratio and normalish sized tyres is nearly at full boost at 4000rpm with 180rwkw

Not exactly comparable with a GT-RS

[GTScotT]

Assuming it's 4.11 diff ratio and normalish sized tyres is nearly at full boost at 4000rpm with 180rwkw

Not exactly comparable with a GT-RS

180rwkw @ 4000rpm IS comparable to a GTRS, I agree.

Forget about where it hits full boost etc etc. The power @ RPM will tell you what its doing flow wise, which is what counts.

[SimonR32]

180rwkw @ 4000rpm IS comparable to a GTRS, I agree.

Forget about where it hits full boost etc etc. The power @ RPM will tell you what its doing flow wise, which is what counts.

Every decent turbo makes 180-200rwkw at 4000rpm on a RB25... It can be a T67, 3071, 3076 or HKS 2835pros, they all do it

It's what happens before and after then that makes the turbos different!

Edited March 26, 2012 by SimonR32

[Birds]

Every decent turbo makes 180-200rwkw at 4000rpm on a RB25... It can be a T67, 3071, 3076 or HKS 2835pros, they all do it

It's what happens before and after then that makes the turbos different!

[GTScotT]

Yeah, so doesnt a GTRS do roughly 180-200 @4000 and end up around 250 by 7000? LOL

So its more or less hitting GTRS benchmarks, OK glad we agree.

[Birds]

If the turbo can hold boost for the upper RPM, there's no reason it can't make 260-270 IMO, so no it's not comparable to a GTRS...it's slightly better