Gtr Joey's R32 Gtr E-Flex, Twinscroll 83/75 Results

[KiwiRS4T]

Very impressive. How far away from a dragway? Interested to see the results!

The surge tank makes for a very tidy installation compared to others with multiple pumps. Any idea of the fuel capacity of the tank?

Two 38mm wastegates flow more than a 50mm and less than a 60mm - what is the reasoning for having two rather than one with a single turbo?

And what size and type of bov(s)?

[Piggaz]

Twin scroll turbo and manifold.

[GTR_JOEY]

Only about 20 min from the drag strip mate, should hopefully get down there before the end of the year, hopefully make a 10sec pass

Capacity of the surge tank it 5L from memory

Like Paul said, running the twin gates cause I wanted to keep it a true twin scroll set up

BOVs are just the standard ones but vented to atmosphere

[DCIEVE]

Nice result joey. This gives me hope the 88/75 with full race mani on the 30 will be worth the wait.

[GTR_JOEY]

Good to hear Nick,

just remember that the turbo is going to sit very high.. especially on a 30 block

[Piggaz]

Nice result joey. This gives me hope the 88/75 with full race mani on the 30 will be worth the wait.

Interesting to see how this goes.

More specific details of the setup?

[black bnr32]

How did you guys get the boost to come in so much earlier on the orange line?

[KiwiRS4T]

How did you guys get the boost to come in so much earlier on the orange line?

Looks like by turning up the boost from 20 to 25psi

and I quote:

"The only difference in the two lines in the graph is that there was more boost added to the mid range for when i wanna bump up the power for the drag strip"

[black bnr32]

I believe "more boost added" isn't quite the correct explanation. Just looking for clarification so i can try something similar.

Edited December 2, 2012 by black bnr32

[GTR_JOEY]

I think, and this is my explanation until I actually ask the tuner, because the boost was higher in the second line through the mid range.. The boost controller held the gates shut tighter not allowing any leakage.

there was no changes besides the extra boost through the mid range

[MaTBoY]

Ahhh, so I just had a look through the thread, that's why the car sounds the way it sounds and goes the way it goes. Very nice!

[Trozzle]

BOVs are just the standard ones but vented to atmosphere

Correct me if I'm wrong, but assuming the 32GT-R BOVs are the same as a 33GT-R they're gonna be sitting slightly open when in vacuum and as a result be sucking in (a very small amount) of unfiltered air.

Not sure how concerned you are about that, but it's the reason I stopped using my stock 33GT-R BOV and switched to a proper atmo.

[GTR_JOEY]

Haven't even really thought about it mate, to be honest I'm not overly concerned, I don't think there is anything to be too concerned about

I would rather keep the standard BOVs

[bigmikespec]

Nice one Joey, you going to lean on this BW turbo a bit more?

[SimonR32]

Did the boost not hold top end because turbo was running out of puff or was the boost controller set up to drop off with more revs?

Keen for videos... Get on it

[GTR_JOEY]

Haha vids this weekend

That's pretty much the limit of that turbo, we put more boost into it but it just want making any more power.

So we backed the boost off up top and beefed up the mid range..

Yavuz wants to put a precision on it lol

[SimonR32]

I just need to install a second 044 pump in mine and run the lines and mine will be ready for a tune with the 6262, if you hold off until then might give you an idea if you want to swap and if you do go the same or bigger

[Lithium]

Little surprised it didn't make more than that, though still very stout power. Keen to see video :-)

[GTR_JOEY]

Ah excellent, are you still running a 2.6? what work have you got done to your head?

once the Tune was done we ended up taking the BW off and bolting in a 6466, didnt quite line up at the dump pipe though, other wise i dare say id be running around with Pauls turbo right now haha

Yavuz reckons response would be the same if not better and it wouldnt choke so much up top

Well after seeing the power it made on pump on low boost (around 375rwkw) i would have thought it would have made more power...

but by the time we played with the cam gears and got boost coming on nice and early we lost that little bit up top

at the end of the day the front fan is only 60mm and for it to make that power with that kind of response, i couldnt have asked for much more really

I just need to install a second 044 pump in mine and run the lines and mine will be ready for a tune with the 6262, if you hold off until then might give you an idea if you want to swap and if you do go the same or bigger

Ah excellent, are you still running a 2.6? what work have you got done to your head?

once the Tune was done we ended up taking the BW off and bolting in a 6264, didnt quite line up at the dump pipe though, other wise i dare say id be running around with Pauls turbo right now haha

Yavuz reckons response would be the same if not better and it wouldnt choke so much up top

Little surprised it didn't make more than that, though still very stout power. Keen to see video :-)

Well after seeing the power it made on pump on low boost (around 375rwkw) i would have thought it would have made more power...

but by the time we played with the cam gears and got boost coming on nice and early we lost that little bit up top

at the end of the day the front fan is only 60mm and for it to make that power with that kind of response, i couldnt have asked for much more really

[GTR_JOEY]

some more pics