Top RB20 Club... do you have over 260rwkw?

[FATGTS-R]

On the R31house site, they show a GTSR resto and it shows a brand spankers turbo so obviuosly they are available but I agree it would have cost a bomb.

I have the homologation papers for the GTSR and it doesnt show any turbo changes but I guess it doesnt really mean anything as there was a lot of "grey" areas.

[FATGTS-R]

OK, I need a PC literate person here atm. I scanned the graph and the file size is over 11mb.

Obviuosly too big but how do I reduce the file size so I can upload it?

[Rolls]

OK, I need a PC literate person here atm. I scanned the graph and the file size is over 11mb.

Obviuosly too big but how do I reduce the file size so I can upload it?

<{POST_SNAPBACK}>

If it isnt already save it as a jpeg, then try changing the resolution to something lower, around 500x500 ish should be good, depends on what program you are using as to how you do this.

[FATGTS-R]

If this worked here is the graph. A LOT smoother tune than previous where boost ramped so hard it wheel span in third and almost in fourth. Now it is a lot more linear and just pulls away very hard in third with no sign of spin at all.

Edited January 14, 2006 by FATGTS-R

[Drift_Mulisha]

What kind of turbo was used to make that much power on an RB20? thats awesome! i thougth the old school T04 setup the gtsr's had wouldnt make anywhere near that power & still be reasonably responsive. is full boost around 4000rpm?

[Roy]

216rwkws at 4,500 rpm. I so hope that is a stock RB20:)

The old RB20 has plenty of legs if you spend th emoney in the right places....Hell they won the ATCC in 1990 so they cant be too bad a thing:)

The more i see posted here, the more i think that you need a good exhaust manifold if you want to have any power between 3,500 and 4,500rpm.

Makes me a little paranoid about how good the cast HKS manifold i have will go?

[Cubes]

Why are you going the hks cast manifold Troy?

Old one cracked?

I will be keen to see back to back results.

[Roy]

All this taslk about ball bearing turbos, 2835s being great...i figure ill give one a go and see how it compares...then either the TD06 or the 2835 will be for sale

[Interloper]

All this taslk about ball bearing turbos, 2835s being great...i figure ill give one a go and see how it compares...then either the TD06 or the 2835 will be for sale

<{POST_SNAPBACK}>

that sounds like a great comparison! I take it will be the same racepace dyno and tuner?

just get 1 run on the dyno again with the TD06 set up so you are sure of the base numbers, as if the dyno has been recalibrated or so settings changed then your old numbers will not be entirely comparable.

anyway, i already can't wait to see the results!

[carl h]

216rwkws at 4,500 rpm. I so hope that is a stock RB20:)

The old RB20 has plenty of legs if you spend th emoney in the right places....Hell they won the ATCC in 1990 so they cant be too bad a thing:)

The more i see posted here, the more i think that you need a good exhaust manifold if you want to have any power between 3,500 and 4,500rpm. 

Makes me a little paranoid about how good the cast HKS manifold i have will go?

<{POST_SNAPBACK}>

roy, ive got the hks cast mani on my rb20 and havent had a problem yet with it.

[Roy]

Yeh, but are the runner lenghts etc as ideal as my tubular Trust manifold, or a GTS-R manifold. Im not sure, and my friend who knows more then i will ever know doubts the 2835 with cast manifold will keep up wiht the TD06...which makes me htink perhapsi need to hunt down a HKS tubular manifold or even better another Trust manifold, and just modify the flange...then it will be a good comparision

[RS500]

doesn't the HKS cast manifold have a T3 flange?

[Roy]

Yeh, but the Trust flange uses a 3 bolt flange. If i run the same manifold then any difference will be the turbo.

If i can get a Trust one and change the flange on it, it would be an interesting comparison as it would be same engine, same manifold and gate, same tuner and dyno....the only variable would be the turbo.

[carl h]

Yeh, but the Trust flange uses a 3 bolt flange. If i run the same manifold then any difference will be the turbo.

If i can get a Trust one and change the flange on it, it would be an interesting comparison as it would be same engine, same manifold and gate, same tuner and dyno....the only variable would be the turbo.

<{POST_SNAPBACK}>

not sure if you would want to do this but OBX (read: dodgy copy parts) here stateside makes a turbo manifold which is an EXACT copy of the trust one, might be worthwhile picking one up if you are going to be hacking it up anyways as they are fairly cheap to be had and to me dont look anyworse than a trust unit.

i too have wondered about the efficiency of the hks unit but it seems to be working fine so no need to change it imho.

[Roy]

Cool...any links to places where you can buy them...price?

[carl h]

oh forgot, ebay .

[SimonR32]

nice power fatgts-r

until 4500 it is very similar to my graph but then opens can of woop arse on mine top end... so there goes roys theory of the manifold being needed

hopefully with a bit more boost (aka 20psi) i should be seeing a similar curve to yours just a little less top end more like 250rwkw. but then again i might get all happy and try and run 22psi as well as see how well she goes

im about to do a au falcon coil pack conversion to see if it fixes my miss, ill let u guys know how it goes

Edited January 18, 2006 by Cerbera

[Roy]

nice power fatgts-r

until 4500 it is very similar to my graph but then opens can of woop arse on mine top end... so there goes roys theory of the manifold being needed

hopefully with a bit more boost (aka 20psi) i should be seeing a similar curve to yours just a little less top end more like 250rwkw. but then again i might get all happy and try and run 22psi as well as see how well she goes

im about to do a au falcon coil pack conversion to see if it fixes my miss, ill let u guys know how it goes

<{POST_SNAPBACK}>

But isnt your APexi turbo only a 320hp turbo, their equivelant to a 2530? If thats the case i would hope it matches his up 4,500rpm?!?!?!?!

[SimonR32]

380hp

and its making 306rwhp on 18psi with a lack of timing

tuner said it will easily make 320+ on only 18psi, just need to fix the miss

Edited January 18, 2006 by Cerbera

[Jago]

geez, ONLY 18 psi :|

i think next step/s for me is/are EBC, splitfire coilpacks, then major headwork =]