Freebaggin

That is brilliant mate! I must come over and check it out! You know that used to use centrifugal turbos/turbines for jet engines back in the old days, then they went to axial flow turbines like they use now. Check this out: http://www.nybro.com.au/downloads.php I work for GE, maybe I could grab one of our 200MW turbines and strap it to something.

Could be. It's back up to 296-297rwkW after Shaun got all the shit running properly again. Also running lower boost to protect motor (stock) so less power and again maybe stock manifold bit restrictive in the high revs. Car still madness on the road tho. 2.5L + 300rwkW is plenty with rear wheel drive only, any more and it gets too dangerous. Mallala for example with more power is a waste of time unless you have big slicks and well sorted suspension. Sambo33, I'm just running a cat back zorst.......

No, EBC better all round, so better boost/torque curve bottom end and also holds boost better at top end.

I forgot to get my dyno but here is one from before. Use the blue line as that pretty much the same as the dyno day figure of ~290rwkW.

Bargain!

Between you, me, Simo, Chris and John there should be no dramas with a job like that mate!

Mine glows WHITE hot I've got so much power now...

These are my beasts:

Cool, good result. Are you happy to detail the turbo type you have, boost level and dyno chart?

Guys, Anyone with +300rwkW using stock exhaust manifold (RB25DET)?

Dicso, it would be a different exhaust housing completely as the turbines are different sizes and therefore the size of the exhauist housing is bigger for the same A/R. Darren, we could look into sourcing the exhaust housing together and get a better price maybe?? PM me if you want to look into that.

Mait32, do you have a picture of the back end of your turbo? Cheers, Freebaggin.

Thanks Joel, I knew you would reply at some stage as I've seen you reference that turbo a few times. Cheers.

Anyone?!? A lot of froth and bubble about HKS turbos and yet no one owns one.

Hi all, I am struggling to find pics of the exhaust housing for this turbo, plenty around of HKS's GT2835ProS but none of the bigger internal gate 30 series turbo. If you have pics, please post up. Thanks in advance. Freebaggin.

Thanks bicarl. Do you have a pic of exhaust housing showing size of internal gate? Do you know it's diameter? Do you have issues with boost creep as revs rise? Questions, questions.....

Anyone have one of these: http://www.gcg.com.au/Catalogue_Menus/Garr...b_gt3040_iw.htm Only interested in internal gate one. If so, how does it perform?

I agree with 9krpm, the fact that Ethanol has more oxygen in it means it is has less potential to burn because it is already down the path of oxidation. Therefore more fuel is required for the same bang and the bang is smaller at the same time. On balance, I reckon Ethanol in fuel is crap. Toluene is good because it is hard to burn so you can then run more timing with a lower isk of pinging. It also produces a bang equivalent to or better than say straight 98 octane petrol. They say BP98 does not use aromatics (like Toluene) to achieve 98 octane, so when you do add Toluene in, the Octane rating increases more readily.

Done...what a champ, thanks.

Hi there, I have tried all sorts of ways to remove/change the line below my Avitar. I don't know how it got there and as you can see it says "RB25DE", which I don't have. Can someone help me please? Cheers, Lachlan.

....or did Nozilla say it?.....

Are you kidding? How many Skylines or other imports out there actually don't have programmable ECUs these days. Surely only poofs own Skylines without prorammable ECUs . The ONLY reason people buy Power FCs etc is to reprogram fuel and ignition to make more power, this typically means more ignition advance and less fuel.....or have I misunderstood your statement that there are bugger all hard tuned import cars in SA?!?!?

There is no change is manifold pressure at or after the switch point, going by the boost trace, so I'm not sure what you are saying is entirely correct but thanks for the contribution. I suspect it will be an easy fix via the various suggestions above.

Same turbo, it's always ramped up to 17-19psi at around 4000rpm, it's just that the other mods like cams etc have stretched torque curve, it used to drop off at the top. Tim never told me that re pinging, we'll see when we have another go.

It's a MAP sensor ECU.