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^^^ oooh but the sound alone is worth 1000 dollars :) that car got the second largest gathering out the front..... 1st place was a supercharged M5 so dont feel too bad :P

haha I won't be surprised if i change my mind in a few months and come knocking on your door lol

the runs are way less that 15seconds, the red one from memory was with a mega retarded exhaust wheel, i was trying a few things and it just so happens the valve springs did not play up as much on that run. i only included it as a comparo to say it still has alot more in it.

On average we use a relatively short run rate 9-12 seconds.

Final position of the exhaust cam wheel was so close to zero it is irrelevant :P

Interesting... My exhaust wheel was set at -4 so we just left it there and didn't fiddle with it, looks like you picked up some mid range with it closer to zero. Might have to try if I ever bother going back to the dyno :)

Interesting... My exhaust wheel was set at -4 so we just left it there and didn't fiddle with it, looks like you picked up some mid range with it closer to zero. Might have to try if I ever bother going back to the dyno :)

Have you considered cams for your setup simon?

Have you considered cams for your setup simon?

I've considered it, but since I've pretty much maxed the turbo I doubt it would make much difference, maybe the same power on less boost.

Realistically I've got more than enough power as it is haha

As for e85 vs pump, ... when i was talking to trent ... he said there could be up to a 50kw gain from E85 over bp98, ... atm im around 255-260rwkw on bp98.

Yes there is no doubt that E85 offers significant benefits, which was the basis of my question. Perhaps best answered by Trent - for a reasonably well sorted T67 25G (eg OMY31T or battery) running BP98 - what general benchmark have you seen or would you expect? E85 is not widely available in Qld so it's of interest.

Im a big fan of bang for buck setups ... with that said i don't think its fair to compare this setup with an IW garret or high flow low mount purely because of the legalities involved..

Understand your point of view on this one. I'm a little different, just looking at it from spending X dollars, and getting Y result. Redirecting dollars saved on turbocharger into a proper fabricated manifold and external gate is not silly, and something worth considering.

Yes there is no doubt that E85 offers significant benefits, which was the basis of my question. Perhaps best answered by Trent - for a reasonably well sorted T67 25G (eg OMY31T or battery) running BP98 - what general benchmark have you seen or would you expect? E85 is not widely available in Qld so it's of interest.

Trent told me he likes to do a base tune with 98 first my car made 300kw on bp98, not sure on the boost level that was used....

Trent told me he likes to do a base tune with 98 first my car made 300kw on bp98, not sure on the boost level that was used....

Considering how good the results are (~300kw on 98 and ~340kw on e85) and spool is around the 3500-4000rpm mark, what is the next size down turbo?

As if it makes say ~280kw and is spooled completely by low 3k to 3500, sounds like it might be a GT3071 killer for response. Or is it possible to just get a smaller hot side with similar results?

Edited by Rolls

exactly I'd still really like to see a result with the TD06SL2-20g 10cm

Youtube shows 1JZs doing 400ps (300ish rwkw) and standing up strong from 3500.

That is the said turbo ala Rolls.

I cannot wait to buy one for my JZ, but am SOOOOOO tempted to go T67. I was actually planning to create a poll thread for myself (I am willing to click but it now tonight) but maybe we can just discuss it in here?

Can I get a show of +1 for 20G or T67?

EDIT: I should also mention I am MR SUPER RESPONSE incarnate, however am also needing to school some people who may only be game to drag.

Can I get a show of +1 for 20G or T67?

Haha its a hard one I think the T67 is perfectly usable on the street but i'd still like to see results for the SL2

But really If its 100% street and you want 260KW with brutal response wouldn't something more legal like a GTRS be a better option. The external gate makes you a massive target you really have to pick your spots..

Edited by battery

What is the next size down from the TD06SL2-20g 10cm which would make ~260-270kw? Sounds like that would come on just after 3k which would be amazing for a street car.

If you can find a 10cm housing for a TD05-18G that'll be the next step down from a 06-20G.

Edited by D_Stirls

Im running a 1JZ and cost is a major factor for me, so GTRS is not so much of an option. Believe me I savor internal gate like nothing else but my options are not to my liking.

On the GTRS note, I could just get its T2 footprint counterpart but miss out on the port shroud option. Plus I believe the 20G is more power with better response than 3071.

As for whats under SL2 20G, that could be a great number of things.. That could be a TD06-20G (minor downsize in ex wheel flow), or a TD06 based turbo with an 18G compressor (similar in physical size yet smaller in trim) or you could even look to a TD05H 18G or 16G.. TD05H-16G is whats factory on an evo and has been known to do 230kw at all 4 (2L 4cyl AWD) all day long.

The MHI range of turbos delivers.

what's the difference with the 20g SL2 ?

Basically I'm curious what will better my GCG highflowed rb20 turbo, it has ~GT28 ish spec internals and makes 240rwkw currently, awesome response but dives over too early, would be nice to say increase the response from 3000 rpm to 3500rpm max and hold the power to 7.5k instead of diving over at 6.5k

TD06S = Inducer 65mm; Exducer 55.3mm, Blades 12

TD06SH = Inducer 67mm; Exducer 58.8mm, Blades 12

TD06SL2= Inducer 61mm; Exducer 54.1mm, Blades 11

Like i said above i would suggest a TD05SH-18G (T518Z), the SR guys are seeing slightly better response than a GT2871R (20psi~3500rpm) and they make 260kw+ with cams (on an SR).

Edited by D_Stirls

what's the difference with the 20g SL2 ?

Basically I'm curious what will better my GCG highflowed rb20 turbo, it has ~GT28 ish spec internals and makes 240rwkw currently, awesome response but dives over too early, would be nice to say increase the response from 3000 rpm to 3500rpm max and hold the power to 7.5k instead of diving over at 6.5k

If your willing to be clever, you can get a "T518Z" from kando for 700 bucks. TD05H-18G in an SR20 bolt on form (internal gate) which is the trust style item. As mentioned above, strong results on SR's. I dont think you would need a 10cm housing for the said unit, however the clever part is what you will do about it being T2 based. See if that dudes RB20 with bolt on adapter works out and that will tell you if this combo will also work. That would meet and exceed what you are describing above.

However, be it myself I would probably look to work with what ive got.. If its an RB20 turbo you should be able to go to a R33 2IU rear housing for a MINOR increase in AR. Pick up a dud housing and have HG grind it out to the right size for you. Thats likely to be what I would do, that or an OP6 rear housing with your existing working unit.

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