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I can't remember if I mentioned it but a feller inside Garretts aftermarket section reckons that the NS111 is not new but is still a very efficient design aero wise . Its not impossibe that it could be made of Inconel rather than Mar M and find its way into production aftermarket 30 series turbochargers . Thats what I would hope for but who knows what the future brings .

Theres no sign of the 53.8mm NS111 turbine in the GT28 series being replaced and for what it has to do it works very well .

A real rough hack formula based on the increase in diameter (area actually) from almost 54 to 60mm may give a vague comparison of what the 60mm version is good for . It looks to be about 24% greater area than the 53.84mm one .

A .

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I wasn't offended at all disco just thought it was a smidge rude just ignoring my offer. A simple no thanks would of been fine :) But the thing is how could you know it wasn't what you were looking for if you never gave it a chance? I know you're very anti GT30 but if you are chasing that 300kw goal realistically what are your other options? EVERYBODY that drove or rode shotgun in my car was impressed with its performance and streetability. Much to your beliefs you won't get a better street setup than mine and to be honest having something that isn't making boost as soon as you touch the throttle is more streetable as I'm certain it aids in fuel economy on the street as its not under load constantly imo.

Dale your reaction when my car came on song when you drove it (Laughing your ass off) was priceless mate ;)

Mick I ment no offense , so don't be . I think I remember reading your account of how your car goes and thinking while the results sound very impressive probably a bit over the top for me . I don't really want to use a turbo with a T04E sized compressor housing if I can help it and have to space it out on the exhaust manifold . This is one of the reasons why I'm mildly interested in the GTX3067R - it uses a T04B comp housing of roughly similar dimensions to my GTRS . An EFR 7163 is also remarkably compact for whats claimed of them .

To look in my engine bay you have to be very familiar with a GTS25T to notice much other than what Nissan put there . Its a big challenge to have a bit more oomph and have it look very standard .

I wholeheartedly agree that a ride in your car would be interesting and if we can find the time I look forward to it .

Now on this GT30/TR30 turbine business . The reality is that the TR30 one is not currently on offer where the GT30s are readily available . I have word that this is being looked at but no timeframe - in other words don't hold your breath . In the meantime the most responsive current tech GT30 turbo is the GTX3067R and the first real world results should be coming through any day now . The EFR 7163 is a bit further away and still going through final development .

ATM I'm looking at other things with this car so turbo changes can wait .

A .

Poking around, I found these two pics. One is of the WRC Ford Zetec (restricted, 2.5 bar), the other is Ken Block's Ford Fiesta(unrestricted, 4 bar). The detail is quite amazing when you go through them.

post-19642-0-79186700-1362827974_thumb.jpg

post-19642-0-26879900-1362827992_thumb.jpg

I think there was a link somewhere indicating a Mazda LMP was running a TR30 but no pics found.

There is also a Garrett spec sheet/blurb posted up here http://www.freshalloy.com/showthread.php/153372-Tial-vs-Twinscroll/page2 that makes for interesting reading too. They state explicitly that a couple of their compressor specs are for restrictor type classes. Makes Lithium's dyno sheets and comments about that Evo hold pretty true.

Adrian there will always be a reason to want something different than the next man. Mick's R33 would be difficult to improve upon for a very streetable and innocuous road car perspective. It's quiet, and it hammers in a refined way. It's that much fun I would challenge anyone to not laugh aloud during/after a drive. Some day I look to repaying the favour to him.

Given you have the hardware available, I would think that a bit of a run with Mick would see your 52T GT3076 fitted up and the car tuned for ethanol. I wouldn't be holding my breath for massive improvements in transients from that spec and the GTX3067. Noticeable, yes, but only slight. Consult with Wolverine if necessary regarding what happens when the turbine spec is unchanged and comp is altered from 82 to 76mm.

.Your Vipec can handle any changes necessary with a turbo upgrade, and the pump is easy - just be sure to get a direct full-voltage feed.

Be good to see a bit of info regarding the EFR gear flowing into this thread too.

How would a GTX3067 compare to a GT2876 ( 48trim , 0.86rear) if you added an anti-surge cover and maybe an external wastegate?

Wasnt the GT2876 designed for conditions such as race cars operate in, restricted intake or are they still a terrible idea?

Edited by AngryRBGTX

sorry didnt make that clear, the gt2876 would have the port shrouded cover and external gate i mean, to help with surge and the small rear.

oh and add E85

Edited by AngryRBGTX

Trawling around I found a bit of info regarding the Mazda MZR-R, as developed by AER. I understand that AER was the an offshoot from Cosworth following their sale and corporate split-up, and this company does a lot of contract development work specifically for race/competition engines.

I was already aware of a lot of speed gear available through the UK to suit the Mazda MZR, reference typically being made to Cosworth as the supplier. That production engine is what we see in things like the MX5, CX5, Ford Focus, and Falcon Ecoboost 4 cylinder. There is some pretty serious internal gear that is used in the MZR so we see them installed in 2.3 litre N/A form into Mark 2 Escorts, as a modern and cheaper equivalent of the 70s original BDA Cosworth.

Seems that Mazda have been involved with this project engine powering LMP sports cars, and reference is made to the use of the TR30 in restrictor equipped form. Check http://www.racecar-engineering.com/articles/technology/mazda-mzr-r-lmp2/ and http://www.aerltd.com/products.html

Pics of that engine in its proper environment, TR30 installed.

post-19642-0-82513300-1362911914_thumb.jpg post-19642-0-29297600-1362911935_thumb.jpg

One significant design outcome is very light weight of the TR30. I saw a claim of 8 pounds.

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