the GT28RS .86 is a great match for this engine, especially stock internals, I made 495whp/410tq at 10psi with a very restrictive exhaust setup. if you're built it certainly depends
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02-12-2013, 12:12 PM | #406 (permalink) |
A True Z Fanatic
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the GT28RS .86 is a great match for this engine, especially stock internals, I made 495whp/410tq at 10psi with a very restrictive exhaust setup. if you're built it certainly depends on your power goals. Personally I never wanted more than 600-650whp max, I built for reliability. I'm quite confident the disco potatoes will get me over 600whp on 93, the GTX has some small improvements if you aren't running much boost, but once you get past ~18psi they are different animals all together.
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02-12-2013, 01:09 PM | #407 (permalink) | |
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Quote:
The original stages of what I wrote were what we were looking at on paper. As you we all know, real world testing can yield completely different results. That being said, we see no need to offer previous listed turbine wheel options in the GTX28 series turbo's. When we define stages for our products, it is going to be related to vehicles requirements to be efficient. For example: Stage 1 requirements are going to be for the stock car. GT2860RS, require mild fuel modifications, boost controller optional, pump gas tune for the individual that is looking to make between 450-475 RWH "daily drivable." This stage will also be the most affordable because for someone who only wants to achieve this power level, there is no need to spend unnecessary money on more expensive turbo's that they will never utilize. Everything for stage 1 will be supplied with the kit. Stage 2 may require additional fueling modifications, i.e. Aeromotive pump vs. the Walbro pump to be able to fully utilize the GTX 28 series. As well as exhaust system requirements and MT clutch or automatic transmission modifications. A boost controller will be needed to turn up to boost for those who want to push the limits of what the stock engine can handle. The GTX2867R will most likely be our stage 2. Stage 3 is for the big boys/gals! For individuals who want to make serious numbers. All of the requirements from stage 2 with the addition of internal engine modification, larger fueling (return fuel system), rear differential work and our 3" exhaust. Turbo's associated with this stage will be custom matched to your specific requirements, i.e. weather you are a drag racer, road racer or just the weekend street warrior. Our exhaust manifolds can support turbo's deep into the GT30 series. We can utilize turbo's that can make well over 1,000 HP to the ground if your drivetrain can support it. The lines between the the 3 stages do not need to be in black and white. For instance, you can add a boost controller to stage 1 as well as take our car for example. This is a between a stage 1.5 and stage 2. Currently we are using stage 2 turbo's, no boost controller, still on pump 91 octane, low boost levels and the 2.5" exhaust. All in all it depends on you as the consumer and what you want out of it. Very much like our exhaust systems we have designed a kit that can be custom tailored to your wants and needs. We are still doing extensive testing with various combinations and the turbo system altogether. Our goal is to be able to answer any question thrown at us. I think that this covers it all for now. Thanks, Tony
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02-12-2013, 02:38 PM | #409 (permalink) |
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We have talked about it however perfecting this kit for the Z & G Coupe/Sedan is the top priority.
Thanks, Tony
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02-12-2013, 10:33 PM | #411 (permalink) |
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This is a big dream for all us Cali guys... The chances are very slim from what Tony and I have discussed. There is a cold start test where the cats have to start heating up within a certain time period (a good bit under a minute IIRC) and the turbos stop that from happening as they absorb a lot of air and heat as I'm sure you know. I am not saying its impossible and I am sure Tony will chime in more on this but just wanted to help give a little information.
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02-12-2013, 11:16 PM | #412 (permalink) |
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Say if you started out with the stage 1 kit and down the road wanted to fully build the motor, could you just swap out the turbos to the gt30s and upgrade the fuel system? Would that be possible?
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02-12-2013, 11:31 PM | #413 (permalink) | |
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Quote:
Thanks, Tony
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02-13-2013, 01:03 AM | #414 (permalink) |
A True Z Fanatic
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Videos look great, Tony! I see your test driver hit the dreaded 2nd gear lock out at high RPM. :P Happens to me once in awhile, but it is very embarrassing. Prior to getting a new transmission, 3rd gear would do the same and grind.
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02-14-2013, 11:30 AM | #416 (permalink) |
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Update,
We have "brand new" Mickey Thompson E.T. Street Radials on the way. We have the Turbosmart E Boost 2 on the way. (Electronic Boost Controller) We are headed back to the dyno next Tuesday February 19th for another session. We are confident that we have the fuel pressure drop off solved. If this holds true, we will be able to turn up the boost and see what the car can put down on the Stage 1+ kit w/103 octane. Our plan is to head back to the track next Friday February 22nd to see what we can run. Stay tuned...
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02-14-2013, 11:44 AM | #418 (permalink) | |
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Quote:
Also, any info on the fuel pressure drop off?
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02-14-2013, 01:08 PM | #420 (permalink) |
A True Z Fanatic
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D'oh. It may be hard to find small diameter rims for the sport...
In related news, that car is gonna need some upgraded brakes with that TT kit!
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Car Sold! Pleasure being a part of the Z community. New ride: 2015 GT-R - 647 WHP / 641 WTQ (e85) & 543 WHP / 519 WTQ (91) |
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