Single Turbo RX-7's Questions about all aspects of single turbo setups.

GT35R T4 Divided Available

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Old May 27, 2005 | 03:30 PM
  #26  
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Nice work and nice WG placement

Gene
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Old May 27, 2005 | 03:46 PM
  #27  
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Sean, why do you put a flex line on the wg? Shouldnt they move together since they are both connected to the turbo/manifold?

Stephen
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Old May 27, 2005 | 05:21 PM
  #28  
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Looks nice Sean. I had the 35/40 with the 1.06 T3 for a while and it spooled great with decent top end. I can only imagine what it would do with a true T4.
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Old May 27, 2005 | 09:42 PM
  #29  
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Originally Posted by carlos@the-rotary.net
Great looking kit Sean. I'm almost sorry I wasn't more patient.

That said, I'm thrilled with my A-Spec GT40R kit.
I know but it took forever to get those turbine housings done over a year and I kept hearing "anyday now" So I blame no-one for not waiting, and please keep us informed about how your progress goes.


Originally Posted by gfelber
Nice work and nice WG placement

Gene
Ha! I was hoping you would see it. You were the only guy I spoke to who was aware of placing it there. I could never get it to work right on the short runner manifold like we were discussing. So it had to wait till this turbine setup was finally in my hands. When your ready we will take care of you if you wanna upgrade.


Originally Posted by SPOautos

Sean, why do you put a flex line on the wg? Shouldnt they move together since they are both connected to the turbo/manifold?

Stephen
It allows for some movement and expansion. I have seen many without crack on the reroute.

Originally Posted by Rotary Experiment Seven

Looks nice Sean. I had the 35/40 with the 1.06 T3 for a while and it spooled great with decent top end. I can only imagine what it would do with a true T4.
I agree I think it will be real nice even with the larger 1.12 we'll see I have a bunch going out.
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Old May 28, 2005 | 12:29 PM
  #30  
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Originally Posted by gfelber
Nice work and nice WG placement

Gene

Originally Posted by Zero R

Ha! I was hoping you would see it. You were the only guy I spoke to who was aware of placing it there. I could never get it to work right on the short runner manifold like we were discussing. So it had to wait till this turbine setup was finally in my hands. When your ready we will take care of you if you wanna upgrade.
Gene or Sean would you care to elaborate on the purpose of the wastegate in that position?

Are you guys taking about it being inverted or that the WG exhaust flows in a relatively strait line to the DP? What is the benefit of this?
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Old May 28, 2005 | 02:09 PM
  #31  
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Looks like a great design....I would have been happy to go with one of your 35/40 kits if it wasn't for the Cali smog laws...
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Old May 28, 2005 | 06:29 PM
  #32  
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When will the FC version be ready?
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Old May 28, 2005 | 11:08 PM
  #33  
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From: look behind you
Originally Posted by rotarypower101
Gene or Sean would you care to elaborate on the purpose of the wastegate in that position?

Are you guys taking about it being inverted or that the WG exhaust flows in a relatively strait line to the DP? What is the benefit of this?

I was wanting to get the wastegate away from the DP and tranny for awhile. There is just a lot of heat right in that area. Gene called here awhile back and was working on the same plan. I just couldn't work it into the shorter manifold so it had to wait. Just less stress on the wastegate thats all and yeah it allows for a better aproach angle into the DP as well.

Originally Posted by rynberg

Looks like a great design....I would have been happy to go with one of your 35/40 kits if it wasn't for the Cali smog laws...
Our lower short runner manifold works with the airpump, combine it with a well done CAI and it would be hard not to think you wouldn't pass.

Last edited by Zero R; May 28, 2005 at 11:14 PM.
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Old May 28, 2005 | 11:41 PM
  #34  
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Are you going to offer an external dump kit?
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Old May 29, 2005 | 12:18 AM
  #35  
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From: look behind you
However the customer asks either way I can do it.
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Old May 29, 2005 | 03:31 AM
  #36  
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Originally Posted by Zero R
Our lower short runner manifold works with the airpump, combine it with a well done CAI and it would be hard not to think you wouldn't pass.
I don't think the testers would buy that the single and that manifold work was OEM....we have both visual and sniffer test here.

Nice work though, it's good to see a company that actually does solid engineering and makes a quality product.....seems like those companies are getting rare these days. Please keep up the good work, I won't be stuck in this state forever and I'll need a single kit at some point....
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Old May 29, 2005 | 07:27 AM
  #37  
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Fc version perhaps? Looking to turbo my n/a...lol
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Old May 29, 2005 | 07:44 AM
  #38  
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Originally Posted by rynberg
Nice work though, it's good to see a company that actually does solid engineering and makes a quality product.....seems like those companies are getting rare these days. Please keep up the good work, I won't be stuck in this state forever and I'll need a single kit at some point....
if only you guys knew personally how much time Sean puts into his work. he puts alot of R&D into his work, hes always looking to improve products.
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Old May 29, 2005 | 08:36 PM
  #39  
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Is that a 3" downpipe or 3.5" ?
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Old May 30, 2005 | 12:41 PM
  #40  
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can someone help a newb out and explain the benefit of this design over what is currently used?

its much easier then me making some misinformed guesses.

cheers
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Old May 30, 2005 | 03:30 PM
  #41  
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From: look behind you
What are you referring to turbo or kit?
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Old May 30, 2005 | 04:56 PM
  #42  
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Both I guess.
If we buy the turbo only, is it extra for v-band ?
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Old May 30, 2005 | 05:03 PM
  #43  
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From: look behind you
Turbo comes V-banded. The benefits of the kit were explained above. It has optimum runner length and is equal in length. It runs fully divided, the thought behind it is no cross talk between runners, as well as allowing you to run a larger turbine housing and still get the same response as a smaller one which equates to a broader powerband. ie. more flow up top but still quick spool of smaller turbine housing. Hope that helps.
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Old May 30, 2005 | 05:30 PM
  #44  
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anyone have any price ideas on this turbo/kit?
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Old May 30, 2005 | 05:48 PM
  #45  
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So is the v-band 3" or 3.5" ? What size is your downpipe ?
I know you make quality manifold, just wondering what size v-band the turbo has. I've already gotten my T4 manifold and am looking to buy the turbo only. But now after seeing the pics, I may just as well buy the whole kit. Still considering...
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Old May 30, 2005 | 06:00 PM
  #46  
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From: look behind you
DP is 3" I'm sure we could make something if you wanted more but I really don't see the need. I would say call for a price. I would say call or email for pricing.
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Old May 30, 2005 | 07:12 PM
  #47  
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Talking

Yes As A - Spec Does Make Some Of The Coolest Manifolds Around **** Just Look At That **** And Damn Does It Puts The Power Down !!!!!
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Old May 30, 2005 | 09:27 PM
  #48  
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Very nice work man....but when will the FC version be available and price?
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Old May 30, 2005 | 10:41 PM
  #49  
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Originally Posted by diabolical1
from what i've read, that would be the GT35. the R denotes the ball-bearing version.

GT35 and GT35R have different compressors.

For comparison:
GT35:
wheel dia=76
trim=52
A/R=.50

GT35R:
wheel dia=82
trim=56
A/R=.70

You can also buy a GT35R compressor without a ball bearing center section-I have been running this setup for about a year now and am very happy with it. Therefore, 'R' does not refer simply to the center section type.
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Old May 31, 2005 | 12:13 AM
  #50  
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From: look behind you
Originally Posted by CCarlisi
GT35 and GT35R have different compressors.

For comparison:
GT35:
wheel dia=76
trim=52
A/R=.50

GT35R:
wheel dia=82
trim=56
A/R=.70

You can also buy a GT35R compressor without a ball bearing center section-I have been running this setup for about a year now and am very happy with it. Therefore, 'R' does not refer simply to the center section type.



You can buy just about any combo of wheels, however Garrett uses the "R" to refer to BB. I can get you a wheel diameter of 88 on a GT35R if you were interested but it wouldn't be ideal.

The first two positions are always GT.
Position “X” is used to indicate a revision to an original “GT” series turbocharger. The original GT turbocharger will never use position “X”, only in revisions thereafter.

Position “aa” designate the turbine size and bearing system. “GTaa” is referred to as the “Base Model Number”.

Position “bb” designate the compressor wheel diameter in millimeters. Compressor wheels with diameters larger than 100 millimeters only the last two digits will be used.

Positions “cccc” may be used to designate special features of a particular turbocharger.

Not all four positions are required to be used.
Some of these designators are as follows:
“B” Boreless
“D” Dual Passage Bypass (Wastegate)
“F” Carbon Seal (Compressor Side)
“G” Compressor Recirculation Valve
“L” Water Cooled Center Housing
“N” Ported Shroud Compressor
“R” Ball Bearing
“S” Single Passage Bypass (Wastegate)
“V” Muti Vane Variable Geometry Turbine
“W” Water Cooled Turbine Housing

There are some exeptions but very few. Usually when the sizes or designators don't match up it means something has been either made purposely(ie optioned) that way or rebuilt with what was available. Hope that was informative to someone.
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