gt4094r
02-05-10, 03:21 PM
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gt4094r
I am thinking of buying a gt4094r that a buddy of mine has. It has a 1.01 hot ar and my engine has a pretty agressive street port. Any opinions on this turbo for this engine?
02-05-10, 03:24 PM
#2
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That is a great combination, specially if your engine has a good street/race port. Easy 500whp setup and the spool will be comparable to a GT35R on a stock port engine.
I say go for it.
Chris
I say go for it.
Chris
Last edited by mar3; 08-22-10 at 02:49 PM. Reason: Killd quote since reply was back-to-back to post in question...
02-05-10, 03:54 PM
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As my luck goes he just sold the gt4094r, but has a couple of gt4088r's with .96 hot ar. Any body want to try and talk me out of buying one of these. He has them for 1200. Thats a few hundred cheaper than rx7store.
02-05-10, 04:07 PM
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http://www.turbobygarrett.com/turbob...ochargers.html
I ordered my GTXR turbo from Garrett. Can't wait to slap it on the dyno. You may want to consider one of these. Mine is the 71mm GT42 which will spool faster the 74mm compressor I have now and is supposed to make the same, if not more power.
I ordered my GTXR turbo from Garrett. Can't wait to slap it on the dyno. You may want to consider one of these. Mine is the 71mm GT42 which will spool faster the 74mm compressor I have now and is supposed to make the same, if not more power.
02-05-10, 06:39 PM
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GTX4294R! Good spool, larger hotside, and enough air for 700+whp.
Or look at the Precision Billet turbos, the billet 62mm is enough for over 500whp I imagine.
Or look at the Precision Billet turbos, the billet 62mm is enough for over 500whp I imagine.
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02-05-10, 07:14 PM
#8
it really depends what you want to do with the car to be honest. i got a gt4088r with a .96 hotside just waiting for me to get off my a** and tune it already. i didn't think i needed the 4094 for what i wanted to do. if you're new to rotary's, search the single section and there's tons of great info for what you need to think about.
02-05-10, 07:49 PM
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For 1200 its a great deal, short of switching companies to BW you will not get a better price I don't think.
Chris
02-05-10, 07:57 PM
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Thanks for all the inputs. I want 500+ and its not a daily driver, but I do want to have something I can drive around for a few hours if I feel like it also. I thought about the 4294r T4 flange, but was afraid it would be to laggy if you will for the street. I am new to rotarys but not turbos. If the gt4088 would make over 500 I would probably go with that.
02-05-10, 08:04 PM
#11
Rotary Enthusiast
The GT4088 can definitely supply the air for more than 500. People with GT35R's have hit that mark before so it wont be a problem...of course with the proper fuel system and tuning, otherwise it will dis-assemble your engine like any other mod that is done un-supported.
Chris
Chris
Last edited by mar3; 08-22-10 at 02:50 PM. Reason: Killd quote since reply was back-to-back to post in question...
02-05-10, 08:07 PM
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the 4088 likely would not make much more than 500whp, it doesn't have much more in it than a 35R, but it has a broader compressor map. If you ever plan on going over 500, go with the 4094R, or if you can spend the money, the GTX (billet) 4294R, which will have near the same spool as the 4094R, but with a lot more room to grow.
Like anything else, it's going to come down to budget and goals.
Like anything else, it's going to come down to budget and goals.
02-05-10, 09:53 PM
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I see some mixed reviews on the hot side ar. 1.01 or .96? I think I am going to go with the 4294r just need a little more input. Thanks for all of your help thus far.
02-05-10, 09:55 PM
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If your going with the Garrett billet wheel, whatever hot side you currently have you'd want a bit bigger. It flows 10% more so you'll need to get a larger a/r. I went smaller compressor so I stayed with the same 1.01
02-06-10, 08:12 AM
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"I want 500+ and its not a daily driver, but I do want to have something I can drive around for a few hours if I feel like"
500+ means you are looking for 66 pounds per minute or better.
the GT4094 and GT42XX make 80 or more pounds per minute and as such are too big for your needs. unless you decide you want 600 or more rwhp they are not your turbos.
there are a number of options in the 67 mm size group:
Garrett TO4Z............................ 73 pounds
A-Spec GT500........................... 73 pounds
Precision PT67...........................73 pounds
Borg Warner 62.9 X 88............. 75 pounds
GT3788r.....................................68 pounds
the GT40 group
GT4088.....................................72 pounds
Gt4088r.....................................68 pounds
another factor besides air capacity is hot side size which is important. ideally you want a hotside wheel near the cold side areawise... rotaries create more exhaust flow per hp than piston engines.
here are the above turbos with average wheel sq inch area:
...............................cold............... ..................hot...............%
TO4Z......................7.002................... ..........5.89..............84
GT-500...................7.002....................... ........5.89............84
PT67......................7.002................... .............5.89............84
BW.........................7.12................... ...............6.589.........96
GT3788r.................7.155..................... ...........5.694.........80
GT4088..................7.26...................... .............6.633........91
GT4088r.................7.167..................... ............6.423.........89
any of the above turbos would work well for you.
howard
500+ means you are looking for 66 pounds per minute or better.
the GT4094 and GT42XX make 80 or more pounds per minute and as such are too big for your needs. unless you decide you want 600 or more rwhp they are not your turbos.
there are a number of options in the 67 mm size group:
Garrett TO4Z............................ 73 pounds
A-Spec GT500........................... 73 pounds
Precision PT67...........................73 pounds
Borg Warner 62.9 X 88............. 75 pounds
GT3788r.....................................68 pounds
the GT40 group
GT4088.....................................72 pounds
Gt4088r.....................................68 pounds
another factor besides air capacity is hot side size which is important. ideally you want a hotside wheel near the cold side areawise... rotaries create more exhaust flow per hp than piston engines.
here are the above turbos with average wheel sq inch area:
...............................cold............... ..................hot...............%
TO4Z......................7.002................... ..........5.89..............84
GT-500...................7.002....................... ........5.89............84
PT67......................7.002................... .............5.89............84
BW.........................7.12................... ...............6.589.........96
GT3788r.................7.155..................... ...........5.694.........80
GT4088..................7.26...................... .............6.633........91
GT4088r.................7.167..................... ............6.423.........89
any of the above turbos would work well for you.
howard
02-06-10, 06:49 PM
#19
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"I want 500+ and its not a daily driver, but I do want to have something I can drive around for a few hours if I feel like"
500+ means you are looking for 66 pounds per minute or better.
the GT4094 and GT42XX make 80 or more pounds per minute and as such are too big for your needs. unless you decide you want 600 or more rwhp they are not your turbos.
there are a number of options in the 67 mm size group:
Garrett TO4Z............................ 73 pounds
A-Spec GT500........................... 73 pounds
Precision PT67...........................73 pounds
Borg Warner 62.9 X 88............. 75 pounds
GT3788r.....................................68 pounds
the GT40 group
GT4088.....................................72 pounds
Gt4088r.....................................68 pounds
another factor besides air capacity is hot side size which is important. ideally you want a hotside wheel near the cold side areawise... rotaries create more exhaust flow per hp than piston engines.
here are the above turbos with average wheel sq inch area:
...............................cold............... ..................hot...............%
TO4Z......................7.002................... ..........5.89..............84
GT-500...................7.002....................... ........5.89............84
PT67......................7.002................... .............5.89............84
BW.........................7.12................... ...............6.589.........96
GT3788r.................7.155..................... ...........5.694.........80
GT4088..................7.26...................... .............6.633........91
GT4088r.................7.167..................... ............6.423.........89
any of the above turbos would work well for you.
howard
500+ means you are looking for 66 pounds per minute or better.
the GT4094 and GT42XX make 80 or more pounds per minute and as such are too big for your needs. unless you decide you want 600 or more rwhp they are not your turbos.
there are a number of options in the 67 mm size group:
Garrett TO4Z............................ 73 pounds
A-Spec GT500........................... 73 pounds
Precision PT67...........................73 pounds
Borg Warner 62.9 X 88............. 75 pounds
GT3788r.....................................68 pounds
the GT40 group
GT4088.....................................72 pounds
Gt4088r.....................................68 pounds
another factor besides air capacity is hot side size which is important. ideally you want a hotside wheel near the cold side areawise... rotaries create more exhaust flow per hp than piston engines.
here are the above turbos with average wheel sq inch area:
...............................cold............... ..................hot...............%
TO4Z......................7.002................... ..........5.89..............84
GT-500...................7.002....................... ........5.89............84
PT67......................7.002................... .............5.89............84
BW.........................7.12................... ...............6.589.........96
GT3788r.................7.155..................... ...........5.694.........80
GT4088..................7.26...................... .............6.633........91
GT4088r.................7.167..................... ............6.423.........89
any of the above turbos would work well for you.
howard
Chris
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