2JZ Swap on a UZS Chassis?
#16
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Not sure what you are referring to when you say sharpen the gain. Personally the 3.23 rear gear should give a lot better fuel economy but with the stock twins it still might feel sluggish. If you can't get your hands on a gs300 4.27 gearing, the sc400 has a 3.91 gearing that works very well with the aristo 4 speed trans. The 4.27 gearing makes the car shift way too soon and the car will get terrible fuel economy.
#17
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Not sure what you are referring to when you say sharpen the gain. Personally the 3.23 rear gear should give a lot better fuel economy but with the stock twins it still might feel sluggish. If you can't get your hands on a gs300 4.27 gearing, the sc400 has a 3.91 gearing that works very well with the aristo 4 speed trans. The 4.27 gearing makes the car shift way too soon and the car will get terrible fuel economy.
#18
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Not sure what you are referring to when you say sharpen the gain. Personally the 3.23 rear gear should give a lot better fuel economy but with the stock twins it still might feel sluggish. If you can't get your hands on a gs300 4.27 gearing, the sc400 has a 3.91 gearing that works very well with the aristo 4 speed trans. The 4.27 gearing makes the car shift way too soon and the car will get terrible fuel economy.
The 3.9x does fine with the aristo trans. It's a marginal difference from the stock aristo 3.76..
#19
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My bad dude, just did a quick search and through it up. Thanks for posting the correct ratio.
Last edited by supra1; 02-13-12 at 07:05 PM.
#20
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SupraForums has a wealth of information but is not the definitive resource for the GS300. Keep in mind a ton of all the various forums dedicated to the Supra have large amounts of information and members that have been compiled from European countries which mingles specs within the searchable information available.
The 3.615 gear set you speak of is what came in the UK/GCC/EUR GS300's, the USDM, Australian, and JDM S300 versions came with the 3.917.
Once you buy a GS300, take the rear diff cover off and count the teeth to see for yourself what many other members and myself have seen in person when taking these pumpkins out, instead of speculating off information taken from another forum.
NORTH AMERICAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑80029 JZS160, *FGR=47:12=3.917 (08/1997-12/2004)
EUROPEAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑49125 JZS160..EUR, GCC, *FGR=47:13=3.615 (08/1997 - 12/2004)
The 3.615 gear set you speak of is what came in the UK/GCC/EUR GS300's, the USDM, Australian, and JDM S300 versions came with the 3.917.
Once you buy a GS300, take the rear diff cover off and count the teeth to see for yourself what many other members and myself have seen in person when taking these pumpkins out, instead of speculating off information taken from another forum.
NORTH AMERICAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑80029 JZS160, *FGR=47:12=3.917 (08/1997-12/2004)
EUROPEAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑49125 JZS160..EUR, GCC, *FGR=47:13=3.615 (08/1997 - 12/2004)
Last edited by 99 GS3; 02-13-12 at 06:23 PM.
#21
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SupraForums has a wealth of information but is not the definitive resource for the GS300. Keep in mind a ton of all the various forums dedicated to the Supra have large amounts of information and members that have been compiled from European countries which mingles specs within the searchable information available.
The 3.615 gear set you speak of is what came in the UK/GCC/EUR GS300's, the USDM, Australian, and JDM S300 versions came with the 3.917.
Once you buy a GS300, take the rear diff cover off and count the teeth to see for yourself what many other members and myself have seen in person when taking these pumpkins out, instead of speculating off information taken from another forum.
NORTH AMERICAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑80029 JZS160, *FGR=47:12=3.917 (08/1997-12/2004)
EUROPEAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑49125 JZS160..EUR, GCC, *FGR=47:13=3.615 (08/1997 - 12/2004)
The 3.615 gear set you speak of is what came in the UK/GCC/EUR GS300's, the USDM, Australian, and JDM S300 versions came with the 3.917.
Once you buy a GS300, take the rear diff cover off and count the teeth to see for yourself what many other members and myself have seen in person when taking these pumpkins out, instead of speculating off information taken from another forum.
NORTH AMERICAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑80029 JZS160, *FGR=47:12=3.917 (08/1997-12/2004)
EUROPEAN
41201 FINAL GEAR KIT, DIFFERENTIAL, REAR
41201‑49125 JZS160..EUR, GCC, *FGR=47:13=3.615 (08/1997 - 12/2004)
I would rather just put a Supra auto rear diff in if I am doing a 2jzgte vvti swap. The supra auto and aristo all have the 3.76 rear gearing which is optimal for stock twin turbos. Thanks for posting the correct info though.
Do you have the 3.91 rear gearing in your swap? if so, how is the fuel economy? Does it shift fast?
#22
Lexus Champion
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3.266, it destroys a tank of gas in no time, and it shifts as fast as I can push the pedal and throw the lever.
#25
Thank you all for the useful information. Im picking up a complete Aristo swap when my returns arrive. I realize I will have to spend a little extra on the supporting mods like having a custom single piece drive shaft made unless an SC300 one will work for my W58. Also, I might have to run it on the GS430 cluster and differential until I can find some legit replacements. I'd rather replace the diffy with a Kazz LSD or a TT LSD. The cluster part I can deal with until I either get the Dakota calibrator or a replacement piece. About the gas mileage, Im not too worried about it. The 3UZ probably burns more than the 2JZ single turbo.
#29
Lexus Fanatic
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I mean, unless they are seriously driving like grandmas, coasting and employing hypermiling to the max...but even then I don't see how that's really possible to get 30mpg on a 2JZ.