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BrowNKiD · 01-03-2005, 03:52 PM

Is there any difference between an USDM and a JDM itr tranny? Arent the gear ratios the same? Wat, if any is the benifit of the JDM tranny over the USDM tranny.

Calesta · 01-03-2005, 04:23 PM

The major difference is the final drive. The USDM ITR has a final drive ratio of 4.4:1, while the JDM ITR transmission has a final drive ratio of 4.785:1.

JDMilan · 01-03-2005, 09:34 PM

usually the final, specifically what calesta said. but also the motors tend to have lower mileage and higher compression. Which is good.

Calesta · 01-04-2005, 08:28 AM

Well, he was just asking about the transmissions.

JDMilan · 01-04-2005, 12:17 PM

So - I gave him some more info

Calesta · 01-04-2005, 12:27 PM

BrowNKiD · 01-04-2005, 03:06 PM

thx guys... for the info on the motor... which tranny is better usdm or jdm? for drag racing

Calesta · 01-04-2005, 03:46 PM

The JDM ITR will give you the best acceleration, but you'll want to pick the transmission that allows you to reach the end of 4th gear by the end of the strip. If you're running a beefed up B block that will require you to shift to 5th before you run through the 1/4 mile, you might want to go with the USDM ITR. Of course, you can always fix that problem with taller tires....

How much money are you willing to spend? If you're going all out, get the JDM ITR and run taller slicks to get your final gearing right.

BrowNKiD · 01-04-2005, 09:45 PM

well im tryin to get the best bang for the buck.... and i was told that the jdm tranny wont fit in an eg? one again thx a lot for the help

Calesta · 01-04-2005, 09:54 PM

The JDM ITR transmission fits the exact same as the USDM ITR transmission. All FWD B series transmissions bolt up the same way (maybe not the B20A).

BrowNKiD · 01-05-2005, 03:30 PM

i was told that "also depending if you got a JDM/USDM motor, the JDM motors axles that come with the R motor wont fit, they are 36mm and you need 32mm "

01-04-2005, 03:46 PM	#8
Calesta Admin with a big stick Join Date: Sep 2002 Location: Dallas / Fort Worth, TX Age: 32 Posts: 25,344 iTrader: 0 / 0% Ride: 2003 S2000 Rep Power: 379	The JDM ITR will give you the best acceleration, but you'll want to pick the transmission that allows you to reach the end of 4th gear by the end of the strip. If you're running a beefed up B block that will require you to shift to 5th before you run through the 1/4 mile, you might want to go with the USDM ITR. Of course, you can always fix that problem with taller tires.... How much money are you willing to spend? If you're going all out, get the JDM ITR and run taller slicks to get your final gearing right. __________________ DO NOT PM me with tech questions! Use the forums! Intercrew Auto Salon - (972) 485-8688


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01-03-2005, 03:52 PM	#1
BrowNKiD Member Join Date: Jul 2004 Location: Toronto, Ontario, Canada Posts: 69 iTrader: 0 / 0% Rep Power: 12	Is there any difference between an USDM and a JDM itr tranny? Arent the gear ratios the same? Wat, if any is the benifit of the JDM tranny over the USDM tranny.

01-03-2005, 04:23 PM	#2
Calesta Admin with a big stick Join Date: Sep 2002 Location: Dallas / Fort Worth, TX Age: 32 Posts: 25,344 iTrader: 0 / 0% Ride: 2003 S2000 Rep Power: 379	The major difference is the final drive. The USDM ITR has a final drive ratio of 4.4:1, while the JDM ITR transmission has a final drive ratio of 4.785:1.

01-03-2005, 09:34 PM	#3
JDMilan Senior Member Join Date: May 2003 Location: Boca Raton, FL Posts: 6,733 iTrader: 0 / 0% Rep Power: 81	usually the final, specifically what calesta said. but also the motors tend to have lower mileage and higher compression. Which is good.

01-04-2005, 08:28 AM	#4
Calesta Admin with a big stick Join Date: Sep 2002 Location: Dallas / Fort Worth, TX Age: 32 Posts: 25,344 iTrader: 0 / 0% Ride: 2003 S2000 Rep Power: 379	Well, he was just asking about the transmissions.

01-04-2005, 12:17 PM	#5
JDMilan Senior Member Join Date: May 2003 Location: Boca Raton, FL Posts: 6,733 iTrader: 0 / 0% Rep Power: 81	So - I gave him some more info

01-04-2005, 12:27 PM	#6
Calesta Admin with a big stick Join Date: Sep 2002 Location: Dallas / Fort Worth, TX Age: 32 Posts: 25,344 iTrader: 0 / 0% Ride: 2003 S2000 Rep Power: 379

01-04-2005, 03:06 PM	#7
BrowNKiD Member Join Date: Jul 2004 Location: Toronto, Ontario, Canada Posts: 69 iTrader: 0 / 0% Rep Power: 12	thx guys... for the info on the motor... which tranny is better usdm or jdm? for drag racing

01-04-2005, 09:45 PM	#9
BrowNKiD Member Join Date: Jul 2004 Location: Toronto, Ontario, Canada Posts: 69 iTrader: 0 / 0% Rep Power: 12	well im tryin to get the best bang for the buck.... and i was told that the jdm tranny wont fit in an eg? one again thx a lot for the help

01-04-2005, 09:54 PM	#10
Calesta Admin with a big stick Join Date: Sep 2002 Location: Dallas / Fort Worth, TX Age: 32 Posts: 25,344 iTrader: 0 / 0% Ride: 2003 S2000 Rep Power: 379	The JDM ITR transmission fits the exact same as the USDM ITR transmission. All FWD B series transmissions bolt up the same way (maybe not the B20A).

01-05-2005, 03:30 PM	#11
BrowNKiD Member Join Date: Jul 2004 Location: Toronto, Ontario, Canada Posts: 69 iTrader: 0 / 0% Rep Power: 12	i was told that "also depending if you got a JDM/USDM motor, the JDM motors axles that come with the R motor wont fit, they are 36mm and you need 32mm "

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JDM VS USDM