I have a GSR and my trans is on it's way out. I want to buy an ITR trans and there's someone selling a CTR trans.

Anyone help me with the differences between the two in terms of ratio and how it'll mount up to a B18. If I'm not mistaken CTR's have B16's, yes?


Modified by November at 10:48 PM 11/13/2007

 

yes ctr is b16b and yes it will fit your gsr and yes you should get it

 

The Ratios are the same for the CTR and ITR 96 Spec/USDM
3.230 2.105 1.458 1.107 0.848 3.000 4.400

 

The ctr trans will be a better allmotor trans, expect about a 4500 4800 rpm at 50 mph... Not good on the gas mileage but great for going quick.

 

Any idea how much I should expect to pay for one? I've seen ITR LSD's go for 1300. Not having much luck finding one on the marketplace.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by silentrg03 &raquo;</TD></TR><TR><TD CLASS="quote">The Ratios are the same for the CTR and ITR 96 Spec/USDM
3.230 2.105 1.458 1.107 0.848 3.000 4.400 </TD></TR></TABLE>I thought the ITR/CTR trans were the same USDM or JDM except for the F/D. Am I incorrect on that?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ghettocrxsi &raquo;</TD></TR><TR><TD CLASS="quote">The ctr trans will be a better allmotor trans...</TD></TR></TABLE>

The CTR and ITR transmissions are the same in gearing, so this statement seems misleading to me.
Reference: ITR Gear Ratio
CTR & ITR Gear Ratios


OP: Len at Son's Acura can get you a brand new ITR transmission for around $1650:
http://www.sonsacuraparts.com/sons/jsp/home.jsp

Or, Call:
Len
770-968-5252

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HYREV2NR &raquo;</TD></TR><TR><TD CLASS="quote">I thought the ITR/CTR trans were the same USDM or JDM except for the F/D. Am I incorrect on that?</TD></TR></TABLE>

The 98 spec has a 4.785 FD and shares the same 4th and 5th gear as the GSR. So you don't turn 4500 rpm's doing 65 on the HWY.

 

So I'm guessing the 00/01 trannys have a different 4th & 5th?

 

USDM ITR 97-01 = JDM CTR EK9

 

USDM ITR & CTR
JDM ITR 98+

 

I know years ago I was planning on spending alot of $$ on gearing including the ATS 4.92 F/D. Then I got bit by boost. Looks like my USDM tranny will stay stock.

 

for what it's worth, I have a CTR tranny in my ITR. This is what I was told when I bought the car, and the code on the tranny matches what a CTR "should" have (then again, so does a standard B16 tranny) Mine DOES have the LSD also, so I assume it is legit. (short of tearing into it to count gear teeth)

anyway, when I go 75mph in 5th, I'm only at 4500 rpms.

 

If I'm not mistaken my ITR @ 80 MPH was spinning like 4K RPM's. Motor's been down for a while so I can't remember for sure.
If I were into the autocross thing I more than likely would have spent alot on gearing. I was always curious to know what my car would have run in the 1320 with an ATS 4.92 f/d. It's best times w/ just bolt-ons was like a 14.20 @ 98.6. Guess I'll never know.

 

I wouldn't need to get new axles, eh? This car eats my monies.

 

Don't forget, the CTR differential is heavier than ITR.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GO-FIGHT-KILL &raquo;</TD></TR><TR><TD CLASS="quote">Don't forget, the CTR differential is heavier than ITR.</TD></TR></TABLE>Why so?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HYREV2NR &raquo;</TD></TR><TR><TD CLASS="quote">Why so?
</TD></TR></TABLE>To compensate for the ITR being heavier than the CTR of course!

 

"I thought that what I'd do is that I'd pretend I was one of those deaf-mutes...

or should I?."


excellent laughing man quote

 

COMPARE FOR YOURSELF:

http://www.ff-squad.com/tech/temp/Bgears.htm

 

Does the 5th gear of the ITR/CTR@0.848 really make that big a difference over the %th of the GSR@0.787?

 

YES!