does anyone know if a Jap type -r fianl drive can work in a 90-93 LS tranny? and if so, what parts are needed for the conversion?

 

Well, correct me if I'm wrong here but:

You have a 90-93 LS, which is the B18A1 according to my Engine Specs chart that I have saved on my computer.
B17A1 USDM 92-93 GSR (160hp)
B18A1 USDM 90-91 LS/GS (130hp)
B18A1 USDM 92-93 LS/GS (140hp)

According to that, you have the YS1 tranny. The YS1 tranny has a 4.400 final drive. A JDM SiR-G (GSR) has a 4.400 final drive, as does the USDM GSR, USDM Type R, and JDM Civic Type R.

And according to my knowledge, the JDM Type R also has the 4.400 FD. Unless it's the 4.785, which is listed as B18C.

Well, sorry if I didn't provide any help, but those are some numbers to help you out.

I put a JDM ITR LSD in my 97 LS tranny, and I had to substitute a 4.400 GSR final drive for my 4.266 one.

Good luck.

EDIT: By the way, I heard that if you are doing any FD swap in an LS, to go with the 4.400 as the 4.785 and the higher 4.9something that Cusco offers is too much.


[Modified by shamoo, 1:46 PM 3/13/2002]

 

i've got a 92 LS and it appears to be a 4.266 FD

 

actually, the JDM 98 spec 4.7 FD will not bolt right in. Mods are definitely needed on this tranny hybrid. Dave in Japan knows of people who've done it over there and I think he has one of his own.

I know this though..
- Its best to have a YS1 as a base cable tranny for this hybrid (which you already have)
- extensive modifications (shaving) of the internal casing is needed to fit the 4.7fd's ring
- it's a pain in the *** and you'll be spending more $$ than you need, so you might want to think twice about doing this and possibly just ugrade your LS trannies 4.266 final drive to that of a 92-93 GSR's 4.40 final drive, perhaps.
- there's something else, but it's no clickin in thought right now..

...that's it from me..


[Modified by Katman, 12:32 PM 3/13/2002]

 

hey katman can you put a 92-93 gsr final drive in a y1 tranny???

 

I really just want to find someone who will sell me a complete 92-93 GSR tranny, local in Dallas, but I am just as much interested in the above mentioned tranny hybrid

 

as far as I know. NO, you can't, because all of the 92-93 cable tranny's internals are the same design as the 92-95 B16A hydro transmission. Not the exact gear ratios, but the actual internal design of the each counter and main gears, input shaft, ring, diff, etc.

The Y1/S1/J1 are all made on the same platform...but not on the same platform as the YS1 transmssions. YS1 transmissions are basically like a cable version of hydro b-series transmission.

got it ?

 

BTW, I have all of the GSR tranny parts that might be needed for the conversion.

 

92-93 GSR tranny parts right? if so, do you have the full blown 92-93 gsr tranny/casing as well ?

 

-zoomintegra

Its 4.400. All B-series manual transmissions have a 4.400 Final ..except 94' and up RS/LS/GS's, and the 98' and up JDM Type-R.

94' and up RS/LS/GS's have the 4.266 final
98' and up JDM Type-R have the 4.785


[Modified by Quick 200k Mile Motor, 3:54 AM 3/17/2002]

 

Need some help shamoo! I have an '95 LS tranny looking to upgrade but don't have the funds to spend for the ITR tranny or Y80 (GS-R). What year ITR did you get that LSD from? How much $$$ did you put in for LSD and final drive? So the GS-R final drive was required in order to have that LSd , correct? I'm planning to add ITR flywheel and pressure plate, is that kewl? Let me know

 

Information on swapping gears/final drives, etc:
http://www.g2ic.com/forums/showthread.php?s=&threadid=5525</a> http://www.g2ic.com/forums/showthread.php?s=&threadid=8973</A> http://www.g2ic.com/forums/showthrea...&threadid=5558 http://www.g2ic.com/forums/showthrea...&threadid=5414 <A HREF="http://www.g2ic.com/forums/showthread.php?s=&threadid=5032" TARGET="_blank">http://www.g2ic.com/forums/showthread.php?s=&threadid=5032 <A HREF="http://www.g2ic.com/forums/showthread.php?s=&threadid=1824" TARGET="_blank">http://www.g2ic.com/forums/showthread.php?s=&threadid=1824

Stock specs:
http://www.g2ic.com/specs.html

EDIT: This all pertains directly to the YS1 tranny and 90-93 ALL Integras.



[Modified by mojoGSR92, 6:45 PM 3/18/2002]

 

Okay, here's the deal guys. I dunno if you read my newest post about final drives and LSD's and whatnot in the tech forum.

Anyway, if anyone is planning to install any final drive or LSD from a Type R (JDM or USDM) into an LS tranny, be wary.

Not only do you need a final drive ring gear with a 4.400 ratio, BUT you need the entire countershaft of a GSR/Type R. Now I'm trying to find out, but I'm not 100% sure that LS gears will even fit on a GSR/Type R countershaft.

Trust me, it looks like it fits using the LS countershaft, but when you put the tranny housing on and snap in the C-slip, the differential is off center.


I'll keep you guys posted. In the meantime, I'm gonna read the links that mojoGSR92 posted.

EDIT: Just some FYI. The countershaft gear (idle gear) on an LS and GSR/Type R have the same number of teeth, but don't let that fool you into thinking you can use them interchangably. If you look closely, the teeth in the LS are set further out (the gear is thicker). Combine that with the fact that the 4.400 final drive ring gear is also about 0.5 -0.75mm larger center to center. The LS FD ring gear also has more teeth than the GSR/Type R one. 68 as opposed to 64. Once you put the tranny housing on, you'll see that the larger gears push the differential off center. It doesn't seal correctly.


[Modified by shamoo, 2:04 PM 3/19/2002]

 

How did you get to seal the tranny housing if the larger gears pushed off center?
Thanks for the reply again. Great info.

 

I have a YS1 gsr tranny for sale which I put together a few months back, has the 4.7 final drive and KAAZ LSD in it already ... email me privately and we can work out a price.

and 92+ can be converted, done it many times, just that the LS is harder.

Greg

 

No problem, dude.

I didn't.....that's why I found out I couldn't use the differential without also using the GSR countershaft. Just a GSR/Type R differential with the LS countershaft would cause it to be off-center and not seal properly. You can't drive it like that, the tranny housing doesn't even close properly.

I test fitted it with a GSR countershaft (with GSR gears) and JDM ITR LSD, with a GSR 4.400 final drive, and it fit perfectly.