From what I have collected, all pre 92 B trannies (JDM 88-91) are notorious for being weaker... The diffs apparantly always go on them when racing.

I have a J1 tranny and need LSD, and am wondering how the OEM LSD units hold up to abuse.. I realize quaife is the best, but my question is, are the OEM LSD's from this tranny strong enough for some 200whp launches and driving?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg92 &raquo;</TD></TR><TR><TD CLASS="quote">From what I have collected, all pre 92 B trannies (JDM 88-91) are notorious for being weaker... The diffs apparantly always go on them when racing.

I have a J1 tranny and need LSD, and am wondering how the OEM LSD units hold up to abuse.. I realize quaife is the best, but my question is, are the OEM LSD's from this tranny strong enough for some 200whp launches and driving?</TD></TR></TABLE>

the j1/s1 did not come with the lsd option, only the y1 came with that option(on the small shaft trannies) as well as the ys1(big shaft)! i would tell you to get a quaife lsd!

 

I know the J1 did not come with it, thats why my thread says Y1. I am just considering buying a Y1 and using the tranny since I know the condition of my tranny and I already have an LS 5th swapped in.

Do you have any experience with the LSD from the small shaft trannies or should I stay the hell away from them even with a quaife?

 

word of advice ........ CRAP!!!!!!!
they are really weak. We broke one in the Burnout box in Vegas.

US YS1 with aftermarket LSD

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thegrinch &raquo;</TD></TR><TR><TD CLASS="quote">word of advice ........ CRAP!!!!!!!
they are really weak. We broke one in the Burnout box in Vegas.

US YS1 with aftermarket LSD</TD></TR></TABLE>
not only are they crap(reliability problems), where are you going to buy replacement parts for your jdm trannie! sell that Y1, and get a usdm or a jdm gsr ys1! i hope that clears it up for you

 

So a JDM GSR ys1 with a factory LSD is a good setup. If so what kind of hp can you put down with slicks?

 

i have yet to run with slicks, but the last time i dynoed i was at 182WHP and the ITR lsd has yet to complain

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teg92 &raquo;</TD></TR><TR><TD CLASS="quote">I know the J1 did not come with it, thats why my thread says Y1. I am just considering buying a Y1 and using the tranny since I know the condition of my tranny and I already have an LS 5th swapped in.
</TD></TR></TABLE>

hmmm stupid question. why did you put an LS 5th on your J1? im guessing for freeway driving?

 

anyone boostin with a cable tranny? what tranny/setup are you using?

 

The factory viscous LSD's fail at about the 230~240whp range.

 

Does anyone know of an article ont he difference between the big and small transmission.

I bought my swap from my work, Japan Direct, http://www.usedengine.com and it had a lsd trans but there is not a tag on so i have no idea what trans that i have. There has been some apparent work done to the set up(toda flywheel, spoon clutch, oil temp guage, oil pressure gauge) and some other stuff. So i am not sure what transmission i have. Was hoping for some help.