Hi guys. Just wondering if anyone has any info on the JDM LSDs. I've got a 1992 JDM VTEC Prelude which is equiped with the factory LSD. Couple of things I'd like to know: What oil should I be using in the transmission and what type of LSD it is?
If anyone could help out with this info, I'd be most grateful.
My car has a sticker inside one of the doors, on the body, that says Si VTEC LSD. That gave me some suspicions to begin with. I confirmed it (hopefully) by jacking the car up and turning a front wheel. The other wheel turns the same way. I believe that with an open diff, you'll find that the other wheel turns the opposite way.
I've only just found this out and have recently changed the gearbox oil so I'm kinda desperate to find out what I should have put in it. I've got 10/40 in there at the mo and it hasn't started crunching, yet!
Any of the UK JDM VTEC guys out there got any clues?
I always recommend Honda Brand MTF. When I worked for Honda we actually linked the use of other oil to problems with the tranny. Synchros were wearing out. The Honda MTF is formulated especially for the Honda tranny. I don't recommend using Honda stuff for all fluids, but for the Power steering and MTF, that is all the is supposed to be used.
Originally posted by NOSlude ok, now i have the JDM motor as well.. how can u tell if u have the LSD in it? is there a way to test it easy...
the easiest way i can think of is just to do a quick burn out. just rev the car high, drop the clutch & let the tires spin for a sec. then drive around and look at the rubber patch that you left. if only one tire left a patch, then you don't have a lsd. if it's both tires, then you have a lsd.
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Originally Posted by ExodusFX
It doesn't matter what kind of icecream you get in Mochi. Why? Because Mochi is icecream wrapped in awesome.
There are 2 things that you can do to see if you have an LSD in the tranny. One is to put it up on jack stands, and spin the tire. If the other tire spins in the same direction you are LSD equipped. Also, most factory Honda trannies with LSD's are marked with a white dot on the Bell housing. The thing with the burn out isn't exactly accurate. You will only spin one wheel if the other wheel loses traction. If they are both gripping equally they will both spin.
Thanks for the help, Dr James. Are you saying, then, that standard Honda transmissions use the same oil as the LSD equiped ones? I was under the impression that a different grade oil is usually needed when an LSD is fitted. Is this just me getting my wires crossed?
You can test to see if you have an LSD by using it like it was designed for.
Turn you wheels all the way to one side, then dump the clutch and burnout, with a non-LSD, only the inside wheel will spin, but if you have an LSD, it will lock your diff and both wheels will spin even tho your turning.
LSD's were designed to give equal power to both wheels regardless if one has more traction then the other.
Originally posted by Absolut LSD's were designed to give equal power to both wheels regardless if one has more traction then the other.
I'm bringing this back from the dead to find out what kind of LSD Honda used: Clutch type or Helical?
And is the statement above true? My understanding was that Quaffe style give power to the wheel the has the most grip not simply to give equal or locked diferential characteristics.
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