Original thread here : https://honda-tech.com/zerothread/1781541

Well I've been checking in with my local JDM Parts/Engine supplier weekly and finally after 6 months of waiting a very new S20 LSD Transmission came in with a D15B. So I bought the tranny to put into my 98 hatch, but I had some questions for some of the tech savvy types who know the tranny.

What kind of fluid do I use? It doesn't appear to have a sealed diff housing so I would assume that the transmission fluid is shared with the diff and if thats the case then I would assume it's a helical type LSD which would use the standard 10W-30 or Honda MTF. I know with Viscous types of diffs they require a much heavier weight oil. I'm also assuming because the Type-R's use Helical LSD that this would be the same. Input???

Also I'm assuming that the Vehicle Speed Sensor is the same between my EK and this S20 so I was going to use the one currently in the transmission. Safe Assumption???

Thanks!

 

can you tell me the name of the place were you bought the tranny. if you to the Honda dealeship the have tranny fluid for LSD transmission.

 

everything is the same.

same oil, same vss.

 

Just to ease your fluid fears I run Honda MTF if my ITR trans with zero problems.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">Just to ease your fluid fears I run Honda MTF if my ITR trans with zero problems.

</TD></TR></TABLE>

I figured that the standard Honda MTF would work considering it's a standard S20 with the exception of LSD, but there have been some comments that this was believed to be a Viscous type and not the Helical LSD. My ITR tranny in my DelSol uses the standard Honda MTF but thats because it's a Helical type. There just seems to be very little info on these D series LSD trannys. I just want to be 100% sure considering the rarity of this tranny, didn't want to cook it right away.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Scracho &raquo;</TD></TR><TR><TD CLASS="quote">I figured that the standard Honda MTF would work considering it's a standard S20 with the exception of LSD, but there have been some comments that this was believed to be a Viscous type and not the Helical LSD. My ITR tranny in my DelSol uses the standard Honda MTF but thats because it's a Helical type. There just seems to be very little info on these D series LSD trannys. I just want to be 100% sure considering the rarity of this tranny, didn't want to cook it right away. </TD></TR></TABLE>

it's nto a clutch based LSD. i'm 90% sure that it's the same style as the ITR one, in that it's 1-way ACELL only LSD.

Fill it through the VSS or reverse light indicator so you can stuff 2qts in it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bense &raquo;</TD></TR><TR><TD CLASS="quote">

it's nto a clutch based LSD. i'm 90% sure that it's the same style as the ITR one, in that it's 1-way ACELL only LSD.

Fill it through the VSS or reverse light indicator so you can stuff 2qts in it.</TD></TR></TABLE>

Thanks Bense! I spoke with one of the techs yesterday about the tranny and apparently he has a UK service manual at home and he's almost certain it has the specs in the manual. I'm pretty certain it's a gear type LSD, but I would like to end this debate once and for all!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Scracho &raquo;</TD></TR><TR><TD CLASS="quote">

Thanks Bense! I spoke with one of the techs yesterday about the tranny and apparently he has a UK service manual at home and he's almost certain it has the specs in the manual. I'm pretty certain it's a gear type LSD, but I would like to end this debate once and for all! </TD></TR></TABLE>

Woh! I was wrong! According to my tech's service manual it's a Viscous 1 way LSD. Recommended transmission fluid is 10W40. Apparently Helical LSD weren't an option until 1996 in the ITR and CTR.