Limited Slip Diffs

Psycho_Dad · Post by **Psycho_Dad** » Fri Dec 07, 2007 5:46 pm

well i think i should have a late model 1.6 torsen diff sussed, well its a 1.6 but it has the same rubbers as the 1.8... ?
all i need to find the guy is a good nonlsd replacement from a lateish model car?
any ideas where i could find one of these? im sure alot of poeple here have em sitting in their garage... waiting to be donated to a suitable project

cheers
Sam

SLYDIT · Post by **SLYDIT** » Fri Dec 07, 2007 7:18 pm

if your planning on thrashing your car DO NOT get a 1600 diff of any type.....they are only 6" diffs and are pretty weak.
You need to get an 1800 diff and shafts, as the 1800 is a 7" diff and is much stronger....There is no such thing as a 1600 torsen diff..the 1600 LSD's are viscous..

the torsen is only available in 7" 1800 size

you can also fill an 1800 housing with a series 4 or 5 RX7 clutch type LSD .

Psycho_Dad · Post by **Psycho_Dad** » Fri Dec 07, 2007 8:54 pm

well if a diff in a 1997 1.6 has rubber dampers on it, does that make it a torsen or a viscous?

cheers
Psycho_Dad

Post by **zorruno** » Fri Dec 07, 2007 10:11 pm

Split this topic out from the recent chat topic 'im new, welcome me please'. It is useful info... please start new threads/subjects with new topics.

Post by **jif** » Fri Dec 07, 2007 10:41 pm

http://members.aol.com/solomiata/MiataVLSD.html :]

Post by **jif** » Sat Dec 08, 2007 12:39 am

last one

http://www.miata.net/garage/diffguide/index.html

hadn't heard of the damper thingy before!

SLYDIT · Post by **SLYDIT** » Sat Dec 08, 2007 8:59 am

Well if its out of a 97 1600 then id bet its not an LSD at all...the 1600 engine package in the post '92 cars was a low spec model so id be very very suprised if the low spec car had been fitted with an LSD.

Psycho_Dad · Post by **Psycho_Dad** » Sun Dec 09, 2007 8:57 am

well in the diffguide that jif just showed us, it shows a 1.8 diff with a rubber damper on it, indicating its a torsen lsd

the 1.6 i was looking at has the exact same rubber damper on it

does this make it a torsen lsd?

cheers
Psycho_Dad

Post by **jif** » Sun Dec 09, 2007 9:40 am

you want to be seeing the helical gears inside -->

(this is pic2 from the diff guide URL)

Psycho_Dad · Post by **Psycho_Dad** » Sun Dec 09, 2007 10:01 am

god damn it so i gotta pull the thing out... grrr was hopeing that rubber damper was enough of an indicator

might call mazda with the numbers see what was fitted factory

cheers
Psycho_Dad

Post by **jif** » Sun Dec 09, 2007 10:12 am

look at pic 6 (spider gear) ... if you see that, it's an open diff ...

poison · Post by **poison** » Sun Dec 09, 2007 11:31 am

You can "Just" see through the oil filler hole with the car jacked up and a small torch. 15-30mins screwing round trying to see through the hole is better than pulling it out. Jif and Slydit are the Diff guru's here.

MN · Post by MN » Wed Dec 12, 2007 7:52 pm

SLYDIT wrote:if your planning on thrashing your car DO NOT get a 1600 diff of any type.....they are only 6" diffs and are pretty weak.

Ah NO. Having rallied and raced my 1600 for 4 years now where its had a pretty good hammering, the standard diff is absolutely fine. However I agree I wouldn't replace it with another when it goes always better to step up.

SLYDIT · Post by **SLYDIT** » Thu Dec 13, 2007 7:15 am

[quote="MN
Ah NO. Having rallied and raced my 1600 for 4 years now where its had a pretty good hammering, the standard diff is absolutely fine. [/quote]

there are a few who would disagree on that....up the power and add sticky tyres and that 6" diff is on borowed time..it it false economy to replace a 6" diff with another if you plan to give it heaps.