LSD standard or option on Z3 2.8?

[96cali]

I am just getting familiar with all the stats on 2.8 Z's and it seems like a 3.23 diff was standard but are more LSD or open? Is there a good website with lots of details on the different models, down to weights, brake diams, diff ratios, etc?

Thanks in advance!
Phil

[fmcfad01]

I think i've read that LSD's only came on M models...correct me if I'm wrong.

[ZZZING]

I think i've read that LSD's only came on M models...correct me if I'm wrong.

My 2.3 has LSD. Not sure about what other models have

[OUSHark]

I think i've read that LSD's only came on M models...correct me if I'm wrong.

Yep, your wrong. My 97 2.8l has the LSD, but I don't know if it was standard or an option.

[Matt Day]

standard in all 6cyl models

[fmcfad01]

standard in a 6cyl models

Ah, maybe thats what I should have remembered!

[DaneKane]

it wasn't an option and although some brochures mentioned it, LSD wasn't actually put into the schedule until late August 1997...leaving most '97's without...became standard on '98 2.8's...when confronted, dealers stated same song and dance which Z8's got when they discovered it missing from their rides as well: "electronic traction control is same thing"...so if anyone's '97 truly has LSD...very lucky indeed!...my '97 2.8 fully optioned, bought new,with a build date, of July, Z3#070XX..has an open diff(1428258/E8021J;3.15)...Z3 Cheers! dk

[Ghery]

I am just getting familiar with all the stats on 2.8 Z's and it seems like a 3.23 diff was standard but are more LSD or open? Is there a good website with lots of details on the different models, down to weights, brake diams, diff ratios, etc?

Thanks in advance!
Phil

Standard. 2.8 manuals had 3.15s, S52 Ms had 3.23s, S54s had 3.15s

[96cali]

Thanks for the info, yes the manual diff ratio is what I was missing. I'll look for a '98 +

[2kredz3]

wasnt there different models of LSD?

[bcausseaux]

My '99 2.8 coupe has an open diff

[JoshS]

My '99 2.8 coupe has an open diff

No it doesn't. It has a Torsen. Torsens behave just like an open diff in the simple "jack the rear up and spin" test.

[OUSHark]

it wasn't an option and although some brochures mentioned it, LSD wasn't actually put into the schedule until late August 1997...leaving most '97's without...became standard on '98 2.8's...when confronted, dealers stated same song and dance which Z8's got when they discovered it missing from their rides as well: "electronic traction control is same thing"...so if anyone's '97 truly has LSD...very lucky indeed!...my '97 2.8 fully optioned, bought new,with a build date, of July, Z3#070XX..has an open diff(1428258/E8021J;3.15)...Z3 Cheers! dk

I don't mean to argue with you, but I'm looking at the factory equipment list that came with my car and it lists both All Season Traction AND Limited-slip differential separately as standard equipment on my car. The build date on my car is 04/97. Are you saying that's not true?

[96cali]

so then traction control and LSD were available together? Interestingly the 318ti's were only offered with LSDs for one year until ASC+T was added though they work fine together.

[96cali]

No it doesn't. It has a Torsen. Torsens behave just like an open diff in the simple "jack the rear up and spin" test.

Then how do you inspect for LSD- look for a "S" tag on the diff itself?

[Codeman]

I don't know what mine had stock, the previous owner replaced it with an M3 diff. Oh how do I find out exactly what the ratio is on my diff?

[Z300991]

Which I removed and installed a 3.73 LSD from a E30.

And yes the 3.15 passed the spin test!

Regards
Alx

[jr1966]

standard in all 6cyl models

No it doesn't. It has a Torsen. Torsens behave just like an open diff in the simple "jack the rear up and spin" test.

Can anyone tell me what I have in my 2001 3.0 Coupe? LSD? Torsen? What ratio?

And can I get LSDs from 6-cyl models or from other chassis and install in my soon-to-be DASC'd M44 Z3?