s52 obd1 zf + 4.10 lsd anyone?

[vitiokas95]

I am about to start my S50 swap and would like your recommendation if I should keep 4.10 or put 3.25 that I bought as my swap part. My e30 will only be used on track and nowhere else.

[M-technik-3]

No mention of transmission type. Build for a class legal or just DE day's. Ours is built as a crap can car. We run it ragged.

[vitiokas95]

No mention of transmission type. Build for a class legal or just DE day's. Ours is built as a crap can car. We run it ragged.

Transmission from '95 M3. Just for DE day's.

[agent]

Looks like I'm going with 3.15 for now

A 3.15 on 16s is just about perfect for mostly street/occasional AutoX use.

[e30rapidic]

1st and 2nd gear with a 4.10 with zf trans will be pretty much useless.

I suppose it depends on your track and the top speed you aiming for really.

[Wanganstyle]

1st and 2nd gear with a 4.10 with zf trans will be pretty much useless.

I suppose it depends on your track and the top speed you aiming for really.

Depends on your traction situation; 2nd is useful if needed.

Not sure anyone uses 1st gear on the track besides for pit row.

4.10 is good on sonoma raceway (215/45/17) @7500rpm

3.91 is good for thunder hill.

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[matthugie]

The 3.25 will be a good ratio, but the diff isn't plug and play from e36 to e30 unless it came from an M coupe or roadster.

[vitiokas95]

I bought rear diff cover from M coupe.

[Roysneon]

I have a zf310 and 3.73 lsd in my daily driver. Could be better but I can live with it daily. A track car should be fine with the 4.1 as long as you don't run out of gear/top speed at the bigger tracks.

[M-technik-3]

The 3.25 will be a good ratio, but the diff isn't plug and play from e36 to e30 unless it came from an M coupe or roadster.

3.25 lsd from an E28 problem solved.

[OldsCool]

this will be a useless but kind of fun setup, i had a ZF trans with a 4.10lsd with a m50nv. topspeed was like 180kmh(110mph).
1gear is useless, but to be honest i had some pretty decent starts with it from a dig
2-3gear is what you will be using for starts

the biggest problem is, when its wet the car will be some sort of axe swinging maniac
it happend once to me, i was in 5th gear driving like 25mph, stepped on the gas and the car came sideways on a slightly wet road. its fun if you await something like that, but driving in traffic needs your full concentration.

find another solution if you don't want smoking tires and driving sideways in wanted an unwanted situations.

i think something in the 3.25-3.46 range would be perfectly fine

[MyE30]

having both a 2.93 and 4.10 would be good if you DD and track the car and don't mind swapping diffs from time to time. obviously, the 2.93 for DD. i bet the 4.10 would be nice at small tracks like buttonwillow, willow springs, roebling, and sebring. it would probably close on the straights at VIR and road atlanta and the oval at autoclub though.

tire and wheel diameter would play a role in this as well. i like to run close to the size the manufacture intended for the transmission i'm using then go from there.

[Wanganstyle]

having both a 2.93 and 4.10 would be good if you DD and track the car and don't mind swapping diffs from time to time. obviously, the 2.93 for DD. i bet the 4.10 would be nice at small tracks like buttonwillow, willow springs, roebling, and sebring. it would probably close on the straights at VIR and road atlanta and the oval at autoclub though.

tire and wheel diameter would play a role in this as well. i like to run close to the size the manufacture intended for the transmission i'm using then go from there.

4.10 is great for sears point and Buttonwillow. Sears and button willow could possibly use a 4.27

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[Wasefi]

I bought rear diff cover from M coupe.

Hey where did you buy the diff cover from and how much was it??

[e30style]

3.73 for daily driving was pretty annoying for me, went to a 2.93 which is much better, but I'm currently looking for a 3.25 which i think will be perfect