3.25LSD or 2.93LSD - What do you recommend for daily driving?

[dude8383]

So here's what I found. This info is based on the tranny that I'm running which is the Getrag 250.

Site that I used:

http://www.geocities.com/Z_design_studio/

Gear Ratio's for the Getrag 250.

1st: 4.23
2nd: 2.52
3rd: 1.66
4th: 1.22
5th: 1.00

6500 rpm redline

205/50 16 tires

*5th Gear as reference gear*

With 3.25 LSD:

@ 65 - 2941 rpm
@ 85 - 3853 rpm

With 2.93 LSD:

@ 65 - 2676 rpm
@ 85 - 3471 rpm


The numbers a pretty accurate for the 3.25LSD...

What do you guys think? I would probably keep the 3.25 for fun but run a 2.93 for daily use.

[devonjordan]

I would keep the 3.25 all the time, never know when you are going to have to just up and blast out of the way of someone, LOL.

[matt]

3.25 all the way.

[dpgrand]

3.25 - its fun, without being TOO extreme

[e30s52]

3.46 lsd but if you cant get your hands on that then get a 3.25 lsd

[1990m3]

3.25 -- no question

[dude8383]

fuck my tach must really be off then.

i need to check if the coding plug is actually from a 325i.

[bmws50b30]

dennis

http://www.r3vlimited.com/board/showthread.php?t=123277

[Uber E30]

a 3.25/zf will be inline with a 4.10/g260. I daily a 4.10/g260 and im not a fan. My swap will have a 2.93, screw reving 3.6k to go 75.

[daniel]

i have a 3.25 diff with a zf320 right now. i do pretty much all my driving in the city, but when im on the highway i wish i had the 2.93. the car would be a bit slower but its already fast as hell, so i don't think it would bother me that much.

[dude8383]

I think I might stick with the 3.25 for now. The tach is now accurate and the mileage is actually pretty good.

I'm getting nearly the same mileage I was getting in the 318is, but I have been abusing this thing :) I think the mileage will only get better when I drive it easy.

For reference with the 318is I would get about 250 miles on avg, that is combined city and hwy.

With the stroked m50 I went about 220 miles with lots of abuse...I'm impressed!

[e30polak]

I think I might stick with the 3.25 for now. The tach is now accurate and the mileage is actually pretty good.

I'm getting nearly the same mileage I was getting in the 318is, but I have been abusing this thing :) I think the mileage will only get better when I drive it easy.

For reference with the 318is I would get about 250 miles on avg, that is combined city and hwy.

With the stroked m50 I went about 220 miles with lots of abuse...I'm impressed!

Damn your m42 got horrible gas milage! :shock:

I get 250-270 with combined city and highway driving with my s52 and 3.25.

[dude8383]

Damn your m42 got horrible gas milage! :shock:

I get 250-270 with combined city and highway driving with my s52 and 3.25.

dude i live in brooklyn man...

on the weekends when i drove out to long island i would regularly see 290 miles to the tank.

oh, and i did mention that i went 220 miles to the tank WITH abuse :)

the mileage should definitely go up.

[devonjordan]

dude i live in brooklyn man...

on the weekends when i drove out to long island i would regularly see 290 miles to the tank.

oh, and i did mention that i went 220 miles to the tank WITH abuse :)

the mileage should definitely go up.

This has always surprised me, with all the stuff I've sent to you, that you actually have a car in brooklyn... Where do you go to play with your new motor?

[dude8383]

This has always surprised me, with all the stuff I've sent to you, that you actually have a car in brooklyn... Where do you go to play with your new motor?

long island.

i can't really open it up around here, the cops are on some serious smack down lately here...its crazy man.

on tuesday i counted 7 cops posted up waiting for someone to fly by, on the way home my boss told me there was an unmarked cop trying to race an accord, and another 5 or so hiding behind bushes!

some crazy shit is going down.