318ti.org forum

Go Back   318ti.org forum > Garage > Track, Auto-X & Drag Racing

Notices

Track, Auto-X & Drag Racing Discuss "organized" racing, car set-ups, driving techniques, track tips, events, driving schools, maintenance and more.

.
» Recent Threads
1998 318ti Price Estimate
Yesterday 06:59 PM
Last post by mrueda16
Today 03:58 PM
6 Replies, 321 Views
E36 '95 318ti for sale...
06-04-2018 05:31 AM
Last post by joereeumd
Today 03:38 PM
1 Replies, 470 Views
Feeler: 98 318Ti Black M...
09-09-2017 03:57 AM
Last post by joereeumd
Today 03:37 PM
31 Replies, 10,230 Views
A 318ti like no one has...
04-25-2018 06:18 PM
Last post by Bud
Today 02:17 AM
5 Replies, 637 Views
No shift from 3rd to 2nd
Yesterday 04:54 PM
Last post by joe1602
Yesterday 04:54 PM
0 Replies, 134 Views
Jean's Turbo Build -...
08-18-2009 03:08 AM
Last post by Jean H.318TI
Yesterday 04:26 PM
525 Replies, 128,441 Views
File this under: "You're...
06-12-2018 07:23 PM
Last post by joe1602
Yesterday 02:09 AM
2 Replies, 332 Views
2.93 lsd with mroadster...
05-26-2014 08:47 PM
Last post by Breticus
06-17-2018 05:46 AM
1 Replies, 1,201 Views
Happy Birthday NYBmw96ti
06-17-2018 05:00 AM
Last post by 1996 328ti
06-17-2018 05:00 AM
0 Replies, 81 Views
Happy Birthday NYBmw96ti
06-17-2018 05:00 AM
Last post by 1996 328ti
06-17-2018 05:00 AM
0 Replies, 84 Views
Reply Share/Bookmark
 
Thread Tools Display Modes
Old 12-07-2016, 06:49 AM   #1
BlackBMWs
Senior Member
 
BlackBMWs's Avatar
 
Join Date: Feb 2012
Location: Sacramento, CA
Posts: 2,440
Vehicles
iTrader: (7)
Default Experiences with LSD Diff ratios for track S52

I'm seeking your experience and insights on what you have found effective for a track LSD ratio for a S52 swap. Reading and learning as much as possible.

I have I believe a 2.93 LSD on my S52 TI just now, and run a 3.45 LSD with my other TI with a M44 now. Figure I can still be quick and responsive with an E28 3.46 or lower the ratio for the S52 and get better top end on an E28 3.25.

Thoughts? Thanks!
__________________


1998 318ti Sport - "Cali" Schwartz II/Schwartz sport interior, Cali top
1998 318ti Sport - "Max" Schwartz II/Schwartz sport interior, S52
1997 318ti Sport - "Tiny" Schwartz II/Schwartz sport interior
1995 318ti Active - "Blanca" Alpineweib III/Schwartz leather interior

Other Current Bimmers: 2000 2.3L Z3 / 1997 1.9L Z3 / 1991 318ic / 1999 540it

1997 318ti Sport - "Huera" - RIP
1995 318ti Active - RIP
1995 318ti Sport - "Tiny" Sold
1994 325i Sedan - "Jade" - Sold
1985 635csi sold
1984 533i "Max" Sold
1984 318i sold

BMWCCA #160411

SUPPORT 318ti.org! CLICK THE LINK ABOVE!
Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW!
BlackBMWs is offline   Reply With Quote
Old 12-07-2016, 11:21 PM   #2
jerseytim
Member
 
Join Date: Jun 2016
Location: jersey
Posts: 55
Vehicles
iTrader: (0)
Default

with the stroked m42 i run a 4.4 with a 328i / m3 gearbox and don't use first gear any more. the ratios are pretty good and it will reach 110mph. on my 328i powered ti, i have a 316i gearbox with a 3.7 final drive and no longer use first gear in that car either. when it rains both cars will spin the wheels in fourth and can be quite a handful but great fun. i have bought a honda s2000 gearbox which i would like to try as it has 6 gears (making 5 usable ones without using 1st) there is a gear calculator somewhere on the net which you put in the tyre size, gearbox ratios etc and it works out speed in each gear which is very helpful for deciding which combination to go for
jerseytim is offline   Reply With Quote
Old 12-10-2016, 01:35 AM   #3
slo318TI
Member
 
slo318TI's Avatar
 
Join Date: Mar 2016
Location: Cedar Park
Posts: 65
iTrader: (0)
Default

Quote:
Originally Posted by jerseytim View Post
with the stroked m42 i run a 4.4 with a 328i / m3 gearbox and don't use first gear any more. the ratios are pretty good and it will reach 110mph. on my 328i powered ti, i have a 316i gearbox with a 3.7 final drive and no longer use first gear in that car either. when it rains both cars will spin the wheels in fourth and can be quite a handful but great fun. i have bought a honda s2000 gearbox which i would like to try as it has 6 gears (making 5 usable ones without using 1st) there is a gear calculator somewhere on the net which you put in the tyre size, gearbox ratios etc and it works out speed in each gear which is very helpful for deciding which combination to go for


Interesting idea with the S2K tranny swap, let us know how it goes with that, might even be cheaper than an s54 tranny swap besides the bell housing fabrication!


Sent from my iPhone using Tapatalk
slo318TI is offline   Reply With Quote
Old 12-10-2016, 07:42 PM   #4
ZEK
Senior Member
 
ZEK's Avatar
 
Join Date: Jul 2009
Location: US
Posts: 214
Vehicles
iTrader: (0)
Default

Is something like this gear ratio/mph calculator what you are looking for? http://www.andysautosport.com/learni...r/calculators/

As for an LSD on the track I can't comment. I do have a modded M50 with a 4.10lsd. I can imagine for autox it would be alright but would run out of gearing on a track. I'm at 4K roughly at 70.
__________________
98 318Ti S52
ZEK is offline   Reply With Quote
Old 12-11-2016, 09:04 PM   #5
samdemange
Senior Member
 
samdemange's Avatar
 
Join Date: Nov 2013
Location: Bresse Track France
Posts: 535
Vehicles
iTrader: (0)
Default

118Mph at 7200 rpm (M52B28) with (323) getrag 5 sp box and a S3.91 (40/25)
all M3 are behind
__________________
my project in progress
http://www.318ti.org/gallery/showgallery.php?cat=1076
samdemange is offline   Reply With Quote
Old 12-12-2016, 05:49 AM   #6
BlackBMWs
Senior Member
 
BlackBMWs's Avatar
 
Join Date: Feb 2012
Location: Sacramento, CA
Posts: 2,440
Vehicles
iTrader: (7)
Default

Thanks all! I'll drop in a 3.25 LSD and see how that works for our local tracks. I'll assess what gets installed in next.


Sent from my iPhone using Tapatalk
__________________


1998 318ti Sport - "Cali" Schwartz II/Schwartz sport interior, Cali top
1998 318ti Sport - "Max" Schwartz II/Schwartz sport interior, S52
1997 318ti Sport - "Tiny" Schwartz II/Schwartz sport interior
1995 318ti Active - "Blanca" Alpineweib III/Schwartz leather interior

Other Current Bimmers: 2000 2.3L Z3 / 1997 1.9L Z3 / 1991 318ic / 1999 540it

1997 318ti Sport - "Huera" - RIP
1995 318ti Active - RIP
1995 318ti Sport - "Tiny" Sold
1994 325i Sedan - "Jade" - Sold
1985 635csi sold
1984 533i "Max" Sold
1984 318i sold

BMWCCA #160411

SUPPORT 318ti.org! CLICK THE LINK ABOVE!
Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW!
BlackBMWs is offline   Reply With Quote
Old 12-12-2016, 05:59 AM   #7
samdemange
Senior Member
 
samdemange's Avatar
 
Join Date: Nov 2013
Location: Bresse Track France
Posts: 535
Vehicles
iTrader: (0)
Default

go directly to a 3.46 or a3.64 you didn't recognise your car
__________________
my project in progress
http://www.318ti.org/gallery/showgallery.php?cat=1076
samdemange is offline   Reply With Quote
Old 12-12-2016, 06:09 AM   #8
BlackBMWs
Senior Member
 
BlackBMWs's Avatar
 
Join Date: Feb 2012
Location: Sacramento, CA
Posts: 2,440
Vehicles
iTrader: (7)
Default

I think a 3.46 with the S52 would be awesome. It'll come...


Sent from my iPhone using Tapatalk
__________________


1998 318ti Sport - "Cali" Schwartz II/Schwartz sport interior, Cali top
1998 318ti Sport - "Max" Schwartz II/Schwartz sport interior, S52
1997 318ti Sport - "Tiny" Schwartz II/Schwartz sport interior
1995 318ti Active - "Blanca" Alpineweib III/Schwartz leather interior

Other Current Bimmers: 2000 2.3L Z3 / 1997 1.9L Z3 / 1991 318ic / 1999 540it

1997 318ti Sport - "Huera" - RIP
1995 318ti Active - RIP
1995 318ti Sport - "Tiny" Sold
1994 325i Sedan - "Jade" - Sold
1985 635csi sold
1984 533i "Max" Sold
1984 318i sold

BMWCCA #160411

SUPPORT 318ti.org! CLICK THE LINK ABOVE!
Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW!
BlackBMWs is offline   Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
LSD Diff backlash bazar01 Differentials 21 11-01-2015 07:52 PM
LSD Diff Shorting out fuse #46 joe1602 Differentials 9 05-28-2015 05:55 AM
Custom Euro 3.25, Euro LSD 168 diff raamaudio Differentials 5 08-14-2013 07:18 PM
LSD diff fluid change, friction modifier or no? ti-billy Differentials 4 06-17-2012 01:03 AM
s52 Swapped Hatch LSD... HyperMikeD Differentials 7 12-30-2010 03:01 AM


All times are GMT +1. The time now is 08:57 PM.


.
Powered by site supporters
vBulletin Version 3.8.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Copyright ©1999 - 2018, 318ti.org
© vBadvanced CMPS v3.2.2
[page compression: 108.87 k/126.79 k (14.13%)]

318ti.org does not warrant or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information or products discussed.