Page 2 of 4 FirstFirst 1234 LastLast
Results 26 to 50 of 77

Thread: Help me fine tune my suspension setup. SLR kit E36

  1. #26
    Join Date
    Aug 2005
    Location
    518
    Posts
    12,720
    My Cars
    Dicktone Limo
    How are you going to achieve stock ackerman with the SLR kit?

  2. #27
    Join Date
    Jun 2011
    Location
    Vancouver, BC Ca
    Posts
    3,255
    My Cars
    1993 325is
    It's adjustable.

  3. #28
    Join Date
    Nov 2004
    Location
    Arvada, CO
    Posts
    717
    My Cars
    LS6 E36 drifter, 18 f350
    The SLR kit has an "inboard" mounting position for the tie rod pickup point and and "outboard" position.

    Inboard = no ackerman for high speed cornering and drifting

    outboard = stock ackerman for auto-x

  4. #29
    Join Date
    Aug 2005
    Location
    518
    Posts
    12,720
    My Cars
    Dicktone Limo
    I thought both positions were reduced ackerman from stock, and wouldn't the inboard position mean more ackerman? Maybe I don't understand ackerman.

  5. #30
    Join Date
    Jan 2007
    Location
    Shreveport
    Posts
    267
    My Cars
    2JZ E30
    Edited
    Last edited by SLEEPYDUB; 06-07-2013 at 08:23 PM.
    - AXIS POWERS - 2JZ E30 Build -
    Interested in Drifting in the ArkLaTex? Join us at ArkLaTexDrift!
    318Racing.org

  6. #31
    Join Date
    Oct 2004
    Location
    Austin, TX
    Posts
    6,091
    My Cars
    S13, Turbo M3
    Just got an alignment for this Sunday @ Rd 3. Will report back how it goes

    -5* F
    0* R
    1* front toe out total
    1.4* toe-in rear (.70* each side)
    non-M rack
    7.5* caster

    Mike
    IG: @mikevanshellenbeck

  7. #32
    Join Date
    Nov 2004
    Location
    Arvada, CO
    Posts
    717
    My Cars
    LS6 E36 drifter, 18 f350
    okay, the weekends results!!!!

    zero ackerman position on slr kit 2* toe out:
    Handled okay, decent self steer up to about 80% lock, twitchy in the straights and scary at speeds over 100 while driving. Great initiation capability due to the massive toe out. Good mid drift control. VERY hard on the inside of the front tires>>left foot braking caused inside tire lockup almost immediately.

    Zero ackerman 0* toe:
    Sucks, no self steer at all and left foot brake=wheel pulls into turn not out of it!

    Stock ackerman on SLR 0* toe:
    Handled great, decent self steer up to about 80% lock, stable in the straights and fine at speeds over 100 while driving (there was some vibration, but I did the alignment a the track and I have +20mm wheels with 20mm spacers!). good initiation capability. Good mid drift control. much easier on the inside of the front tires>>left foot braking was much more controllable.

    I actually shot video of my hands while drifting the course. It is possible to see how much more effort the car is with the different alignments. Still not perfect but its getting better. I also took about 10 runs with each setting. I will be adjusting toe in and out from here. I also plan to remove front camber to see the effects.

    Note: The 2* toe out setting pretty much ruined my RS3's in about 20 runs! I flopped them to test the other settings and the 0* toe with stock ackerman had no abnormal wear on the tires!!

  8. #33
    Join Date
    May 2007
    Location
    fairfax,va, usa
    Posts
    6,660
    My Cars
    2 E30s and a maxima
    so 0 ackerman bad

    Status: Someone put glitter in my oil. Wait. Why's all my oil outside the engine? What's that knocking?

  9. #34
    Join Date
    Nov 2004
    Location
    Arvada, CO
    Posts
    717
    My Cars
    LS6 E36 drifter, 18 f350
    Quote Originally Posted by protomor View Post
    so 0 ackerman bad
    Yes, 0 ackerman just led to way worse front tire wear!

  10. #35
    Join Date
    Aug 2005
    Location
    518
    Posts
    12,720
    My Cars
    Dicktone Limo
    That's probably because your moving the pickup to the low/ "Zero" ackerman setting caused you to gain a bunch of toe-out.

    Zero ackerman at lock would mean less tire wear considering both tires would be pointed the same way and be travelling in the same arc with parallel toe, no?

  11. #36
    Join Date
    Oct 2004
    Location
    Austin, TX
    Posts
    6,091
    My Cars
    S13, Turbo M3
    Quote Originally Posted by bennyfizzle View Post
    That's probably because your moving the pickup to the low/ "Zero" ackerman setting caused you to gain a bunch of toe-out.

    Zero ackerman at lock would mean less tire wear considering both tires would be pointed the same way and be travelling in the same arc with parallel toe, no?
    My V1 setup had supposedly 0 ackerman, or actually -2* negative ackerman at lock, and my front tire wear was amazing. I ran over a year and at least 10 events with the same fronts. It eventually scrubbed the outside of them enough that I changed them because I was getting sketched out looking at them.


    From my minimal test time this past weekend, I LOVED my current setup. It felt really controllable and dialed in, but that just may be because all my previous steering setups have sucked and I just made them work or drove around it.

    -5* camber
    8* caster
    1* toe out total up front
    235/40-17 tire on 18x8-2 with V1 arms and V4 blocks

    Rear
    0* camber
    1.4* total toe in
    265/35-18 tire on 18x10.5+0

    Rear I'm still wearing the insides too much and can't really figure it out. At 0 toe, it "camber wears" the insides really bad, which makes no sense. I used to run stiffer rear springs, and would get perfectly even rear wear at 890 lb springs, -.25* camber, .6* total toe in. Now I have 560 lb rear springs, so more camber gain on throttle, or so I thought.... at 0* camber, 0* toe, it wore the inside horribly. At +0.5* camber, 0* toe, it still wore the inside. Now I'm back to 0* camber, and 1.4* total toe in (Chelsea runs even more than this and -0.5* camber and claims perfectly even wear).

    Hmm. Got the front dialed in but still learning on the rear..

    Mike
    IG: @mikevanshellenbeck

  12. #37
    Join Date
    Nov 2004
    Location
    Arvada, CO
    Posts
    717
    My Cars
    LS6 E36 drifter, 18 f350
    Quote Originally Posted by bennyfizzle View Post
    That's probably because your moving the pickup to the low/ "Zero" ackerman setting caused you to gain a bunch of toe-out.
    I had the alignment measured while at the "zero" ackerman setting

    Quote Originally Posted by bennyfizzle View Post
    Zero ackerman at lock would mean less tire wear considering both tires would be pointed the same way and be travelling in the same arc with parallel toe, no?
    Thats only true if your toe is also at zero. Zero toe with Zero ackerman leads to the car handling like a bag of dicks!

  13. #38
    Join Date
    May 2007
    Location
    fairfax,va, usa
    Posts
    6,660
    My Cars
    2 E30s and a maxima
    Quote Originally Posted by MikeE36 View Post
    Got the front dialed in but still learning on the rear..
    <3 you

    Status: Someone put glitter in my oil. Wait. Why's all my oil outside the engine? What's that knocking?

  14. #39
    SLR is offline Senior Member Supporting Vendor
    Join Date
    Jun 2004
    Location
    Florida, USA
    Posts
    892
    My Cars
    '08 E46, E36,
    Hi Levi, you say you did adjust the toe back to zero when swapping between the race and drift settings on the plates?

    Also can you list what lollipops you're using and what caster setting?

    Your symptoms sound very indicative of having low caster settings, especially via the lollipop (caster at the strut only changes caster, and slightly alters bump-steer) caster at the lollipop changes wheelbase also, which will affect the rack-to-steering-arm position. The more forward the knuckles are positioned relative to the rack, the more ackerman the car will develop which is part of the reason all the SLR arm configurations use 96+ M3 geometry.

    Also we recently came out with a medium ackerman shim plate if you'd like to try it just let me know.

    Regards,
    Sean

  15. #40
    Join Date
    Nov 2004
    Location
    Arvada, CO
    Posts
    717
    My Cars
    LS6 E36 drifter, 18 f350
    I am running centered stock 95 M3 bushings. Max Caster on GC camber plates. This decision was based on the fact that I have 95 M3 knuckles and the akg bushings are centered. Should I switch over to offset bushings? I was debating some treehouse bushings but decided not to because they were offset IIRC.

  16. #41
    SLR is offline Senior Member Supporting Vendor
    Join Date
    Jun 2004
    Location
    Florida, USA
    Posts
    892
    My Cars
    '08 E46, E36,
    I really need to go to bed earlier!

    Stock 95 M3 bushings should be offset not centered. 96+ were centered because BMW added the caster on the arms, but there may be some 95/96 overlap parts.

    Regardless, our arms are designed to be run with centered bushings, but plenty of guys use them with offset for super-caster. With the extra wheelbase created by the offset bushings (yea treehouse are offset geometry too) you might rub the fender well at lock.

  17. #42
    Join Date
    Nov 2004
    Location
    Arvada, CO
    Posts
    717
    My Cars
    LS6 E36 drifter, 18 f350
    I was confused when I wrote that LOL. I knew I had the centered bushing for a reason. The e46 arms are made for the centered bushings also right??

  18. #43
    SLR is offline Senior Member Supporting Vendor
    Join Date
    Jun 2004
    Location
    Florida, USA
    Posts
    892
    My Cars
    '08 E46, E36,
    Ok, I'm really trying to figure this out, and now it all makes sense. The E46 arms need more offset on the E36 chassis for optimal KPI. There's nothing out there right now to mount the hex arm end to the E36 with offset, but we're releasing the hex-insert for our adjustable lollipops very soon. Or you can round your hex ends and use whatever offset bushing you like. This will help massively and also increase your ackerman by positioning the balljoints further ahead of the rack.

    Sorry I didn't catch the E46 arm part earlier, I just can't keep up with who has what parts anymore

  19. #44
    Join Date
    May 2007
    Location
    fairfax,va, usa
    Posts
    6,660
    My Cars
    2 E30s and a maxima
    I just rounded mine out and smoothed it down. Not the best thing but it works.

    Status: Someone put glitter in my oil. Wait. Why's all my oil outside the engine? What's that knocking?

  20. #45
    Join Date
    Nov 2004
    Location
    Arvada, CO
    Posts
    717
    My Cars
    LS6 E36 drifter, 18 f350
    Mine are already rounded and polished. No issue there. I just spent an hour researching this and found contradicting info as usual. Let me see if I have this right.

    E46 arms need offset bushings
    SLR arms need centered bushings


    If I install offset bushings, I know that my wheels will hit the front bumper while turning. Are others having this issue?

  21. #46
    Join Date
    Aug 2005
    Location
    518
    Posts
    12,720
    My Cars
    Dicktone Limo
    mine did with 95 m3 arms, but my wheels look like roughly 10mm behind the center of the fender well. this is why the adjustable lollipops are cool :/

  22. #47
    Join Date
    Jan 2007
    Location
    Shreveport
    Posts
    267
    My Cars
    2JZ E30
    I'm on E46 arms with centered and it works great.
    - AXIS POWERS - 2JZ E30 Build -
    Interested in Drifting in the ArkLaTex? Join us at ArkLaTexDrift!
    318Racing.org

  23. #48
    SLR is offline Senior Member Supporting Vendor
    Join Date
    Jun 2004
    Location
    Florida, USA
    Posts
    892
    My Cars
    '08 E46, E36,
    Quote Originally Posted by bennyfizzle View Post
    mine did with 95 m3 arms, but my wheels look like roughly 10mm behind the center of the fender well. this is why the adjustable lollipops are cool :/

    You mean 95 M3 spindles right? I know you have the E46 arms

  24. #49
    Join Date
    Aug 2005
    Location
    518
    Posts
    12,720
    My Cars
    Dicktone Limo
    no I was talking about my last/original setup, I had 95 m3 arms, thr eyeballs, and 95 m3 knuckles

  25. #50
    Join Date
    Mar 2008
    Location
    Bunker Hill, WV
    Posts
    4,057
    My Cars
    95 M3, 07 Titan, 96 XJ
    @MikeE36..
    your rear tire issue's with 0 camber most likely has to do with softer springs.. more grip which means the car is squatting... the only way i see you being able to fix the issue is one or a combo of the following.

    1. Slightly stiffer rear spring ( Probably will hurt rear grip )
    2. Adjust your rear dampening.
    3. Positive rear camber? maybe .5 each side? I dont know if this is even possible with E36 adjustable control arms

    I could be completely wrong with all 3 of those... some one who knows more could possibly enlighten both of us.

    E30 Turbo 2.8L - 60ft - 1.70 :: 1/8th - 6.99 :: MPH - 105.47 :: 1/4 - 10.66 :: MPH - 132.53
    Daily E36 M3 - 60ft - 1.790 :: 1/8th - 8.20 :: MPH - 84.68 :: 1/4 - 12.81 :: MPH - 107.05
    *RIP* E36 M3 - 60ft - 1.944 :: 1/8th - 8.64 :: MPH - 80.00 :: 1/4 - 13.55 :: MPH - 99.95
    Cool2seat's TTstg1 E36 M3 - 60ft - 2.123 :: 1/8th - 8.44 :: MPH - 87.71 :: 1/4 - 12.94 :: MPH - 107.95

Page 2 of 4 FirstFirst 1234 LastLast

Similar Threads

  1. anyone willing to help me tune my subwoofer setup in my E39?
    By supark in forum Pacific Northwest - US
    Replies: 0
    Last Post: 10-06-2006, 04:58 PM
  2. Help Me get the best Suspension setup for My 1.9L Z3
    By cajunroadster in forum 1996 - 2002 Z3 (E36/7, E36/8)
    Replies: 22
    Last Post: 09-01-2005, 09:11 PM
  3. Help fine tuning my 9855 system (E36 M3)
    By Flexia in forum Car Audio & Electronics sponsored by Bavsound
    Replies: 4
    Last Post: 08-10-2005, 10:57 PM
  4. please help me decide on my suspension....
    By oddjob142 in forum 1991 - 1999 (E36)
    Replies: 0
    Last Post: 12-04-2002, 10:03 PM
  5. Help me dial in my H&R c/o suspension! Please!
    By 95DinanM3 in forum 1992 - 1999 M3 (E36)
    Replies: 2
    Last Post: 10-25-2002, 01:44 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •