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      10-26-2015, 08:16 PM   #1
hot-j
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Adjustable swaybars for 1M?

Are there adjustable swaybars on the market for the 1M? I'd love to be able to dial over or understeer in or out as it suites.....
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      10-26-2015, 08:51 PM   #2
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Dinan's is adjustable.
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      10-26-2015, 09:10 PM   #3
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Originally Posted by hot-j View Post
Are there adjustable swaybars on the market for the 1M? I'd love to be able to dial over or understeer in or out as it suites.....
Dinan, Turner, and RD make adjustable bars that work for our cars.

I just finished dialing my car in. I originally had RD sway bars front and rear but the sway bars were way over kill. It made the car rather difficult to drive and really tail happy, even with the rear bar on soft. My rear RD bar actually snapped at the track and the car felt better.

I am now running a Dinan Front and OEM rear bar and it is perfect. I recommend this option.
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      10-27-2015, 01:42 AM   #4
hot-j
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I can't find any rear adjustable bars at all. With the stock suspension, (H&R springs) understeer is prevelent. I am thinking of getting Ohlins DFV coilovers. I don't want to do them separate and have to get an alignment twice.
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      10-27-2015, 07:35 PM   #5
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Quote:
Originally Posted by hot-j View Post
I can't find any rear adjustable bars at all. With the stock suspension, (H&R springs) understeer is prevelent. I am thinking of getting Ohlins DFV coilovers. I don't want to do them separate and have to get an alignment twice.
Like what ilikebmxbikes said, there's no need to upgraded the rear sway bar just do the front.
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      10-27-2015, 07:37 PM   #6
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I'm running an E93 M3 front sway bar, but feel compelled to note that sways should be used to tweak your set-up only after you've done shocks and springs.

Neil
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      10-28-2015, 12:09 AM   #7
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Originally Posted by MDORPHN View Post
I'm running an E93 M3 front sway bar, but feel compelled to note that sways should be used to tweak your set-up only after you've done shocks and springs.

Neil
Yes sir. My reasoning exactly. Now... I do not know how you guys are putting front bars on only and not getting a ton of understeer.
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      10-28-2015, 12:20 AM   #8
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Originally Posted by hot-j View Post
Yes sir. My reasoning exactly. Now... I do not know how you guys are putting front bars on only and not getting a ton of understeer.
if you put a larger front bar without changing anything else, you would simply introduce understeer. I have changed tire sizes, suspension, control arms, bushings, weight, among other things which all influence the car and the front bar alone made for the best set up. With a rear bar on it was extremely prone to over steer.
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      10-28-2015, 04:33 AM   #9
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2011 1M  [9.35]
Quote:
Originally Posted by hot-j View Post
Are there adjustable swaybars on the market for the 1M? I'd love to be able to dial over or understeer in or out as it suites.....
Have you thought of switching to a square tire set-up and just playing with your alignment? I'd recommend that you follow the dampers and springs advice from MDORPHN before considering sways. That route will open up far more tuning opportunities.

I run no rear sway bar on my car.

Quote:
Originally Posted by hot-j View Post
Yes sir. My reasoning exactly. Now... I do not know how you guys are putting front bars on only and not getting a ton of understeer.

The rule of a stiffer bar up front equals understeer is not completely set in stone with a MacPherson set-up.

Last edited by redux; 10-28-2015 at 04:44 AM..
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      10-28-2015, 08:12 AM   #10
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Quote:
Originally Posted by hot-j View Post
Yes sir. My reasoning exactly. Now... I do not know how you guys are putting front bars on only and not getting a ton of understeer.
I have terrific turn-in, but I'm also running 265s in front with 3 degrees of camber.

Neil
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      10-28-2015, 10:54 PM   #11
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I love the stock wheels, and it is a street car only... so changing to a square setup is not an option for me. Unless the rears will fit on the front? I guess I'll get the Ohlins and go from there.
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      10-29-2015, 08:28 AM   #12
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Quote:
Originally Posted by hot-j
I can't find any rear adjustable bars at all. With the stock suspension, (H&R springs) understeer is prevelent. I am thinking of getting Ohlins DFV coilovers. I don't want to do them separate and have to get an alignment twice.
An alignment is not necessary after changing sway bars.
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      10-29-2015, 08:46 AM   #13
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Quote:
Originally Posted by hot-j
Are there adjustable swaybars on the market for the 1M? I'd love to be able to dial over or understeer in or out as it suites.....
How you use the car? Are you tracking/autocrossing? How competitive are you, and what trade offs are you willing to make for daily driving.

I'd consider leaving the stock bars, but upgrading to double adjustable struts/shocks and camber plates. Compression damping, and it's interaction with rebound, can have a significant affect on balance. Camber plates should help reduce understeer and excessive wear due to hard cornering. If you want reduced ride height and/or higher spring rates, going all the way to a full coilover upgrade may make sense. When properly configured, the dampeners should be matched to the new spring rates.
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      10-29-2015, 10:02 AM   #14
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Quote:
Originally Posted by E30 Racer View Post
How you use the car? Are you tracking/autocrossing? How competitive are you, and what trade offs are you willing to make for daily driving.

I'd consider leaving the stock bars, but upgrading to double adjustable struts/shocks and camber plates. Compression damping, and it's interaction with rebound, can have a significant affect on balance. Camber plates should help reduce understeer and excessive wear due to hard cornering. If you want reduced ride height and/or higher spring rates, going all the way to a full coilover upgrade may make sense. When properly configured, the dampeners should be matched to the new spring rates.


Neil
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      10-29-2015, 10:10 AM   #15
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Quote:
Originally Posted by hot-j View Post
Yes sir. My reasoning exactly. Now... I do not know how you guys are putting front bars on only and not getting a ton of understeer.
Because it reduces front roll, which keeps the tire flatter, which increases front grip. With front strut, this is more important than the decrease in handling from the increase in front weight transfer.
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      10-29-2015, 12:44 PM   #16
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Quote:
Originally Posted by hot-j View Post
I love the stock wheels, and it is a street car only... so changing to a square setup is not an option for me. Unless the rears will fit on the front? I guess I'll get the Ohlins and go from there.
Rears can fit on the front. Im running a 10x18et25 w/ 265/45/18 r888 Front and a 10.5x18et25 w/ 275/35/18 r888 Rear.
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