E36 Anti Roll Bar Mtech vs Eibach

[anxious]

I have been doing some research.

I discovered that the E36 ARB sizes are as follows:-

http://www.vorshlag.com/tech/bars.html


E36 Anti-roll Bars

Manufacturer..........Front, mm.........Rear, mm..................Notes

BMW - 1995 M3..........22.5.................19
BMW - 1996+ M3........23....................20
BMW - 325/328 Base...24....................15
BMW - 325/328 Sport Package 25.5......18

Aftermarket

Eibach M3 style..........26....................24........... .......adjustable
Eibach 325/328/318....28....................21..................a djustable
UUC Motorwerks.........25.4.................23.8...... ............adjustable
Turner .....................27....................24..... ..... ........adjustable
RD...........................27................... .22.2..................adjustable
Dinan.......................22.2.................. 22.2..................adjustable
H&R.........................28.................. .. 21 ..................adjustable



What is your opinion of M-Tech ARB vs Eibach ARB?

I dont track the car. I just want a "tighter feel" when I go around bends.

Should I go for a M Tech suspension or a Bilstein? Eibach combo?

Opinions most welcomed.Thx

 

[anxious]

Re: E36 Anti Roll Bar Mtech vs Eibach

I found some more interesting info:-


Quote:
Originally Posted by Jed

I happen to have a 1996 issue of European Car with some info in the Tech Letters section. It isn't everything you are looking for, but it may help.

The sport package or "M Technic" sport package suspension has a front sway bar of 25.5mm vs 24mm for the non-sport. The rear is 18mm for the sport package vs 15mm.

Spring rates were not given but BMW classifies them as "firmer" (obviously in-between the non-sport and M3 spring rates) and lowers the sport package car by 15mm or .6 in below stock.
Shock and strut dampers are mentioned as having sportier calibration (again in between non-sport and M3). The article infers that it is stiffer than the Bilstein HD shocks.

For the 1993 and 1994 325is sport package tire size was 225/55-15 vs 205/60-15 for non-sport. The 1995 325is sport package used the same 16" rim on the 328is sport package-I don't know the tire size though.


see Need: Stock e36 M3 or Sport package rear springs - DTM Power BMW Message Board Forum

 

[anxious]

Re: E36 Anti Roll Bar Mtech vs Eibach

My stock 325i has 24mm in front and 15mm rear ARBs.

Would M Tech 's 25.5mm (F)/18mm(R) make a difference.

Has anyone tried MTech v Eibach ARB.

Does BMW sell an ARB kit?

Thanks

 

[anxious]

Re: E36 Anti Roll Bar Mtech vs Eibach

The cost of upgrading the ARB+bushes to MTech is half of the costs of upgrading the Shocks/Springs.

The Mtech ARB+ normal bushes should cost a little over RM1.6k.

The Eibach/Bilstein combo with all the absorber mounting etc would cost almost RM4k.

Therefore on paper the Mtech ARB upgrade looks attractive. Thats why I need to know whether anyone has done this upgrade on a stock suspension set up?

I just came across this post:-

"ARB are rated on thickness, which is expressed in either mm or inches (or fractions thereof). Watch out though as a few mm or 16th of an inch can double the stiffness of the bar. Reason is that stiffness increases as a fourth power of change in diameter ie you multiply the diameter 4 times to get the stiffness. Best to work it out in mm. eg a 22mm bar gives an end value of 234256 while a 26mm bar gives 456976 (26x26x26x26) basically nearly twice as stiff!"

Therfore could uprating my present 24mm(F)/15mm(R) to MTech's 25.5mm(F)&18mm(R) have the desired effect of better handling on my stock suspension?