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> Front Sway Bars
wndsnd
post Aug 23 2013, 08:28 PM
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You wanted a horse, but got a goat. Nobody wants a goat....
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I'm see prices of $150, 350, and 500+ for new sway bars

Just wondering, once on the car will there be a difference in feel?


I really only want to spend $200.00, want adjustability, and 19mm for road only.

Your opinions please. Make some sense out of this for me.

Thanks
John
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SLITS
post Aug 24 2013, 09:27 AM
Post #2


"This Utah shit is HARSH!"
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The 914 was 13 or 15 mm. I don't remember which as I gave it away. Bruce Stone can measure it for you plus it is stamped into one end.

I have a stock bar on the front of my six conversion (2.7L) with 140 lb rear springs, Bilsteins w/ adjustable perches on the rear and Koni Reds up front (911 struts). It corners nicely.

I do have a 19 mm bar (911 front) that I will replace the stock one with someday. I also have a rear bar and have not installed it ... maybe some day.

Car is not tracked.

The best setup I ever put on a 914 was an SC front end complete with under body sway bar. Even though it was 22 or so mm, the way it is attached there is not as much deflection so the full rate is not realized. Flat as could be in the twisties.

No need for adjustable drop links on a street car other than making sure the bar is not preloaded in rest position. Just a costly, unnecessary option.

It's a torsion bar and the rate is determined by the diameter of the bar, length of the arms.

Most importantly, the bar is most effective when it is horizontal to the ground plane and the arms are vertical and equal (bar not preloaded). Most effective place to tie in the drop links is at the ball joint for maximum available deflection with suspension movement, but that generally doesn't happen except on full race cars.

Being able to adjust the arm length and keeping the drop links in a vertical plane is most effective, i.e., longer the arm for a given bar diameter, more torsional resistance.

On the race cars, we had multiple attachment points on the arm and commensurate attachment points on the "A" arm so that the arm could be lengthened while keeping the drop links vertical.

We had a rear bar set up in the same manner. On some tracks it was used and on others, we disconnected it. And yes, we used Detroit Locker rear ends.

I'm done!
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wndsnd   Front Sway Bars   Aug 23 2013, 08:28 PM
pilothyer   Night and day difference.........drive one without...   Aug 23 2013, 08:52 PM
Trekkor   Install the largest you can afford. 31mm here. ...   Aug 23 2013, 09:05 PM
wndsnd   Install the largest you can afford. 31mm here. ...   Aug 23 2013, 09:32 PM
shoguneagle   Trekkor is a racing nut who is having fun!...   Aug 23 2013, 09:31 PM
Dave_Darling   The more expensive ones will move more smoothly, a...   Aug 23 2013, 09:47 PM
Trekkor   yes, sorry. For a road only, not tracked or autoc...   Aug 23 2013, 09:50 PM
r_towle   31mm? Did you go get a piece of pipe from Home De...   Aug 23 2013, 09:57 PM
chad newton   31mm? Did you go get a piece of pipe from Home D...   Aug 23 2013, 10:01 PM
Trekkor   I wish :) Smart Racing Products ( now Jerry Woods...   Aug 23 2013, 10:04 PM
scott_in_nh   Hi John, I think I gave you my 2 cents on this whe...   Aug 24 2013, 07:31 AM
wndsnd   This is what I have. The front A arms have the ta...   Aug 24 2013, 08:16 AM
r_towle   So, if you are using this as a street car, 19mm is...   Aug 24 2013, 09:11 AM
SLITS   The 914 was 13 or 15 mm. I don't remember whi...   Aug 24 2013, 09:27 AM
Racer Chris   The most economical choice is a 19mm basic Weltmei...   Aug 24 2013, 11:18 AM
wndsnd   The most economical choice is a 19mm basic Weltme...   Aug 24 2013, 11:54 AM
Racer Chris   Everyone agrees on the front bar, no-one ever tal...   Aug 24 2013, 06:28 PM
sixnotfour   don't forget the old H&H sway bars   Aug 24 2013, 11:04 PM
Racer Chris   don't forget the old H&H sway bars They ...   Aug 25 2013, 09:37 AM
gandalf_025   Hey John: Good to see you are working on the car ...   Aug 25 2013, 08:36 AM
wndsnd   Hey John: Good to see you are working on the car...   Aug 25 2013, 08:46 AM
sixnotfour   Automotion sold em out west before Weltmeister cam...   Aug 25 2013, 10:32 AM
Eric_Shea   A stock 15mm bar is my favorite for a street drive...   Aug 25 2013, 06:31 PM
wndsnd   just bought this stock set up off evil bay 15...   Aug 25 2013, 10:02 PM
Eric_Shea   Once you get it installed you'll be scratching...   Aug 25 2013, 11:35 PM
Racer Chris   I think that's a good value with all of the b...   Aug 26 2013, 08:00 AM
HalfMoon   I wonder what size would be good for my sb convert...   Aug 27 2013, 10:02 PM
wndsnd   I have not received the bar or supports yet, but I...   Aug 28 2013, 02:24 PM
Trekkor   Here's what comes with the Smart/JWE front bar...   Aug 28 2013, 02:37 PM
wndsnd   Gees, Just when I am starting to feel good about ...   Aug 28 2013, 02:49 PM
Eric_Shea   Yeah... that 31mm bar outta be "sweet-on-da-s...   Aug 28 2013, 04:03 PM


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