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914World.com _ 914World Garage _ Rear sway bar banging on bumpy roads

Posted by: PNW_Boxer993 Jul 13 2019, 06:47 PM

Hi 914world members,
I have researched the topic of rear sway bar hitting the trunk on lowered cars on this forum (thank you all for sharing!) This is the case for my 914 - and it appears that the "easy" fix is to turn the sway bar upside down (or reverse it.) . I wanted to post pictures of my current installation to ensure that this would be the fix for me. Opinions/recommendations welcome. Also - level of effort/complexity related to the fix and anything else I should be addressing during the fix. Thank you in advance for your assistance! Cheers, Tony

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Posted by: IronHillRestorations Jul 13 2019, 08:59 PM

Looks to me like you've got a bad bushing at one of the brackets, which will make a clunk

Posted by: porschetub Jul 13 2019, 11:14 PM

QUOTE(IronHillRestorations @ Jul 14 2019, 02:59 PM) *

Looks to me like you've got a bad bushing at one of the brackets, which will make a clunk

agree.gif hard to say anything else..cheap as cheese to replace.

Posted by: PNW_Boxer993 Jul 14 2019, 12:31 AM

Thank you both! Let me take some better pictures and upload. I will also highlight the spot where it appears to be hitting. Will upload more pictures tomorrow.

Posted by: rgalla9146 Jul 14 2019, 05:50 AM

Your car is too low.
The bottom collars an the Bilsteins are very high on the shock...with a spacer ?
You have aftermarket springs which look too short. And too stiff.
Unless you have these parts for a reason get stock springs, remove the spacer
and set the lower collar on the third groove (from the bottom) of the shock .
The car will be as low as necessary without the bumping.
I'm assuming they are Bilsteins by the color and the grooves but the lower collars are not familiar to me.
My suggestions apply to a lower collar as pictured.


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Posted by: 914Sixer Jul 14 2019, 07:34 AM

Body mounts to the bar are NOT stock and are incorrect. Stock mount does not bolt on like that. Bar mounts hould be welded to trunk floor pan. Second the springs are not stock either, that's why they are so high.


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Posted by: 76-914 Jul 14 2019, 07:52 AM

agree.gif Perry AND Mark are correct in their assessments. 6th perch if it is a six. beerchug.gif

Posted by: rgalla9146 Jul 14 2019, 08:30 AM

QUOTE(76-914 @ Jul 14 2019, 09:52 AM) *

agree.gif Perry AND Mark are correct in their assessments. 6th perch if it is a six. beerchug.gif


3rd perch on a 6



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Posted by: rgalla9146 Jul 14 2019, 08:33 AM

incorrect bar mounts.
aftermarket springs.
unknown lower cups.
link bushes.
race car ?
all bets off

Posted by: 76-914 Jul 14 2019, 08:48 AM

6th on this six confused24.gif

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Posted by: rgalla9146 Jul 14 2019, 09:06 AM

QUOTE(76-914 @ Jul 14 2019, 10:48 AM) *

6th on this six confused24.gif

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sad.gif three pics of Bilsteins and three different lower cup arrangements.
What engine is that ?

Posted by: mepstein Jul 14 2019, 09:09 AM

QUOTE(76-914 @ Jul 14 2019, 10:48 AM) *

6th on this six confused24.gif

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I used the Billstein lower collars, set it on the 4th groove and it's too low, I intend to raise it to the 6th groove. Rory is using a different lower perch that effectively raises the lower height to about the 6th groove. Just a different way of getting there.

Posted by: Larmo63 Jul 14 2019, 11:04 AM

agree.gif

He seems to have a few issues going on.

The bar itself could be mounted upside down too.

Posted by: SirAndy Jul 14 2019, 11:15 AM


You can mount the bar upside down on purpose which will change the angle where it connects to the drop links which in turn will prevent the bar/links from hitting the trunk floor.

I know there's picture of that setup on here somewhere ...
idea.gif


Posted by: 914Toy Jul 14 2019, 12:52 PM

Take the bar off unless you are competitively driving on a racing track.

Posted by: sixnotfour Jul 14 2019, 01:24 PM

popcorn[1].gif

https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwj6jryEkrXjAhVSmK0KHY2mApsQjhx6BAgBEAM&url=https%3A%2F%2Fwww.pelicanparts.com%2Ftecharticles%2F914_rear_sway%2F914_rear_sway.htm&psig=AOvVaw3oSr8iJT2IQPAGRH-FCAz4&ust=1563218750635890


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Posted by: IronHillRestorations Jul 14 2019, 02:42 PM

QUOTE(sixnotfour @ Jul 14 2019, 11:24 AM) *

popcorn[1].gif

https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwj6jryEkrXjAhVSmK0KHY2mApsQjhx6BAgBEAM&url=https%3A%2F%2Fwww.pelicanparts.com%2Ftecharticles%2F914_rear_sway%2F914_rear_sway.htm&psig=AOvVaw3oSr8iJT2IQPAGRH-FCAz4&ust=1563218750635890



914 LTD sells that kit

Posted by: sixnotfour Jul 14 2019, 03:44 PM

QUOTE(IronHillRestorations @ Jul 14 2019, 02:42 PM) *

QUOTE(sixnotfour @ Jul 14 2019, 11:24 AM) *

popcorn[1].gif

https://www.google.com/url?sa=i&source=images&cd=&ved=2ahUKEwj6jryEkrXjAhVSmK0KHY2mApsQjhx6BAgBEAM&url=https%3A%2F%2Fwww.pelicanparts.com%2Ftecharticles%2F914_rear_sway%2F914_rear_sway.htm&psig=AOvVaw3oSr8iJT2IQPAGRH-FCAz4&ust=1563218750635890



914 LTD sells that kit

forgot the link popcorn[1].gif
https://www.ebay.com/itm/Porsche-914-Original-Style-Rear-Sway-Bar-Mounts/273882998138?hash=item3fc4b2e57a:g:UhMAAOSw2gxYxyN5

Posted by: DickSteinkamp Jul 14 2019, 04:08 PM

QUOTE(914Toy @ Jul 14 2019, 11:52 AM) *

Take the bar off unless you are competitively driving on a racing track.



I don't want to hijack the thread, but can you tell more about this solution? I removed the bar on my 1976 V8 car for exhaust clearance reasons. It's a narrow body and will never be much of a track car (not intended to be). It's lower than stock.

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Does the rear bar hurt handling or is it just that it doesn't help any?

Why did Porsche install it on the later cars? Due to the new, heavy bumpers or the taller stance?

Posted by: SirAndy Jul 14 2019, 05:33 PM

QUOTE(DickSteinkamp @ Jul 14 2019, 03:08 PM) *
Does the rear bar hurt handling or is it just that it doesn't help any?

Neither ...

I added a stock rear bar to my '70 and it makes it handle noticeably better.
smile.gif

Posted by: 914Toy Jul 14 2019, 09:20 PM

My earlier comment applies to a stock suspension and car weight - do not need a rear bar for street driving.jn

Posted by: brant Jul 14 2019, 09:28 PM

I love a rear bar on a street car. Really fun. Definitely improves a stock-ish car with mild spring rates. (140)

Posted by: PNW_Boxer993 Jul 14 2019, 10:43 PM

Thank you to everyone for their feedback. Given some of the compounding issues highlighted, this has become more than what I am
comfortable with. Will seek some additional local help to resolve. Thank you everyone! Tony.

Posted by: 76-914 Jul 15 2019, 08:09 AM

QUOTE(rgalla9146 @ Jul 14 2019, 08:06 AM) *

QUOTE(76-914 @ Jul 14 2019, 10:48 AM) *

6th on this six confused24.gif

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sad.gif three pics of Bilsteins and three different lower cup arrangements.
What engine is that ?

The Dark Side; Subaru 6 biggrin.gif

Posted by: 76-914 Jul 15 2019, 08:11 AM

Ahaa!

Posted by: Eric_Shea Jul 16 2019, 02:45 PM

Mounted upside down.

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