Rear Sway Bar

Suspension related stuff goes in here.
Post Reply
User avatar
TommyClocks
Posts: 60
Joined: Sun May 09, 2010 12:30 pm
Your car is a: 1975 124 Spider 1970 Corvette Roadster
Location: Acton, Ca

Rear Sway Bar

Post by TommyClocks »

I installed a rear sway bar this past Friday and WOW what a difference. I always thought that this Spider had a lot of body roll and understeer, but after reading about these cars I found out that this is pretty normal. After installing the sway bar the Spider handles like a Go-Kart. There is very little understeer and the car goes just where you point it. I think another trip up Mt Baldy road is in order for next weekend.....
---Tommy

1975 124 Spider "Jeanie"
1979 X 1/9 "Natalie"
jrader

Re: Rear Sway Bar

Post by jrader »

do you have any details on the install, brand, etc? Did you upgrade your front bar to a 1" as well? I've been thinking about doing this but just haven't made it happen yet. Maybe your experience will be my extra motivation to make it happen.
Thanks
User avatar
TommyClocks
Posts: 60
Joined: Sun May 09, 2010 12:30 pm
Your car is a: 1975 124 Spider 1970 Corvette Roadster
Location: Acton, Ca

Re: Rear Sway Bar

Post by TommyClocks »

I contacted Addco Manufacturing 1-800-621-8916 and asked what sway bars they had to fit a '75 Fiat 124 Spider. They gave me the part number and I ordered it through Summit Racing. The installation instructions were straight forward, I had to drill four 3/8" holes in the frame. The handling is very neutral now and the tires don't squeal unless I drive it really hard. I don't think I will upgrade the front sway bar because I like the handling the way it is now. I really enjoy the twisty roads now!
---Tommy

1975 124 Spider "Jeanie"
1979 X 1/9 "Natalie"
spiderrey
Posts: 2623
Joined: Sat Jan 28, 2006 2:08 pm
Your car is a: 70 124 spider-74x19-03 ranger edge
Location: San Dimas, Ca

Re: Rear Sway Bar

Post by spiderrey »

Where is acton
htchevyii
Patron 2022
Patron 2022
Posts: 1807
Joined: Thu Jan 17, 2008 9:31 pm
Your car is a: 1982 Spider hers 1972 Spider his
Location: Hydesville, CA (NorCal)

Re: Rear Sway Bar

Post by htchevyii »

Trey
Image
1982 SPIDER 2000, 1964 CHEVYII, 1969 Chevy Nova, 2005 DODGE RAM, 1988 Jeep Comanche
1972 Spider, 78 Spider rat racer 57 f-100,
Zmatt

Re: Rear Sway Bar

Post by Zmatt »

A front swap bar would create more understeer. At this point i wouldn't do that as it would put you more or less back at square one. generally speaking if you want to get rid of over steer stiffen the front, if you want to get rid of under steer stiffen the rear.
User avatar
TommyClocks
Posts: 60
Joined: Sun May 09, 2010 12:30 pm
Your car is a: 1975 124 Spider 1970 Corvette Roadster
Location: Acton, Ca

Re: Rear Sway Bar

Post by TommyClocks »

That's true Matt. I was surprised how much understeer and body roll this car had when I first bought it, I thought it "plowed" like a tractor. The rear sway bar brought just the right balance and there is no need for a stiffer front bar. Like you said with a stiffer front bar I might be back where I started. Right now the car goes where I point it and I haven't experienced any oversteer.
---Tommy

1975 124 Spider "Jeanie"
1979 X 1/9 "Natalie"
Post Reply