Suspension advice, reassurance please.

[billroth]

I have done the search. To much information but I read most of it.

Looking for some advice and just reassurance that the plan is sound.

85 coupe, 60k miles, mostly if not all road use. Looking to make the car "like new" or better (some sagging bushings).

Ride height way off, too low, balanced, who knows? PO's fault.

I was planning to update to something like the ER Street 2 this winter. I was going to do this myself, set the ride height to Euro spec, followed by alighnment as best I can and then go somewhere and have it checked and corner balanced.

Wondering if this seems like a reasonable plan? Anything else while I'm there? Everything seem fine now, slight pull but just on one side of the lane, and some twitchiness at speed.

Thanks.

[brads911sc]

that is EXACTLY what I did.

ERP Street Perf 2.

Aligned and CB, Euro Height.

Did all the work myself except for the Alignment and CB. Rides and Drives like a DREAM... Wasnt anything else needed (while youre in there) for me. Best 4k I spent so far on the ride and performance of the car...

[Bill Verburg]

Originally Posted by billroth

I have done the search. To much information but I read most of it.

Looking for some advice and just reassurance that the plan is sound.

85 coupe, 60k miles, mostly if not all road use. Looking to make the car "like new" or better (some sagging bushings).

Ride height way off, too low, balanced, who knows? PO's fault.

I was planning to update to something like the ER Street 2 this winter. I was going to do this myself, set the ride height to Euro spec, followed by alighnment as best I can and then go somewhere and have it checked and corner balanced.

Wondering if this seems like a reasonable plan? Anything else while I'm there? Everything seem fine now, slight pull but just on one side of the lane, and some twitchiness at speed.

Thanks.

If the black one in your garage is yours it looks too high in front, I'd drop it and install a simple bump steer kit.

RoW front is speced to ~115mm using the a-b method, you can go to ~155mm w/o worrying about hitting things, it does depend somewhat on tires though

[911st]

Add stiffer springs if you want the car to corner flater and ride stiffer because you want to run it very low or for sport driving purposes. However, it sounds like your car is a road car.

New shocks, biger springs, & race style bushings will make the car more capable and make the ride sporty.

22/29 torsion bars are a nice livable addation if planing on doing some autoX or track days.

However, if it is not going to be slamed or used for competive driving events the stock suspention if in good working order is quite capable with a set of good tires. On the back roads a well tuned stock suspention might even be as capable as a sport suspention. I ran the stock suspention on the track and had a lot of fun with it and pulled some solid times thought it dose move about in the corners and under braking some. On twisty back roads the stock suspention was plenty capable and I suspect it might even be as fast over the less than perfict surfaces than a race set up might be unless one is going at a crazy levels of speed.

If low, a little low a bump steer kit is a great idea. If lower than Euro Style (25.5 & 25" to the fenders openings.) Then stiffer springs become an insurance policy to keep the car from bottoming.

Adjustable rear spring plates can make setting ride height and corner ballancing easer. Same with adjustable sway bar lengths in the rear. The front sway can not be made adjustable. 86 only sway bars are thicker at 22/20 v 21/18.

Any 3.2 911 even with low milage probably could benifit from new bushings. If I had a 60k mile car I might flip the rear spring plates from side to side if on inspection they look to be in decent shape. The fronts probably need to be replaced and the ER rubber busnings or new factory A arms are the more stock way to go.

Just note that a full suspention kit on a low milage Carrera may limit your market if you want to sell. Me, I would find a kited car a plus but many avoid a modified car thinking it might have been abused.

[Dars]

Great question as I'm in the process of "revising" a '73 911T and was wondering the same question. So I'll add my questions...

I'm an LA driver and I'd like a lot better handling. I've been looking for clear direction on who makes the upgraded systems, where to buy and what should a good system cost? The back shocks have been replaced, but the front are still stock.

I really don't have time to track the car so I do what a lot targa owners do... pop the top and drop the peddle and I'd like to keep it between the lines and out of of the bumper in front of me.

Any advice would be greatly appreciated.

Thanks...

[Gordo2]

For a starting point, I would say you are good to go - I went overboard since I had the parts off - rebuilding everything I took off (brakes etc) and addressing parts that were easier to get at with the suspension removed (stuff like re-finishing heater flapper boxes).

Leave yourself plenty of time to do the project; that way if you find "while I'm at it" things you want to address, you can order the parts and do the job once.

Gordo