Who's lowered? How low? Using raised spindles or no?

[Flieger]

I hear the POC guys use special shortened torsion bars to get even higher rates, since coils are not allowed in the class.

[tirwin]

This is how mine looks lowered.



21/28 torsion bars
Polybronze bushings in the rear
ER spherical bushings in the front
Bilsteins re-valved to match torsion bars w/ digressive curve
Turbo tie rods with adjustable bump steer tie rod ends
Spindles raised 25mm
ER strut brace
Adjustable rear sway bar drop links

Car is on 16" Fuchs but I intend to get a set of 17's one day. I have kept the stock sways for now. That is probably a future item.

As long as you don't intend to go too low, you can get good enough results for street driving for very reasonable money. It depends on how far down the rabbit hole you want to go.

I love how the car drives now but the nerf bars scrape if I am not careful.

[panzerfaust]

Originally Posted by winders

No. Most run at least 33mm rear torsion bars and some run stiffer than that.

yea... i think so too

[Dmitry at Pelican Parts]

Hey everyone!

In case anyone needs technical info on lowering their 911. I've attached a link to one of our tech articles that goes into detail about the pros/cons and overall specs. Reference this at will and best of luck to all!

Lowering the 911 Tech Info. - Lowering the Porsche 911 | 911 (1965-89) - 930 Turbo (1975-89) | Pelican Parts DIY Maintenance Article


-Dmitry

[Discseven]

Originally Posted by tirwin

There are two issues with lowering. Limited suspension travel and bump steer.

Lowering will decrease how far the suspension can compress. You are going to feel it hit the bump stops. Raising the spindles compensates for this. Ideally your struts should be matched to the torsion bars.

Lowering also induces bump steer because it changes the A-arm geometry relative to the steering rack. If you were tracking the car this would be a greater concern. The side effect of uncorrected geometry is you will feel the steering wheel snap sharply left/right at times (going over a speed bump).

You may also get tire rub so you could have to roll your front fenders.

You will certainly need to get the car re-aligned afterwards.

When I bought my car it was lowered to Euro height with no compensation. I completely refreshed the suspension and I'm below Euro height now. I much prefer the handling now over the way it was before but it's hard to make a good apples/apples comparison when you have worn bushings and struts as a starting point.

My advice for a street car is to not worry about the look, replace the worn out bits in the suspension, match your struts to your torsion bars and call it a day. You'll get better handling and better tire wear and spend a lot less money.

Tim... would like to see profile pic of your car if you would post pls.

[tirwin]

Karl,

Here you go... It's hard to see at a distance with a black car because of the lack of contrast so I took a couple of close ups.

[Nordwest]

This is my SC. Lowered to 24 1/4 f and 24 1/2 r with 22/29 torsion bars, carrera sway bars, bump steer kit and stripped 300 lbs out of it. I did all this years ago when I was tracking it a lot. It is fun on the track and back roads but not very fun for daily driving. The ride is stiff and it's quite easy to bottom out.
Dave