924Board.org

[Ian89C4]

Hello all,

Newbie question here. I have an '81 924 I am prepping on a tight budget for Auto X / eventual SCCA ITA/ITB racer. I have many questions, but the one puzzling me right now is how to lower the rear of the car? I don't have much experience with torsion bars.

My current plan is to put Weltmeister sport springs on the front of the car along with Koni sport shocks - hopefully lowering the front around 1.5 inches and firming it up a bit.

For the rear - I am puzzled. I plan on putting Koni sports on the back, but how do I actually lower it without breaking the bank on a full coil-over kit? Or is that the only way?

Thanks in advance!!!!

Cheers,
Ian
_________________
Ian Edgerly
North Carolina

Current:
1981 924 SCCA/ChampCar Weissach Race Car ("Serenity")
1987 924S ChampCar Endurance Car ("Der Weg")
1980 924 Euro ("Wahala")

[fiat22turbo]

First, determine the spring rate you want in the rear:

http://www.924board.org/viewtopic.php?p=238971#238971

Second, buy some stiffer torsion bars:

http://www2.cip1.com/searchresults.asp?cat=739

or

http://www.pelicanparts.com/catalog/shopcart/944M/POR_944M_SUSprf_pg1.htm#item2

Third, remove the rear suspension and install torsion bars:

http://clarks-garage.com/shop-manual/susp-06.htm

If you do your homework right, you'll be able to get them right the first time. Otherwise you'll have to pull the suspension to reindex the bars again. There are ways of making them easier to reindex, but that requires cutting holes in the body work, etc.

More information:

http://www.924board.org/viewtopic.php?p=238971#238971
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[Ian89C4]

Awesome!! I will give that article a read and see which Torsion bars I will go with. I will probably have more questions later.

Cheers,

Ian
_________________
Ian Edgerly
North Carolina

Current:
1981 924 SCCA/ChampCar Weissach Race Car ("Serenity")
1987 924S ChampCar Endurance Car ("Der Weg")
1980 924 Euro ("Wahala")

[joecitizennn]

A 924 can be lowered practically to the ground without touching the torsion bars, but it requires some mods to the springplates and I feel a little too taboo to describe here. You will also have to reset your other rear alignment values, especially camber.









_________________
87 924s
88 924SE gone
447 hp cgt clone
87 924S gone
84 944 sold
83 944 sold
89 turbo S LSD, ABS etc
86 951 white rocket
85 944 sport everything.
84 944 sold.
87 944 sold

[fiat22turbo]

Doesn't fix the lack of spring rate necessary to not run out of travel when driving quickly, like on a track or on an AutoX course.

New Torsion bars and/or adding coil springs are the only ways to increase the spring rate.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[joecitizennn]