924Board.org

[chris79]

Now my Engine is ok, I would like only lower my car, but my budget is low, it's possible to install lower Spring with original suspensions ?
And rear it's easy to lower torsion bars by itself? Thanks
_________________
Porsche 924 2.0 na 125hp (1979) euro
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Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro

[fiat22turbo]

Leave it alone, save your budget and do it once and correctly.
_________________
Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose)

[morghen]

You can use lowering springs on fronts and use the factory adjustments on the rears to lower it...but...its difficult and brings problems.

Depending how low you want to go you have to do more or less work on the rears.
If you only want 10-15mm then its fairly easy but still brings problems.
If you want 25-30-50mm then you have more work and more problems.


The problems:

1. If you get a lot lower spring than you get not enough suspension travel, meaning bumps and holes go directly to the chassis and the car will be jumping around the road when you go over a bump.

2. if you lower it just a little, like 10-15mm max then its ok for the fronts but for the rears you have to adjust from the eccentric nuts. Thats also ok but the problem is you need to get a 4 wheel alignment after that.

3. if you lower it a lot then you have problem nr1 + you have to take off the whole torsion bar beam on the rears and adjust height...and then...guess what...you have to do a 4 wheel alignment.

New cars have no or very little wheel alignment systems...on the rears most cars have fixed geometry...but the 924 has adjustable...the problem is that you cant find any shop that knows how to and will align the wheels and in the end you get a car that jumps on the road, does not go straight and wears tires quite fast and not equally.

so...leave it alone i would also say.
_________________
Supercharger and EFI kits
https://www.the924.com

[chris79]

Ok I leave it alone, but I cant find any shop that knows how to and will align the wheels ?? It's possible ?
_________________
Porsche 924 2.0 na 125hp (1979) euro
------------------------------------------------------
Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro

[morghen]

[chris79]

Porsche classic center can't made this work?
_________________
Porsche 924 2.0 na 125hp (1979) euro
------------------------------------------------------
Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro

[morghen]

[chris79]

I have to consider if behove to modify asset of 924 na.
_________________
Porsche 924 2.0 na 125hp (1979) euro
------------------------------------------------------
Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro

[chris79]

I decided to change asset of my car in this configuration:

Front:
-spacers 7mm
-lower Spring 20mm
-sport shock absorber

Rear:
-spacers 20mm
-torsion bar lowered 20mm
-sport shock absorber

I think costs without work about 600 euro.
I would like Know if 4 weel alignement is strictly necessary after I lower torsion bar.
Thanks
_________________
Porsche 924 2.0 na 125hp (1979) euro
------------------------------------------------------
Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro

[snakoil]

if you don't do a 4 wheel adjustment you will most probably have camber issue with your wheels and kill the tires currently on the car.
normaly this means the inner portion of the tires will be wearing a lot faster than the exterior side and you will need to change tires more often.

this could also affect the handling of the car as you will have a smaller contact patch
_________________
1979 924 NA

[Harm]

Flip through the Yellow Pages and find the oldest/best tyre shop in your town.
Place a call and inquire if they know how to work on a transaxle Porsche
Or have experience on the old beetles rear suspension.
Tell them you need an alignment and want to make an appointment.

Before you take the steps above, you make sure all bolts on front and rear suspension are serviceable

In my case the alignment took less then ~15 minutes and less then €50,
it was a major improvement.

We don't decide for you
All we have is advice.
Do your on math.
Kind regards,
Harm.
_________________
Porsche 924 NA 1982 LY7A/A3A3 _ Greater driving pleasure never harmed anyone.

[chris79]

Ok thanks, I think buy parts on ebay and then go to mechanic for installation, it's possible that total amount is about 1000 euro.
_________________
Porsche 924 2.0 na 125hp (1979) euro
------------------------------------------------------
Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro

[chris79]

And if change only shock absorber with koni without lower car and without stabilizer bar, the roll (eccessive in na not onroad but on track) can improve ?
_________________
Porsche 924 2.0 na 125hp (1979) euro
------------------------------------------------------
Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro

[snakoil]

maybe you could save up by looking at the used market.
I see often sport springs or struts on rennlist and pelicanparts.
_________________
1979 924 NA

[chris79]

yes, but shock absorber used is a risk, this parts can be used for a lot of miles.
I would like buy new parts, I made this work one time, my car go for about 1000 km for year.
_________________
Porsche 924 2.0 na 125hp (1979) euro
------------------------------------------------------
Alfa Romeo Spider "Duetto" 1.6 104hp (1986) euro