911 Front wheel Heights

[Guest]

I am thinking of changing the ride height for 1988 3.2 as it seems the wheels have had an disagreement with the wheel arches.
Can someone tell what the correct height should be for this car, as my the difference between the tyres and the undreside of the wheel arche seems large[&:].

Any views would be of great help. as a lot of the cars I see around seem to be of a better help.
I know that other things will have to check over after the adjust ment has been made

 

[Guest]

what size tyres do you have?

 

[Guest]

Front tyre size is 205/55 ZR 16
Rear tyre size is 225/50 ZR 16
Thanks
Martyn

 

[Guest]

A quick way to measure your ride height is; from the ground, through the centre cap of your wheel to the highest point of the wheel arch. The front should measure anywhere from 24.5" to 26" as a rough guide. Mine is at 24.75 which is quite low. 25" would be good.

The rear should measure about 1/2 an inch lower using this same method.

I can't tell what you mean from your post. Does your car look too high or are the different sides at different heights?

Altering the front is a relitavely simple DIY job. Altering the rear is a lot more involved. Any changes would aso alter your alignment so this would have to be done again. Might be best goibg to a Porsche specialist for a quote.

 

[Guest]

Thanks for your reply.
I think the ride height looks to high, more so at the front than the back

 

[Guest]

Hi Martyn,

While lowering the front is dead easy (assuming there is some adjustment left in the torsion bar adjusters - 99% likely that there will be), lowering has the effect of changing the castor, camber and toe-in. The first two you can live with (may even have positive effectsif you like a little better turn in) but too much toe-in will do nothing but wear out the tyres. So, short answer is you need an alignment as well.

Any competent independent Porsche specialist should be able to lower the front in about 10-15 minutes - you might like to ask if they will do it for free with a four wheel alignment. Otherwise you could always just take a couple of turns out of each side of the torsion bar adjusters and then get the alignment.

One warning. The car will take a while to settle after the adjustment, so a drive round the block is required to get a true reading.

Pic of mine is attached. It is not as low as Chris's - more like 25 and a wee bit at the front. Note the slight nose down attitude. It should be 1 degree rake.

Richard

 

[Guest]

Thanks for the reply.
I have just checked the height of my fronts and it showing 26 1/2"
This seems to be way to high.
Regards
Martyn

 

[Guest]

yeah, that is pretty high. The rear of my car is far too high (due to new shocks) so I have this project penciled in pretty soon.

Buy this months edition of 911 & Porsche world to see whats involved in lowering our torsion bar cars.