Question about lowering...
10-22-2003, 01:01 AM
#1
Race Car
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Join Date: Sep 2003
Location: Orfordville, WI
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Question about lowering...
Exactly how low are the 951's supposed to be? I talked to another member on the phone the other day and it sounded to him like my car had been lowered. Lets just say I cannot go over hardly any speedbumps without bottoming out...ground clearance is maybe an inch or two....
10-22-2003, 01:23 AM
#3
Burning Brakes
Join Date: Mar 2003
Location: Tulsa Oklahoma
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All US 944/951's had the rear suspension raised to meet US bumber height regulations. It is possible to lower the rear of the car by adjusting the eccentric bolt on the rear suspension. I am not certain of the exact distance the car will be lowered by doing this. The only way to lower the car any more than that in the rear is to re-index the torsion bars. That is very time consuming and not very easy.
The front can easily be lowered by replacing the coil springs.
The front can easily be lowered by replacing the coil springs.
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10-22-2003, 11:11 AM
#9
Racer
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Check and see what the springs look like on the front. Find out the color and see if the have any other marks on them. Check the eccentric bolt on the rear and see where it is in the range of travel. This will let you know if the car has been lowered. Plus unless they have repave the roads up there I used to bottom out the crossmember on my old camaro all the time oven doing the speed limit.
10-22-2003, 01:50 PM
#10
Three Wheelin'
Stock ride height measurements, 951 non-M030:
Front: US: top of front bumper 533 +/- 20 mm from road.
Alternate suspension height measurement (only for cars with M030 height-adjustable sfront suspension: Bottom of caster block mounting bolts (bolts holding rear pivot of lower suspension arm to frame) 130 mm +/- 10 mm below centre of wheel.
To measure front height, measure height of centre 0f wheel above road (approx. 300 mm). Subtract ride height specification (130 mm). Result (Approx. 170 mm) should be height of bottom of bolt head from road.
Rear:
US: Top of bumper 522 mm +/- 20 mm from the road surface.
ROW: center of torsion bar 3.5 mm +/- 10 mm lower than center of wheel.
Front: US: top of front bumper 533 +/- 20 mm from road.
Alternate suspension height measurement (only for cars with M030 height-adjustable sfront suspension: Bottom of caster block mounting bolts (bolts holding rear pivot of lower suspension arm to frame) 130 mm +/- 10 mm below centre of wheel.
To measure front height, measure height of centre 0f wheel above road (approx. 300 mm). Subtract ride height specification (130 mm). Result (Approx. 170 mm) should be height of bottom of bolt head from road.
Rear:
US: Top of bumper 522 mm +/- 20 mm from the road surface.
ROW: center of torsion bar 3.5 mm +/- 10 mm lower than center of wheel.
10-22-2003, 03:43 PM
#11
Three Wheelin'
Join Date: Apr 2003
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Are you running stock sized tires? Smaller tires will lower the car.
When I was at a local DE, I noticed Jeremy Himsel (a rennlister) and his friend
(Vic I think) had about an inch of difference in ride height, but they both said their cars were stock, at least the relevant parts.
Mine is lowered to the minimum recommended by eXotic motorwerks, and the only problem I have on speed bumps is my stiff springs and t-bars.
Are the speed bumps in your town very tall?
When I was at a local DE, I noticed Jeremy Himsel (a rennlister) and his friend
(Vic I think) had about an inch of difference in ride height, but they both said their cars were stock, at least the relevant parts.
Mine is lowered to the minimum recommended by eXotic motorwerks, and the only problem I have on speed bumps is my stiff springs and t-bars.
Are the speed bumps in your town very tall?