Tremelune

My '84 was rock solid at 125. After a few years when I got back into it, it did not inspire confidence at highway speeds...steering wheel was not level...A four wheel alignment solved all problems.

cambria

I drove my 83 944 137 mph on the Autobaun one week after taking delivery from the factory and the car was very light. No sudden moves at that speed.

Mark Parker

They are actually 6 mm bolts.(6x1.25 IIRC) The hex is 10 mm. I don't think you'll get the wrong ones because a 10 mm will look way too big for the job.

Bob S. 1984 Silver

You're all correct on the bolt size. I was quoting the head size, not the threaded diameter. When taking something apart, I usually think in terms of the wrench size rather than the threaded part. For example I know that a 1/4-20 takes (usually a 1/2 inch wrench.

Sorry if I caused any confusion; just my shorthand.

Bob S.

Skip

[quote]Originally posted by Matt R. Olde:
<strong> Although lowering the car makes it handle better, ...</strong><hr></blockquote>

Uh-oh, if Danno hears you he'll be over to smack you with his calculator.

My vote for unstable high speed is *a fact of life* - more to do with proper tire inflation and *good vs. bad* tires than any aerodynamics. A car would have to be grossly non-aerodynamic to be *noticably* affected by a speed of 100mph (like my Minivan for example - or any model Jeep )... the 944 is not such an animal. I'd look to the tire construction/rating and pressures first.

If it is aerodynamically curable, maybe bolt the nose off an F1 car to the bumper

Skip

Dave in Chicago

My stock '88 NA tracks solid and turns solid at 100+ (ex. kink at Road America). Tires, pressures, rake (is the fr/rr ride heights about right), and pan underneath engine would be my sequence of checking. This assumes the wheels are the right size/offset, tires approx right size and of the fairly high performance variety. This also assumes all suspension parts are mechanically sound (bearings, struts, sway, spindles).

Keep the shiny side up,

JB '87 944

Great comments to my question. Thanks to everyone for contributing. I'll be following the recommendations. I didn't even know there was a pan!...I definately don't have one. P/O must have removed it. Whew...a new lesson learned every day...I hope I can keep up with all of this.
jb <img src="graemlins/xyxwave.gif" border="0" alt="[bigbye]" />

Hans

Hi Johnny, welcome
I would check the wheels first, wrong offset does funny things here.
If everything else mentioned above (tire pressure, suspention, alignment etc) does not cure the problem, you might want to have your power steering checked.
IIRC it should be "speed sensitive" (less power at higher speeds). If something is wrong here, you will get that flimsy light steering as well.
TakeCare

jim968

One more 'to check' item comes to mind. Wheel bearings, both front & rear... but particularly front. Jack up one corner at a time, grab the tire, try to wiggle up & down & side to side.

Jim, More coffee!!! <img src="graemlins/drink.gif" border="0" alt="[cherrsagai]" />