My car is nearly done now, and it'll soon head for a full alignment. Since it's not going to cost me anything, I thought I'd try some new settings... for the front, -1 camber and caster set to max. Rear, -1.5 camber. Comments? Also, how much toe-in should I get, front/rear..? A quick turn-in would be nice, but I don't want to sacrifice straight line stability for that - this is mainly a street car after all..

Thanks!!

ps - got rid of the 19" wheels, trust me, they sucked <img border="0" title="" alt="[Frown]" src="frown.gif" />

 

Bump..

On a web page at <a href="http://members.rennlist.com/944sandmore/learn944.htm" target="_blank">http://members.rennlist.com/944sandmore/learn944.htm</a>:
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">For alignment specifications of a 944 family car with factory suspension I would start with (NOT WITHIN FACTORY TOLERANCES) -1 degree camber front, -1.5 rear. 0 toe all around. Set front caster at 3 degrees 45' with 17" rims, 3 degrees even for 16" or less. </font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Anybody run anything like this with 18" wheels? Comments?

 

I've been trying to figure out the best alignment for mostly autocross driving, but also the occasional DE and some street driving. So far, I think these setting have gotten the most support:

Front:
-2.5 Camber
2.6 Caster
1/16 toe out

Rear:
-1.5 Camber
1/16 toe in

Anyone care to comment? BTW, this is for a 968.

Tom

 

I find that without LSD, anything more than 1.25 degrees negative camber on the rear hurts my ability to accelerate out of corners.

On the flip side, I run 1.5 degrees negative on the front as a mild setup for street/autocross. Any more positive than that, and the tire rolls over too much.

 

I have an LSD on my 968 (stock suspension, and my track tires are Kumho Victoracer V700, 225-17, 255-17). The LSD should allow more negative camber because the penalty it puts on the inside tire won't matter as much, right?

Do you think -2.5 is too much for the front? Seems like with the high steering angles you get in autocrossing, quite a bit of negative camber would be warrented.

Thanks again,
Tom

 

how much time is spent on the street, if you set the front toe out you will be making constant steering corrections, the car will not hold a line. Make sure that you have at least 5' toe in per side in the rear. Ideally set camber by reading tire temps.

 

"Killer street/track alignment? "
"I've been trying to figure out the best alignment for mostly autocross driving, but also the occasional DE and some street driving."

No such thing!!! ANY and ALL alignment settings will have a compromise of some sort if you wish to use them for both street and track use. Autocross is even worse because it requires an even more extreme alignment than track use.

For best tire-wear and street usage, use the middle of the range of alignment specs listed in the manual.

For track use, something like this:

Front:
-3.0 Camber
3.5 Caster
1/32 toe in

Rear:
-2.5 Camber
1/32 toe in

For autocross, it's would be more like this:

Front:
-3.5 Camber
2.5 Caster
1/16 toe out

Rear:
-3.0 Camber
1/32 toe in

The difference between the street settings vs. either the track or autocross alignments is simply dramatic in lap times; can be 2-3 seconds per lap!

 

And I can tell you from experience, that no amount of negative camber will make up for the car being sprung too softly for track driving. I'm grinding through my 3rd set of MXX3's now. The only cure will be to ditch the stock "floppy car" spring rates, lower it, drop in the Fabcar a-arms, put in big sway bars, and bolt sticky rubber on.

Unfortunately, it's a slippery slope down that handling-improvement hill...

 

I still say non-LSD AutoX use, stay at -1.25 camber on the rear.

YMMV, of course.

 

Oh yeah, forgot to mention that I've got LSD, 968 M030 sways f/r and 250# welt springs up front.

Thanks for the input, I'll try a some sort of a compromise between these tips and we'll see how it works <img border="0" title="" alt="[Wink]" src="wink.gif" />