1985 Carrera factory alignment specifications.

[SilberUrS6]

After doing an extended search, I found out a LOT about aligning these cars. Wow. If I ever do any HPDE, I know EXACTLY where to go to get ideas.

What I didn't find were the straight specs from the factory. Now maybe they are in Bentley, and I just haven't found them, but if they are hiding there, maybe a not-so-subtle hint about where in Bentley they might be found???

We don't have a shop around here that can corner balance and align - only a regular alignment shop. I have turbo tie rods waiting to install, but first I need to know what the specs are, AND if the local shop can even do the align job.

This car is stock and just a street car, with some small amount of spirited driving thrown in. The tires will be Kumho Ecsta ASX no-season tires, and I'm looking to get some reasonable life out of them. No DE are planned at this time. Maybe someday, but that's a new conversation. For that kind of car, what do you think my specs should be? And why? (I'm still learning here, so any information I get is great.)

[wildcat077]

Eric,

A good street setup would be -1.0 front and -1.5 rear negative camber or even better -1.5 and -2.0 if you can achieve it, along with max front castor which will vary between 5.7 and 6.0 depending on your car and 1/16 toe in at all four corners.

Of course,should you decide to go play DE with your car eventually you will need more aggressive camber all around and maybe 0.0 or 1/32 toe out in front.

Any decent shop should be able to get those numbers for you !

Cheers !
Phil

[SilberUrS6]

Originally Posted by wildcat077

Eric,

A good street setup would be -1.0 front and -1.5 rear negative camber or even better -1.5 and -2.0 if you can achieve it, along with max front castor which will vary between 5.7 and 6.0 depending on your car and 1/16 toe in at all four corners.

Of course,should you decide to go play DE with your car eventually you will need more aggressive camber all around and maybe 0.0 or 1/32 toe out in front.

Any decent shop should be able to get those numbers for you !

Cheers !
Phil

Thanks, Phil - I appreciate that. Now - the "why" of the castor on the front? I understand the camber and toe, but not the castor. And I am guessing the numbers you gave are all in degrees?

[Flat Six]

Eric: The 5.7-6.0 degrees caster that Phil mentions is really the max you'll get on a stock Carrera when strut mounts are pushed all the way aft.

Max caster (all other things being equal) will improve straight-line tracking at speed.

Per your initial question, factory (per Bentley p. 440-7) alignment specs are:



Good luck

Dale

[SilberUrS6]

Originally Posted by Flat Six

Eric: The 5.7-6.0 degrees caster that Phil mentions is really the max you'll get on a stock Carrera when strut mounts are pushed all the way aft.

Max caster (all other things being equal) will improve straight-line tracking at speed.

Per your initial question, factory (per Bentley p. 440-7) alignment specs are:



Good luck

Dale

Thanks, Dale - I appreciate the explanation, and the location of the info. I'm going to go look it up right now.