Lower a 911sc 1979

[baclav]

Guys,

I have a 1979 911sc, and Im looking some information (technical) about lowering my car, since this cars doesent have springs im not shure how to do it, maybe im not going to do it personally but before taking the car to the garage, I want to know what are they gone to do, just in case. because here in mexico there are no to much certified Porsche mechanics.

Thanks guys for your help. Ill apriciate.

[Starless]

baclav, do a search. Tons of threads. And Wayne's book tells you how. If Porsche mechanics are in short supply all the more reason to get the books and do it yourself. I'm just learning and it not as hard as I thought. Plus a search will bring up just about anything you can imagine. I think that anything that can happen to a 911 has happened to some one on this forum.
Buena suerte.

[H20911]

Do not go too low...... it will take the fun out of driving it.

[baclav]

thanks Juan, I'llcheck that

[Par911]

Here's a tech article on bushing replacement that can give you a good idea of what you are in for.
http://www.pelicanparts.com/techarticles/911_suspension_bushings/911_suspension_bushings.htm

[baclav]

Thanks Pari, It has been of great help Thanks again, Im starting to know a little bit better Pelican parts!!!!

[temo79]

ive had my 79 for three months now. is lowered and im having clearence problems with the left front, so be aware of this. but it looks cool!

[Par911]

Baclav, de nada! Here is some more good information on lowering the rear: http://www.dorkiphus.com/porsche/viewtopic.php?t=1118

[Jim Richards]

Pari, when are you gonna lower that rallye 911SC of your's, boy?

[Par911]

Originally posted by Jim Richards
Pari, when are you gonna lower that rallye 911SC of your's, boy?

You just had to go there, didn't you Jim.
Lowered or not, my SC will still leave your 911E behind eating my dust.
MUHAHAHAHAHA
Seriously, after seeing Mackpipes ride height up close yesterday, I am motivated!! This week, hopefully the tail goes on. That leaves this weekend/next week for lowering. See you Saturday Jim.

Oops, I forgot you have to register to view the page in the above link Baclav.
Here is the information from the link:

Marc A.'s instructions on lowering rear suspension.

Jack up car remove wheels and remove lower shock bolts, the two bolts attaching the spring plate to the control arm and the 2 adjuster hex head bolts and nuts. Support the control arm. (btw if you have Bilsteins or gas charged shocks record the amount the car drops when they are removed as you will need to factor this in when you do the lowering measurements)

Push the spring plate down as far as you can and scrib a line along the top of the spring plate on the fender.

Measure from the ground to the lowest point of the spring plate (under the lower bolt hole that goes to the control arm) and record the measurement.

Remove spring plate replace bushings and center the adjuster on the spring plate. You will need a 36mm and 24mm wrench to loosen the adjuster bolt and set bolt.

When you go to replace the spring plate add the amount you want the car lowered to the first measurement and move the spring plate on the torsion bar splines until you reach that measurement.

Bolt everything together except the shocks. Drive the car slowly a few feet and check the hieght. If you have gas shocks attach them. Check ride hieght. You should be withiin 1/2" of your goal, which can now be fine tuned with the spring plate adjuster. When using the adjuster the car goes up when the plate goes up and visa versa. (This is opposite from the spring plate adjustment on the torsion bars . . . spring plate up car down).

Use this angle calculator to get proper ride height:
http://vintagebus.com/cgi-bin/spring.cgi
Welcome to the board! Try a search for more information.

[baclav]

Thanks Pari and all of you guys, I have been learning a lot this past weeks, so this weekend im going to start to work on the suspension Ill let you know.

[baclav]

Hi guys me again, I all ready check all the suspension and fortunetly a friend who have a race team help me with the scales and the alignment systems for racing so everything's ok right know and I finished the lowering thing !!!

Guys do you have any recomendation about headers and mufflers, wich brand, any tips, etc.?

Cheers!!!