backdate or modify?
 

take a 71 tub which has already been stripped and it basically perfect condition, cut out a new pan for a later model 6 speed transaxle and 993 tt engine and full coilover all the way around

or

"backdate" a 1990 911 964 tub which already has the correct engine and tranny mounting point and suspension mounting points?

option 1:
http://img.photobucket.com/albums/v175/absolom/web1.jpg
http://img.photobucket.com/albums/v175/absolom/web.jpg

option 2:
http://www.911pcar.com/thumbs/phpThu...16e6cac40c.jpg
http://www.911pcar.com/thumbs/phpThu...6feae9e57b.jpg

The successful option:

Backdate the ’90 and restore the ’71 to original.

Best,
Grady

Once a pickle, never again a cucumber.

What Grady said.

so all the "71" parts will work on the 90?

many will

the 964 tub is much stiffer than the early one yet weighs only about 40 lbs. more

it is already fitter for coil overs and you can run wider wheels/tires with no mods needed; it is already rustproofed too - moreover, if you don't like the blobby look, you can backdate it to look like an early car


if the '71 is an E or an S tub, then it is worth money

is there any info out there detailing the "backdating" process or which parts swap with what?

The previous owner of my car took a 1971 911S and made a short hood. I guess now I have no reason to hold back on the modifications but there is just something about the long hood.

I think you should make a 911ST replica with a screaming 2,2 engine and a proper road-racing 911 transaxle. The 1971 is a very special, unique model year. You should celebrate that. :)

Or backdate the 964. Do not cut the '71. You can fund your project with it.

it's really an either or

i think we're gonna go with the 90 and backdate it

search for a thread by a shop owner in TN - Nashville, IIRC

his name might have been PorscheDoc or something similar

or just search on 964 - this is a 911 site so there aren't a huge # of 964 posts

it's a T

An old thread

http://forums.pelicanparts.com/porsche-911-technical-forum/318580-zuffenhaus-c2-72-rsr-project.html

Ed