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It wasn't THAT difficult once the chassis was sitting and bolted on a frame, but I had a clean 993 on jacks on which I could make measurements.
First, I thought of making a steel or aluminum frame of my own that would respect the 993 anchor points for the arms. There were benefits: aluminum tubing would be lightweight and this would give the opportunity to increase camber etc.
However, this option requires to be really meticulous and relatively well equipped.
So I purchased the whole damn thing (like this: http://www.ebay.com/itm/Porsche-911-...02e4ed&vxp=mtr ) and it becomes more realistic for an amateur.
The one part that caused me trouble was the dampers, needing new housings in the 964 frame. I completely cut everything off (baffles around the engine bay) to give easier access and built them of 2mm thick chromoly sheets. Everything else was like playing with a kid's erector construction set requiring a lot of patience (cleaning, measuring, tacking, adjusting, welding... again and again).
I sold the car in 2012. I might be able to find pics.
To be honest, I would not do it again and would directly buy a 996. If someone's as crazy (or naive) as I've been, and wants to do it I have lots of parts left for the job. Maybe everything but hubs and spindles.
We're considering going that route on a '76 resto-mod project that we kicked off recently. (Converting an entire 993 rear sub-frame / carrier into the older chassis!)
I would appreciate seeing progress pictures / steps described / completed pictures (with the engine still out), or any other input that might help us. If anybody would be kind enough to do that, please PM them to me, or email them to me directly - if you would rather not post here publicly... The car will be getting a 964 engine and a G50 or similar gearbox.
Welp, looks like it's happening... Converting the entire 993 rear sub-frame and suspension (complete with mounting points and center chassis "hoop" section) onto the rear of this older g-body.
The plan (at least the current one), is to cut the entire "hoop" and forward sections of the side rails out of the 993 engine bay and to graft those into the rear of the '76
Last edited by Rasant Products; 07-08-2024 at 10:17 PM.
We're also cutting out the entire torque tube and boxing the ends in / reinforcing the chassis, to make room for a G50 gearbox. (I's actually a G64 4WD box from a 964 C4, that we are converting to C2 / 2WD...) More on that process later (you can see our custom tail-end casting in the one picture that is just one of the parts required to complete the conversion.
Starting weight for the G64 is 164-pounds (before conversion.)
Meh. Not much interest, I guess? Perhaps I'll start a new thread dedicated to the conversion and split off the transmission conversion part of it into a separate thread.
We're marching through it (converting the entire engine bay / rear frame structure from a 993 into an early G-Body 911 and bolting in the 993 sub-frame setup.)
The G64 C4 4WD 5-speed transmission, to C2 RWD (G50-ish) conversion is pluggin' right along as well. The end result should be a 1976 911 running an M64 twin-plug 3.6 litre NA motor on Rasant ITBs and an Emtron KV8 stand-alone engine management, with a fully-independent 993 rear suspension (coil-overs front and rear) and our C4 to C2-converted RWD 5-speed 964 transmission.
Why not "just buy a 993"...? Where's the fun in that? The goal wasn't to "make a G-Body like a 993" but rather to have an upgraded early car with early lines and more modern technology. The spirit of the resto-mod alive and well.
Last edited by Rasant Products; Today at 03:29 PM.
That’s actually very cool!
Are you converting a G64 to RWD?
Thanks!
Yes, we change the internals on a 964 C4 transmission with some custom-machined pieces, to convert it to a RWD / C2 configuration.
Then we have a custom case end-cover / cap that we have cast (it can be seen in the pictures from my previous post.) The casting sample is great and looks very OE with the rest of the transmission cases. Now it's just the 10-week wait for the production pieces from the foundry (the same company that casts our custom Rasant 996 GT3 Intake Plenums.)
Once we get our first batch back, it's perhaps another week or two to get the final inner machining completed and then we can start converting 964 C4 boxes to rear wheel drive only C2.
The conversion shaves around 28 pounds off of the G64 transmission.
Last edited by Rasant Products; Today at 03:29 PM.
09-11-2015, 03:23 PM
