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This post goes out to all those with some kind of idea of the process of converting the 3 Speed (1981) RoW 928 to the 5 speed manual. I know that there is a fair amount needed to swap over to get the car to run on the replacement trans. I remember seeing a post a few years ago advertising the sale of all running gear to complete the swap in a package, something like 1200usd (very cheap by today's standards by the looks of it).
By all means if anyone does have the parts required and would be willing to give me a figure I'd be grateful
Are there any compatibility issues that come with fitting the US 5 speed to an RoW Auto? I have noticed a lot of US 5 speed gear boxes for sale and wondered.
Also anyone with success stories of the swap. Please don't hesitate to leave a few comments. I know that the Auto trans is sworn by from most, but I'm missing the feeling of the gear change and control over the rev range that only comes with a manual.
We'll I'm not afraid of getting my hands dirty so I will tackle as much of it as I can on my own but I don't have a heck of a lot of experience, but I am learning as time goes on.
I suppose it might depend upon the thoughts of others who've done this sort of thing before and whether it is regarded as a job that could be reasonably attempted on your own. Hence the post
If the car is very original and has future collectible value, I would not do it. Save that car and go buy the 5-speed you want.
If it's already a higher mileage, well worn but still a solid platform......especially an 80-84 US car......I could see doing this.
Colin (aka Lizard) did a conversion using a Wilwood floor mounted clutch pedal. I really like this idea since except for a couple of holes, the car remains "stock".....and could be converted back.
Something to consider...... I'm working on a similar change to install such a clutch pedal in my replica Cobra to replace the cable system.
Haha well in that case I may shelve the idea for a while. The car has just clocked over 225,000km so it's not exactly low mileage and has been quite neglected from its previous owner. I am in the process of bringing it back to life. Some photos for reference.
the previous owner did try to pass it off as an S model and improperly fitted the rear spoiler without a proper seal resulting in rain water pooling underneath and rusting. Hence the rust on the boot hatch :/
the previous owner did try to pass it off as an S model and improperly fitted the rear spoiler without a proper seal resulting in rain water pooling underneath and rusting. Hence the rust on the boot hatch :/
There is no proper seal....left out In the rain and dust the channel will always get packed full of mud and after many years corrosion will eat up the galvanized steel on all 928s.
the engine need not come out to rivet and glue (yes structural adhesive) the mount for the clutch master cylinder. It is inside the cab so all forces simply push the patch panel against the firewall..... not a big deal if you have the patch cut from a donor car.
Bigger issue is getting all the parts especially if you want the later 85 and up borg warner syncro trans. Most all early gear boxes are going to have worn internal parts and probably will not shift into second gear very well.
all of which says you are better off buying a running driving 5 speed, next best a crashed 5 speed donor car to get all the bits from assuming that it was reasonably drivable before the wreck.... buying up bits and pieces and doing it yourself exposes you to the risk that the used 30 year old parts are in good shape or NOT .
05-15-2015, 11:20 AM
Ball park cost on Auto to 5 Speed Conversion
