930 transaxle in Ultima?

[GTR-TT]

I'm thinking of using the 930 Turbo gearbox in my Ultima since it seams to be the only box withing my budget than can hold the torque and power that my engine will deliver.

The information that I can source tells me than the Ultima drive shafts can be used but maybe the gear linkage has to be modified (I have center mounted shifter). What kinds of mods is needed to make this transaxle to work in our cars?

Best regards,

Mikael Kenson www.kenson.info/ubuild.htm

[B1 ECC]

Speak to Andycanam, He uses the Turbo Box!

[andycanam]

Yep I have the 930 box in mine... was a pain in the A$$ to fit but the adapter/ringgear and flywheel are all available from Kennedy.

The biggest development issues were the gearchange mechanism and the coversion of the cable clutch operation to hydaulic. Sourcing the correct drive shafts will also be a challenge as the 930 uses a different output flange bolt patern to the G50 so the std drive shafts won't fit.

I only went for this box due to it's strength and IMHO more favourable gear ratio's.... cost wasn't a factor and I would say I suspect I could have done a conventional G50 for less!

Rgds
Andy

[GTR-TT]

andycanam said:

Yep I have the 930 box in mine... was a pain in the A$$ to fit but the adapter/ringgear and flywheel are all available from Kennedy. The biggest development issues were the gearchange mechanism and the coversion of the cable clutch operation to hydaulic. Sourcing the correct drive shafts will also be a challenge as the 930 uses a different output flange bolt patern to the G50 so the std drive shafts won't fit. I only went for this box due to it's strength and IMHO more favourable gear ratio's.... cost wasn't a factor and I would say I suspect I could have done a conventional G50 for less! Rgds Andy

Thanks for your answer. I just picked up a 930 transaxle

The Driveshafts fit without a problem and it seams that the bolt pattern on the bellhousing is the same as the G50. Strange...

However it's obvious that the shifter linkage needs modification since the 930 gearshange works like a mirror compared to a G50. Since I have center gear shift linkage the simple solution would be to let the shaft exit on the passanger side of the engine and just live with that first gear is where second gear usually is. Like so many sports cars had in the past...

How did you build your linkage? Did you fit the hydralics inside the bellhousing or on the outside? Pics would be interesting...

Thanks,

Mikael Kenson

[andycanam]

GTR-TT said:

Thanks for your answer. I just picked up a 930 transaxle The Driveshafts fit without a problem and it seams that the bolt pattern on the bellhousing is the same as the G50. Strange... However it's obvious that the shifter linkage needs modification since the 930 gearshange works like a mirror compared to a G50. Since I have center gear shift linkage the simple solution would be to let the shaft exit on the passanger side of the engine and just live with that first gear is where second gear usually is. Like so many sports cars had in the past... How did you build your linkage? Did you fit the hydralics inside the bellhousing or on the outside? Pics would be interesting... Thanks, Mikael Kenson

Thats funny as the two 930's I have have a diffent bolt patern to the G50, (I will be going out in the garage later to check though).
The drive shaft flanges are also different, this may be odvious but the drive shafts from Ultima have different size CV joints each end.
My 930 box's both have the same pattern as the ones on the hubs so the drive shafts needed to be the same both sides.

I can send you pics of my clutch mechnism, E-mail me through this site and I will reply.

One final thing, would 1st really be were 2nd is normally or will it end up were 4th is? (ie totally reversed h pattern.)

Regards
Andy

[GTR-TT]

andycanam said:

Thats funny as the two 930's I have have a diffent bolt patern to the G50, (I will be going out in the garage later to check though). The drive shaft flanges are also different, this may be odvious but the drive shafts from Ultima have different size CV joints each end. My 930 box's both have the same pattern as the ones on the hubs so the drive shafts needed to be the same both sides. I can send you pics of my clutch mechnism, E-mail me through this site and I will reply. One final thing, would 1st really be were 2nd is normally or will it end up were 4th is? (ie totally reversed h pattern.) Regards Andy

I haven't measured the bolt pattern on the G50 since the bellhousing on my G64 transaxle is destroyed but it sure looks the same. I guess I will make my own adapterplate anyway or just buy it from kennedy so the boltpattern doesn't matter that much.

I tested the axles on the 930 yesterday and the fitted perfectly. Very strange, maybe the gearbox I found where altered to fit a G50 conversion or something?!

Since I only have had the transaxle for a few houers I haven't done all the thinking regarding the linkage yet but I guess that my first thouth was wrong regardig the "twisting" motion. It doesn't change buy just moving the linkage from one side to the other

Hmmm I must do some more thinking...

Please send pics of your solution to [e-mail]

Regards,

Mikel Kenson

[gtrclive]

The drive shaft flanges can be changed on the 930 box, to fit either Large or small CV joints. That explains the shafts.

[andycanam]

GTR-TT said:

The Driveshafts fit without a problem and it seams that the bolt pattern on the bellhousing is the same as the G50. Strange... Mikael Kenson

I checked the bellhousing bolt patern on the spare 930 box and the GT3 box (same as G50) that I have and you are correct I think they are the same.
Admittedly I only made a rough patern from one and tried it on the other but it did seem to fit perfectly.

I'll take some pics of the clutch servo linkage this week and send them to you.


Rgds
Andy

[Patriq]

Mikael !

Can I only ask you?, I'm saving funds, planning engine and so on for a build.
I've also had contact with swedish authourities for registration.

How are you registering the car ?
The only way I've found is as an amateur built car, and then the power to weight ratio can only be 15kW/100kg. It seems as if your opting for more power than that....

Personally I don't have ambitions of such a powerful car as 600+, or even 300+. In my case I don't think the cost and consequences will be worth the effort.

And it's none of my business how you manage to get the car on the road. But I was just wondering if there are other ways to register the car in Sweden, other than as a amateur built car through SFRO ?

Good Speed !

[gtr-tt]

Patriq said:

Mikael ! Can I only ask you?, I'm saving funds, planning engine and so on for a build. I've also had contact with swedish authourities for registration. How are you registering the car ? The only way I've found is as an amateur built car, and then the power to weight ratio can only be 15kW/100kg. It seems as if your opting for more power than that.... Personally I don't have ambitions of such a powerful car as 600+, or even 300+. In my case I don't think the cost and consequences will be worth the effort. And it's none of my business how you manage to get the car on the road. But I was just wondering if there are other ways to register the car in Sweden, other than as a amateur built car through SFRO ? Good Speed !

The only solution is to get yourself two engines, one for show and one for go...

[Patriq]

My thinking as well !

I might be getting my hands on either engine and/or gearbox from Maserati, Lamborghini or Ferrari. Depending on what works in the chassi. I'm hoping for quite reasonable prices.

I don't expect to be able to register it with any of these engines, but it would be nice to have a engine for track days at least.

Has anyone used a gearbox from the transaxle Alfa Romeo 75 3.0 /ES-30 with LSD and oilcooler for the gearbox on an Ultima ? I have complete drivetrain from these and the experience from overhauling them, so I have been playing with the thought of using it.

[ultimapeter]

check out the ultimaclub website thers a n alfa powered car on there

[Patriq]

Yes, I thought of the club. But as of yet, I haven't convinced myself that I want to pay the fee just yet.

Are there any other Swedish builders here other than Mikael Kenson ?
(hope to be able to suddenly be passed by him on the free-way soon.....)

[maajola]

Yes there are! I am currently building an GTR..

Ps. Me and Mickael are cheering garage Ds.

Patriq said:

Yes, I thought of the club. But as of yet, I haven't convinced myself that I want to pay the fee just yet. Are there any other Swedish builders here other than Mikael Kenson ? (hope to be able to suddenly be passed by him on the free-way soon.....)

[Patriq]

That's encouraging !

How long have you come ? Did you order parts at the same time ?

Hope it's ok if I mail you off-line att occations to learn from your experiences, most specifically on swedish legislation, freight, and so on ?!

I have an other car in the garage where I'm planning my build, so I plan to start somewhere around late summer/fall this year if all goes well.

Need to assemble that one first, it's all in pieces at the moment.......

Good speed !