UN1 gearbox for drag...

[JLaw]

Hi im looking for some information about fitting the renault un1 gearbox to a bug. I have heard that there in a green european bug that used to run type 4 turbo i think now runs subaru engine that has a UN1 box. It runs nines if im correct. anyone got any info about this subject?

Cheers John.

[tikimadness]

Hi im looking for some information about fitting the renault un1 gearbox to a bug. I have heard that there in a green european bug that used to run type 4 turbo i think now runs subaru engine that has a UN1 box. It runs nines if im correct. anyone got any info about this subject?

Cheers John.

Hi John,

The guy you mean is Robert Jongen www.rojoracing.com
He was running a UN1 with the diff welded to use as a spool.I am using a UN1 now in my oval.
It is a lot of work to get one to fit but it works .

You have to cut up the torsionbar in the middle because of the length of the UN1 and make custom brackets.You also need an adaptorplate to mount a T25 bellhousing to the UN1.
The rest is straight forward.

If you want I can post some pics of my car.

Michael

[JLaw]

Michael,

Thanks for the info and I'd love to see any pics of your build up! I have a very solid original 63 that I am planning the work for, I have a few of the un1 boxes available too, which did you decide to use as there are a few different ratios available. I am thinking the renault 25 turbo or atmo gta alpine final drives maybe be best, what are your thoughts?

I know the boxes are very strong but have you found any weaknesses in the design? I am hoping to drag race with the box and I dont want to have to keep rebuilding boxes. what have you done about axles etc? I would be very appriciative of any advice.

How did you go about the adaptor plate, did you machine something up yourself?

Cheers, John.

[tikimadness]

I will post pictures tomorow

Michael

[mychatype3]

Michael,

Thanks for the info and I'd love to see any pics of your build up! I have a very solid original 63 that I am planning the work for, I have a few of the un1 boxes available too, which did you decide to use as there are a few different ratios available. I am thinking the renault 25 turbo or atmo gta alpine final drives maybe be best, what are your thoughts?

I know the boxes are very strong but have you found any weaknesses in the design? I am hoping to drag race with the box and I dont want to have to keep rebuilding boxes. what have you done about axles etc? I would be very appriciative of any advice.

How did you go about the adaptor plate, did you machine something up yourself?

Cheers, John.

Hello John,

Send a e-mail to info@deboxer.nl he can help you with a adaptor plate (he has them in stock  )
Greetings mycha

[Airspeed]

Hi im looking for some information about fitting the renault un1 gearbox to a bug. I have heard that there in a green european bug that used to run type 4 turbo i think now runs subaru engine that has a UN1 box. It runs nines if im correct. anyone got any info about this subject?

Cheers John.

He runs the 9's with a porsche 930 box FYI. That 930 tranny is converted to sequential shifting and has straight gears. i think his box is more expensive then his engine, which also had a lot of work done to it...

[fahrvergnugen]

I will post pictures tomorow

Michael

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