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WNGD posted:

I'm not really a fran of black on black on black but there's a lot to like on that one. 

"Porsche 901 5-Speed" ???

I knocked the bid up a couple of times for the seller 

My previous Intermeccanica had a Porsche 901 5 speed transmission.  First gear down and left, rest of gears in nice H pattern.  Porsche figured that for racing no one ever used first gear once they got going, so they put 2,3,4,5 in a nice H pattern.

It's a good transmission, and Henry does install them.

WNGD posted:

..."Porsche 901 5-Speed" ???...

The 901 is a viable alternative to the Berg 5 and actually fits between the frame horns. There's fabrication involved for the front mount, shifter, and I believe the frame horns need to be clearanced for the cv's as well, so it's not exactly plug and play but it's certainly doable. It has a lot going for it- more strength engineered from the factory, the longer 1st gear (that so many of you go gaga for), an almost endless selection of gears, factory ZF limited slip diffs are (relatively) easy to find (compared to a type 1 ZF), and there are even aftermarket gears and limited slips available.

While the initial purchase price of a used trans may seem reasonable (1,000-$2,000? vs 4500- $6,000 for the completed Berg 5), parts are not even close to cheap should it need going through (you did by it used, after all), for some the unique shift pattern (1st down and left, 2-5 in the H pattern) takes some getting used to and the Porsche style synchros are not quite as smooth as the (is it Borg Warner?) style synchros  in the VW trans. While it is stronger (I know, I already mentioned that, but there's another point to be made here so be patient!), the VW trans can be built to last under the increased power of all but the most hyper VW engines and for those looking to keep weight to a minimum and/or build the most balanced car for handling, the extra 40+ pounds, while not hanging outside the rear wheels, is still at the wrong end of the car so there are compromises. 

Yoda out (for now, but back you know I will be! Get rid of me you can't!)

Last edited by ALB

 "the extra 40+ pounds, while not hanging outside the rear wheels, is still at the wrong end of the car so there are compromises."

Al:  I never noticed much of an issue with this.  Henry did put 7" wheels on the rear, so that helped with traction and balance.  As for cornering, you just take the normal precautions for a rear engined car. 

At least it was an IRS rear setup.  

The 901 transmission is very strong as originally supplied.  The 914 is a version of the 901 (slight differences like spin direction - so 5 speed reverse in a Speedie) - a 350 hp VW is quite common in 914s. As loog as you don't do hole shots and like to leave rubber all the time it handles the added hp.  It is said you can flip the R&P on the 914 to handle the reverse gearing (as well as add a breather).  In addition, you have to change the nose piece and hockey stick (plus shifter linkage) to that from a 912/911 (I think the 914 5 speed shifter would work - with mods)).  There is a machined noise piece available from Europe (Germany?) to also do this.  While 911/912 901 5 speeds are costly, the early 1970-73 914 tail shift 5 speed is the best to convert and is available for $250-400.  Using the more desireable in a 914 side shift ('73 up) will cost more for the trans and more for the conversion.

https://www.bugat5speed.de/en/...schaltwellendeckel-2

I've not seen a good, detailed write up on using the 914 901 trans.  The following is a good one on using the Porsche 912/911 901 version.

https://www.aircooled.net/vw-t...-5-speed-conversion/

https://ranchotransaxles.com/f...-irs-beetle-chassis/

Last edited by WOLFGANG
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