Flat 6 in the bus Split
 

I bought a COMBI SPLIT 15 WINDOWS. But i want put the flat 6 porsche AIRCO with the porsche gearbox with the IRS SYSTEM and the rear axle of 944
Can you help me for find the kit for this conversion ?

Regards

Pascal

Kit... None.

You are going to haver to hack the piss out of your bus to fit all that stuff in it.

Oil tank. Wide and long flat 6. Not to mention the bigger 915 tranny hassle. Also for the IRS stick with steal arms, any AL ones will make it too wide.

Forget it or open the wallet very wide.

Best if he had a 74 up bus then it would be easy. Better yet a vanagon would solve all problems. Flat 6 are much easier to put in a vanagon. Has being done here in jamaica.

I have the same question regarding fitting the flatsix into a splitty. My engine is a 1969 2,0l engine and I had planned on using a 1303S IRS gearbox. 944 steel trailingarms and brakes. Pros and cons? Do I swap the nosecone from the IRS gearbox to the one from the stock splitty swingaxle gearbox?

Dont ask why I just settle with the 2,0l. That question have been asked before and I answer it by saying that it is what I have in store and secondly that would be the maximum displacement increase allowed in Finland for a splitty... ;) :agree:

I suspect that if I have a good superbeetle gearbox it will cope with the moderate poweroutput from the small flatsix. I'm not building this for racing just building it because I like the combination of a splitty and the porka sound.. :cool:

Unfortunately my -69 911 engine did not have any flywheel when I bought it. What I would appreciate find some info about is if I could use a post-69 911flywheel in combination with the 1303S gearbox? The reason I ask this is that the pre-69 flywheels are priced as they were made out of Platinum compared to later ones...:eek:

Just like this:

http://web3.ichwobbledich.com/cms/im...r/28car_gr.JPG

http://web3.ichwobbledich.com/cms/im...lame1_gr12.JPG

one was featured in hot vws a few months ago its owned by Geoff?? that used to work at airspeed parts in british columbia......if you vist there site there is a complete build procces.
http://www.airspeedparts.com/communi...hp?act=SF&f=20

Thanks, I know Geoff from volksrods.com. We've got the same interests He built his Hebrod with inspiration from my unfinished Hebster project too.. ;)

We've discussed this through e-mails too. He's got a Porsche transmission too if I dont remember totally wrong.

This is how nice the 911 flatsix fits to a 1303S transmission.. :cool:

http://i45.photobucket.com/albums/f9...3.jpg~original

I started to relocate the transmisson 30mm forward and removed the original front mount.

http://images.thesamba.com/vw/galler...1.jpg~original
http://images.thesamba.com/vw/galler...2.jpg~original

Then begun to make my own "Berg-mount", just having some thoughts and worries about the engine and transmission hanging on the rubber mounts... So I have now two options for the Berg-mount...

http://i45.photobucket.com/albums/f9.../Bergmount.jpg

The reason for me to concider the upper mount is that I'm worried about the weight pulling the mounts if they are mounted from the under side...? Maybe I shouldn't worry too much?
It would be just like the 911's have it originally too...

http://i45.photobucket.com/albums/f9...2.jpg~original

Hi

It would be better to have the mounts in compression, that way if they fail, they only move around, not drop everything on the road.

Steve

In other words like the upper version then? That was the main reason I concidered that design too..

I just assumed that the weight of the transmission and engine would be more stress to the mount than the power the transmission tend to press the nose upwards when accelerating?

hey just my thoughts on this I too think the upper version would
be better just use some Good 1/4" Plate and Guset the **** out of it lol
plus like what Steve C said it would just Hang it it did Brake, and Not fall to the ground. Just my to cents.

Chris.

The top mount version would provide safety if the mount failed, but would seem to make removing the tranny quite a bit more difficult, as well, when the tranny is loaded during acceleration, the top mount will be in expansion, not compression, and this force is going to be working every time you accelerate.

As well, as I recall, those mounts have a bolt running through them, not just into the rubber, so the safety is there regardless? Might want to look at more modern motor and tranny mounts, if your fabbing up might as well make use of something with a better design?

My 2 cents...

Jason

Not so sure that's a sound replacement for hacking out the middle of the torsion tube. The top square tube is welded to thin sheetmetal with no additional plate to spread the stress. That will fatigue in no time IMO.

Jason

Well, that much I allready have studied that the upper version is easier installed. To install the transmission with the lower version you always have to remove the mount from the transmission before you can pull it out. (on a splitty as the splittys have the crossmember on the framehorns.)

With the upper version you just loosen the rubbermounts and pull the whole thing.

An other aspect would be that when you "motor brake" or how you say it the upper version will just compress the rubbermount where as the lower mount will expand the mount. Same thing also with no power on the drivetrain the weight of the engine and transmission will tend to expand the rubbermount.

I'm now trying to find a original 911 mount including the rubbermounts as those work differently, not just two plates with molded rubber in the middle.

If I use these I think I can make the lower type (original 911 style) with no problems... ;)

http://www.pelicanparts.com/PartsLoo...ATALOG-154.jpg

You are right Jason, but this picture was taken half way the modification. The modification was made by The Bug Box in Germany and they do know how to finish it too: ;)

http://web3.ichwobbledich.com/cms/im...1land_gr07.JPG

Just have a look at the whole project here (in German, but the pics will tell the story).

This is how I did mount my 914 gearbox in my splitbus, with parts of Martin from bugat5speed.

http://home.planet.nl/~schur505/A2M/217.jpg

My complete project is now also available in English, here

What did you do to the torsionbars? Lose them and make some other spring system, Coilovers or what?

In my case I try to not cut into the torsiontube though...;)

I didn't want to cut the torsion tube either, but I did want to lose the torsionbars. :D

I have coilovers on my splitbus at all wheels. At rear with a rocker-system.
More about suspension at page 7 in my project topic at vdubheaven.com.

http://home.planet.nl/~schur505/A2M/378.jpghttp://home.planet.nl/~schur505/A2M/394.jpg

Skywalker, why the rocker system? I can't see the advantage of it in your application, but it does look cool!

Jason

I can see the advantage. I'm in the same dilemma. Lack of room, you can see that the joint that goes down to the stock shock mount is in an angle.
You couldn't mount the shock in that angle.

hi

I read the build up on that webpage, wow you have really done some fine work, congratulations.

Steve

Hebster52 is right, there's not enough space for these coilovers to mount directly to the rear arms. The coilovers would simply rub against the IRS axle boots. A (small) advantage: there's less weight to the suspension.

http://home.planet.nl/~schur505/A2M/462.jpg

@Steve, thanks. There's still some work to do tho. ;)

Luuk

I second that! :D

I think there is room for improvement in the rocker though, you could redo the angles so that it acts like a progressive spring, getting stiffer when under more compression, which will let the bus be more stable on hard cornering. I'd also try to get the pivot point in double shear, could you make a bracket to reach over to the other side of the bearing?

Definitely another nice project to follow!

Rich

Thanks Rich. I appreciate you input, but I have to set a line some where... Same as with the brakes. For now a drum at rear, if it does not meet my standards I simply can go for 944 discs after the bus is finished.
The oil pressure in the shock mount is already adjustable and I 'm not building my bus for the racetrack. :laugh: The suspension will be a lot better as with the torsion bars. It 'll do I guess. ;)

Luuk

The 901 frontmount arrived yesterday. I decided to use stock 911 rubbermounts instead and will now adapt that to the steelplate I have made for my transmission. This will atleast work correct from the underside too.. ;)

http://www.fvwa.sitefactory.fi/data/3369.JPG

The two others are the rear enginemount rubbers...

Several very impressive projects!

Makes me miss my old girl.:(



Jeff-

Took my VW flywheel to a friend of mine who makes race parts etc. himself. I also gave him a 911 flywheel I borrowed to take measurements from. So hopefully during January I will have a VW flywheel that fits the 911 engine.. ;)

Modified the 911 front transmission mount to fit the new location:

http://i45.photobucket.com/albums/f9...1.jpg~original

Started boxing the rear frames to give more support for the heavier engine.

http://i45.photobucket.com/albums/f9...s.jpg~original

Last moth I got the intermediate transmission mount fitted so I could confirm that the engine woud fit inside the enginebay without cutting the decklid.

When my kid came in he shouted WOOAAAHH, COOL!!
:D
http://i45.photobucket.com/albums/f9...l/DSC_1846.jpg

Finally got started working on the rear engine support this week.

Here in the making. Will be reshaped some to look more "factory"..

http://i45.photobucket.com/albums/f9.../DSC_1900s.jpg

http://i45.photobucket.com/albums/f9.../DSC_1903s.jpg

Not much change since that until yesterday when I recieved the custom made flywheel that will attach the boxersix to the superbeetle transmission. It is made from a late 12V 200mm flywheel with a welded in custom made center. Final weight is now appr. 6.5 kg.

http://i45.photobucket.com/albums/f9...l/DSC_2695.jpg

http://i45.photobucket.com/albums/f9...l/DSC_2697.jpg

The boltpattern is pretty interesting.. ;)

http://i45.photobucket.com/albums/f9...oltpattern.jpg

Some new updates from the time the site was down.

20th May:
Got all the parts for the lefthand side engine mount finished so I can just weld them on when I go there next time! 8)

http://i45.photobucket.com/albums/f9...l/20080520.jpg

http://i45.photobucket.com/albums/f9...0080520002.jpg

24th May:
Got the engine mounts finished and pulled the engine and transmission so I could fully weld the front transmission intermediate mount and finish the snape of it.

Next will be making the enginebay tin so I will keep the enginebay tight from the underside.

http://i45.photobucket.com/albums/f9...l/20080524.jpg
http://i45.photobucket.com/albums/f9...0080524002.jpg
http://i45.photobucket.com/albums/f9...0080524003.jpg

Looking good!!!! Keep us posted...

Jason

Split the enginecase the past weekend. :cool:

http://i45.photobucket.com/albums/f9...8.jpg~original
http://i45.photobucket.com/albums/f9...0.jpg~original

Hmm.. Been sort of long time since something actually happened on this project...

But it's not lost in the past yet.:lmao:

This summer I got back to work some on it again...

First finished the modified busnosecone so it works when I fit the Superbeetle gearbox 27mm forward from stock position.

http://i45.photobucket.com/albums/f9...7.jpg~original

Also finally finished the triple Zeniths restoration.

http://i45.photobucket.com/albums/f9...2.jpg~original

Found and scored a set of 16 inch phonedials. Sold the narrow 7x16 and kept the 8x16 for rearwheels.

http://i45.photobucket.com/albums/f9...5.jpg~original

Fitted. "Still lots of space..." :D

http://i45.photobucket.com/albums/f9...2.jpg~original

Also started to have some MS fantasies so I did some research and decided to buy a pair of Triumph Tripple Speed Superbike throttlebodies, and manufactured a spacer/adapter so they fit bolt-on to the stock manifolds..

http://i45.photobucket.com/albums/f9...4.jpg~original

Had the connectingrods reworked at the shop.

http://i45.photobucket.com/albums/f9...2.jpg~original

Restored the heads ready to install.

http://i45.photobucket.com/albums/f9...6.jpg~original

Dug out the repairkit from the shelf.

http://i45.photobucket.com/albums/f9...7.jpg~original

Started to prepare the casehalves for joining back together two weeks ago.
(Crank and connectingrods mounted in the foiled package in the background)
http://i45.photobucket.com/albums/f9...1.jpg~original

More to come very soon. :D

Nice work on the T/B plates.