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> Sportomatic conversion..?
Dave_Darling
post Sep 17 2016, 10:31 AM
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QUOTE(Cuda911 @ Sep 16 2016, 10:47 PM) *

Question, I guess for Tom T... how many sporto 914s were built?


The most authoritative source I have seen says 25 regular production 914-6 Sportos were built. I believe there were 4 built for the 1970 model year, and 21 for the 1971 model year. And we know of one existing prototype.

There are other reports that only 5, or only 21, were built, but I think those picked up the one-year figures and treated them as the totals.

--DD
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SirAndy
post Sep 17 2016, 11:10 AM
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QUOTE(Dave_Darling @ Sep 17 2016, 09:31 AM) *
There are other reports that only 5, or only 21, were built, but I think those picked up the one-year figures and treated them as the totals.

I personally know of more than 5 so that number is out of the running ...
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BK911
post Sep 17 2016, 11:18 AM
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Good luck sourcing all the parts.
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ClayPerrine
post Sep 17 2016, 12:46 PM
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The one thing that everyone here is forgetting is there is no "transmission fluid" for a sportomatic. It uses the engine oil. You will have to figure out how to send oil from the engine to the trans. The 914-6 and 911s with sportomatic transmissions have extra fittings on the oil tank that hook to the transmission.

And aftermarket carbs are out too. You have to have a vacuum tank and special manifolds for the webers on a 6.

The flex plate would be easy. The sportomatic is the same tech as the VW automatic stick shift. Get the flexplate from a bus with the automatic stick shift.
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ClayPerrine
post Sep 17 2016, 12:54 PM
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Here is the PET diagram of the oil system.

Attached Image

And the Vacuum System.

Attached Image

This is not a trivial task on a six. You have to find all the parts before you can start.

IF it is a four, I wouldn't even try. I would look for the Audi 5000 trans. It would work better than the sportomatic, and easier to install.
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gandalf_025
post Sep 17 2016, 01:19 PM
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QUOTE(ClayPerrine @ Sep 17 2016, 02:46 PM) *

The one thing that everyone here is forgetting is there is no "transmission fluid" for a sportomatic. It uses the engine oil. You will have to figure out how to send oil from the engine to the trans. The 914-6 and 911s with sportomatic transmissions have extra fittings on the oil tank that hook to the transmission.

And aftermarket carbs are out too. You have to have a vacuum tank and special manifolds for the webers on a 6.

The flex plate would be easy. The sportomatic is the same tech as the VW automatic stick shift. Get the flexplate from a bus with the automatic stick shift.



Go back and read reply # 10.....................................

Oil tank is different.... Call it oil or transmission fluid... Separate fittings on tank..
Oil pump is on the trans as far as I remember and the vac lines are in the manifolds.
Vac tank is on the trans also.... Flip R/P on a 911 sporto.. there are plenty around....

If this guy can fab oil tanks and exhausts, it would be easy to mod a set of weber manifolds for a vac port. Or find a 911 set.................
They made BUG sportomatics with 4 cylinders... How tough could it be ??????
No need to reinvent the wheel.. tail piece and linkage MAY be different....

Why the big deal ??????????????????
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BK911
post Sep 17 2016, 01:30 PM
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The manifolds also have different throttle connections.
Oil pump is cam driven.
Vac tank is on the firewall in a 911, not sure about a 914.
Pexal set is different.
Shifter has some sort of switch on it.
Lots of special parts not easy to find.
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N_Jay
post Sep 17 2016, 01:50 PM
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Is it the same concept as a VW Semi-Auto?

If so, it was a manual with a TC in front and a pneumatically operated clutch that disengaged when you first started moving the shift lever.

The 1972 VW was a 3 speed and it did 0-to-60 in just over a full minute!

You could jury-rig the shifter switch by using some type of pushbutton in the shift lever. (A little extra manual control.)
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sixnotfour
post Sep 17 2016, 02:43 PM
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I have every part from a 911 to do this,, But Do this Instead,

Audi 5000
http://www.914world.com/bbs2/index.php?sho...=101948&hl=
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SixerJ
post Sep 17 2016, 03:29 PM
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I have an oil pump, fits to the rear of the six engine and powered off the cam (same side that powers the MFI pump pulley. The sporto oil pump was also used on GTs for gearbox cooling

Watching this on eBay, not that I have any intention of buying it

http://www.ebay.co.uk/itm/Porsche-914-6-Sp...WATCHING_ACTIVE

Cool project, not for the faint hearted
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rgalla9146
post Sep 17 2016, 05:35 PM
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QUOTE(rgalla9146 @ Sep 17 2016, 05:03 AM) *

No 914 4 cyl Sporto is known to exist ....... 6 cyl, yes.
I have a NOS Sporto shift lever somewhere.
Get started
Someone here put a Audi 5000 auto in a 914


Oh ! I also have the Sporto only 914 6 accelerator pull rod , trans to bell crank on top of engine.
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Mark Henry
post Sep 18 2016, 12:18 AM
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QUOTE(SixerJ @ Sep 17 2016, 05:29 PM) *

I have an oil pump, fits to the rear of the six engine and powered off the cam (same side that powers the MFI pump pulley. The sporto oil pump was also used on GTs for gearbox cooling

Watching this on eBay, not that I have any intention of buying it

http://www.ebay.co.uk/itm/Porsche-914-6-Sp...WATCHING_ACTIVE

Cool project, not for the faint hearted


Too me I smell (IMG:style_emoticons/default/bs.gif) on it being a real 914 sporto.

VW semi auto is a 2 speed (plus a be-low gear) bag of shit that won't take anything over 50hp.
Type 3 auto would be a better choice, as it a Borg-Warner unit and could handle the 2.0 90-95HP d-jet.

That said I'd look into the Audi trans, at least it's been done before.

Don't know if the diff can be flipped on a '83 VW vanagon auto trans, if it can couple hundred bucks plus shipping and I'll drag the vanagon out of the back forty.
It has a working auto trans in it. The cash would be for the labour to take it out, the tranny is free.
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SixerJ
post Sep 18 2016, 07:59 AM
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QUOTE(Mark Henry @ Sep 18 2016, 07:18 AM) *

QUOTE(SixerJ @ Sep 17 2016, 05:29 PM) *

I have an oil pump, fits to the rear of the six engine and powered off the cam (same side that powers the MFI pump pulley. The sporto oil pump was also used on GTs for gearbox cooling

Watching this on eBay, not that I have any intention of buying it

http://www.ebay.co.uk/itm/Porsche-914-6-Sp...WATCHING_ACTIVE

Cool project, not for the faint hearted


Too me I smell (IMG:style_emoticons/default/bs.gif) on it being a real 914 sporto.

VW semi auto is a 2 speed (plus a be-low gear) bag of shit that won't take anything over 50hp.
Type 3 auto would be a better choice, as it a Borg-Warner unit and could handle the 2.0 90-95HP d-jet.

That said I'd look into the Audi trans, at least it's been done before.

Don't know if the diff can be flipped on a '83 VW vanagon auto trans, if it can couple hundred bucks plus shipping and I'll drag the vanagon out of the back forty.
It has a working auto trans in it. The cash would be for the labour to take it out, the tranny is free.


Mark, quite possibly this is a BS thread all things considered but for anyone wondering what a sportmatic oil pump looks like here you go (came in a box with a few oil fittings I bought a while back & I think missing some kind of cage that attaches it to the back of the cam housing)


Attached Image

Attached Image
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mb911
post Sep 18 2016, 08:38 AM
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That's pretty cool .. I assure you not bs.. I wonder though if a boxster 5 speed may be the best route..

Why not a Beatle autostick with the ring flipped?
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sixnotfour
post Sep 18 2016, 08:40 AM
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QUOTE
Audi 5000http://www.914world.com/bbs2/index.php?sho...=101948&hl=


https://www.youtube.com/watch?v=3UN2gZ-nYLA
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mb911
post Sep 18 2016, 10:00 AM
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I saw that as well.. Does the Audi trans require a ring gear flip as well?
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Mark Henry
post Sep 18 2016, 12:38 PM
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QUOTE(SixerJ @ Sep 18 2016, 09:59 AM) *

QUOTE(Mark Henry @ Sep 18 2016, 07:18 AM) *

QUOTE(SixerJ @ Sep 17 2016, 05:29 PM) *

I have an oil pump, fits to the rear of the six engine and powered off the cam (same side that powers the MFI pump pulley. The sporto oil pump was also used on GTs for gearbox cooling

Watching this on eBay, not that I have any intention of buying it

http://www.ebay.co.uk/itm/Porsche-914-6-Sp...WATCHING_ACTIVE

Cool project, not for the faint hearted


Too me I smell (IMG:style_emoticons/default/bs.gif) on it being a real 914 sporto.

VW semi auto is a 2 speed (plus a be-low gear) bag of shit that won't take anything over 50hp.
Type 3 auto would be a better choice, as it a Borg-Warner unit and could handle the 2.0 90-95HP d-jet.

That said I'd look into the Audi trans, at least it's been done before.

Don't know if the diff can be flipped on a '83 VW vanagon auto trans, if it can couple hundred bucks plus shipping and I'll drag the vanagon out of the back forty.
It has a working auto trans in it. The cash would be for the labour to take it out, the tranny is free.


Mark, quite possibly this is a BS thread all things considered but for anyone wondering what a sportmatic oil pump looks like here you go (came in a box with a few oil fittings I bought a while back & I think missing some kind of cage that attaches it to the back of the cam housing)



I'm stating that I think the ebay ad for a "real" 914 sporto is the bs, I'd say it's a 911 sporto modified to be a 914 sporto. (IMG:style_emoticons/default/rolleyes.gif)
I could be wrong but...
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ClayPerrine
post Sep 18 2016, 01:10 PM
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QUOTE(mb911 @ Sep 18 2016, 11:00 AM) *

I saw that as well.. Does the Audi trans require a ring gear flip as well?



No. the Audi trans is normally behind the motor. It will work out of the box.
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SixerJ
post Sep 18 2016, 02:29 PM
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Ahh, I see what you mean, certainly the price of the eBay transmission is utter BS. You could buy a really nice sorted car for that money

For a sportmatic the rear boot floor is also different as well, hump required I recall
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Nutter965
post Sep 19 2016, 09:46 AM
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Found this on Ebay.de !

http://www.ebay.de/itm/PORSCHE-914-6-Getri...1cAAOSw-kdXyxoq
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