PIX, Pix Of Enlightenment Options

[Sleepin]

If it wasn't such a boat anchor, the air cooled Tatra 8 would be cool

(IMG:http://www.914world.com/bbs2/uploads_offsite/bringatrailer.com-8357-1410325948.1.jpg)

[veekry9]

In Europe,the Tatra aircooled V8 has been used for many unique projects.



Traditional 90*v8 layout



A lightweight v8 bike

Q
However, Tatra came up with some very special concepts and innovations under the hood as well. Which technical details were most significant?
Ivan Margolius: The lightweight air-cooled rear engines V8 and flat 4, swiveling headlights, swing axles, forced fan-assisted cooling and flat undersides.
Q

Haven't looked into the aftermarket for these engines,if it exists.

http://www.tatraplan.co.uk/


looks modern


yup,modern
An auto company with a huge history.
/
(edit:08/07/16):
http://www.914world.com/bbs2/index.php?showtopic=61581
Some time later,more info became available.


SuperBug-2.5L V8 (Bore:75mm X Stroke:72mm)


Incredibly,snuggled into the behind.
So yeah,with some careful measurement and mods,one could slip right in to your 914,smoothly.
(IMG:style_emoticons/default/biggrin.gif)
/

[veekry9]

https://www.youtube.com/watch?v=q-AKigRiGe8


So yeah,a lightweight aircooled v8.

[veekry9]

https://www.youtube.com/watch?v=hfqZ2XBOVnk

first on many innovations

https://www.youtube.com/watch?v=A_7ISJ57ZYU

sounds like a v8

https://www.youtube.com/watch?v=WJdowd5zQfU

1937 sohc hemi v8 magnesium.

https://www.youtube.com/watch?v=E0UkeJb8CCE

A latemodel,carbed

[veekry9]

at speeed.



A great idea,now,where is that flat -8,pushrod even.
To accommodate said long-block,a wb stretch would make a perfect fit.

[Hank914]

In Europe,the Tatra aircooled V8 has been used for many unique projects.

Traditional 90*v8 layout

A lightweight v8 bike

Q: However, Tatra came up with some very special concepts and innovations under the hood as well. Which technical details were most significant?

Ivan Margolius: The lightweight air-cooled rear engines V8 and flat 4, swiveling headlights, swing axles, forced fan-assisted cooling and flat undersides.

Haven't looked into the aftermarket for these engines,if it exists.

http://www.tatraplan.co.uk/

looks modern

yup,modern

An auto company with a huge history.

Huge history! I remember seeing Dubcek and Svoboda cruising around Praha and Bratislava in 603! And then in the 70's them orders 613 model. Only the party big wigs got to be driven in those cars. Ahhh, great memories of the utopian socialism of CSSR and CCCP! And the pivo! Don't forget the pivo! (IMG:style_emoticons/default/beer3.gif) (IMG:style_emoticons/default/beer3.gif)

[veekry9]

Come to think of it,those highpressure dies quite likely still exist.
The entire GM Corvair production diesets were scrapped in the 70's.
But things are done differently there,as the dies are of great value,even now.



Do you see anything you like?An alloy aircooled v8 of aircraft design philosophy.
Lightweight,compact,easily manufactured,similar in design to the vw and corvair.
hemi design canted valve in pushrod and dohc configuration,sophisticated.



this is the H-4,chain driven sohc,1937.



pushrod -4

[veekry9]

T603 engine designed by Julius Mackerle.
http://www.eurospares.com/graphics/engine/...searcheable.pdf (thanks jd74914 )

By raising the camshaft far above the crank in the valley,the rocker geometry for the exhaust valve is improved,perhaps making possible the use of common rockers throughout.
Note the hemi-like chamber and wide angle canted valves.Like the VW/Porsche and Corvair,the bore diameter is restricted by the cylinder head studs.
A considerable amount of weight savings would be realized by adopting LN cylinders.
I believe the crank is a conventional cross plane and at a small 72mm stroke,there may be plenty of room for a much larger stroker.

http://www.velocetoday.com/a-technical-history-of-tatra/

The discrete lifter-blocks allow replacement roller-lifter and barrels to be installed for low friction,high rpm operation.

[veekry9]

V-12 aircooled diesel,3-cam.
The same designer,Doctor Prof. Julius Mackerle.
Roller bearing bottom end.

V-10 version
https://www.youtube.com/watch?v=4S1Ft4ots7g

(edit:2/23/16)

https://www.youtube.com/watch?v=MCwHl885-m4

Anyone onboard able to translate his spoken words?
Looks like an interesting project,a diesel conversion.
/
Tatra 613 unfinished project - Diesel. Unique project of rebuilding the engine T613 (aggregate) on diesel variant. At the end of the 70th century originated minuléto years so far unique project for rebuilding the engine on the T613 diesel engine with direct fuel injection into the cylinder. As a base engine was used T613 (model E) production year 1977, which had traveled 20 thousand. km. The creation of new pistons with a semicircular shape of the bottom of the piston has been redesigned combustion chamber cylinder heads were modified cabinets cam engine was devised to drive fuel injectors, all this was preceded by a complex formulation of models later casts, followed by manufacture themselves cast as pistons and various components, from which the formed parts for driving the injection pumps, produced with a special injector, it was necessary to devise and make special threaded shaft for installation into enclosures injectors cams and cylinder heads. further information only serious and technically savvy candidates. This project is a testament to immense creativity and skill of the Moravian-wise and because the owner of this concept does not want to make this engine ended up in scrap, looking for this very technical and design an efficient, technologically savvy real enthusiasts Tatrovaks heart for engines Tatra, which this project dotáhnul to successful end. The owner of both the engine and the entire project, originator of the idea itself is ready to provide serious, but it really only serious candidates all technical and knowledge support to complete this project successfully. The owner, however, asks dealers and speculators, who, on this project, they just want to earn without it without touching anything, so this video in any way responded.

P.S. The video is mistakenly stated that the year of manufacture of the engine is 1997 correctly's 1,977th
/

[veekry9]

What's not to like?An alloy hemi V8.
And it's "Teutonic".




https://www.youtube.com/watch?v=WEFJ9kkFGN0


6:1 comp 2.5 L aircooled V8,just add turbo.

[veekry9]

single seater t507 bvlv originally designed to test new aluminum V8 engine with OHV prepared personally for uozv Tatra 603

http://www.jalopyjournal.com/forum/threads...hemi-v8.484366/

A link to some q+a.

[veekry9]

Mid engine alloy hemi pushrod V8.
model 603 2.5L,75X72mm BXS.

A step up is the model 613,4cam,16v 3.5L engine.
85x77mm BXS
model 700 4.4L efi
produced until '9x?

[veekry9]

Well,someone out there in the hinterlands of the E.U. must have a handle on these lightweight V8s.
If not,an Opportunity exists to meet the demand for the unique small 4+8 zylinders.
Other than auto applications,a kitplane aero app may move a few of them.
Simply gather as many pieces that you can and put up an Ebay/Samba for sale sign.
I'm somewhat surprised that a VW/Porsche fan from the Continent hasn't considered a powerplant of such attributes.
A further question regarding the dimensions of the bore spacing and cylinder stud pattern remain unanswered.
Scaling a photo may derive a close number,but only close.


https://www.youtube.com/watch?v=wLUGSm6Th-Q


Judging by the positive reaction on virtually every blog and posting for the last decade,a surprising number of wrenchers would like to have such engines.
And to think the Ford V8 of '32 was it's contemporary.
In hindsight now,it's no surprise that the ArDun head for the Fhead Ford used a similar,independent latest big breathing pentroof/crescent design.
An aftermarket to develop hotrod parts for the engine never happened.
Rollertip rockers,rollerlifters,modern valves,all the things you would do to your aircooled VW,Porsche,Corvair,Hirth,Rotax...
I haven't seen anyone other than the factory turbo the engines,so,you could be the first.
Could be fun.

[veekry9]

Tatra 613 4.4L DOHC 16V aircooled
appears to be 6spd transaxle from a front drive vehicle,Getrag?.(edit:11/10/15)All Tatra ,6spdSuitable for 4X4,6X6.
http://translate.google.ca/translate?hl=en...440%26bih%3D712
http://www.tatra603team.cz/
http://www.youtube.com/watch?v=qtzpRBuJmPw...gdTROrvzuXCZL1Q
http://www.youtube.com/watch?v=GKwPoKhJh5g...L1Q&index=4
(some Sabbath involved.Heavy metal,for those unfamiliar with the genre)

4-cam valve action,sounds good.note the convenient covers between the cams,to adjust lash quickly.400hp na.


A nice design from the time of Elvis.

a link to the car designer's story.
http://translate.google.ca/translate?hl=en...440%26bih%3D712
http://ommszem.blog.hu/2007/10/11/fiokba_zart_gran_turismo
a real beauty,


https://www.youtube.com/watch?v=ao5OF7EXDcw

A nice one,utility,military application,Will fit nicely into a 914,a 4x4 914!
Yes,a 924/944 early differential,cvs,axles,a custom upright to carry the hub.
A few details and some hotrod tech,and a short stroke turbo screamer to make it all good.
A good deal if you can acquire them.
A quest for a European,or a source of parts for the next custom X-12.
Not only possible,but imperative.

[3d914]

Have you seen these? Both are design built around the 914 unibody. Either would be interesting to refine/update.

Hispano-Aleman




Or the Tapiro: Link with pics

[veekry9]

Frua,driven at speed.
One off,elegant design.

[veekry9]

PX A nice airy glass house.
A 6 under glass
like the wheels now,always did.

[7TPorsh]

PX A nice airy glass house.
A 6 under glass
like the wheels now,always did.

4 bolt

[Dave_Darling]

Weird. The front is definitely five-bolt, the rear looks like four-bolt.

EDIT:
Looking at the pics on the website linked shows they were all five-bolt. So the four-bolt look must be an illusion. Probably the "uneven" part of the bolt pattern (where it does not match with the eight spokes) is out of sight on that rear wheel.

--DD

[7TPorsh]

yep, 5 bolt. % in the center square, neat