PIX, Pix Of Enlightenment Options

[veekry9]

Any Takers here?
Quote
Flat 8 Porsche Engine
A mate is making a flat 8 engine for a replica 908. He has used two 2.7lt magnesium blocks that we wirecut at my work and has welded them together in a jig. First time he has welded mag and it is a steep learning curve with the pre heating/jigging and post stress relieving. Here are the photos of his second attempt. He still has 1mm of bend after welding but is making a different jig that will be stronger and keep the heat more stable (he was saying 5 mins after welding and it was cool enough to handle).
Unquote


http://performanceforums.com/forums/showth...-Porsche-Engine

from '11

[Woody]

Any Takers here?
Quote
Flat 8 Porsche Engine
A mate is making a flat 8 engine for a replica 908. He has used two 2.7lt magnesium blocks that we wirecut at my work and has welded them together in a jig. First time he has welded mag and it is a steep learning curve with the pre heating/jigging and post stress relieving. Here are the photos of his second attempt. He still has 1mm of bend after welding but is making a different jig that will be stronger and keep the heat more stable (he was saying 5 mins after welding and it was cool enough to handle).
Unquote


http://performanceforums.com/forums/showth...-Porsche-Engine

from '11

Why not use an aluminum case?

[balljoint]

I looks like a Fiero (IMG:style_emoticons/default/confused24.gif)

(IMG:style_emoticons/default/idea.gif)

Yes. Yes, you do.

[Dave_Darling]

Because RACECAR!! (Mag is lighter.)

--DD

[veekry9]

Found some old links re:flat-8 at PerformanceForums

http://jalopnik.com/5799726/emerson-...kswagen-beetle


https://www.youtube.com/watch?v=tXKcpbFF7WI

"Excellent, the pressure is great, Today is March 19th, 2009, and tomorrow, we will be recorded for the show,
'Auto Esporte'. Good work Marco, Good work Arlindo"


https://www.youtube.com/watch?v=Zto2UDCUyoY

The vids have be online a few years.
These guys make it look easy.Wanted a Flat-8,Made one.


https://www.youtube.com/watch?v=nF9j6G4bkZg


(IMG:style_emoticons/default/smilie_flagge24.gif)

[veekry9]

Some headway's been made

Custom flat-8 crank from Oz.





http://www.performanceforums.com/forums/sh...he-Engine/page2

Can't be cheap.
Building a 908 tribute from scratch,to a fine resolution.

[veekry9]

Fer sail

Wider to fit,with or without flares.

early corsa

late corsa 8
(what a '77 914/911/944 morph looks like)


nice crank.corvair aero app
they are able to do -8's
to similar specs 2.5K+
/

[billh1963]

Any progress on welding the 2.7 cases together?

[veekry9]

billh1963:
I looked at the performanceforum thd recently,and from what was described the case weldment requires further welding.
Magnesium castings are no doubt difficult to do to a machined tolerance.He was able to get within 1mm(0.039")runout through the mains bores,
which all things considered,is a notable success.So,some layup on the mainbores and parting faces to be remachined,to straighten it up X2.
A ton of very difficult work.Inspired by their efforts,a minor change in plans will be applied to my own P14.
The intent was to run the 2L until I found some issues with the valve guides,and since I now have the Corvair 6's,I believe the initial cost of a 14-6 will be tolerable,
originality deferred temporarily.The idea of creating a flat 8 using Corvair blocks welded and machined can't possibly be original,though the net has not revealed an attempt.
The CNC shop doing the billet corvair cranks are a likely source for a 90-degree 8 pin crank.A fewer number of main bearing pins may be a serious problem for the
vibration characteristics of such a long crank.More research is needed.
Here is a site (edit:11/05//15(http://www.pattakon.com/))that makes balance software available.
The Porsche drawing I've posted here shows the 90 degree pins interspersed with the 0 degree pins.
The 2 billet cranks made in Australia appear to be the other method,which I believe is the solution Porsche used to tame the harmonic vibrations inherent with the original design.
The price of a crank made to these specs is not cheap,so what to do if you're really hankering for a flat 8?Cut weld...? (IMG:style_emoticons/default/lol-2.gif)
Seriously,a talented welder with some rod may git er done.A lot of work.

[veekry9]

OK.here's the plan..
Get 2 sets of cases,and weld them together after machining the front and rear off each respective set.
Front 2 and rear 2.Makes a long case to carry 8 cylinders.
Look,if the guy in Aus can weld magnesium cases,it would have to be easier to do the same to 356 T6 alloy cases.
Marginally easier admittedly,but possible to achieve the exalted F-8.
Fun with TIG,in an oven,inert gas flushed...
/
(edit:08/08/16):


Samba-2-4-6-8
http://www.thesamba.com/vw/forum/viewtopic.php?t=399470


Well,the fellow in Australia has the right idea,wire edm cutting the cases to key each other together.
Still,tubular shafts,ground to the mains and cam dia +0.0004"/-0 for alignment is essential.
Otherwise,a near hopeless adventure,preparation of the weld groove is critical,minimum weld added.
Tough job,all around.For sure a worthy aspiration,wanting -8,pushrod even.More cylinders,more better.
(IMG:style_emoticons/default/biggrin.gif)


Even these cases could be sixed,356-6.Custom crossflow center head too.
(IMG:style_emoticons/default/evilgrin.gif)


A VW Boxer Six,a neato version of the Corvair engine.
Clearly,a welded crank.Note the main journal's discoloration and heat affected zone.
The -8 crank is done in a similar way,two -4 cranks welded together,90* apart.

http://carocha.forumeiros.com/t477-transfo...com-8-cilindros


Mounted Mid in a 914,this is the right side of the engine,pretty nice looking.
I want to build a few,and I know,some of you want one too.


Some real expertise demonstrated here,kudos.Note the cam nose profiles,long duration,mushroom lifters,a revver.
(IMG:style_emoticons/default/clap.gif)
/

[rick 918-S]

I like this! (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/welder.gif)

[bulitt]

There was a guy....on Ferrari chat with some amazing machinist and tig welding skills, and allot of energy. He decided to make his own 12 cylinder engine. He had a machine shop in his basement. The thread ran for years. It blew up.

So I think it is cool you are attempting this, and wish you the best of luck! You may want to try and source every existing part that would fit and design around them.

Me, I would just drop an LS engine in there. But I seriously get where you are coming from!

Here is the thread. It's 101 pages long. It will suck you in! And, there is no ending because some nastiness occurred and the admins shut it down.

http://www.ferrarichat.com/forum/308-328/1...ion-begins.html

[veekry9]

Anything familiar?I hope you like the LED indicator,Anyone like?
Turns out the Panamera has similar signals,fluke huh?

A cleaner blue Targa 14 LeMan windscreen

Less Aero glass

first

[veekry9]

Some Lip

More

Most
FullFront Was Orange (iamchappy Mn)
/

[veekry9]

There was a guy....on Ferrari chat.

Yeah.
A few years ago Hemming's Exotic Cars did a cover story on the 308GT4 as an economical way to get some Stallions.
(edit:05/07/16)"A few years ago"19 actually. (IMG:style_emoticons/default/dry.gif)
http://www.ebay.com/itm/November-1997-Euro...x8AAOxyVaBS1IHX
Bertone did a great job of integrating 4 seats and mid design transversely.The marketing department not so good.
Like the 914 the GT4 was shunned by the illuminati.Paul Frere did a R+T road test in Upper Michigan in '74 and loved the car.


Now stuffing a 400i V12 longitudinally and a modern 6-7 spd tapshift would wake it up.
The objective being to maintain the brand of the prancing horse.Add the turbos and water+nitromethane injection ..How fast?220MPH+ fer sure.


https://www.youtube.com/watch?v=Uu8qo93N1wM


How to re+re your F-V12.
Why I'll buy into the lottery..
(IMG:style_emoticons/default/lol-2.gif)

(edit:11/05/15)

https://www.youtube.com/watch?v=SZ9s3P34v9s

(edit:04/24/16)

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

https://www.youtube.com/watch?v=uA8poGGmPIU

https://www.youtube.com/watch?v=SWwldtV9zBU

http://alemala.xoom.it/alemala/ad308/body/308_upgrade.html
https://www.youtube.com/watch?v=1jUz1AZKXFA
https://www.youtube.com/watch?v=uO8xRNSUXkg
https://www.youtube.com/watch?v=MNQBDqUkb6o
https://www.youtube.com/watch?v=2WGgYN_PkIo
/

[veekry9]

Hmmm...


Couldn't find the thd,What sitename?
Lower longer..starting to look like a Can-Am with a 914 house on top.
Hey,it does have a Can-Am engine.+Turbos!
The large vents under the trunk floor will allow the flow of the massive heat generated by the powerplant,feeding the low pressure area behind the car at speed.Turbulent air under the car is drawn out.
The width here is about as extreme as it should get.
Still possible to add GT flares of narrower dimension.
The reverse light is in factory position,the lens is merely wider by the widening amount.
Not the easy way this is.You would need a metal surgeon to hammer and dolly the added strips of sheetmetal.The shape of the trunkline rear of the targa defines the intersecting transverse curve.The beltline then is lower.Raising the trunkline would help a lot,giving a humpier,bulging curve to the rear top quarter,sorto like the latemodel Aston-Martins.
The focal length of the camera used foreshortens the image making it tricky to accurately sketch.



Wider than the section cut.+2"



Primordial DNA of the 914 Targa Bar.

[veekry9]

http://www.hollowsurfboards.com/documents/...Knistle1977.pdf



So..to shape some foam you first must use adhesive to attach it to the fenders.
Then use the above methods the achieve the shape you desire.
Modern epoxies and clothes are more suitable for insulation type polystyrene.
If you are making your own mudgards(flares) it's possible to design,fabricate
a unique look for your 914.
At some point in the work-up to the LeMan '70 someone cut a washtub in half
at the factory and said "yeah,that'll work".
Don't get me wrong.I like the look,they were the solution of the day for the fat wheeled Porsches,the 911 too.
The colour is very close to my own selection.

A how-to:
http://neilblanchard.blogspot.ca/



The Red-Transformer 914 is a notable design for it's outrageousness.
Personally I regard this red 914 as a 10,being so well integrated.





Very Nice,"Modern"EV from Switzerland.

[veekry9]

http://www.fiero.nl/forum/Forum3/HTML/000121-20.html

http://lh4.googleusercontent.com/-D0XYb6GL...00/100_1866.JPG

Need some gears?
libertysgears
http://www.libertysgears.com/
The scarcity of 904 mainshafts...

[veekry9]

[quote name='veekry9' date='Apr 18 2014, 02:24 PM' post='2026422']
Hmmm...


Couldn't find the thd,What sitename?A lost reference,who?
Lower longer..starting to look like a Can-Am with a 914 house on top.



An incredible amount of labour and planning.A GT for LeMan,Daytona the Nurburgring.Gonna be quick.

[veekry9]

As an example of how design intent can go arwry..


YellowHorror

Fat tires-check.
Flares-check
pseudo f40-check

As you observe various auto designs,are you able to perceive rust and dents from a distance of 100 yds?
Sure,so it is entirely possible to detect the shape of the fenders of a 911RSR.
Expedient measures to cover the tires range from this to the shapely splined flanks of the 914.
The necessity drive the invention.