72 vw bus and a porsche 914

[72vwbus]

is it true that they have the same motors. cuz i got a 914 on hold and im gunna get the header system off it but i just want to make sure that they got the same motor types.

[Matt Wilson]

yes and no. This conversion has been done, but the 1972 model year busses don't have a second access hatch for the engine. In 1972 Porsche 914's had and 1800cc engine, and in 1973 had the 2000cc engine. So you can put the engine in, but you need to fit proper exhaust, heater boxes, and all the correct tin, since 914's were mid engine, and busses are rear. The dipstick for busses is on the bottom rear of the engine, whereas the oil fill and dipstick for the 914 engine is on top, which wouldn't be a problem, except for in the 1972 bus (ceiling clearance issues). I made this conversion for a 1972 with a 914 2.0 which came stock as 110Hp (the bus 2.0L were rated significantly lower if I recall). The engine mounts also must be adapted to bus mounts. Pretty much the basic block is the same less the oil fill stuff, everything else will have to be adapted.
I have a picture of the assembled engine if you would like to see it. You can see the different oil fill stuff.[/img]
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1972 Standard Beetle
1969 Baja Beetle

[Matt Wilson]

I put a picture in the gallery of the conversion. The exaust from 914 is totally different as it is going the wrong way for a bus!
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1972 Standard Beetle
1969 Baja Beetle

[trackwesty]

Sorry I am going to hijack this post for a second but Matt what type of fuel delivery system did you end up using (carb or F.I.) and the factory breather do you have a closer pic? and does the line going up an towards the flywheel go to the air cleaner or charcoal canister?

[Matt Wilson]

I think he went with a center mounted progressive weber for the torque and fuel economy, but you could go almost any route you wanted
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1972 Standard Beetle
1969 Baja Beetle

[AlexQS]

You might like this:

http://www.tunacan.net/t4/reference/case.htm

shows the differences between the various Type IV engines and which vehicles they came in with engine case prefixes. I discovered this when I was thinking about the plausability of putting a type 4 into a bug.

cheers

[Stocknazi]

can i use the carbs from a 72 bus, solex pdsit2/3, on a 70 1.7 914.

do i have to install the carbs backward, b/c the thrittle shaft pulls in the opposite direction on the 914

i dont think this will alter the way the carbs work

anybody done this before?

anything else i need to do when converting from the fuel injecton to dual carbs. anything i have to replum beside disconnecting the return line to the gas tank and running a hot wire fot the electric fuel pump i will use?
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WANTED:
58 Westfalia cabinet knobs (3 needed), roof rack, and (7) privy tent poles (silver painted).

"When the people are afraid of the government, that's tyranny. But when the government is afraid of the people, that's liberty."
"Resistance to tyrants is obedience to God."

Thomas Jefferson

[Wolfgangdieter]

A '72 914 had a 1.7 (not 1.8L) engine - same displacement as the '72 bus. The compression ratio was higher on the 914 (pop top pistons) as was horse power plus it had fuel injection (FI). Cams are different - the FI cam is not ideal for a carbed engine. Flywheel and clutch is different too (forged and 215mm on 914). They are interchangeable though.
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CMC '57 Porsche Speedster Replica and Dolphin boat tailed full pan VW MOD-T Street Buggy

[raygreenwood]

[oconnell]

How am I to know what cam I have?
I purchased the short block and received no history on it.
It is a GD case
I have a CV case also
I can not tell any difference in the cams?
I found a cam on line advertised as a 914 but had cam gear marked vw
Would like a mild performance cam to use with T4 dual carbs or single 2bbl.
first time T4 engine build.
any help is appreciated.
oconnell

[raygreenwood]

[oconnell]

Raygreenwood
wow lots of info
thanks
one more question, how to determine aluminum or magnesium ?

[raygreenwood]

If you scratch it with a pick.....it makes a different sound. But actually you can tell by the part # letter code. I think its the C variant.....but do a search.
Just keep it cor now.....but hou really need a new cam and liters anyway and the new ones are superior to anything stock. Ray

[microbi33]

so what I am getting here is that a RABY 9590 or Web # 73 are good replacement cams in a 914 1.7L engine (pop top pistons) used in a bus (progressive carb). Correct or no?

[raygreenwood]

[microbi33]

Thanks. I "inherited" the progressive carb and it is working OK on my 1.8L(best fuel mileage 19mpg). I have driven it abot 12,000 miles with no icing problems so far. My spare motor is the 1.7L from a 914. I have it apart and the cam needs replacement. Maybe when I build it up I'll spring for dual carbs. Any carb suggestions for best gas mileage?

[raygreenwood]

You are doing....ok with it. And that is saying something.

I always have to tell people that if you think what you have is running "ok" with a center mounted carb......you would be stunned at how it could be running.

Thats not saying that a center mounted carb cannot be made to work well on these engines....but it takes a LOT of work.

Also....icing....is NOT the primary worry and why you need manifold heat with these carbs. The runners are too long. Even in a heated manifold you get fuel seperation on runners this
Long. At best the vacuum circuits and vents In the holly type 2 barrela were made to service 8 inches or so of manifold with, heat.
The heat is required to help keep the fuel homogenized even when icing is not an issue.

Yes....for now the web 73 or a 9590 cam kit from the type 4 store will run well enough and good later if you go back to injection.

Ray

[whoshotjr]

Hi all there's a link referred to above that is now a dead link. For future visitors I've salvaged the content and posted it here:

http://72bay.blogspot.co.uk/2014/11/vw-type-4-engine-codes-and-numbers.html

[JustBuggy]

Thank you whoshotjr for saving that info!

It's really too bad that the rest of Tunacans website is no longer available. That was the most helpful collection of T4 info in a small space that I've ever come across.

I really hope there is more of it that someone else had the same forethought to save for the future.

[whoshotjr]

No problem, if you spot another specific Tunacan link that is dead let me know and I may be able to recover it from the deep memories of the interweb.