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  #1  
Old 08-22-2007, 05:52 PM
sixto's Avatar
smoke gets in your eyes
 
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turbocharge a 40HP VW???

http://sfbay.craigslist.org/pen/pts/402506706.html

It'll blow up while cranking.

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  #2  
Old 08-22-2007, 07:24 PM
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Hey why not? Those low compression engines are perfect for turbocharging. You just have to add an external oil cooler.
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  #3  
Old 08-22-2007, 07:56 PM
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There's a turbocharged 4 banger VW drag racing. Hitting nice numbers too.
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  #4  
Old 08-23-2007, 12:24 AM
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saw a sweet 52 zwitter at bug jam last year with a big T4 on it.. I do believe it had a Porsche swap..

but the flat 4's can handle the boost
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  #5  
Old 08-23-2007, 12:29 AM
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Eh, they aren't terribly long lived engines anyways, probably 100K per rebuild right?
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Old 08-23-2007, 12:38 AM
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I know of a guy with a turbo bug running 28# of boost that runs sub 6 second 1/8 miles.
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  #7  
Old 08-23-2007, 01:12 AM
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smoke gets in your eyes
 
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1300/1500/1600 can be built to take it but you can bet the ones that last have forged counterweighted cranks, forged rods and forged pistons. 25-40 HP are best left alone. That didn't stop EMPI and Okrasa (sp?).

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  #8  
Old 08-23-2007, 01:47 AM
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Vintage turbo setups DID indeed exist (as previously mentioned...Okrasa) for the 36 and 40-horse motors.

VW pancake motors, though reliable, required a lot of tweaking when you added performance parts (ask me how I know)...
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  #9  
Old 08-23-2007, 01:59 AM
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I was watchin some show on TV where they put in some sortof 130HP crate motor into an old beetle and it was lifting the front tires easily at the drag strip. Granted there isn't much weight up front, but still...

Gotta love light weight cars!
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Old 08-23-2007, 07:51 AM
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There is a guy here locally that has a baja bug with a turbo from an old VW Quantum.
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  #11  
Old 08-24-2007, 12:26 AM
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IIRC, Judson used to offer a supercharger for the old 36/40hp engines. A flat four with counterbalances welded onto the stock forged crank (all stock VW cranks were forged) can really wind. Back in the day, I built a 1641cc Type III dual Weber engine that I had dynamically balanced, prior to assembly. That baby was torn down at 75k, and had no appreciable wear, whatsoever.
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  #12  
Old 08-24-2007, 02:42 AM
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smoke gets in your eyes
 
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This is about as extreme a mod as I've seen -

http://www.almar.easynet.be/Old_VW_engine.jpg

Picture is blurry but the arrangement siameses piston pairs so one cylinder supercharges the other.

IIRC that's an integrated starter and generator at the far end.

Looks like a roller bearing crank, too.

Sixto
87 300D
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  #13  
Old 08-24-2007, 02:48 AM
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Here you go -

http://cgi.ebay.com/ebaymotors/NOS-SPG-Roller-Crank-VW-1200-40HP-Stroker-69mm-Okrasa_W0QQcmdZViewItemQQcategoryZ107063QQihZ016QQitemZ260152044631QQrdZ1QQsspagenameZWDVW

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87 300D
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  #14  
Old 08-24-2007, 07:28 AM
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Quote:
Originally Posted by Ara T. View Post
I was watchin some show on TV where they put in some sortof 130HP crate motor into an old beetle and it was lifting the front tires easily at the drag strip. Granted there isn't much weight up front, but still...

Gotta love light weight cars!
Notice they all run wheelie bars?

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