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J A Red Samba Member
Joined: July 12, 2008 Posts: 86 Location: Peachland, BC, Canada
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Posted: Wed Aug 24, 2016 11:00 am Post subject: 36hp upgrade option |
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After a couple years of work, I finally got my oval on the road. It has a stock 36hp with the WW Okrasa kit on it.
I'm finding it hard to keep the carbs properly tuned, and that I'm wanting a little more zip out of the engine. I'm thinking about doing the crank and cam this winter but am looking for an option for replacing the carbs. I've been looking at the "Souping up the VW" book (see the tech specs in the picture) and was originally thinking it might be nice to build my engine into a 1500 super. After seeing how much machining would be involved I started looking at the Denzel 1300 specs. What are the thoughts on building a similar engine using the dual port heads and stroker crank from WW, a set of 40mm Carbs (solex or weber) and matching the valve sizing? It would be a 77x69.5 instead of a 78x67 but seems close enough to be doable.
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hoss Samba Member
Joined: May 01, 2003 Posts: 788 Location: San Jose, CA
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Posted: Wed Aug 24, 2016 11:51 am Post subject: Re: 36hp upgrade option |
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Reed,
Beautiful engine. Did you have Joe Ruiz (Mr. Okrasa) re-bush and setup those carbs before installing them? _________________ '54 Kombi | '57 356 Coupe | '57 Samba | '62 Notchback | '63 Beetle (36k Original Miles) | '66 Pigalle Sunroof Squareback | '70 Westy |
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J A Red Samba Member
Joined: July 12, 2008 Posts: 86 Location: Peachland, BC, Canada
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Posted: Wed Aug 24, 2016 1:07 pm Post subject: Re: 36hp upgrade option |
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Thx, no I haven't had the carbs re-bushed yet. I want to see what other options are out there first before I spend more money on these carbs. |
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ibilisi Samba Member
Joined: August 12, 2011 Posts: 45 Location: United States
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Posted: Wed Aug 24, 2016 2:48 pm Post subject: Re: 36hp upgrade option |
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txoval is working on such a build right now. Speedwell intakes on okrasa heads with 40s. Well, I'm not sure whether he had the ports altered on the okrasa heads but I know they were tweaked by Mr.Motorhead here on thesamba.
tobiasax did something similar but used Stefig Zenith manifolds and a 69mm crank, stock cam.
I would search the "Drag Racing and a 36hp unlimited class" thread for a bunch of information and HP and Flow numbers on many combinations and maybe check posts by those guys for their recent thoughts. |
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ibilisi Samba Member
Joined: August 12, 2011 Posts: 45 Location: United States
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Posted: Wed Aug 24, 2016 3:37 pm Post subject: Re: 36hp upgrade option |
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Oh and here is the link to Mr.Okrasa's ad on tuneup of the carbs. I believe they don't have the original spec jets installed which he will handle when he rebushes as hoss mentioned : http://www.thesamba.com/vw/classifieds/detail.php?id=1316478 |
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txoval Samba Member
Joined: January 23, 2004 Posts: 3540 Location: The Woodlands, TX
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Posted: Wed Aug 24, 2016 7:51 pm Post subject: Re: 36hp upgrade option |
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I ended up going with dual Italian 36IDF's
Okrasa heads, intake ports were lightly cleaned up, exhaust ports had a lot of work done, three angle valve job
I still need to complete the install...but wouldn't hesitate if I was you.
Beautiful car! |
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sled Samba Member
Joined: February 16, 2005 Posts: 6171
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Posted: Thu Aug 25, 2016 7:43 am Post subject: Re: 36hp upgrade option |
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36 drla's on speedwell manifolds, everything else as you describe.
would be an awesome engine
oh and look into having the combustion chambers welded and shaped. _________________ drive your split. |
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GTV Samba Member
Joined: March 27, 2004 Posts: 2084 Location: Si'ahl
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Posted: Thu Aug 25, 2016 8:20 pm Post subject: Re: 36hp upgrade option |
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Do you want to keep the engine period correct? If so, DRLA's or IDF's would not fit the bill. Dual Zenith's would be a better option. _________________ EMPI Power Rules! |
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J A Red Samba Member
Joined: July 12, 2008 Posts: 86 Location: Peachland, BC, Canada
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Posted: Thu Aug 25, 2016 9:48 pm Post subject: Re: 36hp upgrade option |
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As much as I'd love to stay period correct, I've had to compromise for safety, by adding disc brakes, seat belts and modern tires. Would love a nice set of 40PIIs if I could find them but also like the idea of best carb for my money. So it'll probably come down to what I can find. I think my best option right now would be to get these repro Solexs sent off to Mr Okrasa, so I can at least drive the car for the rest of the season. Then I can work on the engine while the snow flies.
Here's another few pics
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