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40 HP engine build with a 1385 ccm big bore kit
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62ItalianRagtop
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PostPosted: Mon Jun 06, 2016 11:32 pm    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

Compression ratio 8.2

62ItalianRagtop wrote:
Here mine

Big Bore 1385cc AA
Stock cranckshaft
Cam Scat C25
Stock square boss heads
Dual SOLEX 34PCI NOS with Riechert linkage, filters and manifolds
Screamer Kit NOS (Bosch 019)
FRAM Filter NOS
Abarth 4 tips muffler

Image may have been reduced in size. Click image to view fullscreen.

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62ItalianRagtop
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PostPosted: Mon Jun 06, 2016 11:43 pm    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

So, in your opinion, which is the best carb for a dual carb kit on a 1385cc big bore ?

1) 28 PCI
2) 32 PCI
3) 34 PCI
4) ....

I have two 34 PCI; these carbs haven't automatic choke and their setup is quite difficult.
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prkid424
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PostPosted: Wed Jul 13, 2016 10:51 am    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

not to hijack the thread but how/where does that external oil filter install to the block. I see that one hose used a banjo (?) style bolt to where the oil pressure sensor goes but where is the other end go? Does one have to drill/tap a hole on the block somewhere?
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Envious
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PostPosted: Wed Jul 13, 2016 11:00 am    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

prkid424 wrote:
not to hijack the thread but how/where does that external oil filter install to the block. I see that one hose used a banjo (?) style bolt to where the oil pressure sensor goes but where is the other end go? Does one have to drill/tap a hole on the block somewhere?

Some people drill a return into the generator stand or you can use a hollow stud for the distributor and connect it there.
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http://www.thesamba.com/vw/forum/viewtopic.php?t=388225
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prkid424
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PostPosted: Wed Jul 13, 2016 3:41 pm    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

Would that work for any external oil filter setup? Or is it specific to the oil filters showed here
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PostPosted: Fri Jul 29, 2016 4:36 pm    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

It works with other oil filters,too. But, the FRAM FP3 filters are the nicest! They are not so big, like the FP4...
The oil goes back from the external oil filter to the engine case at the back side of the generator stand. There is a special bolt, which should be change before installing this kit.

prkid424 wrote:
Would that work for any external oil filter setup? Or is it specific to the oil filters showed here
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prkid424
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PostPosted: Fri Jul 29, 2016 4:44 pm    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

Where would one find the special bolts needed to do this?
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akomjathy
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PostPosted: Fri Jul 29, 2016 4:49 pm    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

Try to contact with Mike, maybe he can help you!

http://www.thesamba.com/vw/forum/profile.php?mode=viewprofile&u=34259

prkid424 wrote:
Where would one find the special bolts needed to do this?
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OLD VW NUT
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PostPosted: Fri Jul 29, 2016 9:32 pm    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

prkid424 wrote:
Would that work for any external oil filter setup? Or is it specific to the oil filters showed here

It isn't a true external filter setup like you might think. Its a bypass filter. A small percentage of maybe 5-10% of the oil is routed away from the oil pressure sender adapter and is pumped up into the top of the filter. From the bottom of the filter it is gravity fed back into the engine case. Better than no filter at all but not nearly as good as a full flow setup IMO. Make sure you have a decent pump with good pressure if you go this route for a filter. This type of setup will bleed off a percentage of the oil pressure and the 40hp doesn't have a lot to spare to begin with. Worn out cam saddles can absorb a lot of oil pressure - having the case machined to accept the later 1300 and up cam bearings is a must if you want a bypass filter setup and have decent oil pressure.

I built a few of these motors back in the 70's. It was a popular and not too expensive HP addition. Finding a 1500/1600 motor back then wasn't an easy task since they hadn't been around for very long. It was something you could feel in the seat of the pants though. Add a decent extractor exhaust and a small 2 barrel carb like the Holly 200cfm kit and you had a pretty nice bug or ghia.
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galencurrington
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PostPosted: Fri Jan 20, 2017 6:43 am    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

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i have one of these kit i found nos at bugjam last year and i'm thinking about actually running it on my bay panel. i know it's just a bypass kit and not a full flow but like someone said it's better than nothing. my question is are they any count at all do they actually work what size oil pump should i use to run it. i'm building a mini stroke for my 70 panel and i think this would look really kool. it's just going to be a 88x74 with single carb and a super mild cam to look stock.
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SBD
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PostPosted: Fri Jan 20, 2017 7:47 am    Post subject: Re: 40 HP engine build with a 1385 ccm big bore kit Reply with quote

They work. I'm sure it's better than nothing. There's a little info here.
http://www.thesamba.com/vw/forum/viewtopic.php?p=7903415&highlight=#7903415
I've got one on my car. It was there when I bought it. My engine is a tired 1600 single port. When I build my 2110 stroker (still gathering parts) I plan to use a filter pump. I'll probably catch as much hell for that as you're going to get if you put the bypass filter on yours. Very Happy
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mark tucker wrote:
I wouldent waste $ or thyme on building a small motor. build it big so it dosent have to work hard.remember it's only as fast as your foot alows it to be unless you build a small turd then it just stinks as it squishes up through your toes when you step on it.
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