62 1200 40 hp convert to dual carb

[Jens-Ole]

Your answer is right here It must have been modified at som e point.

[Danwvw]

[John Moxon]

[Danwvw]

Found a 1967 Beetle for sale that has what seems to be a 1200 engine in it with Dual Port heads, Could anyone enlighten me as to just what the engine is and could it be a original set-up?

[Stuntmanus]

[Type1xperience]

I hope anyone can give me a good advice on a possible Vintage Speed project.

I will be working on 2 ACVW engines (greenhorn alert). What are the best and economical combinations for each engine? I am planning to use dual carb set ups for both engines.

Engine 1
Stock 1200cc
Engine 2
Stock 1300cc

Thanks!
_________________
(o\!/o) Fweem! Fweem!

1963 Type 1 Deluxe sedan
1972 Type 1 Deluxe sedan
1978 Scirocco
1978 Passat

[1960vw]

My 40hp with big bore kit, 1300 heads,1500 rocker arms, dual 34ICTs,009 dist, S&S headers. Runs awesome!

[PEPPE]

1385 fits 87mm cases. if you want to upgrade to upgrade the 90mm 1200 you have to use a 1470 kit that uses 90mm register.
if you have to remachine the barrel surface you can also upgrade to 1650cc kits (90.5)
pm me if you need help. i do them regularly.

[Faina81]

Hi this 1385 kit fit in all carter?
I have a AS41 carter with cylinder hole 90mm.....
Can I use a 1385 Kit or what I've to do for increase my displacement?

[John Moxon]

[Mango_64]

Does anyone have a place to buy the Fram Oil Canister setup?

Thanks

Mango

[Mango_64]

[glutamodo]

Straight cut cam gears? Yeah, they'll fit. I don't think I'd want to put them in something like this, but yes you can. They can be noisy and only really needed when you are using really strong valve springs.

Do you have a case that's cut for cam bearings? VW blocks through 1965 did not have them.

1300 single ports - you can put a set of Weber 34 ICTs on there

[WesleyGarrard]

You can run straight cut gears. However, unless you are using heavier springs they are not necessary... Unless you enjoy the wine.

With 1300 single port heads there are many dual carb options.

The Kaddie Shack has Kadron kits for single ports but these may be too big.

CB Performance offers a Solex 34 PDSIT Carb kit. I have this one. The linkage is terrible but it does work.

Weber also makes a 34 ICT kit for single port engines.

There may also be the Baby Delltoro option.

[Mango_64]

Thanks Steve22 for the link and a Big thanks to you Andy for the knowledge about this big bore kit info. There is a lot of info that I did not know about these smaller motors and what they can do. Now for a couple of more questions...

1) Can i run straight cut gears ?
2) If i run 1300 heads, can I run a dual carb setup and if so, who makes a kit?

Thanks again guys for all the help, i'm getting really excited about these vintage speed motors. For me it's not about keeping up with the Joneses as far as motors size but to be just a little different in the motor area of my build that is not just an ordinary 1200 that came in my 64.

Mango

[glutamodo]

Most of the big bore kits made in the 1960s thru the 1990s were easy bolt-on kits. (82mm was another size that was out there but those haven't been made in a long time now) I think COFAP was one of the last companies to make them.

One potential issue is they often raise compression ratio - that's one thing you'll have to check for when fitting them, and decide if you'll just run high octane or if you want to shim the cylinders to bring the compression ratio down. In the past, I've just gone with higher octane. My current engine ended up with a lower CR than I expected, and I can get away with regular unleaded. (I think I'm running an older Cima/Mahle set right now)

Then in the mid 2000s, Mahle in Brazil (no Cima on them this time) decided to do "one last run" of them... and I don't know how big that run was but they've been available for many years now. However, I think they adapted a piston design from some other application, as it was shaped differently than any other VW that I've ever seen.

They work, but there is a problem, they may not clear the engine case, usually on just one or two out of the four.

If that occurs, the case or the pistons will need to be clearanced. On an assembled engine, it might be hard to do and not get shavings in the works. But if you do pistons, you'll need to do all of them so they will still match in weight.

http://www.wolfsburgwest.com/cart/DetailsList.cfm?ID=111198057ABB

http://www.cbperformance.com/catalog.asp?ProductID=1650

https://bugcity.com/shop/shop.htm?pquery=mahle+big+bore+40+hp



Now, more recently, "AA" out of China has made these. I've not seen them in person to know if they have any fitment issues. They are cheaper than the Mahle/Brazil ones though.

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&...&rt=nc

http://www.vwparts.net/AA8300T40.html

http://vwparts.aircooled.net/83mm-Piston-Cylinder-...-in-aa.htm

-Andy

[Steve22]

http://www.thesamba.com/vw/classifieds/search.php?...ton=Search
_________________
'65 Karmann Ghia 'vert
'73 Super Beetle
'59 Beetle ragtop
'73 Sunroof Transporter

[Mango_64]

[glutamodo]

Ah, yeah, that is right, was thinking SP vs DP. With the older 40HP engines it's diferent. Depends if you're set up for round boss or short boss heads. Round boss 40HP heads use 177mm upper studs, square boss 40HP heads use 193mm upper studs.

[Jens-Ole]

That's strange the inner were perfect length but the outer were top short on my 63 40hp. Might be different to earlier engines?
But it's true about the cracks. You need to trust the seller. Most I've seen are fine.