stock 1200 upgrades?

[joshua jones]

my 65 has a stock 1200. runs like new. previous owner had rebuild with lots of new parts dist, carb, etc. it runs so well just not enough power. i know i cant expect much out of a 40 horse but does anyone know any affordable upgrades like exhaust or bigger carb maybe? without sacrificing the reliablity of my little sewing machine, thanks

[sixfootdan]

I judson supercharger would be expensive but really cool.
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[volksfiend]

if you can scrounge up an old 40 horse Kadron manifold they will do wonders. If you cannot find them then you can get a nice new set of weber ICT's for the singleport. This with a little free-er exhaust will wake it up nicely. If you still want more a set 1.4 rockers and heavy valve springs will round out the bolt on goodie package. Or you could just get a Judson

[ovalvwfan]

You said "set of Webers"...dual single port carbs?? I'd love to juice up my 1100 a bit.
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[volksfiend]

http://www.aircooled.net/new-bin/viewproductdetail.php?keyword2=FSK0001&cartid=1126200598302425

[ovalvwfan]

Yipes! Pricey! Think I'll keep that cash in my savings for my 1776cc! Thanks for the link tho.
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[RareAir]

You can ream the main jet out of the carb to a larger size. Maybe 1 or 2 sizes larger. It'll use more fuel, but you'll gain a slight noticeable increase.

[ovalvwfan]

That's a good idea...ream w/ a regular drill and bit? What size bit?
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[hlwimmer]

danny zepeda used to sell a dual carb kit... i think it ran a pair of 28s and mushroom aircleaners (or here) for a 40horse... you might also look @ steph's 4-tip abarth repro. then, there's always the okrasa 40horse kit. i'll admit, though, i'm biased to the old-speed parts. you could likely drop in a stock 1600 for the same price.

[glandnut]

I just picked up an old Kadron single port manifold set up with the metal balance tube that ties it all together. I'm thinking of modifying it to fit the smaller diameter, flat intake ports for my 40 horse. Don't forget, the port size and angle is different for 40 horse heads versus later single port heads. Those ICT kits don't fit 40 horse.
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Looking for aluminum single port Kadron manifolds.

[glutamodo]

A stock 1192 40HP won't have much in the way of improvements from bolt on upgrades. They were designed to be small motors designed for economy instead of performance. I've tried larger main jets before, but never noticed much difference other than worse gas milage. If you put an extractor on it, going up one size in the main jet might help. Some small dual carbs would be better. A bigger single carb won't make much difference, the intake manifold is small, and the heads have small valves. And those old "bugspray" carbs they sold for 40HP are a waste, way overcarbed and not worth messing with.

All of the 40HP motors I've run have had the larger 83mm big bore kits on them, making them 1385cc in size, which helps a lot. There's been many topics devoted to hopping up the 40HP motor on here before, here's a few of them:

http://www.thesamba.com/vw/forum/viewtopic.php?t=130453

http://www.thesamba.com/vw/forum/viewtopic.php?t=123839

http://www.thesamba.com/vw/forum/viewtopic.php?t=124701

But if you aren't going to keep the 40HP, I'd just live with it the way it is now, enjoy the good gas milage, learn to drive within the car's limitations, while you save for the big motor you want to use.

andy

[crazyman_stanley]

interesting stuff...how about the same question on the 1500? what are some easy upgrades? would the dual weber setup help out alot on the 1500's as well or is there a better set up. thanks for the help

[crazyman_stanley]

also would it be worth it to upgrade to dual port heads, or would it make more sense to just get a whole new engine?

[RareAir]