Hello,
I have a bit of a project on the go. I have a 1977 VW camper. the engine is a 2000cc base that i big bored up to 2354cc . I removed the fuel injection because i am not sure how it would handle the bigger engine. Right now i have a after market intake that holds one 2BBL carb in the center. I have a 2bbl carb off a 1977 Pinto, I believe it is the 5200... i can't remember right now and the carb isn't in front of me at the moment.
1st question, there are two vacuum fitting on the base of the carb... which is for what? where dose the vacuum advace hook up ?
2nd, I also have a vacuum fitting on the electric choke it seems... do i need this.. and if so, where and why ?
3rd, also looks like this carb has a electric bowl vent on the top of this carb... where dose this go and why ?
I am also thinking about hooking up a carbon canester... the VW tank really needs one with the tank vent system... i just have to mix the two different systems into one so dose any one have a diagram of a Pinto's carbon canester set up ?
I did get the van running for about 15 minutes but has some issues... not every thing is hooked up yet but i think it might have some thing to do with the bowl vent or the fuel pressure. I read in my big car manual that pinto had fuel pressure of 4-7 PSI. so i went with this pump " http://www.cip1.ca/ProductDetails.asp?ProductCode=C13%2D41%2D2520%2D8 " 4-8 psi
But don't give me too much flack, I had a pinto a few years ago... what a fun car. 1980 panel wagon dressed up to look like a 72, 302, 5 spd... very fun car.
Thanks for all and any of your help, Kevin
Ok, I supose i didn't make it too clear. But this is for a 1977 VW Camper... as in a air cooled VW Van
Thank, Kevin
Hello Nemos,
I worked on a lot of later type IIs with dual carbs and type 4s with fuel injection. Darn near Porche material!
Unfortunately I always had problems with big bore kits in vans during hot weather.
I think the Pinto carb is a good option if you want to chuck the fuel injection. However, I think the fuel injection will handle the larger displacement. I have seen some pretty fast type 4's!
You probably have a dual diaphram distributor, that's for smog. I would suggest a fully centrifugal distributor that you can buy for VW's. I think they were called Bosch 044 distributors. You will need to advance the timing to around 8 degrees at idle. (The timing on VW's were set with the vacuum retard operating, so you CANNOT use the same timing marks with the centrifugal distributor)
If done right, you can eliminate all the charcoal canister system to save weight. You can block the vent line to the tank and drill a tiny, I repeat tiny, hole in your gas cap to vent the tank.
Forgot to say... The Bosch 044 distributor will not work if you keep the fuel injection, only if you go carburated.
In my day we used to make adapter plates for Volkswagen Rabbits and Opels to adapt the Pinto Carb. It solved a lot of problems and were cheaper than a new Solex (I think) carbs.
There were also non-smog performance aftermarket versions available back then. I don't know about today.
as far as the " dual diaphram distributor" I do know for a fact that i do only have the single diaphram distributor
and as far at the carbon canester goes, I will put one back in... the VW has a huge maze of vent lines that go up into the cooling ducts and the system works well and hurts nothing