Carb/Manifold Swap

parottthead · Post by **parottthead** » Mon Apr 17, 2006 1:18 pm

I am starting to work on my Spider 2000 I purchased last year. It is a Legend Turbo minus the original motor. The current motor has a 28/32 ADHA carb, although I have not been able to find the engine # to determine exactly what it is.
I am considering changing the carb and intake on the car. How much should a used single plane intake cost? I found one for $20, but that sounds awfully inexpensive.

Thanks for your input!

Brian

I am reposting this in the engine thread where it belongs!

So Cal Mark · Post by **So Cal Mark** » Mon Apr 17, 2006 3:33 pm

that is a pretty good price for the manifold, but they are plentiful so there isn't a real reason for them to be expensive. Can you get a pic to make sure there isn't severe electrolysis around the coolant passages? Other than stripped threads, there shouldn't be too much wrong with it

SpyderJoe · Post by **SpyderJoe** » Sat Apr 22, 2006 9:52 pm

I bought my intake for $25.00 so it is in line. Are you going to purchase a 34 ADF Carb or something different? I put the 34 ADF with 1800 intake on my 79 spider, (originally had the 28/32 ADHA Carb with stock dual plane intake), and I can notice a difference. there is more power as I wind her out thru the gears and the car seems to "breathe" easier...

good luck and have fun.

parottthead · Post by **parottthead** » Tue Apr 25, 2006 2:01 pm

Thanks for the input.
I checked with Pierce Manifolds and a 34 ADFA is $465. That seems pretty pricey for a carb that I thought was pretty common. Are used ones hard to find?

brian

So Cal Mark · Post by **So Cal Mark** » Tue Apr 25, 2006 3:31 pm

that particular carb is somewhat difficult to find used. The price for the new one is, unfortunately, about the going price. Once Weber got back into production prices took a pretty good hike.

parottthead · Post by **parottthead** » Tue Apr 25, 2006 3:57 pm

Is there a less expensive alternative I can use with the single plane manifold? I'm not able to spent $500 at a time for a weekend car no matter how much I like fiddling with it!

OK, I went back and read the article on mirafiori, and it looks like my best bet is a 32DMS or a 32ADFA. Pierce Manifold didn't have any 32 ADFA. I assume the DMS and 32 ADFA are no longer being produced? Are they readily available used?

Also, I have a friend who owns a machine shop, so I can probably get some work done for a decent price. When I get a single plane manifold is there any thing I should ask him to do to it? I'm planning on having him clean it up and bead blast it, but is it worth it to modify the ports?

brian

parottthead · Post by **parottthead** » Wed Apr 26, 2006 10:48 am

I tried posting the pic of the manifold I was thinking of buying for the experts to look at, but it doesn't appear to have worked.