Board index Flathead Power-Technical Questions, Answers, and Suggestions Big Twin Flatties S&S Super E on a U1200 ?

S&S Super E on a U1200 ?

Moderators: Curt!, Pa

Post Sat Apr 29, 2006 4:45 pm

Posts: 43
Location: Copenhagen
Hello

Does anyone have any experience in using a S&S super E on a U1200 ?
What jet sizes would you use ?
What would I do with a manifold solution, seems like S&S does not make a manifold for flatheads ?
Right now I´m running a super E on my stock 74" Knucklehead and I´m really satisfied, what are you guys expirience with jet size in that case ?
Any else i should know ?

"Flathead forever !!! (until Knuckle)"
Almo :D
member of KillerBobbers

Post Sat Apr 29, 2006 5:44 pm

Posts: 646
Location: Detroit
Whether it would or not you would have to make an adapter to fit the stock manifold to the new carb. With a short carb it is easy to do. I made one to run a Bendix on a 41 UL some years ago. It ran fine. More power? Maybe a little but you won't blow anyone away. Don't forget to drill a small hole in the bottom of your air cleaner housing/cover to let the excess gas supplied by the accelerator pump run out if your engine doesn't start. That way you might not have a fire if it kicks back.
New Knuckleheads? Thank, you, Jesus!!

Post Sat Apr 29, 2006 8:26 pm
panic

S&S super E on a U1200

Why?

Post Thu May 10, 2007 8:00 am

Posts: 39
Location: Miramar, FL, USA
I may attempt this myself for driveability, tuneability and that little extra shot o' power from the accelerator pump. The challenge would be to make or modify an adapter to the VL intake but it shouldn't be too tough. I have lots of other things to do before attempting this though.

Post Thu May 10, 2007 9:35 am
panic

"driveability"

I read this all the time, and I still don't know what it means.

Post Thu May 10, 2007 10:24 am

Posts: 39
Location: Miramar, FL, USA
It means 'easier to drive'.
John, 1934 VL, 1970 Mustang convertible - 351C auto

Post Thu May 10, 2007 10:27 am
JIm

Posts: 801
Location: Planet Earth
TOOOOOO frigin big.

If you want a pump put something smaller on that has one. A Bendix is an easy application with an adapter. 36 and 38 MM. Use a Mikuni with a pump add on, plenty of sizes. CV off a late model HD works real good and gives great mileage. Wouldn't bother with a Toiletson of an early Kien. There are a bunch of carbs with pumps that can be adapted.

Agree with Panic, Driveability? They all run.

I have run a DC Linkert, Bendix, and CV on my Flathead UL. They all run great. The CV and the Bendix both delivered good power and mileage close to 35 to 38 MPG. The DC worked well also. And I am pulling over 1,000 Lbs. when two up.

Jim
Last edited by JIm on Thu May 10, 2007 10:33 am, edited 1 time in total.

Post Thu May 10, 2007 10:33 am

Posts: 39
Location: Miramar, FL, USA
What other carbs out there have accelerator pumps and can be easily tuned?
John, 1934 VL, 1970 Mustang convertible - 351C auto

Post Thu May 10, 2007 10:46 am
JIm

Posts: 801
Location: Planet Earth
The ones I listed are a dime a dozen, some are better than others.

No matter what carb you use other than a Linkert, it will need an adapter. All carbs are relatively easy to dial in, it depends on the person doing the work. Going bigger is not always better, it's just that most carbs are bigger by design. If you want easy tuneability, without having to drop the bowl and change jets or take the top off to change needles or height, then try a Bendix with an adjustable jet. One suggestion on a Bendix, use a small tie wrap on the bottom of the pump boot to hold it tight to the bowl. They can make a mess. If you want to do more work with jetting then try a CV. There are people selling adapters for them, I no longer make them, just search the Net.

I would lean towards the CV.

Jim

Post Thu May 10, 2007 11:06 am

Posts: 39
Location: Miramar, FL, USA
I'll check my options and go with the one that suits the VL best. Thanks for all the info.
John, 1934 VL, 1970 Mustang convertible - 351C auto


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