Page 1 of 3 123 LastLast
Results 1 to 10 of 21

Thread: Dual 1-1/2" Riley Carbs

  1. #1
    Join Date
    Aug 2013
    Location
    Land of huge Lizards
    Posts
    99

    Dual 1-1/2" Riley Carbs

    Has anyone ran this Carb,

    I'm going to give em a try.
    Made this up for a 96" Panhead.

    https://youtu.be/zu9TSYK0Dbg

  2. #2

    Re: Dual 1-1/2" Riley Carbs

    No experience or information.
    Are the runners merged in the manifold, or completely separate all the way? I'm sure you anticipated this but 1 X 1.500" per 1 X 48" cylinder is too small (and the dual throat manifold is very restrictive as-is).
    Last edited by panic; 05-07-2019 at 11:23 AM.

  3. #3

    Re: Dual 1-1/2" Riley Carbs

    The only true way to run dual carbs and the intake size is still limited. I went to larger castings of the stock ports and a CV carb. Should make more power than the dual carb setup but not near as cool to look at. Seadub

  4. #4
    Join Date
    Aug 2013
    Location
    Land of huge Lizards
    Posts
    99

    Re: Dual 1-1/2" Riley Carbs

    Runners are separate ....

    IMG_2479.JPG

    Yeah, this is going on a 96" Panhead..
    Using S&S P-Series heads, Speed & Science 3-5/8" Jugs, STD early cases...

    Going to give it a shot, if it doesn't work out, will be looking for a S&S Two Throat Carb.
    Will bolt right up to the manifold being the only mod I did to it was weld on a support bracket tab...

    IMG_2481.JPG

    Really didn't want to do any mods to the P-Series heads ...
    Reason for choosing the Two Throat Manifold to make use of the Dual Riley's....

    As said, if it doesn't act right, back to the drawing board ...

    It's pretty much for show anyways, even got "Chopperdave" to cast some Kick-Ass air cleaners for the Beast ...

    IMG_2522.JPG

    IMG_1879.JPG
    Last edited by Dragstews; 05-07-2019 at 01:11 PM.

  5. #5
    Join Date
    Aug 2013
    Location
    Land of huge Lizards
    Posts
    99

    Re: Dual 1-1/2" Riley Carbs

    Here's the deal with these carbs...

    I'm building up a nice fairly big inch Panhead totally from the best of after/market parts.
    The owner lives in Wisconsin, when the motor is built, it will be shipped..

    Being the Riley's are done, I would like to do some tuning to them so it would be easy for the owner to be somewhat of a Plug & Play the motor into his frame.
    His motor still has a ways to go before I can call it done...

    So ..... What I'm thinking of doing is to stick em on my bike (It's 90 cubes} and do some Test & Tune....
    Be a little work for me to swap out the carbs ....

    Capture 52 SU.JPG

    Capture SU.JPG

    58377329_444014966171647_5735487657652256768_n.jpg

    Shoot, might be a bit of fun too .. !!
    Last edited by Dragstews; 05-08-2019 at 01:57 PM.

  6. #6

    Re: Dual 1-1/2" Riley Carbs

    Didn't george smith run dual Rileys on his bikes originally?

  7. #7
    Join Date
    Aug 2013
    Location
    Land of huge Lizards
    Posts
    99

    Re: Dual 1-1/2" Riley Carbs

    He did on his Knuckle drag bike called the "Tramp"



    Also another drag racer like them too ....



    Chet Herbert his bike was called "The Beast"



    And also the Drake Water Cooled Knuckle's ran em ...

    https://youtu.be/gsk5qK_TL6g
    __________________________________________________ _____________

    Tuning may go down easy ....



    I have attained the Info Book that Geroge Riley wrote up for tuning his carbs ....
    If I could post a pdf file, it shows a world of tuning info ....



    He even had tuning info for the Drake Knuckle ...
    Last edited by Dragstews; 05-08-2019 at 06:14 PM.

  8. #8

    Re: Dual 1-1/2" Riley Carbs

    Very strange. The big photo of the left size shows air scoops... backward. At speed, they reduce air flow into the throat.

  9. #9
    Join Date
    Aug 2013
    Location
    Land of huge Lizards
    Posts
    99

    Re: Dual 1-1/2" Riley Carbs

    Quote Originally Posted by panic View Post
    Very strange. The big photo of the left size shows air scoops... backward. At speed, they reduce air flow into the throat.
    Think I remember seeing photos of that bike on the salt.. Chet had a huge air-box on it ....

    Then again it's been a long time since I seen that photo, I could be wrong about the bike's owner...
    I'm old, with a touch of ..... https://youtu.be/P2aeOcy3PVA

  10. #10

    Re: Dual 1-1/2" Riley Carbs


Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. anyone here own a riley racing carb now or have in the past
    By Greg in forum Carburetor, Air Cleaner & Exhaust
    Replies: 19
    Last Post: 06-26-2019, 08:15 AM
  2. Dual Carbs
    By bianese in forum Harley 1936-1964
    Replies: 21
    Last Post: 11-16-2015, 08:08 PM
  3. DUAL POINT AND DUAL COIL for PANHEAD OEM
    By flat-happy in forum Motorcycles & Parts For Sale
    Replies: 2
    Last Post: 04-16-2011, 05:00 PM
  4. "Linkert Carbs - ITW" Experience
    By Black KH in forum Parts & Suppliers
    Replies: 1
    Last Post: 05-15-2010, 07:55 PM
  5. Dual carbs?
    By three13 in forum Shop Dope, Custom & Cut Down Motorcycle
    Replies: 16
    Last Post: 10-31-2009, 05:04 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •