|
Sponsored Links (Register now to hide all advertisements) |
|
![]() |
![]() |
Thread Tools | Display Modes |
|
![]() |
#1 |
Senior Member
Join Date: Feb 2011
Posts: 2,132
|
![]()
I am interested in building a distributor myself.
Plan A - Looking for the specs or drawing with dimensions for a Chevy distributor to fit a Ford 8ba engine.
__________________
Tim Downtown, Ca Last edited by CA Victoria; 02-15-2023 at 08:19 PM. |
![]() |
![]() |
![]() |
#2 |
Senior Member
Join Date: May 2010
Posts: 2,532
|
![]()
Several rebuilders are making those just to fit the 8ba. Newc
|
![]() |
![]() |
Sponsored Links (Register now to hide all advertisements) |
|
![]() |
#3 |
Senior Member
Join Date: Feb 2011
Posts: 2,132
|
![]()
Great, maybe one of them will respond
__________________
Tim Downtown, Ca |
![]() |
![]() |
![]() |
#4 |
Senior Member
Join Date: May 2010
Posts: 4,581
|
![]()
Unfortunately I have lost my contact information for Charlie In New York. He has done a few for me and they worked great.
|
![]() |
![]() |
![]() |
#5 | |
Senior Member
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
Posts: 11,134
|
![]() Quote:
Tell Charlie that Coop, AND the rest of the gang, said hello! Charlie ny - Contact [email protected] (716) 440-8952 OR (716) 662-9159 Charlie Schwindler 5845 Cole Road Orchard Park NY 14127 . |
|
![]() |
![]() |
![]() |
#6 |
Senior Member
Join Date: May 2010
Location: FP, NJ
Posts: 2,771
|
![]() Sponsored Links (Register now to hide all advertisements)
If you can find Bubba's website, he gives a lengthy discourse on the additional mods he makes mainly on the vacuum (he tosses it) and the centrifugal in terms of weights and springs. http://www.bubbasignition.com
__________________
Don't never get rid of nuthin! Last edited by PeteVS; 02-16-2023 at 06:26 AM. |
![]() |
![]() |
![]() |
#7 | |
Senior Member
Join Date: Jun 2016
Location: Pahrump, NV
Posts: 393
|
![]() Quote:
16 degrees @ 1800 RPMs. Grant total of 20 degrees + the 2 on the wheel @ 2400 RPMs. Don't be so eager to "toss" the vacuum can. I've got mine set to 14 degrees @15" using manifold vacuum. Very smooth idle and throttle response. The biggest benefit is cooling. That is accomplished because the closing of throttle plates at idle. |
|
![]() |
![]() |
![]() |
#8 | |
Senior Member
Join Date: Oct 2015
Location: Socal
Posts: 795
|
![]() Quote:
|
|
![]() |
![]() |
![]() |
#9 | |
Senior Member
Join Date: May 2010
Location: Oshkosh, Wi
Posts: 4,545
|
![]() Quote:
|
|
![]() |
![]() |
![]() |
#10 |
Senior Member
Join Date: Sep 2013
Location: SoCal-Redlands
Posts: 3,077
|
![]() All I know is that I have a Bubba centrifugal advance only Chevy distributor on my 8ba and it was the best thing I ever did to it. Runs like a top right out of the box. My 8ba is stock except for EAB heads so don't know if things might be different with a modified engine?
__________________
Making the simple complicated for over 30 years. |
![]() |
![]() |
![]() |
#11 | |
Senior Member
Join Date: May 2010
Location: Oshkosh, Wi
Posts: 4,545
|
![]() Quote:
|
|
![]() |
![]() |
![]() |
#12 |
Senior Member
Join Date: May 2010
Location: FP, NJ
Posts: 2,771
|
![]()
I believe he said that the vacuum advance isn't worthwhile with multiple carb applications. I don't think that there are too many out there running improved distributors with a single Stromberg.
__________________
Don't never get rid of nuthin! |
![]() |
![]() |
![]() |
#13 |
Senior Member
Join Date: May 2010
Location: Charlotte NC KiWi-L100 available here
Posts: 2,991
|
![]()
Go with CharlieNY. you won’t regret.
|
![]() |
![]() |
![]() |
#14 |
Senior Member
Join Date: Jul 2010
Location: Yorba Linda, CA
Posts: 908
|
![]()
https://myflatheadford.com/sbc-distr...8ba-flatheads/
Think Mike Davidson's book had a drawing of the changes.
__________________
Henry Ford designed the flathead without the aid of a computer. |
![]() |
![]() |
![]() |
#15 |
Senior Member
Join Date: Feb 2011
Posts: 2,132
|
![]()
Thank you WGA,
The article posted was a big boost.
__________________
Tim Downtown, Ca |
![]() |
![]() |
![]() |
#16 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,918
|
![]()
Back in the late 60's I saw a chevy distributor in a flathead someware. I asked the guy where he got it and he said he made it by coping the flathead distributor and it was quite easy. I picked one up and copied the ford distributor and it ran quite well except the vacuum advance caused dentition, so I didn't use it. After awhile I found out why?????? and then I made several for my friends, because it was much cheaper than the Mallory unit. In my book you can see some. Who;d have thought it would create an industry of it's own.
Gramps |
![]() |
![]() |
![]() |
#17 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,918
|
![]()
The ignition system should be designed to provide the proper timing for ALLLLL load conditions for the engine. The chey distributor modified ny Bubba & Charley can do that. The number and type of carburetors doesn't make any difference.
Gramps |
![]() |
![]() |
![]() |
#18 |
Senior Member
Join Date: Jun 2016
Location: Pahrump, NV
Posts: 393
|
![]()
Our flatties respond very well to the use of a vacuum advance can. The auto manufacturers put a vacuum can on their ignitions for a reason. None of them ran a “centrifugal only” system.
Something that needs to be said here, depending on driver input/throttle position. Ported (venturi vacuum) ADDS advance. Manifold vacuum SUBTRACTS advance. I chose to run manifold vacuum on the ’49 and the ’69 BBC Camaro because of slow speed/cruising cooling. ALSO, drivability, fuel economy and idle quality especially on performance motors all played a part in that decision. Next time you are futzing with your tune-up jack up the initial timing a bit. Immediately your idle speed increases. Reason being more of the idle mixture is being used. Since you can close the throttle plates AND lean out the idle mixture to maintain the same idle stands to reason you are using less fuel and creating less heat at an idle. |
![]() |
![]() |
![]() |
#19 | |
Senior Member
Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,791
|
![]() Quote:
Ported vacuum is sourced from an opening that is situated just above where the throttle plates are situated at idle, so there is no vacuum advance until the throttle plates are opened slightly. When you "jack up the initial timing", you are also adding to the total timing so you may be over advanced at high RPM which can lead to detonation which can lead to damage even if you can't hear it! Use a timing light. ! |
|
![]() |
![]() |
![]() |
#20 | |
Senior Member
Join Date: Jun 2016
Location: Pahrump, NV
Posts: 393
|
![]() Quote:
My "jacked up" comment was to prove a point, our flatties like a lot more advance at an idle. I posted the timing I use at the beginning of the thread. Without knowing true TDC AND verifying the timing curve in your distributor a timing light is a feel-good device demonstrating a “ball park” setting. |
|
![]() |
![]() |
![]() |
|
|
Sponsored Links (Register now to hide all advertisements) |
|