The Ford Barn

Ol' Ron · 02-17-2013, 11:55 AM

When running a SBC distributor in a Flathead, you can't use the original spark curves as the Chebby has a totally different combustion chamber. However the GM unit is easy to Taylor the curves which makes then very valuable for tuning the curves for different applications. The only problem is the person tuning the engine rarely finds the optium performance of the ignition/carb combination. Over the past few years Richard and I have tried hundreds of combinations to find the best one for OUR application. Whats frustrating is the fact that many combinations run very well and the average person may stop there, when they feel they've found the best performance. The Flathead is a very forgiving engine and runs very well when system is almost right. My future testing this summer will be done with an almost stock engine, the only modification is higher CR (7.5) and the ignition/carb combination. We'll see what kind of performance and economy we can get from that. Stay tuned.

BUBBAS IGNITION · 02-18-2013, 10:13 AM

A final spin and test and its out the door !!

Gumpy · 02-18-2013, 04:11 PM

Quote:

Originally Posted by 36tbird

Bubba, can you please show a picture of the trash receptacle that these should go into?

Bubba

thankyou for your shares over the years I appreciate the Learning curve!

Pjneedham88 · 09-20-2019, 10:21 PM

What weight spring did you use. I was thinking about doing the same to mine when I rebuild it

Pjneedham88 · 09-20-2019, 10:24 PM

Quote:

Originally Posted by richard rink

I am running dual 94's on an 8CM, getting a vacuum signal off one of the carbs. I appreciate that the signal is diminished because of the dual set-up. To amplify the effect of the reduced vacuum, I removed the two springs on the breaker plate and installed a single, weaker spring. A small amount of suction causes rotation of the plate. In operation, with a heavy foot on the accelerator, there is sufficient advance to cause "pinging." Acceleration is excellent. This is very much a shade tree kind of approach, but I am satisfied that the set-up works. .

What weight spring did you use because I was thinking of doing this too.

JSeery · 09-21-2019, 01:05 PM

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I understand you can sorta make this work, but if it was me I would get a better setup.

02-17-2013, 11:55 AM	#21
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,857	Re: 1949-1953 Loadamatic Distributor When running a SBC distributor in a Flathead, you can't use the original spark curves as the Chebby has a totally different combustion chamber. However the GM unit is easy to Taylor the curves which makes then very valuable for tuning the curves for different applications. The only problem is the person tuning the engine rarely finds the optium performance of the ignition/carb combination. Over the past few years Richard and I have tried hundreds of combinations to find the best one for OUR application. Whats frustrating is the fact that many combinations run very well and the average person may stop there, when they feel they've found the best performance. The Flathead is a very forgiving engine and runs very well when system is almost right. My future testing this summer will be done with an almost stock engine, the only modification is higher CR (7.5) and the ignition/carb combination. We'll see what kind of performance and economy we can get from that. Stay tuned.

02-18-2013, 10:13 AM	#22
BUBBAS IGNITION Senior Member Join Date: May 2010 Location: SPEEDWAY INDIANA Posts: 4,148	Re: 1949-1953 Loadamatic Distributor A final spin and test and its out the door !! __________________ If it Makes Spark, we do it !!!! www.bubbasignition.com [email protected]

09-20-2019, 10:21 PM	#24
Pjneedham88 Junior Member Join Date: May 2019 Location: South Central Pa Posts: 12	Re: 1949-1953 Loadamatic Distributor What weight spring did you use. I was thinking about doing the same to mine when I rebuild it Last edited by Pjneedham88; 09-20-2019 at 10:27 PM. Reason: Delete please, can't find the button for it and I needed to add a quote

09-21-2019, 01:05 PM	#26
JSeery Member Emeritus Join Date: Nov 2012 Location: Wichita KS Posts: 16,132	Re: 1949-1953 Loadamatic Distributor Sponsored Links (Register now to hide all advertisements) I understand you can sorta make this work, but if it was me I would get a better setup.