The Ford Barn

lonewolf · 06-06-2014, 07:35 AM

Does an ebu carb with the spark control valve work any better or worse on a 8ba motor than the correct 8ba carb. A friend of mine just bought a 50 ford coupe and the previous owner was really "selling" him on the y-block carb upgrade. Seems to run rich to me

1952henry · 06-06-2014, 08:03 AM

I think the EBUs (1954, I believe) had 1" venturis, but also, if I'm not mistaken, 54 jets.

Ross F-1 · 06-06-2014, 08:59 AM

I ran an ECC carb (1-1/16" IIRC) with spark control valve and couldn't tell any difference as far as vac advance. Too many variables for me to draw any conclusions about a performance improvement, but the Y-block models had significantly more flow and some internal improvements that seemed worth it. I was running #53 jets. Unless you open up the manifold bores I wouldn't expect a big difference.

Charlie ny · 06-06-2014, 09:40 AM

lone,
Always remember....lean is mean. Unless that '50 has lots of cu inches
and breathes and exhales deep a 94 with 51 jets will get her done. A higher
number power valve might help a bit. This is only my opinion.
Charlie ny

Ol' Ron · 06-06-2014, 10:09 AM

When changing carburetors on an engine that was not designed for it. You have to consider what affect it will have on ignition and AF ratio. As stated above if you don't increase the intake to the same bore as the carb, you're wasting your time and money. Done right this will improve the preformance of the engine. Check out JWL's book for some results of increased carberation.

lonewolf · 06-11-2014, 03:17 AM

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Well i went through an 8ba carb (51 jets) and put it on and it runs like a dream. No more black smoke. I checked the ebu carb after i removed it and it had 56 jets

06-06-2014, 07:35 AM	#1
lonewolf Senior Member Join Date: May 2010 Location: Michigan Posts: 464	8ba motor with a y-block ebu carb Does an ebu carb with the spark control valve work any better or worse on a 8ba motor than the correct 8ba carb. A friend of mine just bought a 50 ford coupe and the previous owner was really "selling" him on the y-block carb upgrade. Seems to run rich to me

06-06-2014, 08:03 AM	#2
1952henry Senior Member Join Date: May 2010 Location: North Dakota Posts: 1,618	Re: 8ba motor with a y-block ebu carb I think the EBUs (1954, I believe) had 1" venturis, but also, if I'm not mistaken, 54 jets. __________________ I dig coal, which provides motivation for EVs.

06-06-2014, 08:59 AM	#3
Ross F-1 Senior Member Join Date: Nov 2010 Location: NM Posts: 2,438	Re: 8ba motor with a y-block ebu carb I ran an ECC carb (1-1/16" IIRC) with spark control valve and couldn't tell any difference as far as vac advance. Too many variables for me to draw any conclusions about a performance improvement, but the Y-block models had significantly more flow and some internal improvements that seemed worth it. I was running #53 jets. Unless you open up the manifold bores I wouldn't expect a big difference. __________________ '52 F-1, EAB flathead

06-06-2014, 09:40 AM	#4
Charlie ny BANNED Join Date: May 2010 Posts: 3,019	Re: 8ba motor with a y-block ebu carb lone, Always remember....lean is mean. Unless that '50 has lots of cu inches and breathes and exhales deep a 94 with 51 jets will get her done. A higher number power valve might help a bit. This is only my opinion. Charlie ny

06-11-2014, 03:17 AM	#6
lonewolf Senior Member Join Date: May 2010 Location: Michigan Posts: 464	Re: 8ba motor with a y-block ebu carb Sponsored Links (Register now to hide all advertisements) Well i went through an 8ba carb (51 jets) and put it on and it runs like a dream. No more black smoke. I checked the ebu carb after i removed it and it had 56 jets

06-06-2014, 10:09 AM	#5
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: 8ba motor with a y-block ebu carb When changing carburetors on an engine that was not designed for it. You have to consider what affect it will have on ignition and AF ratio. As stated above if you don't increase the intake to the same bore as the carb, you're wasting your time and money. Done right this will improve the preformance of the engine. Check out JWL's book for some results of increased carberation.