Author Topic: Carburetor madness by Drew  (Read 52494 times)

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Gregwill16

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Re: Carburetor madness by Drew
« Reply #210 on: June 22, 2019, 08:25:04 AM »
No rush Drew. I'm of the "Don't rush the monkey if you want a good show" mindset. I did get my Galaxie shortblock back from the machinist earlier than I expected. But my Mustang engine has been waiting on me for awhile now, so you won't be holding me up.

falcongeorge

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Re: Carburetor madness by Drew
« Reply #211 on: September 23, 2024, 06:17:27 PM »
Due to the request made in another thread I'll be detailing some plating and other fun here.

This time I've been seriously busy..... work has been recalling me a lot, so I haven't had more than a few days at home.  Worse yet, when I did get home I'd immediately get a call that I am "on notice to ship out with 12 hours notice" so it's been hard to prioritize my projects.

That said, I'll repost a carburetor I did awhile ago.
Just an 1850, was gross.   I cleaned to perfection, drilled and tapped all bleeds as follows:
-2 Primary idle air bleeds
-2 high speed air bleeds
-4 emulsion bleeds
-2 power valve channel restriction bleeds
-2 secondary idle air bleeds
-2 secondary high speed air bleeds
-2 idle feed restrictions
-2 metering plate restriction
-2 idle feed restrictions for the secondary

I also added .140 downleg boosters
Everything got beadblasted than back to the ultrasonic cleaner, than hand cleaned, dipped in a pickle, water washed and than dipped in a dichromate to seal the metal.  Replated linkage and hardware as needed and redid the base plate like I wanted it.  I use SS plates that are a good bit thinner.

I've got 400 miles on this setup and it's probably the best 1850 based carb I've built.  All metal appears to be holding out with no signs of fading.
Like the downlegs in a 600, probably picked up a quick 35-40cfm, and gained some signal to boot. Nice move.

Tommy-T

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Re: Carburetor madness by Drew
« Reply #212 on: September 27, 2024, 04:48:35 PM »
Really late to this party.
I'm not the type who needs his carburetors to be purdy, they just need to work properly.
When I got the urge to modify my M/T Power Ram for 4 2 barrel Holleys, I got some pretty grungy ones that were cheap. I did that because I was really uncertain that set could ever be able to work at all.
One day after reading one of Drew's replies on this forum I sent him a PM and he spelled out a complete list of modifications in his message to make my set up of all 4 carbs working at the same time work well on a street driven vehicle. It was intimidating drilling and tapping metering plates, drilling brass set screws, replacing throttle blades, and so on, but I now have at least a better sense of what the effect of all the circuits are.
Thanks to Drew and his willingness to share information.
I put about 500 miles on my Comet this summer and plan to keep driving it until it gets too cold to go outside (70*F or so).
The looks at car meets are priceless. Most think I'm a masochist/genius. More impressive is the car starts right up, no blubbering or black smoke, and drives normal in traffic. Plugs stay a nice straw color.
Fun! I really can't thank Drew enough!   

falcongeorge

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Re: Carburetor madness by Drew
« Reply #213 on: September 28, 2024, 10:23:49 AM »
Really late to this party.
I'm not the type who needs his carburetors to be purdy, they just need to work properly.
When I got the urge to modify my M/T Power Ram for 4 2 barrel Holleys, I got some pretty grungy ones that were cheap. I did that because I was really uncertain that set could ever be able to work at all.
One day after reading one of Drew's replies on this forum I sent him a PM and he spelled out a complete list of modifications in his message to make my set up of all 4 carbs working at the same time work well on a street driven vehicle. It was intimidating drilling and tapping metering plates, drilling brass set screws, replacing throttle blades, and so on, but I now have at least a better sense of what the effect of all the circuits are.
Thanks to Drew and his willingness to share information.
I put about 500 miles on my Comet this summer and plan to keep driving it until it gets too cold to go outside (70*F or so).
The looks at car meets are priceless. Most think I'm a masochist/genius. More impressive is the car starts right up, no blubbering or black smoke, and drives normal in traffic. Plugs stay a nice straw color.
Fun! I really can't thank Drew enough!
I have an XF-8 in my stash, planning to use it on one of my falcons
« Last Edit: September 28, 2024, 10:31:10 AM by falcongeorge »

MRadke

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Re: Carburetor madness by Drew
« Reply #214 on: September 28, 2024, 12:47:14 PM »
Drew was hit pretty hard with this last hurricane.  https://www.facebook.com/share/p/h57nbAX7xZEQPoiu/