FE Power Forums
FE Power Forums => FE Technical Forum => Topic started by: e philpott on December 07, 2021, 01:48:28 PM
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Anybody seen one of these new mixers yet ? Looks pretty sweet , nice video on all the features
https://www.edelbrock.com/vrs-4150-carburetor-750-cfm-1307-plasma-finish-1307.html
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I believe I want to try one.
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Looks good with lots of great features. That said, I'm surprised they invested the time as EFI has overtaken, as we all know, a huge chunk of the former all-carb market. They must have researched potential demand and found it still great enough to warrant the investment in a new design.
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Sometimes the simplicity of a carburetor fuel system is hard to beat , not sure what happened to the video but this carb has ribbed fuel bowls to help prevent sloshing and some neat features, the big screw up top on the side adjust by-pass air for big cams , no having to drill holes in the throttle blades ,
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Maybe they will offer larger carbs in the future.
I know several guys, (top sportsman, X275, quick 16, ect) that switched to efi and have went back to carbs. No doubt there's alot of efi racer's out there but I don't see carburetor's going away anytime soon.
JMO.
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I was thinking about an FST but if these are builtdin the USA like their other carbs I will buy one if they make an 950 CFM.
Greg
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Multiple sizes are available.
https://www.edelbrockgroup.com/wp-content/uploads/2021/11/Edelbrock-VRS-4150-Race-Performance-Carburetors.pdf
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Odd that it has no separate baseplate. But I've lost count on the number of Holley clones out there and how they aren't really all that different from what Holley is making. I can get multiple Holley versions using screw in bleeds and restrictors. I can do the same with all the clones. I use a QFT with all the doo-dads. With a case full of bleeds, restrictors, and jets, I found the best tune was what it came with out of the box. It took me days to get there, but that's where I ended up.
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Price(s)?
With TPS and IAC provisions, I assume you could easily adapt it as the throttle body in an EFI system.
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The TPS makes it easy to hook up to Electronic transmissions ,
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Sometimes the simplicity of a carburetor fuel system is hard to beat , not sure what happened to the video but this carb has ribbed fuel bowls to help prevent sloshing and some neat features, the big screw up top on the side adjust by-pass air for big cams , no having to drill holes in the throttle blades ,
That's a pretty decent looking carb design. I run with a guy that uses a toilet FI methanol system and it works well for him. But he's like a "unicorn" as far as fuel delivery at the track. The rest of us are on carbs either gas or methanol. Fitting a belt driven pump, all the bypass and pill stuff, lines and usually EGT equipment to monitor performance is way more PITA than carb(s). I have an Aeromotive pump on the dragster capable of supporting EFI. I've talked with a few about Holley EFI thinking it'd be good to have a methanol and gas program and I get a lot of "We've tried that, good luck with that". Which is not encouraging.
So I guess you could have $2000+ in an EFI or mechanical FI system, or just have a good $800 gas carb, a $1000 methanol carb and $5 in wrenches.
>Price(s)?
Web site says they are free - no cost. ;D ;D ;D ;D
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I haven’t had luck determining when you might supposedly be able to bolt one on. There’s a notify me link
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Edelbrock has so little product, so much is backordered, I'm not counting on the Edelbrock 4150, maybe fall 2022.
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I'd LOL that but I ordered an oil pan from Milodon via Jegs back in November 2020. Latest estimated ship date is now 01/31/2022.
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I ordered a Canton road race pan and pickup from Summit last tuesday and recieved it on last thursday.
Greg
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Yeah, all these backorders really suck, I need a new pair of slicks for my Fairmont. Before Covid, it was no problem, the local Speed Shop always had them in stock, but have not had any in almost a year. And since moving, I had a different shop check for me, he said Mickey Thompson doesn`t even have any on hand, so he won`t even place an order until they do. Could be worse I suppose, at least I don`t have a car or engine in pieces, being held in limbo by a lack of key parts. (although I certainly wish the availability of aluminum FE heads would get up to speed soon.)
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Ha, I got a shit pile of parts and no one to do the machine work. Had it all at one shop for 7 weeks and they never touched it. Picked it all up and took it to another shop and it's been there for 5 weeks now. About ready to go pick it all up again.
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Got to hold one in my hands today at PRI. Very nice looking carburetor. They are offering a 650, 750, 850, and 950. 650 cfm is downleg booster. All 750-950 will be annular. The first few pics are the 650, the last couple were an 850 I believe. Billet metering blocks with changeable emulsion bleeds and power valve channel restrictors. Notched floats with jet extentions, baffled bowls, and bowl drains. Has an air bypass valve/screw through the top of the venturi. TPS provision and throttle shafts are bronze bushed. Dual bolt pattern 4150/4500. 650's are expected to be released first in the first quarter of next year.
(https://i.postimg.cc/xjB59GxD/20211210-115901.jpg) (https://postimages.org/)
(https://i.postimg.cc/vH9zT1k1/20211210-115841.jpg) (https://postimages.org/)
(https://i.postimg.cc/Qd3qT8Zf/20211210-115933.jpg) (https://postimages.org/)
(https://i.postimg.cc/gjLxMZ83/20211210-115942.jpg) (https://postimages.org/)
(https://i.postimg.cc/vBN1LzgQ/20211210-115947.jpg) (https://postimages.org/)
(https://i.postimg.cc/yWqk28yt/20211210-120508.jpg) (https://postimages.org/)
(https://i.postimg.cc/DfS5VpcP/20211210-120505.jpg) (https://postimages.org/)
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Looking at that makes me think tuning a three-circuit Dominator would be pretty easy. I guess the additional bleed support something like an intermediate circuit.
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Yes, it has an intermediate circuit for additional tuning. Some other features I'm forgetting, but I don't think you will find anything else even close in price range for all the features. I think the 650 was starting somewhere between $700-750 and the rep said each size larger is an additional $50 or so. One thing I forgot to add is that is just a little taller than a Holley/ Quick Fuel.
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Thanks for the pics and information. It looks like a nice piece to me.
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What venturi to throttle sizes are the different cfm ratings? Is the largest throttle diameter 1.75?
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Edlebrock has had a pissing contest with Holley for decades ever since Holley started selling their own intake manifolds. So edlebrock started pushing revived Carters. Finely they decide to build an Autolite/Holley mixer.
Seems that the annular boosters should be on the smallest carb for good street manners. (there was a patent on annular boosters for years that kept Holley & Carter from selling them.)
Maybe now they will recast their 2x4 intakes so two Holley style carbs can be used.
Ron.
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That is a wild looking carb with great features. Look at all those air bleeds you might need! The 750 carb has 1.250 venturies....how do they flow that much?
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Maybe now they will recast their 2x4 intakes so two Holley style carbs can be used.
Ron.
Now wouldn't that be nice.
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Maybe now they will recast their 2x4 intakes so two Holley style carbs can be used.
Ron.
Now wouldn't that be nice.
These won't fit Ford med 2x4 either , bowls are way to deep and metering blocks at both ends , unless you can turn the carb sideways they are just physically too big
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I ordered a Canton road race pan and pickup from Summit last tuesday and recieved it on last thursday.
Greg
Would be nice - Milodon is the only mfg making the pan I need. The only Canton pan for my app requires a dry sump system.
I might have to get one of the new 650s and see how that works on the door car.
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That is a wild looking carb with great features. Look at all those air bleeds you might need! The 750 carb has 1.250 venturies....how do they flow that much?
Seeing all those removable bleeds would make me kinda nervous about them getting loose and dropping into a cylinder.
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If you drop one, you have to fight yourself to resist opening the throttle. The way I handle bleeds is once I have them lose, I put a toothpick firmly in the hole and finish unscrewing them and take them out. Same for putting them back in. I have yet to drop one.
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If you drop one, you have to fight yourself to resist opening the throttle. The way I handle bleeds is once I have them lose, I put a toothpick firmly in the hole and finish unscrewing them and take them out. Same for putting them back in. I have yet to drop one.
Damn good idea!!