One of the things I have noticed on my previous @EdelbrockUSA VRS-4150 carbs is folks who think it’s just another Holley knock off Copy
Today we take a Deep Dive into the internals of both a Holley HP built by Allstate Carbs in NY (631) 234-8327 that will be used in testing on CASPER vs the Edelbrock VRS-4150
While they may look similar they are completely different!
#edelbrock #holley #dragrace #automobile
Thanks for watching
Andy
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Great Video, Team VRS of the Tunnel Ram Mafia… I believe I may try out the VRS on a small cubic inch motor real soon.
I’ll still say a copy. If the 4150 Holley would’ve never existed, this “Edelbrock” wouldn’t be here. Edelbrock (if that’s really who they are anymore) needs to thank Holley for the 4150, otherwise there wouldn’t be anything to “improve”.
Got Queston? just built a sbc 355 it's on a run stand just got cam broke in with a performer intake, I just installed a Edelbrock TTR1 on some old school stock double hump heads, comp 492 lift cam, 30 over, Previous owner of ttr1 had a pair of Holley 1850 vacuum secondaries on it. I'm in process of rebuilding them at moment. My question is I just mounted two summit 600 knock off holley's on it? This combo work well? or should I run the 1850's? Or change to Edelbrock's carbs? And do you have an idea (ball park) of what horsepower engine should make with this setup? Thanks for your videos or be lost without info you share!
The tunability of the Edelbrock reminds me of my little 4160 that I had on my 429 back in the 80s. I bought a Weber Power Plate and moved the primary metering block to the secondaries, making it a 4150. I spent the next few months collecting Weber jets, air bleeds, and emulsion tubes. I had no air/fuel monitor and was no expert tuner, but the drivability and throttle response were drastically improved. It was also nice to be able to change jets without removing the fuel bowls. It was a lot of fun.
I will disagree, a 1957 Holley has no real similarity with a HP/XP. 4160 goes back that far but from my recollection 4150 is a mid/ late 60s piece.
The Edelbrock is annular,, something Holley did and dropped. I found an annular was a far better carb, far more driveable. This on a road race car.
I specced out an XP, no other Holley compares. The VRS is a better thing all round than anything except an XP. Which is here in Oz far more expensive.
The one piece design is better, annular is [in my case] better, the metering is better than my HP. In short a better piece.
Mounting all of these carbs sideways however is WRONG. They are designed for fore and aft fitment
But they are only 850 CFM
Thanks Andy. Finally a real improvement over the Holley. You guys are going to make war in the woods even more exciting.
Great video Andy. I once had a screw fall out of a holly, it caused two cylinders to scar and lost 2 piston to be replaced along with 4 valves and seats. I love the intermediate circuit definitely holly carbs need this. I got a 511 in FE that needs a carb. I will be trying one out, thanks
I like that they have released the VRS 850 and 650 carbs
Great information, and comparison, thanks for sharing, all the best to you and your loved ones
The venturas (spelled that wrong I’m sure ) are not symmetrical like the Holley they are more “cone” shaped. I really believe that help the air flow across the boosters.
And the small victory we no long have to drill the little hole in the blades to compensate for a big cam to get it to idle.
As soon as you bolt that carburetor on you know it’s a different animal
Do you think the VRS would be a decent carb for economy? Like if I wanted to splurge on a good carb for a hot street car, is there enough tunability in it for economy/part throttle purposes?
Very nice review. But this Edelbrock carb is too $$$$ for street car for my use. Yes, understand quality cost money. But because of cost I gotta stay with my Quick Fuels. Even QF costs too much at todays prices. Glad I got them (2) a few years ago. Honestly pleased with them but a lot of time was spent modifying passages & tuning them. Basically QF everything is too rich. I’ve found area of air/fuel ratios that seem to enhance performance for street. For street car even the old Holley from the 60‘s is tunable with some passages/restrictions/jets modifications. Thanks for video.
That's great info!
Oh , much like when they took the Carter AFB and tried to make it better… Blegh. Now they took the plastic metering block idea from the thermoquad !!! LoL some of us older guys know how that went…
Finally… lets see a tuning video step by step
Side by side they are identical but no they didn't copy anything…. right
I wish I'd ponied up and got one awhile back when I went from avs2 to a Holley street hp only because I've always ran Edelbrock but I got that Holley factory refurbished for half the price
Holley based for sure, with notable design improvements. I like it.
I bought the 750 vrs and I’m about to bolt it on in another week or two when I get my heads out of the machine shop. I’ve been waiting to see a video on this subject after a year of looking at this carb. I pulled the trigger and bought it anyway.
I have been waiting for a good explanation of the VRS…GREAT JOB.
Would on of the VRS carbs be a good fit for a 350/383 in 350 to 400 hp rangs, or is that too mild for this carb?
You know DV, makes good videos, plays with gasoline, living the life!
I think Edelbrock missed a bit of an opportunity here. In the main metering circuits it might've been a good idea to the put user adjustable 4 corner restriction screws (similar to idle mixture screws). The user then doesn't need to disassemble the float bowls every single time a main jet change is called for. Would be a great feature that.