Re: 4150 carb max airflow
[Re: hemienvy]
#3273031
11/28/24 07:52 PM
11/28/24 07:52 PM
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Joined: Jan 2012
Posts: 2,786 Stuttgart, Arkansas
rickseeman
master
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master
Joined: Jan 2012
Posts: 2,786
Stuttgart, Arkansas
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Holley sells a 4150 that they call 1000 cfm. And maybe a few people claim a little higher. I wouldn't know how much they really flow.
2011 Drag Pak Challenger
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Re: 4150 carb max airflow
[Re: hemienvy]
#3273074
11/29/24 10:09 AM
11/29/24 10:09 AM
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Joined: Jun 2014
Posts: 3,481 Md.
carnut68
master
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master
Joined: Jun 2014
Posts: 3,481
Md.
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Check out ATM Carburetors. Very reasonably priced.
America First!
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Re: 4150 carb max airflow
[Re: hemienvy]
#3273075
11/29/24 10:16 AM
11/29/24 10:16 AM
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Joined: Dec 2021
Posts: 1,421 Loudoun County, VA
Brad_Haak
pro stock
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pro stock
Joined: Dec 2021
Posts: 1,421
Loudoun County, VA
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Advertised carb CFM ratings are confusing, if not outright misleading
Can you get 1000+ CFM rated at 1.5" Hg from a conventional 4150? - dry flow: yes - wet flow: not that I've seen, although I suppose somebody may have
A "1050" 4150 annular 4150 w/ 1.59 venturi & 1.75" throttle bore isn't going to flow the same as a "1050" 4500 annular w/ 1.72 venturi & 2.00" throttle bore
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: 4150 carb max airflow
[Re: hemienvy]
#3273137
11/29/24 04:14 PM
11/29/24 04:14 PM
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Joined: Feb 2017
Posts: 586 Texas
RustyM
mopar
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mopar
Joined: Feb 2017
Posts: 586
Texas
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Yes, its pretty easy to get well north of 1000 cfm from a 4150 baseplate. I use a twin Blade style from Mike Laws Performance via Tony Morris Carbs and Parr Performance . We are flowing a over 1250 cfm on a race 540 and, yes, we had to work pretty hard to get what we needed for this engine . We are carb restricted to 4150 baseplate and, we are still leaving power on the table but, at just shy of 900 hp , we did pretty well at wringing the neck off a 4150 baseplate carb. Yes, we are still pulling too much vacuum at wot so, we could truly make use of the 4500 base. That said and concurring with others here, yes, you can easily get a good, solid, very tunable 1000+ cfm from a 4150 base. BLP has a couple options along with those listed by others here.
Dom ( Thumper Carbs ) builds several 1000ish 4150 offerings as well as the twinblade if one needs the higher airflows on the 4150 baseplate/frame. We are in year 4 with the twins, this one our second iteration with the newer blocks and mainbody. Extremely tunable, deadly consistent and literally the best "leaving" carbs i have ever worked with- i highly recommend them for racing. I have not worked with them on the street much but, would not anticipate any issues. One of the Tunability areas we really like is the "upper-jet" system with drop in boosters , much like a dominator. Instead of boosters being pressed in, they drop in and attach with a jet, so we can change flows at the booster and easily try different boosters/skirts etc. Saves a ton of tuning time when on the dyno and when fine tuning at track.
See : Thumper Carbs Tony Morris Carbs Parr Performance Carbs Mike Laws Performance or, little ole me if interested. Blessings all.
Last edited by RustyM; 11/29/24 04:23 PM.
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Re: 4150 carb max airflow
[Re: AndyF]
#3273403
12/01/24 04:43 PM
12/01/24 04:43 PM
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Joined: Dec 2004
Posts: 10,655 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,655
Rittman Ohio
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I had 2 Pro-Form 1050 bodies, one downleg and the other is a newer body with annular boosters. The annular carb was better everywhere from idle to WOT. The downleg was ok but part throttle was very hard to get tuned right. The annular was fast and smooth right out of the box. Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: 4150 carb max airflow
[Re: AndyF]
#3273526
12/02/24 07:32 AM
12/02/24 07:32 AM
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Joined: Jan 2003
Posts: 8,252 Plymouth, MI
Blusmbl
master
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master
Joined: Jan 2003
Posts: 8,252
Plymouth, MI
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Are the proform 1050 annular main bodies a worthwhile upgrade to an existing conventional 850 DP in terms of cfm? I've got similar flow concerns- for my 540 the 850 DP isn't enough, but I also wanted to hold off on buying another complete carburetor. The jump to a dominator (or a dominator-sied EFI system) isn't in the budget for the next year or so.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118
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Re: 4150 carb max airflow
[Re: Blusmbl]
#3273538
12/02/24 08:37 AM
12/02/24 08:37 AM
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Joined: Dec 2004
Posts: 10,655 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,655
Rittman Ohio
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I think you will love the way the annular performs down low. You don't usually "feel" like you get your money's worth when buying simple to install parts but you will be surprised with this upgrade. Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: 4150 carb max airflow
[Re: RustyM]
#3273551
12/02/24 09:32 AM
12/02/24 09:32 AM
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Joined: Apr 2004
Posts: 347 Northport, al.
tvt59
enthusiast
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enthusiast
Joined: Apr 2004
Posts: 347
Northport, al.
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Yes sir , it is possible. I have two APD billet 4150 style carbs 1040 CFM. One alcohol and one gas. I love them. Very consistent and the tune out of the box is great.
Nothing worth anything comes easy. It is always harder to do the right thing.
My Grandfather
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Re: 4150 carb max airflow
[Re: Blusmbl]
#3273573
12/02/24 11:19 AM
12/02/24 11:19 AM
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Joined: Dec 2021
Posts: 1,421 Loudoun County, VA
Brad_Haak
pro stock
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pro stock
Joined: Dec 2021
Posts: 1,421
Loudoun County, VA
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Are the proform 1050 annular main bodies a worthwhile upgrade to an existing conventional 850 DP in terms of cfm? I've got similar flow concerns- for my 540 the 850 DP isn't enough, but I also wanted to hold off on buying another complete carburetor. The jump to a dominator (or a dominator-sied EFI system) isn't in the budget for the next year or so. Flow improvements? Minor; probably < 20 CFM wet; I've come to think dry flow comparisons aren't valid when different booster types (down-leg vs annular) are involved Atomization and booster response improvements? Yes And... can you find one? I've been searching for a Proform 67218 main body and don't see one anywhere. I suspect they're being made in limited quantities these days.
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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