Sniper FI on a Model A Ford? |
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Beach Bum
Member Joined: 21 Sep. 2019 Location: Seattle Status: Offline Points: 936 |
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Posted: 17 Nov. 2022 at 12:00am |
I am the proud owner of a ‘28 Model A Roadster Pickup as well as a ‘48 CJ2A. I have seen a thread on here as well as a YouTube videos about the installation of The Sniper on the L134. I am exploring the possibility of installing the Sniper on the Model A and am hoping to crossover some of the info from the Willys installation. I called Holley tech support and first they told me that it wouldn’t work because the Model A uses a magneto (that is incorrect, the Model A uses conventional breaker point distributor with coil) after that, I was told that the lowest horsepower the Sniper had been designed for 75. Now I know already that the stock L134 is 60 HP and the Sniper seems to work fine with that. Model A motor is 200 cubic inches and stock is 40 HP but it is strangled by a crazy small carburetor (which the Sniper would of course cure) and a compression ratio of 4.9:1 they really wake up with a “High Comression” head 6.5:1 or 7:1 being most common. I think that it is pretty safe to say that with the Sniper and High Compression head the Model A motor would be at least 60 HP. It has also been pointed out that the Model A piston rings at best are not too great and possibly oil in the exhaust might cause problems air/fuel sensor. For those of you who may not know, a Model A uses an updraft carburetor and tech support says the Sniper can only be used in a down draft application but this is not a problem because down draft manifolds are readily available (Webbers and Stromberg 97s being the most common carburetors used). Thoughts anybody?
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jeepsterjim
Member Joined: 13 July 2011 Location: lincoln, ca Status: Offline Points: 1283 |
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My Cousin Steven Serr may have a answer for you. He has been in the A & T arena since the late '60's He now has 2 style of high performance heads and other cool stuff for A's. Just say Jim Serr sent ya....and hope he won't hang up. LOL
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Jim
CJ-2A - 81299 |
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Lee MN
Member Joined: 13 Aug. 2008 Location: Harris, MN Status: Offline Points: 4950 |
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Not really sure why you would take one of the simplest designed cars to ever hit the American road and complicate it with electronics 😂 your money and your time, have fun with it!…
Lee |
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LEE
44 GPW-The Perfected Willys 49 2A “If you wait, you only get older” 67 M715 American Made Rolling History |
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Nick_
Member Sponsor Member Joined: 05 May 2014 Location: Indiana Status: Offline Points: 1132 |
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It'll work just fine. I've seen videos of a guy who installed one on a Farmall Cub (updraft), another guy on a small forklift, etc. Sniper will work pointed in either direction since it's a fuel Injector and not a carb bowl with float.
Some of the tech support guys are extremely knowledgeable and sometimes you'll talk to someone that's never installed one. Just luck of the draw like anything else. Keep us updated if you install one!
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Mark W.
Member Sponsor Member Joined: 09 Nov. 2014 Location: Silverton, OR Status: Offline Points: 7984 |
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I have read and followed a couple Holley Sniper single barrel EFI swaps onto Willys 134's and While drivability did show a little improvement no one has reported any real HP gains as compared to a well adjusted Carter. I may have missed something.
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Chug A Lug
1948 2A Body Customized 1949 3A W/S 1957 CJ5 Frame Modified Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962 |
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Bruce W
Member Joined: 29 July 2005 Location: Northeast Colorado Status: Online Points: 9651 |
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X2! 👏 BW
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It is NOT a Jeep Willys! It is a Willys jeep.
Happy Trails! Good-bye, Good Luck, and May the Good Lord Take a Likin' to You! We Have Miles to Jeep, Before We Sleep. |
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Beach Bum
Member Joined: 21 Sep. 2019 Location: Seattle Status: Offline Points: 936 |
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I am not doing this in search of more horsepower this is about driveability (the stock Zenith carburetor leaves a lot to be desired) That said, I do believe that the swap will produce some horsepower because the stock carburetor is just too small it only has a 1” throat for 200 cubic inches. It is very common to swap to a Stromberg 97 or even 2 Stromberg 81s. Webber carburetors are also very common. But in the end I think this is more about fun than anything else,
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Nick_
Member Sponsor Member Joined: 05 May 2014 Location: Indiana Status: Offline Points: 1132 |
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You did. Nobody is swapping to EFI for horsepower gains, only driveability gains. Driveability showing "a little improvement" is a vast understatement, it completely transforms the driving experience into one that's smooth, predictable, and in my 1 year experience completely reliable. A well adjusted carb will never outperform a solid EFI install. If it did, manufacturers like GM wouldn't have dumped carbs in favor of tbi 40 years ago. Not ranting - just preventing misinformation.
Edited by Nick_ - 17 Nov. 2022 at 10:59pm |
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Mark W.
Member Sponsor Member Joined: 09 Nov. 2014 Location: Silverton, OR Status: Offline Points: 7984 |
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SO are you reporting HP gains? As I mentioned the diveability improvements.
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Chug A Lug
1948 2A Body Customized 1949 3A W/S 1957 CJ5 Frame Modified Late 50's 134L 9.25"clutch T90A D18 (1.25") D44/30 flanged E-Locker D25 5.38 Since 1962 |
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Beach Bum
Member Joined: 21 Sep. 2019 Location: Seattle Status: Offline Points: 936 |
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NO, he is not! He is clarifying that there is little to be gained horsepower wise it’s about driveability. Nick has quite a few videos on YouTube under the name Turn n Burn. If you have not been watching them you should, there are at least 2 that are specifically about the Sniper install a testing.
I personally think that I will probably see some gains on the Model A because it is 200 CI not 134 and it has an it’s bitty carburetor. A common swap is one Stromberg 97 or two Stromberg 81s or a Webber (such as you are using) all 3 swaps produce some pretty good power gains, the potential is there.
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bikernks
Member Joined: 24 Nov. 2022 Location: Emporia Kansas Status: Offline Points: 16 |
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Long time reader, first time commenter, haha. I'm very interested in this thread, as my two projects right now are a 48 CJ2A and a Pietenpol Air Camper - a homebuilt 2-place airplane powered by a Model A. I would be very interested in seeing what kind of HP and torque improvements you get out of a Sniper on a Model A.
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Beach Bum
Member Joined: 21 Sep. 2019 Location: Seattle Status: Offline Points: 936 |
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I also have a 48 CJ2A and a 28 Model A and have been looking into installing a Sniper on the model a but it’s a significant investment and has not reached the top of the priority list quite yet but I’m doing the homework.
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