Smoke with head flow testing
#3039852
05/05/22 12:26 AM
05/05/22 12:26 AM
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Minnesota
Hemi_Joel
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Does anyone use smoke with cylinder head flow testing to observe the flow patterns? If so what do you use to generate the smoke? Thanks, Joel
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Smoke with head flow testing
[Re: lewtot184]
#3039890
05/05/22 09:14 AM
05/05/22 09:14 AM
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Tulsa OK
Bad340fish
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there used to be a simple smoke stick that could be introduced in the air flow. we used to use them at work. i've always thought a smoke test would make sense because it will give a visual on air flow but not sure if anybody does it. But the smoke may not act the same as the atomized fuel, so its hard to tell if that is really what is going to go on.
68 Barracuda Formula S 340
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Re: Smoke with head flow testing
[Re: Alchemi]
#3039905
05/05/22 10:17 AM
05/05/22 10:17 AM
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Hemi_Joel
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How about a fog machine? vaporized water is much closer to fuel than smoke
They are much cheaper than they used to be That's a great idea. I actually have a fog machine that I bought for fogging the inside of a building with moldicide when I was doing a mold abatement. I'm going to try it!
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Smoke with head flow testing
[Re: Hemi_Joel]
#3040026
05/05/22 05:53 PM
05/05/22 05:53 PM
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Melbourne , Australia
LA360
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I imagine it's very messy, but I have read in various discussions of guys like Darin Morgan, Chad Spier and Curtis Boggs spraying dykem in the air near the head whilst they have the flow bench running. The dykem sticks to the port and chamber as the air goes through it.
Alan Jones
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Re: Smoke with head flow testing
[Re: LA360]
#3040030
05/05/22 06:13 PM
05/05/22 06:13 PM
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Hemi_Joel
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I imagine it's very messy, but I have read in various discussions of guys like Darin Morgan, Chad Spier and Curtis Boggs spraying dykem in the air near the head whilst they have the flow bench running. The dykem sticks to the port and chamber as the air goes through it. That does sound messy! But I could see where it would help identify dead areas.
[img]http://i.imgur.com/boeexFms.jpg[/img]31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"
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Re: Smoke with head flow testing
[Re: LA360]
#3040062
05/05/22 07:20 PM
05/05/22 07:20 PM
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Atlanta, GA
mgoblue9798
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I imagine it's very messy, but I have read in various discussions of guys like Darin Morgan, Chad Spier and Curtis Boggs spraying dykem in the air near the head whilst they have the flow bench running. The dykem sticks to the port and chamber as the air goes through it. I wonder if something could be added to the water in the fog machine to show similar results? Maybe food coloring?
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Re: Smoke with head flow testing
[Re: Hemi_Joel]
#3040237
05/06/22 09:23 AM
05/06/22 09:23 AM
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Tulsa OK
Bad340fish
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I imagine it's very messy, but I have read in various discussions of guys like Darin Morgan, Chad Spier and Curtis Boggs spraying dykem in the air near the head whilst they have the flow bench running. The dykem sticks to the port and chamber as the air goes through it. That does sound messy! But I could see where it would help identify dead areas. Maybe my Dad will chime in here with who did the work. My W2 heads were "wet flowed" by someone many years ago. If I remember right he was unhappy with the results and didn't charge my dad for the port work that had been done. Fast forward to 2015 we sent those heads and block etc to shady dell to be machined and all Ryan did was touch the heads up a little and they flow like 318@.700 or something near that. The motor is 7 years old now and makes around 600HP with 10:1 compression on 91 octane so they could never have been all that bad? So as wet flow this guy deemed them junk, Ryan deemed them just fine through standard methods, and they perform well. Sounds like drag racing to me  
68 Barracuda Formula S 340
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Re: Smoke with head flow testing
[Re: Bad340fish]
#3040543
05/07/22 12:11 PM
05/07/22 12:11 PM
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Tulsa, Oklahoma
340Cuda
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I imagine it's very messy, but I have read in various discussions of guys like Darin Morgan, Chad Spier and Curtis Boggs spraying dykem in the air near the head whilst they have the flow bench running. The dykem sticks to the port and chamber as the air goes through it. That does sound messy! But I could see where it would help identify dead areas. Maybe my Dad will chime in here with who did the work. My W2 heads were "wet flowed" by someone many years ago. If I remember right he was unhappy with the results and didn't charge my dad for the port work that had been done. Fast forward to 2015 we sent those heads and block etc to shady dell to be machined and all Ryan did was touch the heads up a little and they flow like 318@.700 or something near that. The motor is 7 years old now and makes around 600HP with 10:1 compression on 91 octane so they could never have been all that bad? So as wet flow this guy deemed them junk, Ryan deemed them just fine through standard methods, and they perform well. Sounds like drag racing to me That was Vance Cummins. He raced a Dart in IHRA's Top Stock at the time in Rod Shop livery. Vance has/had a Wet Flow bench. He was unhappy that he could not keep the heads from getting turbulent at higher RPMs. Like Clark said Ryan either was not concerned or fixed them.
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Re: Smoke with head flow testing
[Re: Hemi_Joel]
#3040604
05/07/22 04:04 PM
05/07/22 04:04 PM
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Loudoun County, VA
Brad_Haak
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If not mentioned already, Mike Chapman used smoke testing before wet-flow testing became more accessible.
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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