hans
Full Member
Posts: 166
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Post by hans on Aug 23, 2011 4:02:57 GMT -5
Hi Group,
is an AeroInjector/AeroCarb any good when operated with ram air?
cheers
Hans
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Post by schrome on Aug 23, 2011 11:05:53 GMT -5
Hi Hans,
The Aerocarb manual isn't in front of me at the moment but I'm pretty sure it recommends against ram air. However, I have no direct experience with it.
Ed
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hans
Full Member
Posts: 166
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Post by hans on Aug 23, 2011 16:24:25 GMT -5
Hi Hans, The Aerocarb manual isn't in front of me at the moment but I'm pretty sure it recommends against ram air. However, I have no direct experience with it. Ed Hi Ed, You're right. Your hint caused me to re-read the manual (Rev. A 04/10). On page 15 it reads: "... it is not designed for use with ram air. Ram air will cause the mixture to become lean as speed increases.". So that is one avenue I can forget about - at least as long as I keep this carb  cheers Hans |
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Post by heisan on Aug 24, 2011 9:12:09 GMT -5
It is strange how the manufacturers differ. For all practical purposes, the Revflow and Aero Injector are the same carb. Revmaster says ram air is fine, and carb ice can be a problem. Aero Conversions say ram air is a no-no, and carb ice is impossible...
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pttim
New Member
Posts: 30
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Post by pttim on Aug 25, 2011 5:47:22 GMT -5
I am going to use the Aerocarb, with filtered air and I have provisioned for carb heat, just because I believe anything is possible under the right conditions.
Tim
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Post by schrome on Aug 25, 2011 11:18:50 GMT -5
Hi Tim,
I suspect - but am not yet 100% sure - my Aerocarb has been iced during ground runs with the cowling removed, but never in flight. In the air it draws pre-warmed cowling air. It's never a bad idea to be ready with the plumbing for heat. One of the smaller projects on my list is to stick a thermocouple in the manifold and see what's going on.
Ed
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pttim
New Member
Posts: 30
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Post by pttim on Aug 25, 2011 12:03:29 GMT -5
Hey Ed,
Gaston has one of those on his Sonerai. Its like having gas on standby for your Generator when the hurrican hits your prepared. ;D
You got your 40 flown off yet?
Tim
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Post by schrome on Aug 25, 2011 19:34:09 GMT -5
Not yet, eight to go. Haven't flown it yet this season, though - opened a can of worms last fall and they ALL crawled out!
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hans
Full Member
Posts: 166
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Post by hans on Aug 29, 2011 6:05:32 GMT -5
It is strange how the manufacturers differ. For all practical purposes, the Revflow and Aero Injector are the same carb. Revmaster says ram air is fine, and carb ice can be a problem. Aero Conversions say ram air is a no-no, and carb ice is impossible... This has me baffled too. I wonder whether anybody around here is using ram air with the AeroInjector despite what the manual recommends... |
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Post by dayflyer47 on Aug 29, 2011 19:23:54 GMT -5
hello everyonje,
what do you know about solex carbs that come out on a vw 1600cc. I know a guy who has one and he is having problems getting his rpms up past 3000. I don't know anything about this one barrel job. It seems to little to perform properly but that is just my observation. What say ye???
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Post by Schmleff on Aug 30, 2011 20:37:46 GMT -5
It is strange how the manufacturers differ. For all practical purposes, the Revflow and Aero Injector are the same carb. Revmaster says ram air is fine, and carb ice can be a problem. Aero Conversions say ram air is a no-no, and carb ice is impossible... This has me baffled too. I wonder whether anybody around here is using ram air with the AeroInjector despite what the manual recommends... I would have if I had not changed to the Revflow. I have the vent facing into the wind and would have tested the same with the Aero carb. That being said, my mixture is rich on the ground. I lean it during the run up before taking off. After I get in the air, the mixture changes a bit. Not enough to worry about, but I can see the effect of the ram air as speed picks up. |
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hans
Full Member
Posts: 166
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Post by hans on Aug 31, 2011 9:07:21 GMT -5
Thanks Jeff,
that would be consistent with the information in the AeroInjector manual. B.t.w. what made you switch over to the Revflow?
Hans
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dlynd
New Member
Posts: 11
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Post by dlynd on Sept 1, 2011 8:52:33 GMT -5
I'm not sure why ram air would be a problem as long as you adjust the mixture accordingly. How is this different than compensating for altitude with mixture? Or are they saying it would lean beyond your ability to compensate with mixture?
Derrick
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Post by Schmleff on Sept 1, 2011 9:59:27 GMT -5
If the ram air pressure exceeds the fuel pressure, you are going to get no fuel even with the mixture excessively rich. That is why you should face your vent into the wind, so that the fuel pressure increases along with the ram pressure.
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