The Frame!
Added 2022-01-27 04:20:39 +0000 UTCI put a frame together so that I can put everything else together.
Comments
I agree with Mike above. I really enjoy the narrator Matt style in your videos, but the occasional conversational approach can be used for good effect too.
Matt Brown
2022-02-09 14:26:00 +0000 UTCI watched this video on my living room TV and the audio wasnβt bad, but I guess it might make a difference if watching on a mobile device. PS If you need volunteer fat guy, more than happy to help
Jose
2022-02-03 04:34:02 +0000 UTCYeah for a landspeed car drag increasing at the square of speed is your main enemy I'd imagine. But in more normal sub 200 mph speeds I do wonder what the effect would be. 1) Mock up duct into exhaust exit on car to measure air flow 2) Mock up exhaust system in shop sealed off at the exhaust manifold flange but open at the exit, put equivalent airflow through system to see if you get a pressure drop. 3) Get something like a VQ engine or LS engine with those dual intake manifolds where it keeps the different sides of the V separate in the intake manifolds, has dual throttle bodies etc. 4) Drive car with engine running at steady state at 60 mph, open valve into exhaust track on one side of the V in a true dual exhaust system with no crossover to see if you get an affect. The previous measurements would hopefully let you know how much extra fuel you might need to add to keep it from leaning out. Then again with enough extra fuel capacity you might be able to skip directly to step 4 lol. Know anyone with a 370z or someone who has a dual intake/throttlebody LS setup? hehe.
Wilford Brimley
2022-01-28 18:27:21 +0000 UTCI'll have the exhaust dumping out the back, so it will have a low pressure sucking effect. I'd be weary of putting naca ducts in because it would disturb the airflow, so while I might get power, the aerodynamic hit might not make up for it. though the benefit might be more noticeable on a two-stroke that needs as much scavenging as possible. In my experience with race car, less is more. But it might be worth looking into with some aerodynamic simulations in the future.
Matt Brown
2022-01-28 18:19:42 +0000 UTCNarrator Matt and In Camera Matt are different people . I like them both as long as the speaking volume is normalized between the sources.
Wilford Brimley
2022-01-28 16:42:58 +0000 UTCMatt, you touched on something I've had a bouncing around in my head for quite a while involving the engine being an air pump etc. Thought experiment. You know how if air goes across the top of a straw it lowers the air pressure within the straw, raising the fluid pressure? Ok, lets say you had some naca ducts or air scoops on a car that fed air into the exhaust system in the same direction of exhaust flow. In theory this should be like blowing air across the top of the straw, so again in theory it would lower the pressure in the exhaust system. I suppose you could mock up such a scoop, feed it into the end of an exhaust pipe not hooked up to a header with a sensor in their to measure air flow at say 60 mph. Then in a shop feed in air from an external source until you get the same flow, but this time the exhaust pipe is hooked up to the manifold and see if you see a pressure drop. Maybe a MAP sensor could do it? I'd be curious if a camshaft with some overlap between intake and exhaust, setup for scavenging, would see any benefit from this. Would the cylinders experience an enhanced "sucking the exhaust out the cylinder" effect from such a setup? The next thing that could be done would be once you know if you get any sort of pressure drop in the exhaust and if you see any sort of pressure drop in the intake, would be to drive a car steady state on a long flat and then use one of those exhaust cut out valves to open air flow to the scoop, drop pressure in exhaust, and see if the engine can take in additional fuel or make any additional power at the same load/engine speed while car is going steady state. Would the engine see any benefit in intake charge velocity, etc. Then if there's a high drag area on the back of the car, like a low pressure area that sucking on the car as it goes through the air.. can you dump your exhaust, helped along by the scoops in the high pressure area, into that low pressure drag area to decrease drag? Would be neat to see this tested especially with the help of a dyno cell.
Wilford Brimley
2022-01-28 16:41:46 +0000 UTCThanks for the note. The audio bothered me too. If I do it again, I'll put on a lapel mic so it's all consistent. The iPhone is great at the video, but not so much at audio.
Matt Brown
2022-01-27 21:02:02 +0000 UTCI don't mind it where there is some specific thing you need to highlight in the video, but the audio quality varies a lot as you wander around, so I prefer the Matt-sitting-in-his-office dialog better.
Mike Lackey
2022-01-27 19:40:32 +0000 UTCGotcha. Thanks for the info!
Steven Tom
2022-01-27 19:34:49 +0000 UTCHit return too fast. His class requires four wheels. He *could* do two wheels inline up front (some others streamliners do this) but chose to go with the more traditional side-by-side approach.
Mike Lackey
2022-01-27 19:32:37 +0000 UTCNo.
Mike Lackey
2022-01-27 19:30:40 +0000 UTCyou obviously are following the rule book very closely, just make sure to stitch weld the gussets to the surrounding tubing.
Phil Landry
2022-01-27 15:15:25 +0000 UTCI think it was a great video. I like the extra details in this video.
Loren
2022-01-27 14:02:53 +0000 UTCWould using just a single wheel up front work? Turning it into a trike should lower the frontal area, right? probably make it a sketchy af to drive at those speeds, though.
Steven Tom
2022-01-27 13:00:39 +0000 UTCFrickin lasers.
Kirk Lane
2022-01-27 05:07:00 +0000 UTCI love these vids! I think this was a great style for you, engaging, good pace, all that
Kasio1
2022-01-27 05:05:28 +0000 UTCI enjoyed hearing your thoughts as you were working on it, but Absolutely LOVE the idea of a second engine π€£.
F.N. Photography
2022-01-27 04:48:44 +0000 UTCI did a little more walking around and talking with the camera than I usually do. Less scripted, more conversational. Iβm not sure I like this style better, but Iβm interested in everyoneβs honest feedback.
Matt Brown
2022-01-27 04:32:53 +0000 UTC
