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Suck, Squeeze, Bang, Blow

Old 10-25-2007, 06:45 PM
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Default Suck, Squeeze, Bang, Blow

I received this via e-mail - thought it was pretty neat to watch.

http://gizmodo.com/gadgets/fourstrok...ine-309138.php
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Old 10-25-2007, 08:14 PM
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Nice
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Old 10-25-2007, 09:45 PM
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Default RE: Suck, Squeeze, Bang, Blow

Whoops - thought this had something to do with my ex-wife???
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Old 10-26-2007, 03:57 AM
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Very interesting!

Well that shows me why engines aren't getting good gas mileage!

IMO:
- the timing is off......piston doesn't look like it is at TDC when igition occurs
- the induction system is not working as good as I would think it should work......there should be an endless supply of vapor/air mixture flowing into the CC
- the cam is wrong for that engine.......you just have to know how cam shafts are supposed to work and why to know what I'm talking about there
- it all most looks like the valve springs are not closing the intake valve and holding it shut completely
- the design of the CC is not efficient.......to me it looks like a very uneven burn

This little clip shows me why engines do not get great gas mileage......the flash point and burn rate of gas is terrible! The exhaust valve should NOT be expelling raw energy the way it is on every day production vehicles.
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Old 10-26-2007, 06:21 AM
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I read an article this week about a guy who was estimating he could get between 300-400 MPG on his Saturn. The setup was very crude but he had added some sort of plastic fuel resivoir where the fuel and air would be mixed prior to entering the engine. The idea was that this would only draw the vapor rather than raw fuel in to the engine. He had a button which he would hit as needed to add more fuel to the chamber via an electric pump, and would add fuel as needed. His testing method was something like counting the number of times he hit the button (15) within x amount of miles and then diong the same without the engine running to measure how much fuel 15 hits of the button added to the resivoir. He then multiplied the amounts to come up with an estimated MPG. Who knows how legit the whole thing was but an interesteing idea. Doesn't surprise me the big three haven't thought about it but if it's legit, you would think Toyota or Honda would already be on it.
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Old 10-26-2007, 06:34 AM
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Cousin Eddie - 10/26/2007 6:21 AM

I read an article this week about a guy who was estimating he could get between 300-400 MPG on his Saturn. The setup was very crude but he had added some sort of plastic fuel resivoir where the fuel and air would be mixed prior to entering the engine. The idea was that this would only draw the vapor rather than raw fuel in to the engine. He had a button which he would hit as needed to add more fuel to the chamber via an electric pump, and would add fuel as needed. His testing method was something like counting the number of times he hit the button (15) within x amount of miles and then diong the same without the engine running to measure how much fuel 15 hits of the button added to the resivoir. He then multiplied the amounts to come up with an estimated MPG. Who knows how legit the whole thing was but an interesteing idea. Doesn't surprise me the big three haven't thought about it but if it's legit, you would think Toyota or Honda would already be on it.
We have gotta come up with something to span the time between internal combustion and what ever is next. Mercedes has a new technology, diesel combustion for gasoline. http://www.businesscar.co.uk/story.asp?storycode=1757 - halfway down on that link.
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Old 10-26-2007, 06:37 AM
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Default Re: Suck, Squeeze, Bang, Blow

I was impressed with them having a camera viewing the entire combustion process.

Sure things can always be improved and tweaked, but that clip looked really cool too me. Didn't look like an inefficent or wasteful running engine.

My 2007 truck has a Hemi engine, 2 plugs per cylinder, 4 valves per cylinder and not too good gas mileage.
Sure has plenty of power, though.

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Old 10-26-2007, 11:15 AM
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Default RE: Suck, Squeeze, Bang, Blow

Talk about a misleading Subject Title
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Old 10-27-2007, 09:01 AM
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If'n you watch closely you'll see that most of the exhaust stroke is cut out of the flick.
Also the flick recycles the same sequence, probably why the blow stroke is missing due editing.
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Old 10-27-2007, 08:50 PM
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Fearless,

2 Valves per cylinder not four.

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Old 10-27-2007, 09:09 PM
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Thought you were going to show jet engines on here. Thats the way we describe jet engines in layman's terms.
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Old 10-28-2007, 05:06 PM
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Default Re: Suck, Squeeze, Bang, Blow

Garett - 10/26/2007 3:57 AM Very interesting! Well that shows me why engines aren't getting good gas mileage! IMO: - the timing is off......piston doesn't look like it is at TDC when igition occurs
Its called spark advance. At higher engine speeds the spark is advanced to a few degrees before TDC in order that the biggest force of the burn will happen right after TDC.
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Old 10-28-2007, 05:15 PM
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Suck, Squeeze, Bang, Blow?

Isn't that a bar in S. Myrtle?
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Old 10-28-2007, 06:54 PM
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Cat-a-holic - 10/28/2007 5:06 PM



Garett - 10/26/2007 3:57 AM Very interesting! Well that shows me why engines aren't getting good gas mileage! IMO: - the timing is off......piston doesn't look like it is at TDC when igition occurs
Its called spark advance. At higher engine speeds the spark is advanced to a few degrees before TDC in order that the biggest force of the burn will happen right after TDC.
correct - what I was thinking - Oh yeah, and cars and trucks aren't getting good mileage because Exxon and the others won't allow it. 1st car I had, a 1979 Camaro with a 130hp 305 V-8 with 2 barrel carb got 20 on the highway. All of our improvements in technology since then (27 years) and my vehicles get :
Trailblazer - I-6 -- 17mpg
Dakota 4x4 - V-8 -- 15mpg
Chevy Van - V-8 -- 14mpg
Honda rice burner I-4 -- over 30 (but it doesn't weigh anything)

CYNICAL - you bet
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Old 10-28-2007, 08:00 PM
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10-4 Stinger, your correct.
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Old 10-28-2007, 08:41 PM
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Default Re: Suck, Squeeze, Bang, Blow

I get 27 MPG out of my V6 Sedan, I got 30 MPG out of my last Corvette, my Hemi on the highway gets in the 18-19 Range (not great... but better than it did when I bought it). A 79 Camaro with 130HP? Wow that had to be a monotanous ride! 0-60 next week!

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