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| Type 4 Unleashed |
 Dec 15 2007, 12:39 AM
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#1
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CREATIVE TYPE lV ENGINEERING  Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None  |
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Replies(1 - 7)
| sww914 |
Dec 15 2007, 03:55 AM
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#2
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Advanced Member Group: Members Posts: 2,439 Joined: 4-June 06 Member No.: 6,146 Region Association: None |
Not much cooling going on between those cylinders. Intake & exhaust on the top?
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| Jake Raby |
Dec 15 2007, 08:16 AM
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#3
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Actually thats the bottom..
Lycoming engines use updraft carbs under the engine. Those heads are designed for steady state running at altitude, so their characteristics don't include acceleration properties. |
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| Twystd1 |
Dec 15 2007, 04:04 PM
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#4
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You don't want to know... really..... Group: Members Posts: 2,514 Joined: 12-September 04 From: Newport Beach, California Member No.: 2,743 |
Jake,
What is there about these steel cylinders that keeps them from having "Acceleration properties".? What would prohibit their use in an automotive application? Clayton |
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| davep |
Dec 15 2007, 07:12 PM
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#5
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914 Historian Group: Benefactors Posts: 5,159 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
QUOTE(Twystd1 @ Dec 15 2007, 02:04 PM)  What is there about these steel cylinders that keeps them from having "Acceleration properties".? Jake was talking about the heads specifically. Port design and valve size would likely to be tailored to provide specific advantages at a particular cruising RPM. An engine designed for specific applications would not likely do well in another specific application. Just compare 1/4 mile engines with sprint car engines with endurance car engines. |
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| Krieger |
Dec 15 2007, 09:15 PM
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#6
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Advanced Member Group: Members Posts: 4,731 Joined: 24-May 04 From: Santa Rosa CA Member No.: 2,104 Region Association: None 
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Aircraft engines run at mostly continuous rpm. On a piston engine you usually set the throttle and lock it in a position. Yes, you do vary it from time to time, but nothing like working that gas in a car. I think the volume and airspeed of air into an aircraft engine are much higher.
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| Brando |
Dec 16 2007, 03:37 PM
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#7
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BUY MY SPARE KIDNEY!!! Group: Members Posts: 3,935 Joined: 29-August 04 From: Santa Ana, CA Member No.: 2,648 Region Association: Southern California |
volume may be high, density will be low. As altitude increases, air pressure decreases.
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| Type 4 Unleashed |
Dec 16 2007, 05:23 PM
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#8
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CREATIVE TYPE lV ENGINEERING Group: Retired Members Posts: 787 Joined: 20-June 04 From: Aliso Viejo, ca Member No.: 2,231 Region Association: None |
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