Tractor Talk Discussion Board |
Re: Re: Re: Re: Benefits of higher compression?.
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Ron on June 27, 2004 at 03:05:35 from (69.179.4.15):
In Reply to: Re: Re: Re: Benefits of higher compression?. posted by Neil on June 27, 2004 at 00:04:40:
The problem with theories is that they aren't real. For example, aeronautical engineers use certain "theoretical formulas" to determine flight characteristics. Problem is, according to them, bumblebees cannot possibly fly. Good thing the bumblebees don't know that! Remember that the next time you fly; these are the same guys that designed your airplane. Even back in the '60's during the muscle car era engineers got 10% torque improvement per point of CR increase. Like I said, it's a very general rule, subject to lots of factors. One factor that entered into this that 104 octane gas was available anywhere. As you moved up the CR scale, you got those excellent gains because the high octane prevented knock and therefore power loss. There were some muscle cars than ran CRs as high as 11.5:1. Another example: the perfect blower motor has a static CR of 8:1 or so. By adding 6-8 lbs. of boost, most supercharger manufacturers will claim a 30% boost in torque... and it just so happens that 6-8 lbs. of boost raises the combustion pressure to about the equivalent of an 11:1 compression ratio. Remember, engines don't "see" compression ratio. They see cylinder filling and therefore combustion pressure.
Follow Ups:
Home
| Forums
Today's Featured Article -
Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
Copyright © 1997-2025 Yesterday's Tractor Co. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|