|
How significant does acceleration affect fuel distribution and HP?
I was wondering about all this talk about dyno HP, but it's not a true enviroment of racing, and one of these multiple aspects involves G-force, and its affect on fuel distribution in the intake manifold. I was told that with NASCAR, when the cars are under high cornering G-force, there can/is substantial alterations in fuel distribution, which I would think affect HP.
With drag racing in a normally aspirated car, , with acceleration, there is obviously some G-force with acceleration. In a 11 sec 1/4 mile car, would there be significant fuel distribution changes that occur as opposed with running the engine on a dyno? Is there a difference between single and dual plane intakes? |
I'm not too sure that there is significant fuel distribution problems w/ an 11 sec. carbuerated car, but it does make a pretty good argument for port fuel injection if in fact there is significant power loss.
|
Quote:
|
I don't know about the atomized fuel after the carb, but I can tell you it can cause problems in the carb fuel bowl. Under large G forces the fuel can all run to one side of the bowl and uncover the jets, and it results in fuel starvation. Some carbs have baffles to prevent this - other solutions as well.
At the London car show last year there was a fellow that was having this problem. He would launch and the engine would stumble bad. Second gear was a slight stumble, and then it was ok. He ran over and over again. I wanted to suggest he try raising the float level, but never got the chance. |
| All times are GMT -7. The time now is 01:09 PM. |
Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
The representations expressed are the representations and opinions of the clubcobra.com forum members and do not necessarily reflect the opinions and viewpoints of the site owners, moderators, Shelby American, any other replica manufacturer, Ford Motor Company. This website has been planned and developed by clubcobra.com and its forum members and should not be construed as being endorsed by Ford Motor Company, or Shelby American or any other manufacturer unless expressly noted by that entity. "Cobra" and the Cobra logo are registered trademarks for Ford Motor Co., Inc. clubcobra.com forum members agree not to post any copyrighted material unless the copyrighted material is owned by you. Although we do not and cannot review the messages posted and are not responsible for the content of any of these messages, we reserve the right to delete any message for any reason whatsoever. You remain solely responsible for the content of your messages, and you agree to indemnify and hold us harmless with respect to any claim based upon transmission of your message(s). Thank you for visiting clubcobra.com. For full policy documentation refer to the following link: