Comments on: Kalitta insight http://www.ret-monitor.com/articles/89/kalitta-insight/ Specific mission-critical info for professionals Thu, 09 Feb 2012 15:16:14 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: simon http://www.ret-monitor.com/articles/89/kalitta-insight/comment-page-1/#comment-48 simon Wed, 24 Jun 2009 08:58:03 +0000 http://www.ret-monitor.com/articles/?p=89#comment-48 Good question Mike, Cylinder temps are measured with EGT Pyrometers that are installed in the exhaust headers on Top Fuel Dragsters and Funny Cars. Each cylinder idles on a certain amount of fuel. Usually the front cylinders require more fuel volume than the rear cylinders because of the way the superchargers displace air in the manifold. One example is that our number one cylinder idles on a .073 jet and our number eight cylinder idles on a .067 jet. At idle right before the driver hits the gas we usually see about an average of 400 to 475 degree exhaust temps, on the run the temps will rise to about 1800 to 1900 degrees. Fuel volume is the only tool that we have that can control cylinder temps so it is important that you have a good working fuel system on a Top Fuel engine. I hope this answers your question Mike. Sincerely, Jim "O" Oberhofer Kalitta Motorsports Good question Mike,
Cylinder temps are measured with EGT Pyrometers that are installed in the exhaust headers on Top Fuel Dragsters and Funny Cars. Each cylinder idles on a certain amount of fuel. Usually the front cylinders require more fuel volume than the rear cylinders because of the way the superchargers displace air in the manifold. One example is that our number one cylinder idles on a .073 jet and our number eight cylinder idles on a .067 jet. At idle right before the driver hits the gas we usually see about an average of 400 to 475 degree exhaust temps, on the run the temps will rise to about 1800 to 1900 degrees. Fuel volume is the only tool that we have that can control cylinder temps so it is important that you have a good working fuel system on a Top Fuel engine. I hope this answers your question Mike.
Sincerely,
Jim “O” Oberhofer
Kalitta Motorsports

]]> By: Mike Furtaw http://www.ret-monitor.com/articles/89/kalitta-insight/comment-page-1/#comment-43 Mike Furtaw Fri, 19 Jun 2009 17:31:07 +0000 http://www.ret-monitor.com/articles/?p=89#comment-43 How does the cylinder temps affect the testing? Is it just a max temp or does the fuel mixture have to be 'measured' to within a tolerence? How does the cylinder temps affect the testing?

Is it just a max temp or does the fuel mixture have to be ‘measured’ to within a tolerence?

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