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Steven, Thank you for taking the time to post some input. You are 100% right, every component in the system that could generate any pressure drop will also create some heat and also means some loss of efficiency.. It really all come down to whether the basic simplicity of a Hydraulic system...

Hopefully I came to the right place for some qualified information on hybrid drive system comparisons. I am looking for opinions and information from "others" based on their experiences. Our business is all based around marine power systems for both vessel propulsion and auxiliary/ancillary...

Gentlemen: I feel kind of embarrassed asking this question (I should know the answer) but after about 10 years and have not received an answer that makes any sense I am going to try here… On electronically controlled diesel engines, such as in a line haul truck, what is the intended purpose...

Gentlemen: Hopefully this is the right place for this-------I have been struggling with coming up with a plausible explanation (in layman terms) as to defining a particular trait that dielectrics or "near" dielectrics" seem to possess when applied in-between, or on to electrically conductive...

Gentlemen: Hopefully this is the right place for this-------I have been struggling with coming up with a plausible explanation (in layman terms) as to defining a particular trait that dielectrics or “near” dielectrics” seem to possess when applied in-between, or on to electrically...

ISZ, The word "Helmholtz" was the key-- A quick search and I came up with this past thread. Exactly what I was looking for to get me started. http://www.eng-tips.com/viewthread.cfm?qid=94353&page=1 Thanks and Happy Hoilidays, Tony Athens http://www.sbmar.com

Gentlemen: Does anyone out there have any formulas for intake pipe length and/or diameters that can be used between the intake manifold and an air cleaner on a NA 4-stoke diesel to help silence the intake noise/pulses.. I believe I read something about this once and I am curious if someone else...

I do not know if this link will help, but possibly you may glean a bit form it. We have beed designing and building marine exhaust systems for well over 20 years and have learned a bit our self that we like to share... http://sbmar.com/Articles/Exhaust_Introduction.cfm Good readin', I...

Setting up custom keel cooling on an engine such as the C-9 will depend upon the rating and the application.. Lower HP levels and low duty cycles may allow you to use used single flow circuits, but if you are asking fo higher output levels in the 50-60+ HP per liter range , you most likely will...

I am doing a side project and know little to nothing about two chemicals that we are working with. I hope I came to the right place to get me on a track that will allow me to do some more testing.... My goal is to come up with a lubricant for a rubber impeller made of neoprene that operates in a...

Just a quickie---We work, on a daily basis, w/ diesels that average 60-70+HP per liter at rated outputs. Turbo charging and low temp aftercooling has played an enormous part in allowing these types of outputs to become realistic and reliable.. As for "low-end" power/torque, again the turbo...

Pretty impressive, but keep in mind this is a "one off" situation with loads of R&D and advertising bucks in the budget..Also, life expectency is measurered seconds and not hours.................If you really want to see where #2 is going and where technology has taken diesel, look at the...

Smokey, I'd like to express a concern with your post as to BSFC, non-turbo, and maybe a 2-stroke............I do not dwell on what might be, but do have a good understanding of what is in the marketplace currently.. Your thoughts seem quite different to what is actually at the cutting edge of...

Mike, Negative pressures are very possible and if I could figure out how to post a picture here of how the underwater part works, I'd do it--Maybe then, are non-believers, could become "born again".. A typical vessel that may see a negative pressure on will only go negative above certain...

Rob, We test approx 50 engines a year, have been doing so for over 15 yrs, and we are quite confident in our methods and test results. We typically use a Magnehelic differential gauge backed up with a Fluke digital and measure in both water column and Hg.. Our test procedures allow use "to see"...

I always thought I had a pretty good understanding of exhaust back pressure limits on diesel engine and the reasons why, until a recent dilemma came up.. For most manufacturers of high performance modern diesels, seems most spec the limit the maximum exhaust back pressure to about 3" hg.. Yes...

Follow Ivymike's advice.....Crankcase pressure is a very significant test for measuring engine condition. As for the turbo oil drain, yes, this must be isolated if you want to see if it is cylinders or bad seals in the turbo. Your testing must be done at various loads all the way to WOT at rated...

This may not be "Top Fuel", but it is certainly "Top Diesel".. The guys on this site http://www.cumminsracing.com/ have taken the 5.9 L Cummins to level that I find hard to believe.. I know this engine well and knew was was tough, but I am now even more of a Cummins fan...

I'd like to know WHO turned the word "WEB" in my post above into a hyperlink completely unrelated to the topic and myself? This is the kind of stuff that is not kosher at all, and could certainly make many feel uncomfortable about posting here.......... Tony Tony Athens http://www.sbmar.com

I found this information on a web site...........Could these numbers really be an accurate representation of a typical top fuel dragster engine?? If so, they are remakable.. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ TOP FUEL DRAGSTERS INFO One dragster's 500-inch Hemi makes more...