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I don't mean to quibble, but all the mags of the era listed max hp (50) @ 9000rpm, and redline @ 10,000. www.bikez.com doesn't list a redline, but does list hp peak at 9000. It does appear that the turbo versions of this engine made max hp @ 8000rpm, so it's possible that they were redlined @...

I got into a debate with some friends the other day, when I insisted that a cam-in-block & rocker arm system could live with a 10k redline in a production engine. My proof was the Honda CX 500. None of these whipper-snappers ever heard of it, and I can't find a technical drawing of any sort for...

Three reasons: #1. Oiled foam is superior in flow characteristics to cellulose (paper) as soon as the paper element gets even the slightest use. Oiled foam is equal to oiled cotton gauze in flow characteristics, and is far superior in dust apprehension. #2. Both projects (car and motorcycle)...

Well, here's what I've found so far. Uni Filter sells bulk filter material http://www.unifilter.com/online%20catalog/accessories.html but they don't seem to offer guidelines about (area of foam)/(cfm) or any real definitive information about their foam. Yes, I know I'm looking for open cell...

I'm working on two projects (a bike and a car) for which I want to build my own oiled foam filter elements. However, I can't find any specific information on appropriate foam density or if there is a specific quality of foam most appropriate to use for air filtering. Obviously, my concern is...

Actually, if I understand hvychvy81's question correctly, this link might be the best one on team integra's website: http://www.team-integra.net/sections/articles/showArticle.asp?ArticleID=466 Make sure you go to page two of that post, as well. One source I've come across as I work on modifying...

I'm using an open source engine management system called MegaSquirt. On their website they have a calculator to use based on the expected horsepower of the engine. The algorithm it uses appears to be this: ((# of throttle bores) * (throttle bore in mm)squared)*.0575=horsepower For more info, you...

I think the measure you want to compare is "valve curtain area times duration". Valve curtain area is the circumferece of the valve times valve lift. This measures the wall of the cylinder that the valve moves through, which is the area of the opening provided by the opened valve. Using this...

LOL! Actually, your comment about WW2 aircraft engines jogged part of my (admittedly chaotic) train of thought about this project. A friend was an airplane mechanic in WW2 and is also a real steam fanatic. We have had long talks about history's engineering failures. Yeah, centrifugal blowers for...

MikeHalloren, Are you Scottish? Murphy would have loved you! Yes, I know the probability of failure is high. That's what makes this fun. Beating Murphy is what it's all about. The local landfill has its share of my failures. But today's gears and bearings aren't WW2 quality. Anyway, I'll let...

To SBBlue; No, absolute pressure of 170Kpa, boost of about 70Kpa (`10 psi boost). Sorry, I think in absolute, since my driving regularly goes from sealevel (south carolina) to 11k (Rocky Mountan Natl Park, Colorado). Yes, the boost parameters are open for question (remember, I'm just benchracing...

I'm talking composite just for the compressor housing. The gear box will be aluminum with oil-cooled ball bearings. My thoughts are along the line of a designated sump/cooler and using ATF. With the work I've done underhood to minimize heat, the majority of heat will just be from the 'charger's...

first post. I'm working on a hare-brained idea. Not that it wouldn't be easier to find the most suitable part already made by somebody else, but I like making things myself, and I've got the time. I've been doing some work with Kevlar/vinyl ester resin to make underhood components for my...