Ok, so let me see if I am not reading this with blurry eyes.... Do you really believe the claims of these guys? I quote: "This engine based on the type 1 VW engine produces an incredible 200ft lb + Torque and with 85 Horsepower driven through our Helical Gear Drive will surely give your Aircraft what it needs up front"
So, let me see if my old race engine math is working today... If this motor is producing 85hp and 200ft/lb of torque... with HP = torque * rpm / 5252, that would mean that this motor is producing 200 ft/lbs of torque at 2232 rpm. Why does he use a gear reduction drive with that many ponies at that low of an rpm? Look at it this way.... If he's running it at 4500 rpm and using a gear drive, that means 200*4500/5252 = 171 horsepower. Wow....he's some kind of magician to be making 1.3 hp per cubic inch. 1 per cube was always the majic number for street racers. Reality is this....ask him what RPM his horsepower number represents. Chances are it's 4500. At that RPM, he's producing more like 100 ft/lbs of torque. Then ask yourself how long that motor will live turning that fast.... I know a drag motor only has to live for 10 seconds. Advertising hype...... Scott --- Phil Matheson <mathes...@dodo.com.au> wrote: > Any opinions in regard to engines? > > http://www.vw-engines.com/ > > Don't overlook VW engines RG2000 or RG2000EFI > > 100hp 1.6 helical Gear reduction. 200ft lbs torque > turn over a 60inch prop > or a > large pitch. > > > > Phil Matheson > mathes...@dodo.com.au > VH-PKR ( Phil's KR) > 61 3 58833588 > Australia.( Down Under) > See My KR2 Building Web Page at: > http://mywebpage.netscape.com/flyingkrphil/VHPKR.html > See our VW Engines and Home built web page at > http://www.vw-engines.com/ > www.homebuilt-aviation.com/ > http://corvair.vw-engines.com/ > > > _______________________________________ > Search the KRnet Archives at > http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to > krnet-le...@mylist.net > please see other KRnet info at > http://www.krnet.org/info.html > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
