Hence, 20% more strain on the lower end.... CR "Richard L. Hensley" <[EMAIL PROTECTED]> wrote: One other item: Methanol makes roughly 20% more horsepower than gasoline.
Richard L. Hensley, P.E. Hensley Engine & Machine ----- Original Message ----- From: "Richard L. Hensley" To: Sent: Saturday, March 17, 2007 4:13 PM Subject: Re: [F500] 600cc Costs > Chris: > Some comments relative to the Alky > I've been running methanol for years. 1 oz of castor oil per gallon of > fuel, if there are no fuel tests, pure methanol if they are running tests. > After each race I empty the tank and run enough 40 to 1 gasoline, oil mix > to flush the fuel lines and the carbs or injectors. This also oils the > cylinders. Have never had a corrosion problem. The so called corrosion > from methanol is caused from the water absorbing characteristics of the > methanol plus the fact that when burned the methanol produces a lot of > water vapor. Clearing the cylinders with gas and oil solves this problem. > Some of the others I race with fill the tanks with methanol and block the > vent hole after the evenings events. > Methanol does attack rubber diaphragms however most modern synthetics will > last a season. > Besides most race engines receive at least a partial rebuilt once a > season. > > Richard > ----- Original Message ----- > From: "Chris Reinhardt" > To: > Sent: Saturday, March 17, 2007 3:15 PM > Subject: Re: [F500] 600cc Costs > > >> I say you don't know what you're talking about.... >> The valve adjustments you're talking about are actually cam timing >> adjustments, and they usually don't add power to the motor unless they >> were off from the factory, they move the powerband. Sprints are all >> about torque coming off the corner, so you need to get it dialed in. >> "Rebuilds" is a very general term, it depends on how much is being >> done to the engine. Every watch a micro race? They run about 14k rpm >> the entire lap, they never lift. Alky isn't an option, you either run >> it, or park it, because it's too much of an advantage. Ever seen the >> inside of a alky motor? Alky is very corrosive, it eats everything, so >> you have to rebuild those motors at least once a year if not more. >> >> CR >> >> [EMAIL PROTECTED] wrote: >> Did some research on 600cc maintenance cost. 600cc midget racing here in >> Pa/DE/NJ is big. Kaw, Yam, and Hon engines stock engines/clutch/cab'd or >> FI, >> open air intake and exhaust. Fuel is optional gas or alky. >> >> 1. Stock rebuilds range from $1200 to $1750 depending on how many new >> parts >> are needed. >> >> 2. Pipes around $460 w/muffler for 95 db track rules. >> >> 3. Appears as if older (?) Kaw motors are easy to find and less >> expensive. >> New motors are faster (better factory porting) harder to find find and >> much >> more costly. >> >> 4. Apparently dyno generated valve adjustments settings are a big tuning >> component. Cost is approx $500 just to have this done with no dyno time! >> >> After seeing these prices I quite looking for prices on clutch rebuilds. >> >> I suspect a 600cc car will cost considerably more to build with a >> new/used (?) >> engine and cost more to race. >> >> OK Chris R, what say you? >> >> Louie Schultz >> Philly Region >> >> PS Noticed other interesting facts. Huge fields. Four car maker in PA >> alone. >> A complete 600cc midget with options is priced much lower then new F500 >> cars >> ie big market. Also Linda's Speedway, somewhere around Harrisburg, runs a >> $10K to win race for this class...yea baby! >> >> >> >> --------------------------------- >> Don't be flakey. Get Yahoo! Mail for Mobile and >> always stay connected to friends. --------------------------------- It's here! Your new message! Get new email alerts with the free Yahoo! Toolbar. ________________________________ FormulaCar Magazine - A Proud Supporter of Formula 500 The Official Publication of Junior Formula Car Racing Subscribe Today! www.formulacarmag.com or 519-624-2003 _________________________________ _______________________________________________ F500 mailing list - [email protected] To unsubscribe or change options please visit: http://f500.org/mailman/listinfo/f500 *** Please, DO NOT send unsubscribe requests to the mailing list! ***
