Rear wheel horsepower conversion




Rear wheel horsepower conversion

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  • Many muscle car enthusiasts are always looking for a way to calculate rear wheel horsepower on their successively modified vehicles. Rear wheel.

    I know most Dyno Test report the Rear Wheel HorsePower value. How would you calculate flywheel horsepower? In other words, how much.

    Estimate Rear Wheel Horsepower. 1/8 ET (seconds), 1/4 ET (seconds), VEHICLE WEIGHT (pounds). , , , , , , , ,

    Rear wheel horsepower conversion

    Rear wheel horsepower conversion

    Very good should pass tech You may see something, but you need to consider what you gain to be a benefit. Find More Posts by ljustin Is there some sort of equation or does the trans.

    Rear wheel horsepower conversion

    Rear wheel horsepower conversion

    Rear wheel horsepower conversion

    Rear wheel horsepower conversion

    Rear wheel horsepower conversion

    Estimate Rear Wheel Horsepower

    Welcome to Club Cobra! The World's largest non biased Shelby Cobra related site! I want to register an account for free right now! For registered members this ad will NOT show. Main Menu Portal Forums. Flywheel to Rear wheel HP conversion. Register now for free! If I'm wrong, I'm sure I'll hear about it here soon Most data came from chassis dyno operators comparing RWHP with the manufacturer's engine rating.

    Maybe a couple tuners would run an engine on an engine dyno, then a chassis dyno. Various brands of chassis dynos would give different HP numbers for the same vehicle. Chassis dynos calculate torque and HP by measuring incremental angular accelerations of the big drum. Its inertia "loads" the engine and goes into the calculations. Unknown and variable quantities of inertia come from the wheels, engine flywheel, transmission etc that contibute some inertia to the whole system aft of the engine.

    Rear wheel horsepower conversion

    If one really wanted to see large chassis dyno numbers, he'd use an aluminum flywheel and the lightest wheels and tires he could find. The engine would make the same torque and HP, but the chassis numbers would be higher. I believe that's how it works. However, don't expect HUGE gains by just changing to an al-um-i-num flywheel and lighter wheels. You may see something, but you need to consider what you gain to be a benefit.

    Read the threads and look on the web about using which flywheel for your application. There are also variables on the engine dyno as well. For the best numbers I have seen builders use electric water pumps, carb spacers with the shops carb and stepped headers.

    Rear wheel horsepower conversion

    There is also parasitic loss due to accessories like water pump and alternator, not to mention the differences in cobra headers and the short little air cleaners we use. This all happens before the drive train loss! What really matters is how much are you able to put to the ground and how fast can that peak power be delivered. These cars weigh between 2, and 2, pounds.

    When you think about it, even HP at the wheels is pretty damn good. I think chasing a big RWH number on these cars is more vanity than common sense. And, yes, I have this sickness.

    Next car will be the "common sense" car, I promise. I saw the point made by CSXDreamer illustrated on one of those half hour car shows where they hop up cars. They took a showroom stock import sedan and prepped it for road racing.

    Rear wheel horsepower conversion

    They started by taking dead stock dyno readings and lap times. Next they upgraded the wheels, tires and brakes, and did some intake and exhaust improvements before putting it back on the dyno. They were surprised and befuddled when the modified HP at the wheels was lower than the baseline. They later figured out that the upgraded wheels, tires and brakes had more angular inertia than the stock equipment. Ultimately, all the improvements they did to the engine served only to restore the HP at the wheels to what it had been when the car was stock.

    Building a Cheetah Evolution. No doubt, most will blame it on the donuts. You're just jealous because the voices only talk to me Earth is the insane asylum for the universe. The gene pool could use a little chlorine. He has dyno'ed motors and then installed them in Cobras. Also depends on how loose your converter is in an auto. Ask me how I know BB code is On. All times are GMT The time now is The representations expressed are the representations and opinions of the clubcobra.

    Fredric Aasbo's New Drift Car Revealed + Ford Coyote V8 Swap FR-S - Papadakis Racing Shop Tour



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