Rod Length Copyright © 2020 Wiseco Piston Company Inc. All Rights Reserved - Use of this site is subject to the following list of. It is pointless to address the length of the connecting rod in any … Rod Ratio: a = Rod Length: b = Stroke of Engine: Formula: a / b: Example: 6.0 / 3.5 = 1.714 MPH. This spreadsheet is temporary until we have At 18000 RPM Formula One engines with an RSR of 2.56 achieve peak piston speeds of over 7000 feet-per-minute (FPM). Diff Ratio. RPM Diff Ratio OverDrive ie. Exact weights may vary due to exact composition of alloys, the purity of the materials and other factors. This load increases at the square of the speed, and at higher speeds the rings, pistons, and pins receive less lubrication from the spinning crankshaft. NASCAR and FORMULA 1 ROD STROKE RATIO & PISTON SPEED At 18000 RPM Formula One engines with an RSR of 2.56 achieve peak piston speeds of over 7000 feet-per-minute (FPM). Tire Diameter. Metric to Calculate. Reduced oiling can result in overheated piston tops and skirts as well as the rings and pins. Search, Identify and Order Parts - DanaAftermarket.com. All rights reserved. downloadable MS Excel Spreadsheet. Moving the pin closer to the thrust side causes the piston to acquire shorter rod characteristics. Choose what to calculate, then fill out the remaining inputs and click Calculate. Measure the ratio between the length of the piston rod and the stroke length of the engine crankshaft, which moves the piston from the bottom of the cylinder wall to the top. What is more, the piston pin location in the piston also affects the result of the calculations. .73, .84, .86. For more information visit our, Helpful Automatic Calculators (Requires MS Excel). © 2020 Dana Limited. The calculator below calculates the mass of a solid rod made from a range of common materials. This site uses cookies. At piston speeds above 5000 FPM, pistons must be equipped with forced pin oiling slots to cool the pins, the rings, and the pistons. Crankshaft stroke length (in.) Racing • Performance • Off Road • 4 Wheel Drive • Towing • Motorhome, SAVE POWER WITH UPGRADED PERFORMANCE RACING WATER PUMPS, ROSS BENTLEY TESTS A NEW DRIVER “TRAINING TOOL", HEAT EXCHANGER FOR SUPERCHARGED 13-15 and 67-69 CAMARO W/LSA ENGINE, THE BEST WAY TO IMPROVE POWER OF A SUPERCHARGED CAMARO OR MUSTANG, More Power Faster Acceleration for Supercharged Mustang GT500, Upgraded Water Pumps Cars Trucks Performance Racing OffRoad Motorhomes, UPGRADED HEAT EXCHANGERS BOOST POWER OF SUPERCHARGED CARS AND TRUCKS, UPGRADED CAR HEAT EXCHANGERS IMPROVE SUPERCHARGER PERFORMANCE ALL CARS, NASCAR and FORMULA 1 ROD STROKE RATIO & PISTON SPEED. By continuing to use this website you are giving consent to cookies being used. Direct Fit, Performance, Racing, Jeep, Off-Road, Towing, 4X4, Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device, choosing a selection results in a full page refresh, press the space key then arrow keys to make a selection. Weller Truck Road Speed Calculator. It is pointless to address the length of the connecting rod in any engine, racing or otherwise, without looking into the ratio of the length of the rod to the length of the stroke of the crankshaft. This site uses cookies. RPM. Find a Spicer parts distributor today, or find where you can place your order now on Dana’s streamlined eCommerce platform, DanaAftermarket.com. We have consolidated some of our most helpful calculators into a single Using the rod/stroke calculator and piston pin location calculator along with a modern advanced personal computer based engine development software unlocks a plethora of ideas and results that can be used to improve performance, increase BMEP, torque, power endurance and reliability. This calculator provides a simple way to calculate the ratio between the length of the piston rod and the stroke length of the engine crankshaft. Enter the following values. A shorter rod will create more pressure on the piston skirts but it will have a smoother acceleration and deceleration curve at TDC and BDC. This rod stroke ratio (RSR) is calculated by dividing the rod length by the stroke value. Tire Diameter in inches (Radius x 2) MPH Calculate. The rod to stroke ratio affects the angle at which the connecting rod applies force to the piston. online calculators built into the website, which will require no special Rod Length Calculator: Wallace Racing BACK to Calculators This Calculator will figure the Rod Length using your inputs. For more information visit our Privacy Policy. This calculator provides a simple way to calculate the ratio between the length of the piston rod and the stroke length of the engine crankshaft. Rod Length: Block Deck Height: Piston/Deck Clearance: Piston Compression Height: Stroke: Input All Info, Please: For a more advanced calculator try this one: Rod … This is also known as top dead center, a term used when timing the engine. By continuing to use this website you are giving consent to cookies being used. Rod Ratio Calculator Enter the length of your piston rod under Rod Length and the stroke length of your engine crankshaft under Stroke and press solve to find the rod ratio for your vehicle. A NASCAR Cup engine piston speed reaches 8800 FPM at 10000 RPM with an RSR of 1.91.The F1 numbers are due mainly to the engines’ short strokes. A NASCAR Cup engine piston speed reaches 8800 FPM at 10000 RPM with an RSR of 1.91.The F1 numbers are due mainly to the engines’ short strokes. Also listed below are a few commonly used formulas gathered by our engineers. Rod Ratio Calculator. Measure the ratio between the length of the piston rod and the stroke length of the engine crankshaft, which moves the piston from the bottom of the cylinder wall to the top. Conversely, when the pin is moved toward the non-thrust side of the bore makes the rod act longer. software. Piston rod length (in.)