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+--- Thread: Peak torque of 2 BRg and 3 Brg (/showthread.php?tid=8809)
Peak torque of 2 BRg and 3 Brg - wild_willy - 10-08-2023
Would anyone happen to have a torque figure @ RPM for late 2 bearing and 3 bearing engines? Searched Forum and internet to no avail.
Many thanks for your assistance.
Bruce
RE: Peak torque of 2 BRg and 3 Brg - John Cornforth - 11-08-2023
Hi
The figures I have are 23 lbs-ft at 2000 RPM for early low compression, and 29 lbs-ft at 2000 RPM for the high compression (latter data from the Thetis marine engine brochure). Both torque curves do not change a great deal over the range 1500 to 3000 RPM
RE: Peak torque of 2 BRg and 3 Brg - Colin Morgan - 12-08-2023
As horsepower and torque are related, the torque can be calculated for any known power output @ a particular RPM. For example, Austin quote 17bhp at 3800rpm, which equates to a torque of 23.5 ftlbs. (10bhp at 2200 rpm gives 23.9rpm.)
This site does the calculation:
https://spicerparts.com/calculators/horsepower-torque-calculator#:~:text=Horsepower%20%26%20Torque%20Calculator&text=When%20you%20choose%20horsepower%2C%20this,foot%2Dpounds%20and%20horsepower).
RE: Peak torque of 2 BRg and 3 Brg - wild_willy - 12-08-2023
Thanks John and Colin. Just what i needed. Loved the Thetis brochure.