Hello all,

Re the TSX torque spec of 172 lb.-ft. @ 4300–4400 rpm in a manual trans...does that apply to all gears ?

Thanks for any input....

Cheers, Mike

 

Yes

 

Yes

 

That's measured at the flywheel at full throttle at that RPM. The engine is outputting that torque BEFORE it reaches the gears.

The engine applies that torque regardless of gear.

Gears all output diffent torque values based on their speed reduction. In 1st gear, and after the final drive, the axle splines are seeing a few thousand lb-ft of torque at that RPM, at full throttle. But the engine has to spin quite a few times for one rotation of the diff.

If the car is geared at 1:1, negating gear losses, then input = output.

Like how your legs are more powerful on your bicycle in 1st gear...but spinning as fast as you can nets you like 12mph.

Your legs can barely get the bike moving in top gear. But spinning them relatively slow results in 25mph.

Same legs. Different outputs because of different mechanical ratios.

 

Anyone know when vtec kicks in? Some sources say 5500 rpm, others say it's variable.

 

5000 rpm....YO!

Variable if you have Hondata or KTuner.