Any of you brain boxes want to explain the difference between bhp and torque? If I have a bike with more bhp than somebody else's but they have loads more torque than me, how does this compare ?
It's in Americanese, but try this: Torque vs. Horsepower - Engine Power Delivery Explained - Hot Rod Magazine
Pretty much what I was going to say So the heaver the item the more BHP and especially Torques u need. My kit car only has 145BHP at the rear wheels and 135 Torques but weights only 640kg with a full tank of fuel. So it's quick. And why Bike engine cars are only good on track. Which I know from experience due to the little amount of Torques they push out. OK on a 200Kg or less bike but not something 2-3 times heavier re the last part of More Torque on your bike but less BHP it's really down the to the rider not bike. if you get a bike with more BHP but less torque then you once their bike is high in the RPM range then generally they will pull away at speed quicker. But you may pull away quicker due to more Toque and more push at the start. if that makes sense BHP is how fast you hit the wall Torque is how far you take it with you
My remapped BMW 535d is torque as hell...being a diesel and having 2 turbo's...i got 750lb's of torque and 350bhp. rear wheel or flywheel..confuses me
On a bike it's about -11% from crank to wheel, shaft drive car or bike is a very inefficient way of transferring power from engine to wheel, also with a car you have the diff to take into account too, a chain is the most efficient way of getting power from engine (final output shaft) to wheel with hardly any loss of power, O ring chains sap power also hence why we have X ring chains, the lower amount of friction in the X ring seals offer less friction than a squashed O ring a chain with no sealing rings is more efficient than a chain with sealing rings.
a well looked after chain,cleaned+lubed makes a suprising amount of difference. just try spinning your rear wheel before cleaning,then after when it's been cleaned etc.
TORQUE is a turning force often measured in ft/lbs. From a standing start you need as much torque the engine can produce to get away , with bikes engine torque levels off around 8k revs from then on its all power (BHP) you can muster.
Saying that..i have a new chain on the blade..it is soo easy to clean...just have to remember to clean every 2 weeks... dirty or a chain that's not lubed often makes the bike run real rough i find..
You will be hard pushed to get any lubricant into the chain if a sealed type, lube will help with ware for sure, its the adjustment of a chain that saps power, a tight chain not only loads up the final drive bearings when the suspension is compressed but saps power as the engine works harder to drive the rear sprocket round, a loose chain will always run more freely and produce more power, proven many times on the dyno for the last 1-2bhp on a shootout.
Good torque means you can set off or drive along in a higher gear, also means wheel will spin or wheelie much more easily in lower gears. Torque breaks things like gearboxes etc, usually more torque with more cc's.
Torque is the turning force work done applied by the pistons to the crank shaft ......so large cc big pistons with long strokes (big v twins) have very high torque Accelerate from standstill v quick but cant flow gas as quick and rev as fast so less dollops of power per second. BHP is the amount of work done per unit time so as much turning forces, torques, per second, the higher the revs the more power all be it in smaller dollops, an IL4 has much shorter stroke so each piston stroke puts much less torque but the fact that there are 4 moving much quicker as they have less distance to travel gives a much higher bhp Tyring Very badly to explain the link between big bore short stroke and high revs and big bhp but relatively low torque.
Big values of Torque give good acceleration. Big BHP gives high Top Speeds. Hence why big Multi Turbo'd Intercooled Diesels from Merc & BMW piss all over high BHP Petrol engine'd Sports Cars in real world driving.
