i cant disagree with this, having spent a load of dosh to DE TUNE my road race tune in the search for torque over bhp.Ian Hepworth wrote:I don't think most people understand a dyno graph so using them as a sales method is of limited use.tony wrote:I think the hp figure is a big selling point for any tuner. (In fact torque is just as if not more important to see how a motor really performs.) Most tuners websites or adverts have reference (and rightly so if they know their beans) to power output, and what they can do for you etc. Tuning/hi performance is their business after all. I understand the point about how motors speak for themselves but this is a fairly large uk market here and If tuning was my business and I had no other way of 'showing off' my work in the advertising sense other than word of mouth then I would look at websites and dyno graphs and power outputs.
Dyno graphs with speed along the bottom are pretty much useless and create the "it pulled 129 mph on the dyno" which makes you want to say "do you often only ride on the flat in a vacuum with no wind resistance".
Dyno graphs with no scales at all (the famous AF RB one) are utterly useless.
The HP figure is sadly all most people understand, high HP is great for the track where you change the gearing and pipe to suit the track but your average scooterist with Mrs on the back and half a ton of luggage needs torque. High HP for the road is good but it's got to be useable. If an engine is kicking in at 8k it's not going to nice to ride on the road.
If you compare it to buying a computer, you might see a chart showing that this machine is 4 times faster than so and so but all you really want to know is will it let you burn a cd while you are typing a letter with something downloading in the background - i.e. you want the reassurance that it will do what you want it to.
cc s rule with torque on tap with power outside the power band so the full rev range can be used and so the scooter will pull away from a set of lights without a racket.