eddy current dynamometer @ Xtreme Machine!! - Page 2 - Sportbike Addicts

SPL170db · 05-10-2007, 10:06 AM

A 2006 GSXR 1000 makes 178 BHP stock.

Fuzy has a slip-on, filter and custom map. So that wouldn't be correct.

MatthewC · 05-10-2007, 10:21 AM

but this dyno isnt really showing bhp its showing the hp at the wheel.. i thought

RCM78 · 05-10-2007, 10:34 AM

OK then, Brake horsepower at the rear wheel...

Bob, stop confusing people...

MatthewC · 05-10-2007, 10:43 AM

i dont know how an ec dyno works
i just figured it would be whp even thought it says bhp becuase of the number
if you factor in 15% loss it would be like 203 bhp

CBRBob · 05-10-2007, 11:48 AM

Quote:

Originally Posted by MatthewC

i dont know how an ec dyno works
i just figured it would be whp even thought it says bhp becuase of the number
if you factor in 15% loss it would be like 203 bhp

203 Engine hp, yes if the dyno didnt read so high.

You are thinking engine HP, BHP is the way a EC dyno tunes. It had a brake on the drum, it measures power at the wheel at a certian drum/wheel speed.

Think of driving your car with your foot on the brake maintaining 20mph at 20% throttle. Lets say it takes 25hp to maintain that speed. Now floor the throttle (100%) but maintain 20mph. You will have to 'brake' harder to keep that speed. You may be making 50hp now but you are braking harder, hence BHP. Measured at the tire or at the flywheel, it dosent matter. The state of tune and the improvement is what matters.

SPL170db · 05-10-2007, 12:55 PM

The definition of Brake Horsepower (BHP), is horsepower measured at the crank before driveline losses, plain and simple.

http://en.wikipedia.org/wiki/Horsepo...ower_.28bhp.29

CBRBob · 05-10-2007, 01:25 PM

Yes, and if you care to unbolt the engine from your bike to get it tuned be my guest......

SPL170db · 05-10-2007, 01:48 PM

No need, had it tuned already and as I told the tuner beforehand I don't care what peak numbers it turns, I was interested in a smooth and useable curve, which is what I got.

CBRBob · 05-10-2007, 03:12 PM

........................

SPRHK · 05-10-2007, 07:20 PM

**njf4i** · 05-10-2007, 08:29 PM

I am so confused. But my friend did make a 175 bhp on extremes dyno with a 07 r1, only add on were power commander, and ack exhaust (not full but with mid pipe)

But my friend on his zx10 got his done on a dyno jet or something with a power commander, full ack exhaust, and ingnition modula was only putting out 168.

So does that mean he would be pushing 180 on extremes dyno???

CBRBob · 05-10-2007, 08:31 PM

Quote:

Originally Posted by njf4i

So does that mean he would be pushing 180 on extremes dyno???

No, more like 195

In2Speed · 05-12-2007, 02:05 AM

Hey Bob, it seems to me you think ours is high for some reason? When we tune using the brake for step tests the numbers are actual wheel horsepower. When we are just doing sweep tests (which is what all the magazines post and everybody across the nation say when qouting wheel horsepower) we use "dynojet" numbers that we came up with by running a bunch of bikes then comparing them to magazines #'s to use as a multiplier. We did this because people were saying our numbers were too low in the beginning so we went with what everybody else uses when handing out dyno sheets. I am not sure exactly I can check but 170 sweep tests usually equal about 155 or so real Factory Pro Eddy Current Dyno Horsepower.

Jay

SPL170db · 05-12-2007, 01:58 PM

Quote:

Originally Posted by In2Speed

Hey Bob, it seems to me you think ours is high for some reason? When we tune using the brake for step tests the numbers are actual wheel horsepower. When we are just doing sweep tests (which is what all the magazines post and everybody across the nation say when qouting wheel horsepower) we use "dynojet" numbers that we came up with by running a bunch of bikes then comparing them to magazines #'s to use as a multiplier. We did this because people were saying our numbers were too low in the beginning so we went with what everybody else uses when handing out dyno sheets. I am not sure exactly I can check but 170 sweep tests usually equal about 155 or so real Factory Pro Eddy Current Dyno Horsepower.

Jay

You shouldn't bow to the street squids that need their egos stroked Jay. I had mine custom mapped there as well and one of the good things I like about F.P. dynos is their repeatablity in results across all of their dynos.

Tell the dorks that are in search of nothing but high numbers to go to Factory Pro's website, read up and get educated on what exactly and how exactly their equipment works and if they don't like to go to a DJ dyno so they can feel like they have a bigger dick

CBRBob · 05-12-2007, 05:30 PM

High #s or low, as long as there is a before and after with a smooth curve, that's all we need.