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KiwiPhil's Avatar
 
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The dreaded dyno tells no lies :-)

Well folks, here is my dyno result.

2003 BCR (single but large and powerful spark), Induct, Staintune, FIM chip.

As a point of interest we also dyno'd a 2003 Yamaha R1 which although having much more HP at the rear (128) it only had a fraction more torque (about 3Nm more).

B4 you ask :-) Temp on the day 28 deg celcius, rel humidity 8 percent, number of cold ones on board at time of run = 2, bull**it factor = 0 :-)

Old 01-18-2004, 07:10 PM
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Doesn't look too good! May even be less than stock. Try going back
to a stock setup.
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Old 01-18-2004, 08:40 PM
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lorenfb

Looks can be deceiving, it goes far better than stock. From my perspective I guess thats all that counts at the end of the day.

Strange that it "feels" far more powerful than the numbers show.
Old 01-19-2004, 12:25 AM
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Kiwi, shouldn't an R1 produce alot more than 128 at the rear?
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Old 01-19-2004, 12:59 AM
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the HP numbers looks to be in line with my 02 prep with the same mods. and torque at 67.7 foot-pounds...well your results almost mirror mine...notice the improved numbers are after mods, the other numbers are baseline. it does go much better than stock and even after i or it tried to end its life prematurely...she is still pulling hard in arkansas. what you are definitely feeling is the improvment in torque from 2k RPM and the improvement through the ranges...reegardless of top-end numbers.

dont mind loren's comments. his was so good from the factory that it can outrun an R1 or GSXR1k without any problems



and the new bike for comparison...notice the peak numbers are just below the induct/filter/staintune/FIM setup...but the usability is still there...if not better is some places.

repoe3

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Last edited by repoe3; 01-19-2004 at 04:09 AM..
Old 01-19-2004, 04:03 AM
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and to show that i am really underutilized at work...a comparison graph i compiled via excel and threw in the R6 for *****s and giggles...



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Old 01-19-2004, 04:09 AM
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Looks nice Phil,

We need to talk to your boss Repoe.

As for Loren's comments, they look to come from a guy who hasn't seen many S's dyno'd. Or for that matter, one that, sadly, doesn't understand the difference between road and dyno numbers, and/or chooses to ignore the difference due to some personal agenda or bias. I'd ignore those comments too. It's more than a stock bike would show on all but the most optimistic Dynos. When we ran 5 bikes on a dyno, (various combo of pipe/chips etc) the typical number was 86hp, but with one bike all the way up at 98.
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Old 01-19-2004, 06:00 AM
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Re: The dreaded dyno tells no lies :-)

Quote:
Originally posted by KiwiPhil
As a point of interest we also dyno'd a 2003 Yamaha R1 which although having much more HP at the rear (128) it only had a fraction more torque (about 3Nm more).
Unfortunately, torque numbers without RPM numbers are pretty meaningless. It's the power produced that makes a better comparison (not peak power per se, but the power at any given point on the power curve) as 100HP is 100HP but 100 ft/lbs can be be anything from anemic to explosive depending on how fast the engine is turning.

BTW, did you do a before and after? That would be a better judge of your mods than a single post-mod sample. To give you an idea how much dynos can vary using just a single sample, here's my stock S:



By taking just those two data points you'd conclude that a stock bike is better than a well modified bike, which is not true at all.
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Old 01-19-2004, 06:12 AM
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Repoe3,
Was that Dyno run from my bike???
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Old 01-19-2004, 08:14 AM
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As a slightly related note, I'm disappointed with the narrow power band of our S bikes. You always think a twin has this massive, wide power band, but the truth is that if you want to make good time up a mountain road you've only really got 3K to work with - 5000-8000rpm.

Compare that to my Daytona or TL-S (just as examples) that both had a powerbands about 5k wide (~5000-10,000rpm).
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Old 01-19-2004, 08:23 AM
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The torque and HP curves look like they're right out of the Motorcyclist mag
writeup of the '04 Boxer Cup (March '03). The BCR was completely stock
without a chip and exhaust & other mods. My stock YZF600R lacks the low
end torque (max about 48 ft lbs), but probably has more peak HP than the
BCR.
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Old 01-19-2004, 08:48 AM
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Duhhhhhhh

same dyno? directly comparable? ANY meaning to your comments?

No, no, and no.
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Old 01-19-2004, 08:52 AM
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Again, typical from Roger!
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Old 01-19-2004, 08:59 AM
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bill, yeah, the two that are overlayed (actual dyno results) are from the baseline and post mod runs; albeit different days, so there was more mileage between the two runs as well. regardless, the mods made a difference if there was no numbers on the chart, the improvement would jump out at you...although it still does. still have not done anything further with the replica...so i would expect there are a few extra ponies in there somewhere. never bothered with a baseline for the new one. after 25 miles of riding the new exhaust and chip were installed. difference was night and day. the effort put into the FIM chip is demonstrated on the dyno, IMO. teamed up with lennie's induct and the staintune, they make a wonderful addition to the bike. some time ago, i remarked how nicely the S ran after throwing on some excellemt australian parts...no too shabby for a penial colony the boys down under have their shizzle to-gizzle. trying to use modern slang in order to update my own hipness...

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Old 01-19-2004, 09:21 AM
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Yes, Typical Loren,

When you post incorrect, or highly questionable comments, I tend to refute them. I also try to give credit when/where due. I have no current plans to discontinue this typical policy.
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Old 01-19-2004, 09:23 AM
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I guess I need to be more explicit in my comments for Roger:

Chips and exhausts yield VERY little for the R1100S in the way of torque
and HP. Owners should consider spending their money more wisely,
e.g. GPS units or carbon fiber pieces.
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Old 01-19-2004, 09:29 AM
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GPS?? I prefer $3 maps.

Or was that a joke?
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Old 01-19-2004, 09:31 AM
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Quote:
Originally posted by Lorenfb
Chips and exhausts yield VERY little for the R1100S in the way of torque
and HP. Owners should consider spending their money more wisely,
e.g. GPS units or carbon fiber pieces.
Both of which offer tremendous torque and HP gains.
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Old 01-19-2004, 09:32 AM
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Quote:
Originally posted by Lorenfb
I guess I need to be more explicit in my comments for Roger:

Chips and exhausts yield VERY little for the R1100S in the way of torque
and HP. Owners should consider spending their money more wisely,
e.g. GPS units or carbon fiber pieces.
How about an induct???? Any gains there?
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Old 01-19-2004, 09:40 AM
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This is getting fun.
Old 01-19-2004, 09:53 AM
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