BobC
Pro
Posts: 1736
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posted August 24, 2006 04:55 AM
Dyno' Set-up
Just got back from the Dyno at GT Motorcycles in Plymouth (UK). Steve the magician has worked his magic and the good news is ---------------- 192.9 bhp and 112.4 ft-lbs Torque.
To say I'm happy is an understatement. The bike has a TiForce full system and Power Commander, othewise it is TOTALLY stock, 1200 miles on the odo' and running on ordinary unleaded fuel.
I arrived at GT this morning with a zero map in the PC and the figures from the first run, before any adjustment, were 184.3 bhp and 108.5 ft-lbs. Steve managed to get rid of the glitches in the curve and find extra power. They reckon it's the most power they have seen on an otherwise standard bike with just a pipe and PC.
I'm just praying for decent weather on Sept 2nd and 3rd. It's our last meeting of the season and I want to see what she'll do now. Bring it on.............
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
  
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tslewisz
Expert Class
Posts: 328
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posted August 24, 2006 05:39 AM
Very nice numbers. What kind of dyno? Are those STD, SAE, or...? Smoothing?
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BobC
Pro
Posts: 1736
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posted August 24, 2006 05:54 AM
It's a Dynojet 250
Regarding "Are those STD, SAE, or...? Smoothing?" Not sure.
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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tslewisz
Expert Class
Posts: 328
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posted August 24, 2006 06:09 AM
Should say on your dyno sheet.
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BobC
Pro
Posts: 1736
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posted August 24, 2006 06:15 AM
You're right, it does. STD Horsepower.
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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psycho1122
Pro
Posts: 1608
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posted August 24, 2006 06:30 AM
NICE!! Looks like my 1270 Dyno #'s.
Question: When does the beast hit 100 ft. lbs?
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You say PSYCHO like it's a BAD thing!!
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BobC
Pro
Posts: 1736
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posted August 24, 2006 06:36 AM
It hits 100 ft-lbs at 5500rpm and peak Torque (112.4) is at around 7750rpm.
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Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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zerMATT
Pro
Posts: 1931
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posted August 24, 2006 06:38 AM
Do you have baseline numbers to comare to?
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'06 Passion Red ZX-14 | Black D&D Slip-ons | Speedo Healer | V1 | zumo 550 | Heli-Risers | PhantomX
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BobC
Pro
Posts: 1736
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posted August 24, 2006 06:57 AM
Sorry, I don't have numbers for a stock bike. Although Mike Grainger, who owns GT Motorcycles, has a stock ZZR1400 and he said he was going to run it on the Dyno' soon. I'll post the figures if I get them.
I've seen anything from low 160's to 170's claimed as stock rear wheel HP. It will be more meaningful to get a set of figures from the same Dyno' though.
____________
Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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tslewisz
Expert Class
Posts: 328
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posted August 24, 2006 07:36 AM
Mine was 162 stock, SAE, smoothing set at 5.
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BobC
Pro
Posts: 1736
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posted August 24, 2006 08:27 AM
Performance Bikes Magazine (UK) quote 167 @ 9700 for a standard 14.
I'm quite happy for now with another 25bhp.
____________
Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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flyboy
Pro
Posts: 1536
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posted August 24, 2006 08:32 AM
 Edited By: flyboy on 24 Aug 2006 09:39
Will someone please tell me what the difference is between an SAE reading and a STD reading?? They apparently tell two different numbers for the same bike with the STD number reading higher. My bike can't get anywhere near a 192bhp reading--more like 174bhp with a PC and smeg. Is Brock using an STD readout on his Diaries? His numbers are very high. What effect does a different "smoothing" number have on a Dyno readout?
Is this a "sales tool" for the Dyno subscribers, which I understand costs about $1,200 a year. Why isn't the bike world comparing "apples with apples"? Lost in this maze--
Good luck BobC in September. I'll be at Bonneville and we can compare notes.
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'There's more living in five minutes flat-out on a bike than some men have in an entire life'.
"The World's Fastest Indian"
One fast red ZX-14,
Three World and four National Land Speed Records,
One faster red and white Cessna Turbo 210
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GUNNER
Needs a life
Posts: 5778
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posted August 24, 2006 09:14 AM
Edited By: GUNNER on 24 Aug 2006 10:23
The dyno is corrected back to a give set of conditions for comparison sakes. The correction factor for STD is a cooler temp and Sea Level>>>>>>>>>>>>> More power  SAE works the same except at lesser than STD conditions.
Basicly your bike makes different amounts of power for every pull and every slight change in weather conditions. Without some kind of Standard to relate everything back to EVERYONE would be lost. A motor may be better after a rebuild but show less power and you would be led to believe that all you work was for nothing. Track testing will always be the real measuring stick, but many people never see a track to aquire numbers. Just keep in mind that STD is always a higher number. Compare apples to apples. My 10R makes 171 SAE and 175 STD as an example. It's not stock completely. That was on a 101 degree day in the dyno chamber. The dyno probably was lucky to actually see 150 out of it in those conditions. It was corrected to that number I related. On a cooler day with better air It will show more power even though the dyno corrected the number. It takes fuel to make power and you just can't put fuel where there's NO AIR and large amounts of water suspended in what air is present.
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BlackMagic14
Needs a job
Posts: 2058
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posted August 24, 2006 01:21 PM
Just keep this in mind they a dyno operator can make those numbers read WHATEVER HE WANTS so it is always best to get baseline numbers to compare rather than just after numbers... for example my bike has had numbers ranging from 152 hp on a superflow eddy-current dyno up to 197 on a dynojet
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Flyboy
Pro
Posts: 1536
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posted August 24, 2006 04:38 PM
Thanks gentlemen.
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BobC
Pro
Posts: 1736
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posted August 25, 2006 01:35 AM
Bearing in mind the above explanations about STD and SAE, Steve at GT Motorcycles was showing me the graph of my bikes dyno' run overlaid with others he'd done on that dyno'. He was showing me a typical Hayabusa and ZX-12R with pipe and PC and a graph of a ZX-12R with a long stroke crank, headwork and other modifications. All bikes owned by friends of mine and bikes I know well. I found it more meaningful than just numbers. Especially as these are the bikes I will be competing against at the next meeting. Add to this a mix of different rider shapes sizes and abilities, it all gets very complex.
____________
Candy Thunder Blue 2006 ZZR1400
Stock wheelbase
Max: 205.4 mph in 1.25 miles
2012 ZZR1400 in Golden Blazed Green
Brock CT Full System. etc
Max: 203.1 in 1 mile (so far)
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johns
Expert Class
Posts: 205
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posted August 27, 2006 04:17 AM
horsepower rating methods
This may help in evaluating different methods of calculating HP on dynos.
1. SAE-(Society of Automotive Engineers, USA) power is corrected to reference conditions of 29.93 InHg of dry air and 77 degrees F.
2. STD or STP-This is another standard determined by the SAE. This standard has been stable for a long time and has been widely used in the performance industry. Power is corrected to reference conditions of 29.92 InHg of dry air and 60 degrees F. Because the reference conditions include higher pressure and cooler air than the SAE standard, these corrected power numbers will always be about 4% higher than the SAE numbers.
3. ECE-(European Community, Europe), Power is corrected to 99 KPA (29.23 InHg) of dry air and 25 C (77 degrees F).
4. DIN-Germany. Power is corrected to 101.3 KPA (29.33 InHg) of dry air and 20 C (68 F).
5. Actual-You may see this on some charts. This is the actual horsepower achieved on the day tested with no correction factor applied. You may get better or worse readings on the day tested depending on varying weather conditions.
The STD readings will always be the highest unless you test on a very cool dry day with high barometric pressure using the actual readouts.
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GUNNER
Needs a life
Posts: 5778
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posted August 27, 2006 08:26 AM
quote:
.
The STD readings will always be the highest unless you test on a very cool dry day with high barometric pressure using the actual readouts.
You are correct and I completely forgot that situation, and it does happen. A little heart breaking to see the dyno take power back away from but it happens.
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