Hurricane
Expert Class
Posts: 173
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posted September 06, 2008 05:53 PM
Disappointed Dyno
I have an 07 ZX-14. PCIII, flies out, K+N air filter, stock exhaust. Today, a company was nice enough to put it on a dyno just to check horsepower for me. My air fuel ratio's were all good. My HP was 156.6. I expected it to be 165-170. I was disappointed. I see you guys do much better than that. Why do you think mine won't ?
  
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johnnycheese
Pro
Posts: 1008
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posted September 06, 2008 06:16 PM
post the graph ?
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Builder and tuner of some of the fastest N.A. and P/A Hayabusas and ZX12 /14 in Texas
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bigbore4
Zone Head
Posts: 806
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posted September 06, 2008 07:23 PM
Was it on a "real" dyno, such as an eddy current, or one of the inertia roller dyno's like a Dyno jet? It makes a big difference in what the readings are.
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Hurricane
Expert Class
Posts: 173
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posted September 06, 2008 09:14 PM
It was on a Dynojet. Does that really make a difference on the readings? Would it be missing that much HP?
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bigbore4
Zone Head
Posts: 806
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posted September 06, 2008 10:58 PM
Honestly, a dj will show higher hp than a real dyno. I thought maybe you had it checked on a steady state dyno, but if your bike is right, it should show substantially more on a dj.
If you want info about this, go to the factory pro website.
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bigdtd
Needs a job
Interceptors
Posts: 4209
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posted September 07, 2008 07:56 AM
get a pipe!!!
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2006 Black ZX-14,6 inches over,16/42, flies out,BMC Street Filter,Brock's Street Meg,Brock's Radial Mount Strap,PClll with Race map,Dynojet LCD w/Techmount, ZX-14 fender eliminator,Pilot Power2CTs,Speedohealer,Pazzo Levers,Cox Radiator Guard, Garmin Nuvi 265WT
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kingtramp
Expert Class
Posts: 121
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posted September 07, 2008 08:30 AM
BIG BORE CAN YOU EXPLAIN WHAT IS A REAL DYNO,
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Hurricane
Expert Class
Posts: 173
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posted September 07, 2008 10:24 AM
So now you are saying my bike has less HP! I have two friends with 08 ZX-14's. We all pull about the same, it depends on who gets the jump. Mine was the only one that was checked for HP, the others could not do it. The dyno guy said there is nothing wrong with his dyno. So am I being misled about the true HP of these bikes somehow?
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reward69
Expert Class
Posts: 101
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posted September 07, 2008 10:32 AM
Too many variables??
Could be a stingy dyno, tire psi, chain condition, etc...
Whats your elevation where you live. I personally live at 2600 ft and within 30 mins I can be at 800ft. Ive had mine dynoed at both and picked up 9hp. This also could be due to a different dyno but elevation does effect HP.
Personally I wouldnt put allot of faith in dyno levels and let it bother you. There are just too many variables that can give low or high numbers.
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Hurricane
Expert Class
Posts: 173
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posted September 07, 2008 11:05 AM
I am at 2500 ft. I don't know why, it just bugs me. I know there is alot of variables, it just seems thats a lot of HP missing!!!
How much HP do think I can pick up with a Brocks smeg?
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Hurricane
Expert Class
Posts: 173
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posted September 07, 2008 11:12 AM
Sorry, My bike dyno was at 1200 ft elevation.
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smokinzx14
Needs a life
Posts: 10197
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posted September 07, 2008 03:05 PM
quote:
I am at 2500 ft. I don't know why, it just bugs me. I know there is alot of variables, it just seems thats a lot of HP missing!!!
How much HP do think I can pick up with a Brocks smeg?
What Brocks can do for you ? Read my sig ...
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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bigbore4
Zone Head
Posts: 806
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posted September 07, 2008 04:45 PM
"BIG BORE CAN YOU EXPLAIN WHAT IS A REAL DYNO",
Don't use caplock to get attention to your post. It's considered rude.
If you don't know the difference between an inertia dyno and an Eddy Current dyno, then it'll be hard to explain it.
If you are really interested, go to the f pro website. He explains it much better than I can.
Cheers
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bawls
Needs a job
re-learning to ride
Posts: 2701
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posted September 07, 2008 04:56 PM
yeah, no need for yelling lol.
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Best 60ft: 1.42
Best 1/8th: 5.97
Best 1/8th MPH: 119
Brockland Police Badge # 001
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johnnycheese
Pro
Posts: 1008
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posted September 07, 2008 05:30 PM
quote:
"BIG BORE CAN YOU EXPLAIN WHAT IS A REAL DYNO",
Don't use caplock to get attention to your post. It's considered rude.
If you don't know the difference between an inertia dyno and an Eddy Current dyno, then it'll be hard to explain it.
If you are really interested, go to the f pro website. He explains it much better than I can.
Cheers
factory pro and the dj 250 are both eddy current
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Builder and tuner of some of the fastest N.A. and P/A Hayabusas and ZX12 /14 in Texas
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billeason
Zone Head
Posts: 711
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posted September 07, 2008 06:01 PM
Yep. and if you know what your doing they make a good tunning tool and thats it ! If not they can promote good parts sales!! Don't sweat the hp figures, take it to the track and see what kind of mph it runs compared to your buddies as long as your sure his is stk or bikes are closely modded. If you dont want to run it im sure one of your group is a drag strip rocket ! Let him ride the bikes. You will learn more about your bike there then you will strapped to a dyno.....
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bill eason
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bigbore4
Zone Head
Posts: 806
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posted September 07, 2008 06:11 PM
Good point, but if I'm not mistaken, the majority of the dj stuff, aside from the latest models is Inertia wheel?
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Hurricane
Expert Class
Posts: 173
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posted September 07, 2008 06:47 PM
Thanks Bill, thats my next step. Does anyone know (roughly) how much HP gain with the right exhaust?
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MJ
Zone Head
Posts: 560
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posted September 08, 2008 03:35 AM
quote:
So now you are saying my bike has less HP! I have two friends with 08 ZX-14's. We all pull about the same, it depends on who gets the jump. Mine was the only one that was checked for HP, the others could not do it. The dyno guy said there is nothing wrong with his dyno. So am I being misled about the true HP of these bikes somehow?
I use to ride with a couple of guys that had stock hayabusa's..they had them both dyno'ed at sea level at different shops. One put out 152hp the other 163. We ran our bikes a lot together and switched riders a lot. Guess which busa was faster......neither. They were dead even 
For comparison purposes, unless bikes are ran on the same dyno, on the same day, back to back, dyno's are as useful as a limp dick on your honeymoon. All they're good for is a tuning tool. The whole dyno thing is an overrated, misunderstood dick stroke. Forget about it and move on
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BobC
Pro
Posts: 1736
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posted September 08, 2008 04:45 AM
The dyno read-out is just a number. It should be regarded as a tuning aid which gives a before and after result for any changes made to your bike. The only real comparison between bikes is "same dyno same day". Don't lose any sleep over it.
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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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Hurricane
Expert Class
Posts: 173
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posted September 08, 2008 08:07 AM
Thanks guys!
I'll try not to let it bug me!!! 
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