[GEORGERE]

a week ago went to dyno tune my bike... here is the whole story

1. Sat - the shop is busy and the owner tells me the dyno should only take 1-1.5 hrs... i m like "how come? everyone says it's 3-4 hrs job.." then he says: "well, mike is here and we have the link software from dynojet".... so i m like whatever as long as the result i get is good...

2. they started running my bike (i was waiting at the shop) and after like half hour the mechanic comes out with a puzzled face saying "we got a virus w win Vista, we cant run it right, does anyone have win XP laptop here?...." well of course nobody had one, and the owner took the guy in the back to discuss the issue... in a few minutes the guy comes out again and in upset tone tells the owner "only two horses".. i m like I hope thats not my bike...

3. 1/2 hour later they tell me my bike is ready... yeah, my bike gained 2 horses after BMC filter, MIVV exhaust, and PC3... but when i looked at the dyno chart the total was 100 horses... i m like WTF? my bike stock pulls 103HP and after tunning u cant even beat that, WTF... but the owner tells me thats how they do it, and that stock bike would never actually pull 103HP, and that different dyno shops might have different results b/c they use diff tricks to increase the result on the chart, but basic set up like mine is 98HP - thats it... well I was pissed... i now have cocoroaches in my head :screwy that my bike doesnt even have stock power anymore.. noise is good though (bright side )

my Dyno Tuning bright side:
a. power curve is smooth... i dont think i have any gaps which i did after exhaust/filter/pc3 installation (i used graves map as temp).
b. sound is great - gotta love moto gp pipes

Down side:
1. idle ocasionally gets rough, very rough - jumps upto like 500 RPMs sometime, which i hoped would go away after dyno tuning
2. $400 exhaust + $75 filter + $260 PC3 + $250 dyno tune = 100.43HP????? well that sux

map attached....

What do u think? Was it BS dyno or it is a standard process? if not, what can i do to make them re-dyno my bike properly? What's up with idle? why is it jumping RPMs?

thnx in advance! :bow

 

[IHav2P]

There's a lot of factors that make up how your bike runs. The stock HP factors are at best case scenario. The higher you are (elevation from sea level) the more it drops. The temperature of the air, if they utilize your Ram Air with fans correctly, the humidity, how old your gas in the tank is, your oil type and age, etc, etc. Every Time you dyno your bike it will be different just from nature and changes in your bike. The dyno could be accurate. Now....from what you said in the story it could be off some. They appear to lack some experience with tuning from the comments you made. Most tunings take 2 hours to be done right but they can be quicker/longer. Don't worry about the numbers as much as if you can tell that it runs better with the tune.

 

[IHav2P]

As for the 103 HP stock...every single bike is different for the reasons mentioned above. Yours may never have turned 103 with all the factors involved. To be sure of the change you would have had to dyno the bike BEFORE you did the mods and then again now. You could have had a noticeable increase in HP but you'll never know for sure.

 

[GEORGERE]

thnx man, what do u think about jumping RPMs at idle?

like i said the jumps occur ocasionally - usually after i start the bike... it may jump right away or work smooth and then jump for a minute/two and then smoth out again... and then start jumping again... sometimes it idles so bad that it feels as if 1 of the cylinders is out... i had something like this in my car and it turned out to be head gasket was leaking oil into cylinder and onto spark plug, making the cylinder not to fire.....

some history:
1. i think i overfilled the engine w/oil last summer once - might have casued extra pressure for in the gasket
2. i reved hard once this winter when engine was freakin cold - might possible cause gasket to burn

some ideas:
1. idle was smooth after that noted oil change (i had stock pipe for the rest of the season)
2. rpms always jump once u change fuel/air/pressure ratio, and thats whn i started notice it (after mods)

i know more cocoroaches :screwy

 

[AutoEuphoria]

Seems kind of fishy...one second they're having computer problems, the next your bike has been dynotuned and is ready to go. Did they provide you with before/after charts? If the before/after lines are superimposed over each other on that chart, I see no difference at all. I'd ask for a retune once their computer system was back on line. Not sure how different bikes are to cars in this department, but when I had my old GTO dynotuned with NO MODS, it still picked up 20HP just by adjusting the fuel map. I'd expect to see more than 2HP and virtually no other change after that many mods, especially a full exhaust.

 

[IHav2P]

The jumping would concern me depending on the severity of it. Ever since I installed my PCIII it idles odd at startup but smooths out as the temp rises over 100 degrees, by 165 it runs fine with no odd jumps in the idle. The overfill depending on how much overfilled may be nothing. The revving it hard while cold can cause issues but again there are more factors. Did it jump before the tune too?

 

[GEORGERE]

Did it jump before the tune too?

yes it did in the same way actually, which i attributed to improper map at the time (i was using graves map off dynojet website as temp)...
also, when i asked the tuner would it idle rough now (after dyno job) he said it shouldnt :dunce:

 

[GEORGERE]

Did they provide you with before/after charts?

the map attached here has Blue (prev) and Green (new map) curves

 

[IHav2P]

That doesnt seem right at all. The curve is way too smooth for the before tune.

 

[AutoEuphoria]

Yeah, that's what I was thinking...and it just looks like there is NO difference between the two. I mean, if there was a 2HP difference in peak HP, I could see maybe how that would work (if there were higher pickups elsewhere), but to have those lines nearly superimposed over each other the whole way? That just doesn't make sense to me.

 

[machinedoc]

Looks to me like the shop you got the bike tuned at screwed you over cause there computers were not working and they didn't want to lose out on the money and the time. Id go back there and raise a shit storm then demand to get another tune or your money back cause there should have been a change with the dynotune if at least a small change.

 

[Chango]

At first I was thinking that it was just a case of different dyno different day. My 06 GSXR ran 98.4 on the dyno I took it to, but they usually run 105 on different brands of dynos.

However, the fact that it only took them half an hour and the before/after traces are nearly identical make it sound to me like all they did was download a map off the Dynojet website and charge you a lot of money.

 

[GEORGERE]

what is the "0" throttle position on the pc3 map?

i compared the "custom" map they gave me with map i had in there before (Graves standard slip on exhaust) and the only difference between maps is the 1st "0" column :dunce:

 

[big_vincent]

I know of a dyno competition coming up if you want to try another dyno just to see what kind of numbers they get...i think it's $25 to run. It's in northern Jersey, let me know I can send you the link.

 

[GEORGERE]

I know of a dyno competition coming up if you want to try another dyno just to see what kind of numbers they get...i think it's $25 to run. It's in northern Jersey, let me know I can send you the link.

pls do.. thnx

 

[Agent4573]

what is the "0" throttle position on the pc3 map?

i compared the "custom" map they gave me with map i had in there before (Graves standard slip on exhaust) and the only difference between maps is the 1st "0" column :dunce:

I would print out both maps, and bring it back to them and show them. They ripped you off man. Get your money back and if they won't give it to you, threaten to call a lawyer. Take your money and find a different shop to do the dynotune. What shop did you go to?

 

[GEORGERE]

I would print out both maps, and bring it back to them and show them. They ripped you off man. Get your money back and if they won't give it to you, threaten to call a lawyer. Take your money and find a different shop to do the dynotune. What shop did you go to?

the name of the shop was Absolute Cycle it's in Linden, NJ... they also have a web site absolutecycle.com

 

[IHav2P]

the name of the shop was Absolute Cycle it's in Linden, NJ... they also have a web site absolutecycle.com

Their motto is "We Fix Stupid" isn't it? That's hard to swallow since they appear to be stupid. They were at the Washington DC bike show and I bought some gear from them. Now I feel bad I supported morons.

 

[GEORGERE]

Their motto is "We Fix Stupid" isn't it?

lol, I didnt pay attention to that but yeah, their moto is "everything for the motorcycle and the rider who rides them"
which is kind of "too many words" to me and sounds stupid

 

[itsboosting]

the before and after curve are definitely without tuning. or they are both with tuning and you did not get a real "stock map" curve.



I would simply dispute the charges and go somewhere else.