Why, isn't it good for the bike to be nicely warmed up? I thought it's bad to WOT on cold engine?!
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Will be taking the bike to dyno, what to expect?
- Thread starter Corsara
- Start date
Why, isn't it good for the bike to be nicely warmed up? I thought it's bad to WOT on cold engine?!
You may find that Bruce's dyno reads a bit on the low side. I had my GSX-R750 on it during his dyno day in April and was down 10-12 hp from "average" Dynojet readings for 750's (mine is a basically new, yet broken-in 2011). Mind you, the wheel wasn't strapped down.
RedDogDarren
Well-known member
You can expect to be $80 poorer. You can expect nothing else. Your bike also reads 9% too high on the speedometer.
Did I just save you any money?
Did I just save you any money?
Here's what it looks like, the old mikcbr bike:
[video=youtube;sEzDxANDiy4]http://www.youtube.com/watch?v=sEzDxANDiy4[/video]
At this dyno day, it was a club event, you ride your bike up, they strap it down, and run it through it's paces.
You sit back and enjoy a hamburger, watch your bike make a pretty graph on the computer.
[video=youtube;sEzDxANDiy4]http://www.youtube.com/watch?v=sEzDxANDiy4[/video]
At this dyno day, it was a club event, you ride your bike up, they strap it down, and run it through it's paces.
You sit back and enjoy a hamburger, watch your bike make a pretty graph on the computer.
I don't believe a cold bike makes more power. From watching the dyno pulls it seems the 5th or 6th pull on a bike shows the most HP, so I highly doubt starting with a cold bike would be any advantage. They tell you to get your bike warming up while they are unstrapping the person in front of you, so they want it fully up to temp before they run it.
Sweet! Be sure to scan and post up your graphNope, no money saved. Still going.
Might be seein ya tomorrow, blue/white Fiat edition R6S and my GF's 09 R6 black with red flames.
-Jamie M.
Was nice to meet ya! Nice bike, put out some descent numbers! You could really squeeze some more out of her down low, and just a hair more up top, with a more solid AFRDyno done, met with Jamie M. there too
Here's the graph, and video---after the break
My GF picked up almost 4HP with JUST the flash, no tune (and gosh, it needs one
). The AFR was just as messy with her bike bone stock, so the flash didn't do anything to make it worse:Run 1:
Run 2:
I'll try and get her dyno chart from before the flash and post it up so you can see for comparison
I ALWAYS used to out pull her in 6th, I figured cause i had a slight HP edge plus a 50 tooth sprocket, she's only got a 49... but today we did some 6th gear runs and she smoked me every time
Damn flash tune, DAMN YOU!My bike is doing pretty good, the autotune helped level out my crazy AFR a bunch, and I picked up a little over half a horse, but not enough to keep me on top of my GF's bike
Here is what it looked like before!
In my current dyno chart, where it goes rich, I was watching the AFR in my autotune and it said it was going lean!!! It must be something with my funky 02 sensor setup, at the low RPM's it's not getting enough exhaust flow to measure the AFR properly. I might relocate the O2 sensor or just rip it out and do some manual tuning in those rich areas
All in all, a great day!
-Jamie M.
Was nice to meet ya! Nice bike, put out some descent numbers! You could really squeeze some more out of her down low, and just a hair more up top, with a more solid AFR
My GF picked up almost 4HP with JUST the flash, no tune (and gosh, it needs one
Run 1:
Run 2:
I'll try and get her dyno chart from before the flash and post it up so you can see for comparison
I ALWAYS used to out pull her in 6th, I figured cause i had a slight HP edge plus a 50 tooth sprocket, she's only got a 49... but today we did some 6th gear runs and she smoked me every time
My bike is doing pretty good, the autotune helped level out my crazy AFR a bunch, and I picked up a little over half a horse, but not enough to keep me on top of my GF's bike
Here is what it looked like before!
In my current dyno chart, where it goes rich, I was watching the AFR in my autotune and it said it was going lean!!! It must be something with my funky 02 sensor setup, at the low RPM's it's not getting enough exhaust flow to measure the AFR properly. I might relocate the O2 sensor or just rip it out and do some manual tuning in those rich areas
All in all, a great day!
-Jamie M.
Put a Bazzaz on there if you want better results. Yosh 3/4 slip and a Bazzaz ZFI TC on my 2011 ZX10R added 11hp and my AFR is perfect. Ammar Bazzaz built Suzuki's fuel injection and I've yet to see a bike with a Power Commander have more horsepower than the same bike with a Bazzaz.
Why? So his bike looks faster in Timmies parking lot?
It has been proven that cold days produce better horsepower readings.
The air is heavier and produces better readings.
The air is heavier and produces better readings.
I don't believe a cold bike makes more power. From watching the dyno pulls it seems the 5th or 6th pull on a bike shows the most HP, so I highly doubt starting with a cold bike would be any advantage. They tell you to get your bike warming up while they are unstrapping the person in front of you, so they want it fully up to temp before they run it.
Sweet! Be sure to scan and post up your graph
Might be seein ya tomorrow, blue/white Fiat edition R6S and my GF's 09 R6 black with red flames.
-Jamie M.
Cold isnt good and neither is hot, warm is what you want...Most good shops will do 3 runs on a cold bike, and use the middle run as your "heat" run...The first will be less HP because its cold, the last will be less HP because its too hot, the middle with be the best example of your true HP in normal temperate range
No disaggrement from me there
On my GF's first run (and mine too) the ambient temp printed on the dyno sheet is 75f, and on the runs I just posted it's 97f! Makes the numbers even more impressive WTF, are you saying I don't "ride"? lol.
-Jamie M.
Question: in that case, why would shops even bother doing the 3rd run at all? Am I missing something?
Was nice to meet ya! Nice bike, put out some descent numbers! You could really squeeze some more out of her down low, and just a hair more up top, with a more solid AFR
My GF picked up almost 4HP with JUST the flash, no tune (and gosh, it needs one
Run 1:
Run 2:
I'll try and get her dyno chart from before the flash and post it up so you can see for comparison
I ALWAYS used to out pull her in 6th, I figured cause i had a slight HP edge plus a 50 tooth sprocket, she's only got a 49... but today we did some 6th gear runs and she smoked me every time
My bike is doing pretty good, the autotune helped level out my crazy AFR a bunch, and I picked up a little over half a horse, but not enough to keep me on top of my GF's bike
Here is what it looked like before!
In my current dyno chart, where it goes rich, I was watching the AFR in my autotune and it said it was going lean!!! It must be something with my funky 02 sensor setup, at the low RPM's it's not getting enough exhaust flow to measure the AFR properly. I might relocate the O2 sensor or just rip it out and do some manual tuning in those rich areas
All in all, a great day!
-Jamie M.
Do you truly believe you picked up half a HP? Pretty sure the measurement error is greater than that.
Are you missing something? All goes back to your original question "what to expect". Well, it all depends on what you want. We've done this one before but if all you want is a HP number to bore people to death with at Timmies then you only need 2 runs.
It's funny but I've spent quite a bit of time at the track and I hardly ever hear people talk about dyno runs and HP? Torque and HP mean jack **** to most track day riders and (probably) even less to amateur racers. Does that mean track day riders and racers don't use dynos? Not at all.But once it's done it's done. And HP means nothing if you can't or don't use it. I mean look at all the time, effort and money Jamie has allegedly wasted on his and his GF bike. and for what? So they can brag about what they've done? A stock 600 has more than enough HP for the street. The stock map is more than enough for the street. All this waffle about AFR and 6th gear roll ons. What utter bollocks.
If you want to hold your own in a penis swinging competition with the likes of Jamie then go spend a fortune on a Bazazz or PC. But if you don't even know what to expect when you take your bike to a dyno then why bother? Even people who have their bike dyno'ed just for a HP number know why they're going.
Given the ambient air temp difference of 75f to 97f I felt the half a HP difference was justified as at least that much actual gain, as it was done on the same dyno. All the runs I did, on both dyno days, showed a similar result, all of the new ones a half a HP over my previous run
In talking with the guys at Dyno tunes they said that back to back dyno pulls, usually the 5th or 6th pull will show the most HP.
I spent some coin, my GF just $80 for the ECU flash
The 6th gear roll-on's clearly show the improvement in her bike. If we're both at 100km/h on the 401 and roll the grip to the click at the same time, by 145km/h she's got two bike lengths on me. Does this matter? No, not really. Is it fun to make the machine perform the best that in can? Absolutely. Who knows, one day those two bike lengths might save her life when she needs to get out of a sticky situation quick.I think most people buy a PC to smooth out the throttle response i.e. improve on how it comes from the factory, and also to correct their idle and fix their AFR (after they've messed with the muffler to get more sound), to make sure their bike doesn't get damaged from a lean condition. I think only a few get it thinking it'll actually increase horsepower. Do we NEED a Power Commander or Bazzaz? Absolutely, look at those awesome AFR graphs, they need some help. Why is the bazzaz better than the power commander? It controls all 8 injectors right out of the box. Why is the ECU flash better than both? It controls all 8 injectors and the ignition timing, right out of the box (among other things)
-Jamie M.
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