Pre & Post ECU Flash - ZX6R Forum
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post #1 of 14 Old 03-12-2017, 06:00 AM Thread Starter
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Pre & Post ECU Flash

Hey Guys,

I know that numbers don't mean so much after looking through a lot of other posts. I took my bike in 2 weeks ago, had it placed on the Dyno. After having that done, the guys thought I could get more with the ECU flash. Then i had to tuned again with improvements. I think the curve looks good and the bikes runs like a dream. What do you think?

Setup:
2013 Zx6r
Racefit Slip On / Blackwidow Stainless Decat Headers
K&N Race Air Filter
Block Off Plates
ECU Flash
Bazazz Zfi
-1/+2



[IMG][/IMG]
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post #2 of 14 Old 03-12-2017, 06:47 AM
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Is the red trace the post ECU flash?

"Basic stuff fellas. Use your head for something other than to break your next fall."

"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #3 of 14 Old 03-12-2017, 07:18 AM Thread Starter
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Is the red trace the post ECU flash?
Yes

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post #4 of 14 Old 03-12-2017, 08:48 AM
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So I see a 2-4 HP gain from about 11K upwards, with about 10 HP from about 13K on.

Good gains for a track bike, I think.
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"Basic stuff fellas. Use your head for something other than to break your next fall."

"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #5 of 14 Old 03-12-2017, 01:29 PM
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I've had my CPU reflashed and feel it was a great improvement. I also had the PAIR & EVSM deleted functions.

Aside from raw numbers, the throttle was noticably smoothed out (esp. off a closed throttle), plus an increase of 500 RPM at the very top.

The objective of my dyno runs were to address weak spots in the PC V. Thus my assessment, is the CPU reflash & the dyno address different niggles in the fueling/exhaust/intake (BMC air filter) process(es). Each action is well worth the expense. Most especially taken as a holistic approach.
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post #6 of 14 Old 04-17-2017, 01:22 PM
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Quote:
Originally Posted by ZedExMuse View Post
I've had my CPU reflashed and feel it was a great improvement. I also had the PAIR & EVSM deleted functions.

Aside from raw numbers, the throttle was noticably smoothed out (esp. off a closed throttle), plus an increase of 500 RPM at the very top.

The objective of my dyno runs were to address weak spots in the PC V. Thus my assessment, is the CPU reflash & the dyno address different niggles in the fueling/exhaust/intake (BMC air filter) process(es). Each action is well worth the expense. Most especially taken as a holistic approach.
I'm debating about flashing my ECU. I want to flash mine mainly get rid of the on/off throttle.
How is your fuel economy before and after the flash?
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post #7 of 14 Old 04-17-2017, 11:53 PM
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Here is my Dyno. Stock motor, Full SS M4 GP, BMC race air filter, PC5, ECU flash, Fresh plugs and fluids. Blue line is the first run with the PO tune then the red is after a complete re-tune. Bike has about 9k miles -1 +2 gearing.

09 zx6r
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post #8 of 14 Old 04-18-2017, 01:19 AM
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Pretty solid gains.

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post #9 of 14 Old 04-18-2017, 06:45 AM
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What did they do to make gains? Assuming your AFR is already good, I can't think of any way the ECU could get me more power other than playing with ignition timing.
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post #10 of 14 Old 04-18-2017, 10:56 AM
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I'm debating about flashing my ECU. I want to flash mine mainly get rid of the on/off throttle.
How is your fuel economy before and after the flash?

Virtually unchanged.

If you're hesitant about spending loads I would easily suggest using the outfit several of us on the Forum have used, and as far as I know, no negative feedback: Schnitz Racing.

https://store.schnitzracing.com/schn...ki-zx6r-13-15/

The base price is $75.00; I added two options, each an extra $10.00: I disabled the EVSM, & disable PAIR. So, for under a $100 bucks (+ $6.00 postage) I had my plug-n-play brains sorted out. This also allowed me to put locate the PC V under the rider's saddle and not back in the tail unit. I feel this is a safer location in the event of an accident - if the bike endos (not that I plan on crashing, but no one plans on crashing.)

Is it gonna make you feel like you are riding a ZX-10R? Of course not, but it improves the "flow" of power, especially from a closed throttle - there's not the 'normal' stumble as one takes off from a stop, or when having a 'neutral' or closed throttle coming hard out of a turn.

When I did mine, it was all part of an orchestrated combo of: BMC air filter, Ivan's block-off plates, DynoJet PC V, Ixil link-pipe, and Yoshimura R-77 pipe, and I had it dyno-tuned by one of the country's top tuning/race establishments, EDR Performance. I also went with a 520 chain, SuperSprox +2 rear sprocket and -1 Vortex counter-shaft sprocket for peppier moto-vation.

EDR Performance

I am very pleased with the results. Again, my fuel consumption is essentially unchanged if you ride it in the same manner as previously done. But pick-up is cleaner/crisper than stock, thus, it is so much more enjoyable than stock that sometimes it's so fun to yank the throttle cables and it's here where there's the fly in the ointment.

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post #11 of 14 Old 04-18-2017, 02:34 PM
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It would be nice to get rid of that on / off throttle. If nothing else, my wife would appreciate it when she's riding as a passenger. Also hate it when I've got it leaned over in a low gear. Let off enough to let it engine brake on accident and it's gonna snap into engine braking and then snap again when you go back to acceleration.
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post #12 of 14 Old 04-18-2017, 02:45 PM
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Originally Posted by oic0 View Post
It would be nice to get rid of that on / off throttle. If nothing else, my wife would appreciate it when she's riding as a passenger. Also hate it when I've got it leaned over in a low gear. Let off enough to let it engine brake on accident and it's gonna snap into engine braking and then snap again when you go back to acceleration.
A PcV and a tune is the best thing to get rid of a bad on/off throttle transition.
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post #13 of 14 Old 04-18-2017, 05:21 PM
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A PcV and a tune is the best thing to get rid of a bad on/off throttle transition.
Have an autotune and properly set AFR. The R6 throttle tube and lower gearing magnify it. AFAIK its an ECU setting put in to meet an EPA regulation where the fuel is cut off when you let off the throttle in certain conditions. I assume when flashes say they reduce engine braking, they are removing that.
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post #14 of 14 Old 04-18-2017, 07:53 PM
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Quote:
Originally Posted by oic0 View Post
It would be nice to get rid of that on / off throttle. If nothing else, my wife would appreciate it when she's riding as a passenger. Also hate it when I've got it leaned over in a low gear. Let off enough to let it engine brake on accident and it's gonna snap into engine braking and then snap again when you go back to acceleration.
Quote:
Originally Posted by oic0 View Post
Have an autotune and properly set AFR. The R6 throttle tube and lower gearing magnify it. AFAIK its an ECU setting put in to meet an EPA regulation where the fuel is cut off when you let off the throttle in certain conditions. I assume when flashes say they reduce engine braking, they are removing that.
I would definitely be interested in hearing if it clears up your jerky throttle on/off issues. I am having the same issues.

It's weird that some bikes seem to have the issue and some don't (even within the same year model/generation). I think it's something other than the ECU causing it though, because my bike didn't do it before, and my friend's 2012 with most of the same mods doesn't do it (main difference is he is on stock gearing and I'm using -1/+2). I'm not sure at what point my bike started doing it, but I'm wondering if it's because the throttle bodies need to be synced again.

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