main source of mid-range dip

2710 Views 15 Replies 9 Participants Last post by scout, Aug 8, 2016

crazykyy

Discussion Starter · Aug 2, 2016

Greetings,

Here's a question for the tech-oriented crowd: How much of the mid-range dip is due to software settings to clear emissions and noise legislation (which can be gotten rid of through an effective flash) and how much is due to physical limitations of the exhaust system?

The reason I'm asking is that I'd like to retain my stock headers, and the cat also (but mostly for keeping noise down to non-obnoxious levels), but would still like to try to get some more midrange power (among other general fixes) through a flash. Is this reasonable or would I be wasting time and money try to do this without ditching my cat (and possibly the stock headers)? I've tried to search around a bit online, but the dyno charts I've seen aren't necessarily informative regarding the mods done to achieve them.

Thanks very much for your knowledge.

1 - 16 of 16 Posts

afkjustin

· #2 · Aug 2, 2016

May want to add what year bike you have as it will change the answer.

crazykyy said:
Greetings,

Here's a question for the tech-oriented crowd: How much of the mid-range dip is due to software settings to clear emissions and noise legislation (which can be gotten rid of through an effective flash) and how much is due to physical limitations of the exhaust system?

The reason I'm asking is that I'd like to retain my stock headers, and the cat also (but mostly for keeping noise down to non-obnoxious levels), but would still like to try to get some more midrange power (among other general fixes) through a flash. Is this reasonable or would I be wasting time and money try to do this without ditching my cat (and possibly the stock headers)? I've tried to search around a bit online, but the dyno charts I've seen aren't necessarily informative regarding the mods done to achieve them.

Thanks very much for your knowledge.

crazykyy

Discussion Starter · #3 · Aug 2, 2016

Oops, sorry thought I posted in the Gen5 section... 2016 ZX10R

turtle1000

· #4 · Aug 2, 2016

If it's a North America bike it'll gain a little power from just flash down low. I'm debating leaving on the cat to keep it quiet as well. Obv better if removed but it's a noise trade off

obijack

· #5 · Aug 2, 2016

Contact Nels at Two Wheel Dyno Works. He is very knowledgable about the gen 5. The flash alone will eliminate your issues. I had mine done by him and it is so nice. Plus auto blip down shifts.

crazykyy

Discussion Starter · #6 · Aug 3, 2016

Fair enough, turtle1000, that's what I was thinking.

And thanks for the reference, obijack. I was thinking about getting the Woolich setup for the auto-tune capabilities, but I'll check into Two Wheel Dyno Works regarding the flash.

scout

· #7 · Aug 4, 2016

there is no real mid range dip or whatever. Get rid of the cat but keep it. Plenty of quiet cans to select a quiet can.

ZX10RArcher

· #8 · Aug 4, 2016 (Edited)

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obijack

· #9 · Aug 4, 2016

If you have access to a reputable local tuner or can tune yourself i'd go with woolich. If your like me and have no desire to try and tune a $16,000 bike, and no local tuners, an ecu flash is in order.

turtle1000

· #10 · Aug 4, 2016

ZX10RArcher said:
Run 002 = 100% bone stock 2016 /w just a few hundred miles on it
Run 009 = 100% bone stock 2016 tuning just the air fuel mix
Run 021 = 2016 removing entire stock exhaust system and fitting Akrapovic Evolution full race system, adjusting only the ETV mapping and Ignition timing values (zero fuel adjustments were made from the stock fuel values). Adjusting the fueling, leaning it out would net me another consistent 3-5HP/1-2TQ throughout the rev range from bottom to top.
Same bike, same dyno all within 24 hours.

View attachment 380353

If I do the Carbon akra slip on I pray for half these gains..

Walter

· #11 · Aug 4, 2016

ZX10RArcher said:
Run 002 = 100% bone stock 2016 /w just a few hundred miles on it
Run 009 = 100% bone stock 2016 tuning just the air fuel mix
Run 021 = 2016 removing entire stock exhaust system and fitting Akrapovic Evolution full race system, adjusting only the ETV mapping and Ignition timing values (zero fuel adjustments were made from the stock fuel values). Adjusting the fueling, leaning it out would net me another consistent 3-5HP/1-2TQ throughout the rev range from bottom to top.
Same bike, same dyno all within 24 hours.

View attachment 380353

Wow. Very impressive!!!

take risks

· #12 · Aug 4, 2016

obijack said:
Contact Nels at Two Wheel Dyno Works. He is very knowledgable about the gen 5. The flash alone will eliminate your issues. I had mine done by him and it is so nice. Plus auto blip down shifts.

Nels is the man! He does great work! See him for sure.

mpp12

· #13 · Aug 7, 2016

the trick is the expensive exhaust...
that is what the dyno is telling.

turtle1000

· #14 · Aug 7, 2016

mpp12 said:
the trick is the expensive exhaust...
that is what the dyno is telling.

That evo really shines from 5-10k I doubt a slip would make that much power there. Up top slips do good I've noticed

crazykyy

Discussion Starter · #15 · Aug 8, 2016

ZX10RArcher said:
Run 002 = 100% bone stock 2016 /w just a few hundred miles on it
Run 009 = 100% bone stock 2016 tuning just the air fuel mix
Run 021 = 2016 removing entire stock exhaust system and fitting Akrapovic Evolution full race system, adjusting only the ETV mapping and Ignition timing values (zero fuel adjustments were made from the stock fuel values). Adjusting the fueling, leaning it out would net me another consistent 3-5HP/1-2TQ throughout the rev range from bottom to top.
Same bike, same dyno all within 24 hours.

View attachment 380353

That graph is very telling, indeed. Thanks so much for sharing!

scout

· #16 · Aug 8, 2016

Don't look at graphs but watch the green flag drop. When that happens the bullshit stops. Trust me.

1 - 16 of 16 Posts

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