ECU from Guhls/Dyno ready

[HikerToo_imp]

OK, I got the call, my CB is ready.
Will pick up tomorrow (9/13) morning, can report more then.
Don said he got about 6% more HP, I was hoping for more.
He applied fuel mix tweaks = to PCV, timing advances in lower gears, and removed upper speed limit. Don thinks I will be happy with overall performance and mentioned there were gains throughout the RPM range. I assume if anyone calls with a 2013CB, he can flash ECU without bike, and also thinking would work with stock, Staintune and other exhausts( just like the current PCV map, works with most setups that have been tried).
Will be installing lower handlebars tomorrow during the afternoon rain, I am sure that will add another 4% HP!
Home - Guhl Motors

 

[CIP57_imp]

OK, I got the call, my CB is ready.
Will pick up tomorrow (9/13) morning, can report more then.
Don said he got about 6% more HP, I was hoping for more.
He applied fuel mix tweaks = to PCV, timing advances in lower gears, and removed upper speed limit. Don thinks I will be happy with overall performance and mentioned there were gains throughout the RPM range. I assume if anyone calls with a 2013CB, he can flash ECU without bike, and also thinking would work with stock, Staintune and other exhausts( just like the current PCV map, works with most setups that have been tried).
Will be installing lower handlebars tomorrow during the afternoon rain, I am sure that will add another 4% HP!
Home - Guhl Motors

Sounds good. Don't forget to ask him for the before and after dyno maps and more important the A/F ratio changes.
Edit: Please post the 2 charts.

 

[HikerToo_imp]

Hey CIP, I think he said he just applied the PCV maps for fuel, not sure if he tweaked more from that starting point.
I did ask if it was any different from what he did to yours( the guy from NY's), since it sounded about the same, he said he was able to get more out of this one since he had the bike.......
I also removed the PairValve block before giving it to him, he is aware of that tweak and said I should probably put it back.

 

[the Ferret]

6 % ... Does that equate to about 5 HP? Should put you close to 90 hp.

 

[Cormanus]

Good one HikerToo. Very generous of you to supply your g̶u̶i̶n̶e̶a̶p̶i̶g̶ er bike to Don.

I'm really keen to hear how it goes.

 

[HikerToo_imp]

Just got back from Guhl's with my newly flashed ECU
unfortunately it was raining or roads were wet most of the way home, 75 minutes away...we're talking twisty roads with fresh Amish wagon horse stuff on them, beautiful country though.
I did not have a chance to go over 6K RPM's
One thing I can say, is it still runs good, no oddities were added from the flash, smooth and responsive.
It did seem to pull better from 3 to 4K RPM's
When I got close to home, I was able to do one short run of close to redline shifts and it seemed to have extra pull, although I let off around 95 MPH....
so far, so good.

 

[Lord Popgun]

Any dyno run charts you can show us?

 

[CIP57_imp]

There is no dramatic change with the flash. I had a realized gain of about .2 sec's 0-100. You should notice a better throttle response at 1/4 throttle especially in the lower gears and no limiter is a big plus. Your 60-80 times at full throttle in 5th should be better and smoother.

 

[HikerToo_imp]

Any dyno run charts you can show us?

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.

 

[HondaJon_imp]

Hiker,

Are you still running the stock header or one with a CAT?

 

[Firstfour_imp]

Any dyno run charts you can show us?

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.
That seems strangely low - Cycle World got 82.5 corrected rear-wheel HP stock from the 2013 tested in July '13 issue. :huh: Does Don use a Dynojet unit like they do?

 

[rboe]

Different days, different weather, maybe even different dyno's as well as different bikes

I was reconsidering the flash after ready about the care Honda put into the map so on one level, a small improvement with no funny stuff afterwards is music to my ears. Too often these mods can lead to worse performance on the street where we have to live with the bike.

 

[HikerToo_imp]

Hiker,

Are you still running the stock header or one with a CAT?

stock with Staintune, maybe someday I'll get the header to replace that cat. Although I like the noise level about where it is.

 

[CIP57_imp]

Any dyno run charts you can show us?

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.
That seems strangely low - Cycle World got 82.5 corrected rear-wheel HP stock from the 2013 tested in July '13 issue. :huh: Does Don use a Dynojet unit like they do?

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.
That seems strangely low - Cycle World got 82.5 corrected rear-wheel HP stock from the 2013 tested in July '13 issue. :huh: Does Don use a Dynojet unit like they do? The same model dyno in two different shops can vary as much as 10% or 8 hp, whats important is his gains on the same dyno

 

[Firstfour_imp]

Different days, different weather, maybe even different dyno's as well as different bikes

I was reconsidering the flash after ready about the care Honda put into the map so on one level, a small improvement with no funny stuff afterwards is music to my ears. Too often these mods can lead to worse performance on the street where we have to live with the bike.

Interesting. Did not know that.

Any dyno run charts you can show us?

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.
That seems strangely low - Cycle World got 82.5 corrected rear-wheel HP stock from the 2013 tested in July '13 issue. :huh: Does Don use a Dynojet unit like they do?

Yes, I have them on paper, will try to post electronic copy in next day or so, they were not very impressive, maybe
before = 79
after = 83
but certainly feels snappier, I like the difference.
That seems strangely low - Cycle World got 82.5 corrected rear-wheel HP stock from the 2013 tested in July '13 issue. :huh: Does Don use a Dynojet unit like they do? The same model dyno in two different shops can vary as much as 10% or 8 hp, whats important is his gains on the same dyno

So apparently the takeaway is that HP numbers are really just approximations. I'll keep that in mind when these numbers are used in tests as if facts.

 

[kDiqq_imp]

A dyno sheet will talk. Peak power is such a small thing to look at. Even if it lost 10 peak HP, but gained 5hp over the rest of the powerband, I'd be thrilled. That'd be far faster. So take peak figures with a grain of salt.

 

[HikerToo_imp]

This thing is bad-a##
Had a chance to ride it around twice today on a nice sunny 70 degree day.
Still as smooth as ever
but now....
pulls harder at all RPM's
charges ahead from 3500 to 5500 , where I play around at times
and it even seems to have a louder more aggressive cutting edge growl to the Staintune exhaust ( Don from Guhl's said Honda is known for retarding timing to quiet exhaust?)
have not tried top speed yet, there is a favorite road I usually do that and have not been there
I liked what the PCV did, this does more and better
so over-all, I would recommend this to anyone who were to ask!

 

[the Ferret]

Saweet! Sounds like you are a happy man.

 

[kDiqq_imp]

Already sent an email. Looks like Don wants to charge everyone else $375 and that covers overnite return shipping. Sounds like a solid deal to me. I told him I'm ready to proceed forward when I see a dyno sheet. No reply back yet but I sent him that on friday. Look forward to seeing that sheet!

 

[HikerToo_imp]

Already sent an email. Looks like Don wants to charge everyone else $375 and that covers overnite return shipping. Sounds like a solid deal to me. I told him I'm ready to proceed forward when I see a dyno sheet. No reply back yet but I sent him that on friday. Look forward to seeing that sheet!

That's what I paid too, and gave my bike up for almost 2 weeks, and drove 75 minutes each way, with my wife following me.
I think you are better off calling him, he never answered 3 of my emails, but than I talked to him each time instead.
I can post my Dyno sheet, maybe tomorrow, but I don't think the numbers tell the real story, feel and response may not be measured by horsepower....