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Flies tied, no flies, modded flies, stock flies

What flies are you running???

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silentg

silentg

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Seriously thinking about the flies as these are the last on my list of "things to do".

Are you guys running flies tied, no flies, modded flies, stock flies.
Would be interesting in the results and reasons why you did what you did :D

Cheers
 
only reason I am running stock is I still don't understand what the benefits are and don't know if removing them all together is better than modded ones :confused:
 
i'm with you atm romr.

i have read pro's and cons of modded, tied and no flies butnot sure which way i am going to go with them yet. :dontknow:
 
I think you can tie them and see if you like it better. If not just untie and all is good. I would not think there is much diff. between no flies and tied flies.?
 
Mike is correct regarding no vs. tied...

The short answer as posted previously by myself:

Stock flies are only fully open above 7k RPMs. Below this, the ECU controls when and how much they open.

No (or tied) flies give you quicker throttle response in the higher RPMs but causes an air stall in the lower RPMs. This means if you are way down on RPMs and go to WOT, the bike will not actually wake up and take off, but first bog down. Thus, removing or tying the flies simply means throttle control until you hit 7k RPM where you can whack to WOT for the full effect. But isn't this the same as WITH the flies and 7k+ RPMs? Yes, it is. You are actually loosing throttle response in the lower/mid RPM ranges.

Modded flies are to counter the late opening of the secondaries (flies) by allowing an increased interrupted air flow in the low/mid-range for improved throttle response where you live and commute. Again, no effect on the 7k or higher canyon carving range.

Essentially, this boils down to the response under 7k where, as most FZ1 riders know, it is fruitless with/without/modded flies to open to WOT. When you want WOT, get the bike to 7k RPMs quickly THEN whack the throttle. This is VERY easy..........downshifting. At speed, I'll drop the gears and when I get to around 5500, crack the throttle to reach 7k, snap the turn signal and pull out at WOT. There is no more rush/joy/exhilaration on the FZ1 than when you do this. These are top-end bikes and they LOVE to live up there. Below 7k, they are tame beasts that love to tour/commute/amble along.
 
Awesome, that's the summary I must have missed! I do experience the exact lag that you are describing and it really really sucks! I think I'll be ordering the cooperdawg ones. Thanks!
 
Modded Flies with the FCE (which has the effect of opening them more quickly) helps to improve the sub 7K response. Full exhaust system will dramatically help in this area as well. Still not a low RPM monster but you can gain close to 25hp at 7K over stock with the proper combo of mods. This is very useable power . . . .
 
Be very careful with all the Coolaid being served up. There are very few people have any real data to work with and posting conclusions.

Cougar was one of the few guys that I know of that had any real data and that was done on a 2006 bike with a multi channel data logger.

Personally, I have tied flies. My decision to keep them tied had everything to do with getting very consistent throttle response.

Beast
 
I'm running Copperdawg flies and very happy with the results. Modded flies seem to be the best of both worlds. No bogging with large throttle openings at low rpm but still MUCH more responsive everywhere compared to stock.

I tried no flies, small throttle openings and response at high rpm was great but the low rpm/large throttle opening bog was annoying.


Suspect with proper tuning you could minimize the bog with no flies. I know Whittlebeast runs a VERY aggressive setting on the power commander accelerator pump feature and I assume having no flies is the reason why.

I'm very happy with how my bike is running now and the modded flies were one of the big factors in improving throttle response and low-mid rpm power delivery.

She finally feels like a 1000cc bike under 5000rpm. :stunta]:

Most of the guys running tied or no flies admit having the low rpm/large throttle opening bog. Sorry but I'm not willing to live with that, if I wanted a bike that needed to be downshifted 3 gears every time I need some power....... I would be riding a RZ350.


Note on the Copperdawg flies. Mine had a rough edge/burrs on them and 3 of 4 would not even slip into place. Had to sand/file them to make them fit. The first one I tried to slip in place removed some paint from the spindle.:frown:

If I had to do it again I would buy Ivans.
 
As funny as it sound, I wish I had some on my 6R. I would use mod secondary flies. Bone stock it wasn't an issue, but since I slam a set of FZ6 cams with a lot more duration I have that flat spot from 6-8K at WOT. If I keep it part throttle and as the revs goes up and give more throttle it's fine. Even with my 32mm throttle body the air stall if I hammer it around 6K. I tried about 6 different cam setting and still not perfect. Got better from 6-8K with increasing overlap but feel like I gave up on the bottom end.

Still working on tuning the map (find out my O2 sensor was junk last week)
 
Not being able to slam the throttle open with tied flies is normally a accel pump settings issue. MAP based tuning helps in a huge way on this stuff.

Beast
 
First time I did my flies when I remove them completely I love the throttle response, I don't ever have to downshift 3 gears to get power, it just takes a little bit of throttle control. At 5k rpms ibut can go WOT and theru is no bogging, exzactly the opposite! I would rather control my own power rather then let the secondary butterflies restrict it. Just my opinion
 
thanks for your replies guys. lots of info here :icon_beer:

reckon im going to remove them and run without for a couple of days. in the mean time i will be modding the stock ones and put them in next week probs.

new map is in order as i also recently put fresh arrow headers on too :D
 
whittlebeast said:
Be very careful with all the Coolaid being served up. There are very few people have any real data to work with and posting conclusions.

Cougar was one of the few guys that I know of that had any real data and that was done on a 2006 bike with a multi channel data logger.

Personally, I have tied flies. My decision to keep them tied had everything to do with getting very consistent throttle response.

Beast
Click to expand...

Coolaid? How about 20 pages of discussion with data plots being paramount to the actual motorcycle. See: PC5/WB a New way of Tuning - FZ1OA Message Board. No dyno results, no independent evaluation, not even a real personal evaluation of what the actual problem(s) with the bike were / are and it what ways it has been improved. Are you fixing the data or the bike? The coolaid cup runneth over!

Does the FCE speed up the opening of the flies and does this help it to actually make more power? Ivan's charts show that it makes power and the affect on the flies is given (by him) as part of the reason. Do you believe him/his chart? I haven't personally tested this nor have I seen others explicitly test this on the dyno. I have, however, seen any number of "full package" dyno charts that all have a remarkably similar numbers and curve shapes to his (full package charts) which give credence to his testing. I also have a "full package" 06 that I ride frequently and can say without question it consistently delivers smooth, linear, bog free power in buckets and buckets.

First chart is stock vs fce added; otherwise stock. The rest of the charts are "full package."
 
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I have an 08 with Two Brothers exhaust, gutted cat, air box mod w/K&N and that's it. Will modding or removing the flies make a good difference? I don't have a fuel manager and I am very happy with the performance of the bike as is but wouldn't mind doing this inexpensive mod if I know that I will gain and not screw anything up. Thoughts??
 
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