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BIKELAND > FORUMS > ZX-14.com > Thread: butterfly removal results NEW TOPIC NEW POLL POST REPLY
mrsantafe


Zone Head
Posts: 521
posted June 14, 2006 12:03 AM        
butterfly removal results

All right fellas here what i got,

list of mods

muzzy pipe
powercommander
butterflys removed

First i installed the supplied map that came with the pc/ muzzy map.
Second, i reasoned based on the fact at looking at the supplied map they added quite a bit of fuel at 2750-3500 range.
Third i added 10% in this area and headed to the dyno.
At the dyno the Af ratio was now around 14.2 in the area they said would read about 16.0 at 3200 rpms
Fourth, at a mile high location i find the supplied muzzy map to be rich. I removed 5% fuel from 5k to red line 100% table only to bring the af ratios in the 12.8-13.2 range.

Later this evening i post my chart as im currently at the grind.

Bottom line is the removal of the butterflies kicked a--. At 3500 rpms it now makes about 85 ft lbs of torque!! The bike runs awesome it even runs fairly strong chugging along at low rpm in 6th gear. Twist the throttle and theres a noticable difference. by the way theres no hick ups in any gear the bike runs flawless.

Lastly, i did not do a custom map yet because i simply do not trust the operators in this shitty little town of albuquerque. Next month i'll take it to arizona and get the job done right.

____________
9.78@155.13 mph 1.71 60 ft @ a near mile high dragstrip

2006 ZX14 gone
2006 ZX10r (Wifes street bike)
2004 zx10r (her race bike)
2002 ZX12 (still kicking a--)
2007 gsxr 1k (race bike)



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shawnski


Pro
Posts: 1809
posted June 14, 2006 12:17 AM        Edited By: shawnski on 14 Jun 2006 08:18
i am getting mine done on friday when i do my oil change. will let you know my feedback.
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fish_antlers


Administrator
The Truth is Out There
Posts: 21837
posted June 14, 2006 12:52 AM        
very cool.... thought... would there be an advantage to removing the shaft that the butterflies bolt to? leaving servo in place but removing shaft?
____________
What business is it of yours where I'm from, Friendo?


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zx1kr


Pro
Posts: 1301
posted June 14, 2006 01:00 AM        
I dont think there would be anything substantial by pulling the shafts. Hp & Tq increase would be negligible. But, if all you were concerned w/ was 1/4 mile times everything helps.
____________

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fastestbusaaround


Needs a life
I eat Fish...
Posts: 7889
posted June 14, 2006 02:24 AM        
Doubt that removing the shaft will make much diff...maybe ever better left in to cause some turbulence/intake pressure...like ram air?

ZX1KR -- my Busa piped, mapped & Airbox mod made 88 RWTQ SAE...timing on the 14 should get it a bit higher than that IMO...
____________
FYYFF!!!

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speedgene


Zone Head
Posts: 996
posted June 14, 2006 02:54 AM        Edited By: speedgene on 14 Jun 2006 10:55
quote:
very cool.... thought... would there be an advantage to removing the shaft that the butterflies bolt to? leaving servo in place but removing shaft?



Remove the subthrottle flies, and you are done. Touch nothing else.

Want to see what happens with the sub rod removed? Pull the sub's throttle position sensor clip off, then turn the key on. Once you hear the noise, shut it off. BE EVER SO CAREFUL removing the TPS junction clip! Bust the TPS body off the unit, and you bought a complete throttle body assembly. The 3 main electrical components on the DFI (sans the injectors/IAP sensor) unit are N/A. I suggest you leave it alone. I explained what does happen; why mess with an expensive (gear box) noise just to hear it?
You would have to set the gear box (wires) in two modes, then set the TPS (rheostat) manually as you open and close the "Main" throttle. Those are just two components (to clear codes - it gets worse) you are dealing with if the rod is removed. Would you ride pushing 2 extra levers all the time, or leave the rod in? You've been warned.



____________
E-tard

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smokinZX14


Needs a life
Posts: 10197
posted June 14, 2006 03:14 AM        
Cool.........please post up you dyno sheet after the custom map....Maybe we can us it for a base line for our bikes....I'm at sea level so it will need some fine tunning but at least we would have a place to start...
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95

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zx1kr


Pro
Posts: 1301
posted June 14, 2006 06:31 AM        
FBA , absolutely as far as timing goes. But, dont forget that you were looking at an untuned bone stock ZX14 Dyno sheet that I posted. Those #'s will go up considerably once I get the mods installed(Pipe,PC,A/C, Flies off) I will o'lay all maps will complete & post all results.
____________

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mrsantafe


Zone Head
Posts: 521
posted June 15, 2006 11:47 AM        Edited By: mrsantafe on 15 Jun 2006 19:55
Still no dyn0chart yet. I'll have a friend try and post it tommorrow.

However, take these numbers as approximate values. I attempted to plot points on my dynochart and the one of brocks stock bike(dragbike.com) for comparitive purposes.
The reason is to show what i think is mostly the butterflys removed hence i stopped at 5k.
Also my numbers are sae with a smoothing of 5. also the dyno temperature was 104 degrees with humidity of 4% Last: af ratio still not pretty: 2750 rpm 14.1,3k 13.2,3.2k12.6,3.5k13.3,4k 13.3, 4.5k 12.8, 5k 12.2



Stock numbers on left and butterfly numbers on right
torque/hp torque/hp
2500 60 25 ///// 54 25 (-6hp and same torque)
3000 52 32 ///// 76 42 (+10 hp and +24ft lb tor)
3500 57 45 ///// 84 55 (+10hp and +27 ft tor)
4000 70 52 ///// 84 63 (+11 hp and +14 ft tor)
4500 75 70 ///// 86 74 (+4 hp and +11 ft tor)
5000 85 80 ///// 90 85 (+5 hp and +5 ft tor)

All i need to do now is play around with the map a little to clean up the af ratio.
One can conclude theres strong evidence to support the removal of the butterfly valves.


____________
9.78@155.13 mph 1.71 60 ft @ a near mile high dragstrip

2006 ZX14 gone
2006 ZX10r (Wifes street bike)
2004 zx10r (her race bike)
2002 ZX12 (still kicking a--)
2007 gsxr 1k (race bike)



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fastestbusaaround


Needs a life
I eat Fish...
Posts: 7889
posted June 15, 2006 11:55 AM        Edited By: fastestbusaaround on 15 Jun 2006 19:59
Ya think? On one of my original posts about a month ago here...I said the bike should do at least 88lbs without mapping...that was just by feel from my Busa VS my 14...I believe that with mapping and timing....we'll be hitting 92 SAE RWTQ at 3500...and there's still more to suck outta this thing, before touching the motor...we haven't even started yet.

EDIT: By the way, Brocks numbers are STD so the gains are even higher...
____________
FYYFF!!!

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zxbob


Pro
Posts: 1692
posted June 15, 2006 11:57 AM        
SWEET !
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