4-1 pipe design

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11 Dec 2006 11:21 #99025 by 77KZ650
4-1 pipe design was created by 77KZ650
Just wondering how the length of the pipes before the collector affects power. I see some that are pretty short and merge into the collector as soon as they get under the bike, and on my zx, they dont merge into one untill they are back some distance from the front. are longer pipes (longer before the collector) better for higher revving motors?
Scott
07 MDP Rookie of the Year
01 ZX-12R street/drag bike. 8.97 @155.7 pump gas, dot tires, no bars, no power adders. top speed in the 1/4: 161MPH

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11 Dec 2006 12:37 #99037 by RomSpaceKnight
Replied by RomSpaceKnight on topic 4-1 pipe design
www.dansmc.com/mc_software.htm
Tuned Exhaust Pipe Length Calculator For Single/Twins/Fours.

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  • guitargeek
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  • Elitist, arrogant, intolerant, self absorbed.
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11 Dec 2006 13:51 #99054 by guitargeek
Replied by guitargeek on topic 4-1 pipe design
RomSpaceKnight wrote:

www.dansmc.com/mc_software.htm
Tuned Exhaust Pipe Length Calculator For Single/Twins/Fours.


404 Error
1980 KZ750-H1 (slightly altered)
1987 KZ1000-P6 "Ponch"
1979 GS1000 "Dadzuki"

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  • steveo_4192003
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  • 77kz650b-1
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12 Dec 2006 07:54 #99172 by steveo_4192003
Replied by steveo_4192003 on topic 4-1 pipe design
great find!!!! i just may use some of it!!
1977 kz650b-1, 4-2exhaust systetm, pod filters ,jetted 112 main, 17.5 pilot

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12 Dec 2006 12:19 #99195 by btchalice
Replied by btchalice on topic 4-1 pipe design
i tried the links but they all tried to sell me high speed internet. there was nowhere to click to get past it
Terry Meyer / Wichita KS
76 kz900 w/1000 motor TWZTD
I am not driving too fast, I'm flying too low.

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12 Dec 2006 19:54 #99254 by RomSpaceKnight
Replied by RomSpaceKnight on topic 4-1 pipe design
My apologies. I have never tried that link myself. It's just one I keep on file sent from a buddy.

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12 Dec 2006 23:10 #99265 by Mark Wing
Replied by Mark Wing on topic 4-1 pipe design
Long head pipes = low end torque, short head pipes = top end power.
Mark
Jesus loves you Everyone else thinks your an ***

77 KZ650 C1 with ZX7 forks, GPZ mono rear, wider 18 police wheels and Yoshimura motor.

Yorba Linda Cal.

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13 Dec 2006 02:55 #99272 by jimmybon
Replied by jimmybon on topic 4-1 pipe design
all sorts of issues there
header lenth?
sonic wave?
cross over pipes 1 & 2 to create swirl?
(A)vance & hines :P
74 Z1A900 original
74 Z1A900 stone replica
74Z1A900 barn find
77 Z650B1 Hybrid
81 z650 PIG camp bike
06 ZRX1200R cafe racer project
S1000xr

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