Vance & Hines on a 1974 z1a

  • iboone
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04 Aug 2009 16:41 #311575 by iboone
Vance & Hines on a 1974 z1a was created by iboone
Does anyone know if i can take the packing outof the baffle on my new vance & hines and run it without causing any damage to my valves or engine? I have a stock breather with a k&n filter and I jetted up to 117.5 on the mains also I adjusted the air screws to onr turn out. I took the fiberglass out of the pipe and I like the sound and believe it has more power this way.

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04 Aug 2009 17:23 #311586 by keith1
Replied by keith1 on topic Vance & Hines on a 1974 z1a
if it runs good and you feel no ill effects....good to go...
if you hear a lot of popping on decell, some could be from a lean condition....you will get a little popping if running no baffle.....i would definitely keep an eye on the plugs for a while after doing what you are doing...they are a great indicator of whats going on inside...also make sure your valves are in spec as far as adjustment.....

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05 Aug 2009 11:07 #311774 by TerryK
Replied by TerryK on topic Vance & Hines on a 1974 z1a
You shouldn't have a problem, except I can't see why you would want to make a great sounding pipe loud and raspy. Besides, you'll probably lose some horsepower and torque without the packing. I know it feels like it has more power, but it's probably just the loud pipe making it seem so.
1977 KZ1000
GSXR swingarm and rear brake
WM6 rear Akront rim
Wiseco 1075c pistons
33 smoothbores
stage 3 Web Cams
Head porting
Dyna S ignition
Lockhart oil cooler
Wiseco header



1980 Z1R drag bike
1200cc
38 Flatslides, .
500' cams
7" slick
Dyan 4000 SP ignition
etc

Ontario, Canada

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05 Aug 2009 17:00 #311837 by iboone
Replied by iboone on topic Vance & Hines on a 1974 z1a
I put the packing back because the plugs looked too lean but it still sounds pretty good.

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06 Aug 2009 05:57 #311955 by fastestz1
Replied by fastestz1 on topic Vance & Hines on a 1974 z1a
you know they have a street/strip baffle that sounds AWESOME for those pipes

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06 Aug 2009 09:39 #312003 by Patton
Replied by Patton on topic Vance & Hines on a 1974 z1a
For comparison

550
1973 Z1
KZ900 LTD
Attachments:

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06 Aug 2009 09:41 #312004 by Patton
Replied by Patton on topic Vance & Hines on a 1974 z1a
Other end

550
1973 Z1
KZ900 LTD
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06 Aug 2009 09:43 #312005 by Patton
Replied by Patton on topic Vance & Hines on a 1974 z1a
Side view with packing

550



Good Luck! :)
1973 Z1
KZ900 LTD
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06 Aug 2009 14:25 #312050 by iboone
Replied by iboone on topic Vance & Hines on a 1974 z1a
where did you get it and how much dothey cost?

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06 Aug 2009 15:33 #312060 by Patton
Replied by Patton on topic Vance & Hines on a 1974 z1a
Listed at Redline for $35. :)

Click here > redlinecycle.com/Exhaust%20-%20V&H%20Baffle.html

Good Luck! :)
1973 Z1
KZ900 LTD

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06 Aug 2009 21:34 #312136 by nads.com
Replied by nads.com on topic Vance & Hines on a 1974 z1a
that pipe on the left is way too small and will hurt the high rpm power in a big way, ive used four pipes that size and it still chokes off the motor big time.

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