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TOPIC: 83-84 GPZ 1100 cams

83-84 GPZ 1100 cams 17 Jul 2010 10:53 #383330

  • Buda
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How do I tell the intake from the exhaust cam?
One has r1 stamped on and the other has r6. Does it even mater?
Thanks
1982 KZ 1170 LTD
10.25 to 1 comp
K&N pods
GPZ cams
Vance&Hines pipe with comp baffle
dyna coils and wires
97 Valkyrie Standard

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Last edit: by Buda.

GPZ cams 17 Jul 2010 11:30 #383338

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Anybody..come on guys...help me:)
1982 KZ 1170 LTD
10.25 to 1 comp
K&N pods
GPZ cams
Vance&Hines pipe with comp baffle
dyna coils and wires
97 Valkyrie Standard

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GPZ cams 17 Jul 2010 11:46 #383343

  • otakar
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Check to see if they are identical. If one has more lift than it is the intake. If they are the same than "it just dont matter".
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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GPZ cams 17 Jul 2010 12:02 #383349

  • Buda
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Cool thanks Otto
1982 KZ 1170 LTD
10.25 to 1 comp
K&N pods
GPZ cams
Vance&Hines pipe with comp baffle
dyna coils and wires
97 Valkyrie Standard

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GPZ cams 17 Jul 2010 14:07 #383362

  • Mark Wing
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The exhaust cam should have a section on it that the tach drive gear is ground in but it's smooth with no teeth.

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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GPZ cams 17 Jul 2010 14:11 #383363

  • otakar
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My pleasure. I mix and match cams all the time. I always like a setup that has lest exhaust than intake. This will sacrifice a bit of your top end but will give you more lower and mid range torque. On my bike that i built I have two different cams of two different manufacturers. The intake is a .420 lift of 270* @.050 duration and the exhaust is a .410 lift with a 252* @.050 duration.
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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GPZ cams 17 Jul 2010 14:13 #383364

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Mark Wing wrote:

The exhaust cam should have a section on it that the tach drive gear is ground in but it's smooth with no teeth.

Mark


He is talking about GPz1100 cams and there was no tach drive on those bikes. The tach was taken off of the coil.
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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GPZ cams 17 Jul 2010 16:23 #383397

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otakar wrote:

Mark Wing wrote:

The exhaust cam should have a section on it that the tach drive gear is ground in but it's smooth with no teeth.

Mark


He is talking about GPz1100 cams and there was no tach drive on those bikes. The tach was taken off of the coil.


No I'm talking about 750 cams
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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GPZ cams 20 Jul 2010 04:15 #384046

  • larrycavan
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I'm pretty sure the tach drive boss is still on the cam, it's jut not cut into a worm gear. In fact, the photo looks like an exhaust cam.

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Last edit: by larrycavan.

GPZ cams 20 Jul 2010 05:23 #384051

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The "tach drive boss" is on moth cam shafts. weather cut or uncut. On the GPz1100 it is not cot on either cam.
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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GPZ cams 20 Jul 2010 05:26 #384052

  • otakar
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Mark Wing wrote:

otakar wrote:

Mark Wing wrote:

The exhaust cam should have a section on it that the tach drive gear is ground in but it's smooth with no teeth.

Mark


He is talking about GPz1100 cams and there was no tach drive on those bikes. The tach was taken off of the coil.


No I'm talking about 750 cams


I would not know about the 650/750 since i do not own one of those.
74 Z1-A stock
76 KZ-900 Totaly stock vice MAC pipe
77 KZ-1000A stock
78 Z1-R 100%MINT 500 original Mi.
78 Z1-R Yoshi 1103 kit stage 1 cams Yoshi pipe. Etc
79 KZ-1300 (1400)
80 KZ-1300
81 Scratch built GPz1150R
82 KZ1000

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GPZ cams 20 Jul 2010 05:59 #384054

  • larrycavan
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otakar wrote:

My pleasure. I mix and match cams all the time. I always like a setup that has lest exhaust than intake. This will sacrifice a bit of your top end but will give you more lower and mid range torque. On my bike that i built I have two different cams of two different manufacturers. The intake is a .420 lift of 270* @.050 duration and the exhaust is a .410 lift with a 252* @.050 duration.


Intake cams with that much duration work best with motors that have racing compression and/or big cubic inches.

I've seen an awful lot of bracket bikes go significantly quicker by swapping out long duration intakes for short duration.

Street use, street compression, no big block....less equal better all around performance...

JMO

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