TOPIC:

Web makes a cam set for the stock KZ1100-A engine which requires no head or piston modification, and utilizes the stock shim-on-top buckets. Would just need adjustable cam sprockets, and perform the cam degree setup procedure.

Has anyone used the Web camshaft set I'm referring to, and have some advice to offer?
Would making this cam change adversely affect engine longevity, and create additional tuning difficulties?

Camshaft comparison per Web:

Web #118: Lift .365/.365 Duration 246

Stock oem: Lift .338/.338 Duration 239

At what lift do you set the stock cams ?? 0.50"

larslykkegaard wrote: At what lift do you set the stock cams ?? 0.50"

The lift is not adjustable, it is determined by the height of the lobe and represents how far it will open the valves. The .050 is a standard gap for comparison purposes only. The actual valve lash needs to be within the factory specified range for your particular model.

ohh yes i know that - but some brands are given at 0.30 - 0,40 - 0.50 so was just wondering how the stock cams where meassured -> at what lift

larslykkegaard wrote: ohh yes i know that - but some brands are given at 0.30 - 0,40 - 0.50 so was just wondering how the stock cams where meassured -> at what lift

You mean at what lift and clearance to set for degreeing.
When degreeing, the lift and clearance set by a manufacturer is only there to ensure that the cam is off the base circle and on the ramp for consistent readable results and to enable the cam maker to specify the cams duration etc at those figures.
That is why a cam maker will usually specify the same clearance or lift throughout their entire range for comparability.
In reality as long as you know the cams timing figures it does not really matter what lift and clearance you use as long as you use the same lift and clearance throughout the degreeing process.
The std cams are on average set at 110 degrees and using the lobe centre method you should get the same result no matter what lift or clearance you use as long as you are on the ramp to accurately determine the point of lifting ,closing and it's degree figure.
You can even set the clearance at a minus figure so that the cam never leaves the follower and there will not be a delay between the cam coming onto the ramp from the base circle.

Well spoken -thanks

zed1015 wrote:

larslykkegaard wrote: ohh yes i know that - but some brands are given at 0.30 - 0,40 - 0.50 so was just wondering how the stock cams where meassured -> at what lift

You mean at what lift and clearance to set for degreeing.
When degreeing, the lift and clearance set by a manufacturer is only there to ensure that the cam is off the base circle and on the ramp for consistent readable results and to enable the cam maker to specify the cams duration etc at those figures.
That is why a cam maker will usually specify the same clearance or lift throughout their entire range for comparability.
In reality as long as you know the cams timing figures it does not really matter what lift and clearance you use as long as you use the same lift and clearance throughout the degreeing process.
The std cams are on average set at 110 degrees and using the lobe centre method you should get the same result no matter what lift or clearance you use as long as you are on the ramp to accurately determine the point of lifting ,closing and it's degree figure.
You can even set the clearance at a minus figure so that the cam never leaves the follower and there will not be a delay between the cam coming onto the ramp from the base circle.

larslykkegaard wrote: Well spoken -thanks

zed1015 wrote:

larslykkegaard wrote: ohh yes i know that - but some brands are given at 0.30 - 0,40 - 0.50 so was just wondering how the stock cams where meassured -> at what lift

You mean at what lift and clearance to set for degreeing.
When degreeing, the lift and clearance set by a manufacturer is only there to ensure that the cam is off the base circle and on the ramp for consistent readable results and to enable the cam maker to specify the cams duration etc at those figures.
That is why a cam maker will usually specify the same clearance or lift throughout their entire range for comparability.
In reality as long as you know the cams timing figures it does not really matter what lift and clearance you use as long as you use the same lift and clearance throughout the degreeing process.
The std cams are on average set at 110 degrees and using the lobe centre method you should get the same result no matter what lift or clearance you use as long as you are on the ramp to accurately determine the point of lifting ,closing and it's degree figure.
You can even set the clearance at a minus figure so that the cam never leaves the follower and there will not be a delay between the cam coming onto the ramp from the base circle.

Original post from daveo-blivious to what a Bathtub head and GPZ cams were...back then
Faster-quicker now, thanks to zed1015, and others who know what they are talking about.