New valve buckets.
Re: Buckets
QUOTE
Originally posted by T-Rex
I would stay away from the Z400 buckets just because I have a freind that has one and within 10 hours of use one of the exhaust buckets started showing ware in the center where the cam lobe contacts. Also remember that the Z400 is a single valve spring set up and the rev limiter is set at 7800rpm.
The busa sounds like a much better idea.....
I would stay away from the Z400 buckets just because I have a freind that has one and within 10 hours of use one of the exhaust buckets started showing ware in the center where the cam lobe contacts. Also remember that the Z400 is a single valve spring set up and the rev limiter is set at 7800rpm.
The busa sounds like a much better idea.....
The busa and z400 valve buckets are the same part number.
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The wear in center of bucket is from the valves floating.I am not concerned about our stock buckets since any that were wore it was from valve float.I agree also that just because they work in a Z400 or even a Hayabusa doesnt mean they will work in ours.Since whole valvetrain is different.
The cams however we dont have a firm number as far as hardness required.Need to check both buckets and cams since hardness of one deterimines hardness of other.You would not want both to be the same hardness.
The cams however we dont have a firm number as far as hardness required.Need to check both buckets and cams since hardness of one deterimines hardness of other.You would not want both to be the same hardness.
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We are thinking stock buckets are hardchrome plated.According to the heatreat guy Timbo works with(also cryo's the crankpins)cryo wont help the wear seen on cams and buckets.
This isnt a huge problem since there are known causes of failures.Really I think those should be corrected and then see if stock cams last.I think most will.Only clincher in there is if some of the stock cams werent hardened correctly.It looks like there may be some out there that arent hardened right.
This isnt a huge problem since there are known causes of failures.Really I think those should be corrected and then see if stock cams last.I think most will.Only clincher in there is if some of the stock cams werent hardened correctly.It looks like there may be some out there that arent hardened right.
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This is what I am going to try when I get my engine tore down and updated with Timbo's stroker crank. I am going to dry film coat both the intake and exhaust cams.
Also Craycraft racing has been using a hard face coatings on the Raptor rocker arms because of wear and they have been having good luck with it.
Also Craycraft racing has been using a hard face coatings on the Raptor rocker arms because of wear and they have been having good luck with it.