[Fot] Roller life

[Bill Babcock]

I assume you mean flat tappets, or are you just asking about solid  
versus hydraulic lifters?

If you mean flat tappets I don't think it will work very well. Roller  
cams ground for roller lifters take advantage of the tight curve of  
the roller to move the lifter quickly at the beginning of the opening  
cycle. You need more ramp with a flat tappet. I think you'd have  
serious wear problems. Might get away with using a ceramic lifter.

If you mean using solid vs. Hydraulics, then it depends again on how  
the cam was ground. Some cams are ground with a really radical  
initial ramp expecting the excessive acceleration to be taken up by  
the hydraulic lifter.

Why would you want to use a roller cam with flat lifters
Bill Babcock
billb at bnj.com
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On May 7, 2007, at 3:20 PM, Jim Cun wrote:

> G'day guys,
>           Wanted to find out opinions on using solid lifters and a  
> roller cam?
>
> Jim
>
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