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vwracerdave
Samba Member
Joined: November 11, 2004
Posts: 15309
Location: Deep in the 405
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 Posted: Wed Feb 21, 2018 2:23 pm Post subject: Re: Engle FK grinds for 2127cc |
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The two thing that wear out lifter bores are how high the cam lifts and valve spring pressures.
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Dan Ruddock
Samba Member
Joined: October 25, 2012
Posts: 3594
Location: Sarasota, in my adopted state of Florida
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| Posted: Wed Feb 21, 2018 2:24 pm Post subject: Re: Engle FK grinds for 2127cc |
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| pondervwmike wrote: |
So its rough on opening and closing the valves. I think i get it now. I didnt understand what you meant when you said it was a hammer/slammer cam. Now it makes sense. Thanks Dan for your information it is very helpful.
Mike |
Yep
I am big fan of all the web 86 grinds and possibly jpm raptor grinds based off of what knowledgeable people have said and what the ads say. Costly stuff.
The old FK stuff is also good but I am not a fan of the newer FK4x stuff.
Dan |
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jpaull
Samba Member
Joined: February 22, 2005
Posts: 3466
Location: Paradise, Ca
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| Posted: Wed Feb 21, 2018 2:25 pm Post subject: Re: Engle FK grinds for 2127cc |
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Mike,
I would email CB Tech with all your combo specs and see what they recommend.
I trust Pats recommendation as he has installed/dynod/supported a zillion cams.
Dan, your only experience with this grind is when you plotted 3% of the grind and sent it back to CB. Alstrup and Modock raised good points about your "findings" in your 2292 thread.
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Dan Ruddock
Samba Member
Joined: October 25, 2012
Posts: 3594
Location: Sarasota, in my adopted state of Florida
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| Posted: Wed Feb 21, 2018 2:28 pm Post subject: Re: Engle FK grinds for 2127cc |
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| vwracerdave wrote: |
| The two thing that wear out lifter bores are how high the cam lifts and valve spring pressures. |
And cams with steep ramp angles. Like the engle VZ cams. They push the lifter heavily sideways into the lifter bore.
Last edited by Dan Ruddock on Wed Feb 21, 2018 2:31 pm; edited 1 time in total |
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Dan Ruddock
Samba Member
Joined: October 25, 2012
Posts: 3594
Location: Sarasota, in my adopted state of Florida
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| Posted: Wed Feb 21, 2018 2:29 pm Post subject: Re: Engle FK grinds for 2127cc |
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| jpaull wrote: |
Mike,
I would email CB Tech with all your combo specs and see what they recommend.
I trust Pats recommendation as he has installed/dynod/supported a zillion cams.
Dan, your only experience with this grind is when you plotted 3% of the grind and sent it back to CB. Alstrup and Modock raised good points about your "findings" in your 2292 thread. |
Like what? And the other 97% is very good but that 3% is very important unless you like a noisy engine, I don't. |
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modok
Samba Member
Joined: October 30, 2009
Posts: 26790
Location: Colorado Springs
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| Posted: Wed Feb 21, 2018 5:47 pm Post subject: Re: Engle FK grinds for 2127cc |
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I don't want to BASh anybody, but
Buying Web camshafts, you get 100% of the cam lobes, 100% of the time. |
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fivelugshortaxle
Samba Member
Joined: May 13, 2011
Posts: 4254
Location: Aumsville, Oregon
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| Posted: Mon Dec 16, 2019 1:16 am Post subject: Re: Engle FK grinds for 2127cc |
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Ever decide on the cam? I say go with a Steve Long cam also. And SLR XR310 on a 106 lobe. About like a W125, FK10. Easier on the valve train. Quiet. Makes big power. 310 adv dur... [email protected] .558 inch lift as measured with my 1.4 rockers.
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