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Badvert65
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 7:13 am 
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Turbo EFI
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Car Model: 1965 Plymouth Belvedere I
Does anyone have the specs of the STX-21 cam?

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slantzilla
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 8:54 am 
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Does anyone have the specs of the STX-21 cam?
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Greg Ondayko
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 11:24 am 
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Supercharged
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272° @ 0.050" is some pretty serious stuff with over 1/2" lift. Effectively Larger than my Ruster cam.

Cool Stuff.

I am guessing it's a flat tappett, not a roller Lobe/ Lifter, correct?

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Rick Covalt
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 1:28 pm 
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Go big or go home! Go Stan Go!!!! :D :D

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slantzilla
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 1:35 pm 
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I've got a couple Mike cams that are over .600" net.

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Greg Ondayko
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 4:28 pm 
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I am not certain that the lift is the biggest player.

It of course helps but I think the lobe profile/rate and lobe timing to the position of the piston in the cylinder have a large impact on things too.

Greg

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Rick Covalt
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 4:42 pm 
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272° @ 0.050" is some pretty serious stuff with over 1/2" lift.
Mine in the car now is 270 degree @ .050 and .570 lift. Most lift above .500 is just a "valve spring test" :D :D

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slantzilla
 Post subject: Re: 1972 Dodge Colt
PostPosted: Fri Feb 09, 2024 9:39 pm 
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Anything under .550" is a lawn mower cam
:mrgreen:

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hyper_pak
 Post subject: Re: 1972 Dodge Colt
PostPosted: Sat Feb 10, 2024 6:17 am 
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Triple Duece Weber
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Joined: Tue Nov 23, 2004 6:05 pm
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Location: Desoto Texas
Car Model: 1972 Dodge Colt
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Anything under .550" is a lawn mower cam
:mrgreen:
THERE IS MY ZILLA!!!!!!!!!


Attachments:
Cam Card STX-21 s.JPG
Cam Card STX-21 s.JPG [ 55.07 KiB | Viewed 286 times ]

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Team Green
 Post subject: Re: 1972 Dodge Colt
PostPosted: Sat Feb 10, 2024 11:54 am 
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I thought you were not going to build another street engine.
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slantzilla
 Post subject: Re: 1972 Dodge Colt
PostPosted: Sat Feb 10, 2024 12:11 pm 
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I thought you were not going to build another street engine.
OUCH! :oops:

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Rick Covalt
 Post subject: Re: 1972 Dodge Colt
PostPosted: Sat Feb 10, 2024 12:23 pm 
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Quote:
I thought you were not going to build another street engine.
Mark That is too funny!! :D :D But I do have to say that I am driving my car on the road with about that same cam!! :D

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hyper_pak
 Post subject: Re: 1972 Dodge Colt
PostPosted: Sat Feb 10, 2024 5:15 pm 
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Triple Duece Weber
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Location: Desoto Texas
Car Model: 1972 Dodge Colt
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I thought you were not going to build another street engine.
Zilla Junior!
And the hits keep coming!

Gary said this was a good one.

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Team Green
 Post subject: Re: 1972 Dodge Colt
PostPosted: Tue Feb 13, 2024 6:19 pm 
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What a compliment as long as Slantzilla is not offended. I will wear this name as a badge of honor!

Jr.
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Greg Ondayko
 Post subject: Re: 1972 Dodge Colt
PostPosted: Wed Feb 14, 2024 1:53 am 
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:D :D

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