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Old 01-30-2010, 01:12 AM
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bowtiy bowtiy is offline
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Default billet cams (was: have to ask for help again... sorry)

been looking through the site for a couple hours on old threads and such... i'm wanting to switch to a roller cam, but cant find any info on if there is a direct fit even fire cam.. do i need to switch to a bolt on gear roller to do this? or is there a roller cam with the integral drive gear on it? please give me a part # would like a 212* ish cam for my build. or maybe some pro's and con's for even fire odd fire setups...
thanks again
bowtiy
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Old 01-30-2010, 02:28 AM
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Exclamation Re: have to ask for help again... sorry

Whoa. The 84-87 V6 is not an odd fire motor.

Most of the roller cams will require something to be bolted into the front to hold the cam in.

Odd fire motors have three shared crank throws. Even fire motors have six individual ones to smooth out engine shake. All the injected production TRs come as even fire. Unless you go to a Stage II setup, build a pre-mid-70s-V6, or get an odd fire crank for a production block (are these available?) you'll never need to worry about the difference.
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Last edited by Keller; 01-30-2010 at 02:30 AM.
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Old 01-30-2010, 11:08 AM
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Default Re: have to ask for help again... sorry

Quote:
Originally Posted by Keller View Post
Whoa. The 84-87 V6 is not an odd fire motor.

Most of the roller cams will require something to be bolted into the front to hold the cam in.

Odd fire motors have three shared crank throws. Even fire motors have six individual ones to smooth out engine shake. All the injected production TRs come as even fire. Unless you go to a Stage II setup, build a pre-mid-70s-V6, or get an odd fire crank for a production block (are these available?) you'll never need to worry about the difference.
i realize this, but reading about rollers and talking with TA performance im told to get a billet roller i need to ..not switch to an odd fire cam sorry shouldve been more specific... but need to get a bolt on cam gear and such wich im told is a an odd fire setup. and that is another $250 for the cam gear kit. but i found a kit through full throttle speed im gonna look into

http://www.fullthrottlespeed.com/cus...UROLLMOREL+eq+

thanks..
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Old 01-30-2010, 01:02 PM
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Exclamation Re: have to ask for help again... sorry

Note that that cam is austempered. Some prefer billet cams for rollers. Not stating one or the other is better, or that either has problems. Just that it has one distinctive difference from many others.
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Old 01-30-2010, 03:20 PM
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Default Re: have to ask for help again... sorry

Quote:
Originally Posted by Keller View Post
Note that that cam is austempered. Some prefer billet cams for rollers. Not stating one or the other is better, or that either has problems. Just that it has one distinctive difference from many others.
billet would be the best choice, but i havent seen any real info as to where billet or not really comes into play, very fast and reliable cars on cast flat tappets out there. cast roller shouldnt be a problem. and with very little spring pressures and rpm i see it being ok.. would love to hear if its not though, i am looking to do this only one time...and so far its a $400 difference between comperable kits in billet or not billet.. when you figure in the cam gear kit, and bronze cam sensor gear...
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Old 01-31-2010, 07:44 PM
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Default Re: billet cams (was: have to ask for help again... sorry)

I got my billet roller cam kit from Weber Racing
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Old 01-31-2010, 08:40 PM
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Default Re: billet cams (was: have to ask for help again... sorry)

"Cast roller" ... is bad juju ..

In the mid 90s there was a "budget" cast roller that was supposed to be the end all be all and ended up taking out a LOT of motors. Cast rollers HAVE to have the proper hardening/tempering or they WILL fail (as hundreds found out).

Be sure that whoever you get a cast cam from can back it up with FACTS about hardness and longevity.

Just sayin'
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