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Old Jun 12, 2010 | 06:21 PM
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just got a free cam from a buddy what do you guys think?

244/238 612/605 116lsa


5.3
stock 317 heads
ls6 intake
mpt70 .96 ar

I may upgrade later to 6.0
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Old Jun 12, 2010 | 06:23 PM
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usually you like to have a turbo cam be either split even, or favoring the exhaust a couple points.
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Old Jun 12, 2010 | 06:25 PM
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I was thinking the same thing
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Old Jun 12, 2010 | 06:30 PM
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Mine is a reverse split, speced by Virginia Speed. Looks like a good cam for a 408+ ci engine. I think it is too big for a 5.3L.
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Old Jun 12, 2010 | 06:33 PM
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what about a nice 370
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Old Jun 12, 2010 | 06:47 PM
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That would be a better choice for it, maybe the smallest ci I would put it in. Mine is in the 230 range with a reverse split.
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Old Jun 12, 2010 | 06:53 PM
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Originally Posted by XtremeDime
usually you like to have a turbo cam be either split even, or favoring the exhaust a couple points.
that would depend on the application.
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Old Jun 12, 2010 | 06:54 PM
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Originally Posted by TX RED
just got a free cam from a buddy what do you guys think?

244/238 612/605 116lsa


5.3
stock 317 heads
ls6 intake
mpt70 .96 ar

I may upgrade later to 6.0


that cam is way to big for that application-you need something in the 22x range.
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Old Jun 12, 2010 | 06:56 PM
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Listen to Shawn, he knows his sheat.
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Old Jun 12, 2010 | 06:58 PM
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I would go with a 224/230 and something in the .570-.590 lift on a combo like that. Like a 112 LSA.
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Old Jun 12, 2010 | 07:05 PM
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You need to call shawn and get one of his reverse splits. He spec's the cams for all of our big motors(Veee8, Fireball, myself, and a bunch of other guys).
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Old Jun 12, 2010 | 07:06 PM
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Originally Posted by 98Z28CobraKiller
I would go with a 224/230 and something in the .570-.590 lift on a combo like that. Like a 112 LSA.
Having tried a cam like that in an older motor, you may be surprised at the gains that can be had on your combo if thats the type of cam your running.
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Old Jun 12, 2010 | 07:17 PM
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Originally Posted by Shawn @ VA Speed
that would depend on the application.
Would you ever recommend a cam that favors intake on an FI application? Im not trying to challenge you or anything either, Im just curious.
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Old Jun 12, 2010 | 07:20 PM
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Originally Posted by Phil99vette
Having tried a cam like that in an older motor, you may be surprised at the gains that can be had on your combo if thats the type of cam your running.
The numbers I provided are based on stock 317 heads and a biggish exhaust housing on the turbo for the cubes. My cam has no split but my heads flow alot better exh, I have more cubes and pretty much the same size exh housing. I have been thinking about trying a reverse split for mine as I think I am seeing high back pressure. Then I think that maybe I'll just buy another PT88. JK.Right know, I'm just waiting to get my AEM computer and maybe some bigger injectors to try my hand at some E85. Less heat should mean less pressure, right?
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Old Jun 12, 2010 | 07:23 PM
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Originally Posted by 98Z28CobraKiller
The numbers I provided are based on stock 317 heads and a biggish exhaust housing on the turbo for the cubes. My cam has no split but my heads flow alot better exh, I have more cubes and pretty much the same size exh housing. I have been thinking about trying a reverse split for mine as I think I am seeing high back pressure. Then I think that maybe I'll just buy another PT88. JK.Right know, I'm just waiting to get my AEM computer and maybe some bigger injectors to try my hand at some E85. Less heat should mean less pressure, right?
If its a biggish exhaust housing, why spec a cam that will loose cranking compression and be hard to spool?
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Old Jun 12, 2010 | 07:34 PM
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ya i think its alittle big myself and as for the rev slip usually with less flowing exhaust when you get to bigger flowing less restrictive flowing exhaust you can do more of a dual pattern i had good sucess with lloyd elliot (nighttrain66@msn.com) and comp cams myself on a great cam cammotion seemed to set me up with a huge cam but messed up duration i would have been bleeding soo much boost out the exhaust so keep in mind email him the price is great fast and tech support unbelievable he helped me for weeks everyday i had questions and so on for free before i purchased
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Old Jun 12, 2010 | 07:36 PM
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Would this cam make no power on a 5.3
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Old Jun 12, 2010 | 07:53 PM
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Originally Posted by Phil99vette
If its a biggish exhaust housing, why spec a cam that will loose cranking compression and be hard to spool?
What I mentioned will still have plenty of cranking compression and overlap. The split toward the exhaust is to increase exh pressure vs the heavy flow bias to the intake side on the stock heads.
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Old Jun 12, 2010 | 10:28 PM
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Would this cam make any power on a 5.3
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Old Jun 13, 2010 | 12:39 AM
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i think its too big and would be out of your power band not worth it spend the money where you can efficiently make good power to redline
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