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post #1 of 7 (permalink) Old 02-02-2008, 10:13 AM Thread Starter
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Crower Cam question..

Im thinking in upgrading my PI cams and looked at some crowers with the following specs:

Lobe Lift @ .050": .345" Intake / .340" Exhaust

Advertised Lift: .621" Intake / .612 Exhaust

Duration @ .050": 232 Intake / 228 Exhaust

Advertised Duration: 278 Intake / 274 Exhaust

Recommended Springs per Crower: 68196

Lobe Separation: 114*


What do you guys think? Is it to much to put with the air blowers???


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post #2 of 7 (permalink) Old 02-02-2008, 10:36 AM
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You sure it's not 228° intake, 232° exhaust? That would make them grind 62805-2




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post #3 of 7 (permalink) Old 02-02-2008, 10:39 AM Thread Starter
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According to the guy cams are 62805-2, but he put does specs.. So it must be a typo?


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post #4 of 7 (permalink) Old 02-02-2008, 11:22 AM
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He gave you duration at the lobe, specs at the valve are 246° intake, 250° exhaust. This is labeled as a "race grind", and for good reason.

Turbos like wide LSAs and less exhaust duration to keep the pressure up. I'd run a 234/230 on 116 LSA.




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post #5 of 7 (permalink) Old 02-02-2008, 01:20 PM
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with a mod motor 114 and wider lsa is a ok cam for turbo what you dont want is a cam with say a 112 lsa, So yeah that cam should be ok and do upgrade the valve springs

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post #6 of 7 (permalink) Old 02-03-2008, 09:27 AM
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Quote:
Originally Posted by twin turbo 281 View Post
with a mod motor 114 and wider lsa is a ok cam for turbo what you dont want is a cam with say a 112 lsa, So yeah that cam should be ok and do upgrade the valve springs
this man speaks from experience.

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post #7 of 7 (permalink) Old 02-03-2008, 06:05 PM
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with broken valve springs yes haha

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48 Gmc Detroit diesel 453t twin sticked
45 Chevy 451 detroit twin sticked
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Last edited by twin turbo 281; 02-04-2008 at 04:25 AM.
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