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Vacuum issue with this cam?

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Old 02-21-2013, 11:20 AM
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Default Vacuum issue with this cam?

Im building a 370CI and EPS suggested this cam 236/248 615/615 110LSA.
Then talked to another guy and he said that cam would not produce enough Vacuum on a Fuel injected Car. I Would like to run this cam if possible. So i have two professionals telling me two different things. Can some of you guys help?
Old 02-21-2013, 03:23 PM
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come on guys i know someone can help me
Old 02-21-2013, 03:28 PM
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Trex is 243/249...or at least mine was...and people run them all the timein stock cube 346 ls1's. You'll be fine.
Old 02-21-2013, 03:28 PM
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I don't see anything wrong with that cam. It does have a low lsa at 110 but a good dyno tune will take care of that. Might just have to increase your idle rpms a bit..no big deal though.
Old 02-21-2013, 04:18 PM
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It certainly won't drive perfect even with a spot on tune - it'll buck like crazy in gear at lower RPM, but you should still have brakes.
Old 02-21-2013, 04:22 PM
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Hell even if not add a vacuum pump. I have a feeling im going to need one
Old 02-22-2013, 01:48 AM
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Originally Posted by JakeFusion™
It certainly won't drive perfect even with a spot on tune - it'll buck like crazy in gear at lower RPM, but you should still have brakes.
Tat would depend on the intake used.
Old 02-22-2013, 02:32 AM
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Originally Posted by blackws620
Im building a 370CI and EPS suggested this cam 236/248 615/615 110LSA.
Then talked to another guy and he said that cam would not produce enough Vacuum on a Fuel injected Car. I Would like to run this cam if possible. So i have two professionals telling me two different things. Can some of you guys help?
The LOBE TYPE(faster=more vacuum) and COMPRESSION RATIO(higher=more vacuum) will make a difference here, but generally speaking EPS is correct, that cam will work fine. In fact, I suspect around 65kpa vacuum.
Old 02-22-2013, 11:01 AM
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Awesome thx guys. So as long as I have a good tune driability won't be stick obviously but tolerable for a weekend warrior car.



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