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06-17-2009, 01:08 PM
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#21
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Are you sure the compressed thickness on the head gasket is.061? I'm trying to find one that thick but can't. Do you have the P/N of the gasket you're running?
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06-17-2009, 01:08 PM
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#22
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Senior Member
Join Date: Mar 2008
Posts: 209
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Stop being a cheap bastard and by the tool: All of $4.95 at Summit.
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06-17-2009, 01:11 PM
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#23
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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06-17-2009, 01:17 PM
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#24
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by big_G
Stop being a cheap bastard and by the tool: All of $4.95 at Summit. . .
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I don't think you realize just how cheap he is. He once had me weld something . . . have you seen me weld.
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06-17-2009, 03:59 PM
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#25
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Super Moderator
Join Date: Dec 2007
Posts: 6,850
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So does 140psi with a 110 lsa sound about right?
__________________
I <3 forced induction.
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06-17-2009, 04:02 PM
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#26
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by Vettezuki
I meant when the engine is running. Or is it like this
Engine off, turning manually, the pressure in the cylinder is "cranking pressure."
Engine running, the pressure in the cylinder is "cylinder pressure."
enkei's motor is boosted, 15psi I think.
Que?
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Cranking pressure is "starter" speed cylinder pressure.
__________________
64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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06-17-2009, 04:04 PM
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#27
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Quote:
Originally Posted by enkeivette
So does 140psi with a 110 lsa sound about right?
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With the cam timing you have it sounds about right to me. I'm at 150-155 with the Cobra with 9.2:1 compression and a less agressive cam.
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06-17-2009, 04:05 PM
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#28
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by enkeivette
So does 140psi with a 110 lsa sound about right?
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By the way, since your FI, how do you factor boost into cranking pressure? After all, when you're jamming air in cylinders, it must be quite a bit higher right . . . Or am I mixing up terms.
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06-17-2009, 04:09 PM
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#29
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Quote:
Originally Posted by Vettezuki
By the way, since your FI, how do you factor boost into cranking pressure? After all, when you're jamming air in cylinders, it must be quite a bit higher right . . . Or am I mixing up terms.
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There isn't any boost.
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06-17-2009, 04:11 PM
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#30
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by BRUTAL64
Cranking pressure is "starter" speed cylinder pressure.
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Ok, that makes sense. Hence the no boost.
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