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9.5 Dcr?

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Old 03-08-2006, 11:37 AM
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Default 9.5 Dcr?

If I'm off somewhere I can't find it. Here's what I've got.

5.3 w/ stock pistons, approx. 6cc dish.
Pistons are .010 out of the hole.
.045 head gasket.
Heads are approx. 58 cc.
I used a degree wheel and the cam is 226/232 114 lsa. It came w/ 0* ground in so I advanced it 4* and end up w/110 ICL.
I'm using stock #'s for stroke 3.622 and rod length 6.098.
Calculator says 9.5 DCR. Are my #'s off somewhere or am I just getting away w/ this?

Many thanks to jrp for the cam guide.
Old 03-08-2006, 11:59 AM
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I get 8.14... 3.779" x 3.622", right..? XE-R lobes?

Last edited by SideStep; 03-08-2006 at 02:06 PM.
Old 03-08-2006, 01:38 PM
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Originally Posted by Grey Silver
If I'm off somewhere I can't find it. Here's what I've got.

5.3 w/ stock pistons, approx. 6cc dish.
Pistons are .010 out of the hole.
.045 head gasket.
Heads are approx. 58 cc.
I used a degree wheel and the cam is 226/232 114 lsa. It came w/ 0* ground in so I advanced it 4* and end up w/110 ICL.
I'm using stock #'s for stroke 3.622 and rod length 6.098.
Calculator says 9.5 DCR. Are my #'s off somewhere or am I just getting away w/ this?

Many thanks to jrp for the cam guide.
What is your advertised intake and exhaust duration at .006?
Old 03-08-2006, 02:08 PM
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Originally Posted by cantdrv65
What is your advertised intake and exhaust duration at .006?
If he is using a XE-R cam the numbers are:

0.006 0.050 0.200
..275....226....147
..281....232....153
Old 03-08-2006, 11:57 PM
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Now I get it. If I put the duration in at .006 I get 8.13.

Thanks for the help.
Old 03-09-2006, 12:38 AM
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No problemo. I thought thats what you were trying.




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