pushrod lift?

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Jan 17, 2009 | 08:27 PM

Green3spd

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From: Little Rock, Ar

pushrod lift?

How would u figure up lift if i went to a 7.200 to a 7.400??

Jan 17, 2009 | 08:51 PM

96capricemgr

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Same formula you use to detemine displacement from longer connecting rods.

Jan 17, 2009 | 10:35 PM

speed_demon24

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From: Ocala, FL

Quote:

Originally Posted by 96capricemgr

Same formula you use to detemine displacement from longer connecting rods.

Jan 18, 2009 | 12:53 AM

fergymoto

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From: Rock Hill, SC

Quote:

Same formula you use to detemine displacement from longer connecting rods.

LOL nice.

Just to clear that up, in other words increasing pushrod length does not have any effect on the amount of lift.

Jan 18, 2009 | 07:33 AM

shbox

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From: Little Rock, AR

Pushrod length is adjusted for correcting geometry, not for factoring lift.

Jan 18, 2009 | 09:49 AM

RoAdRaGe912

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Quote:

Originally Posted by 96capricemgr

Same formula you use to detemine displacement from longer connecting rods.

Jan 18, 2009 | 10:08 AM

Elliott's94Z

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From: Oregon Grown

Quote:

Originally Posted by shbox

Pushrod length is adjusted for correcting geometry, not for factoring lift.

Exactly

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Jan 18, 2009 | 02:49 PM

krill

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From: Sweden

Quote:

Originally Posted by fergymoto

LOL nice.

Just to clear that up, in other words increasing pushrod length does not have any effect on the amount of lift.

Like he said, the lift wont change.

Jan 18, 2009 | 03:58 PM

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blackz93

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From: nc

But, geometry does affect lift.

Albeit minimal.

Jan 18, 2009 | 05:13 PM

#11

fergymoto

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From: Rock Hill, SC

But when the geometry is right on every setup like it should be this doesn't even come into play

Jan 18, 2009 | 09:28 PM

#12

Green3spd

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From: Little Rock, Ar

ok.. then ill forget about it.. lol

Jan 18, 2009 | 10:18 PM

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Elliott's94Z

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From: Oregon Grown

Quote:

Originally Posted by Green3spd

ok.. then ill forget about it.. lol

Yeah just leave them alone unless you do heads/cam swap

Jan 18, 2009 | 10:21 PM

#14

Green3spd

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From: Little Rock, Ar

Quote:

Originally Posted by Elliott's94Z

Yeah just leave them alone unless you do heads/cam swap

Well I did a cam swap..

Jan 18, 2009 | 10:33 PM

#15

JB_97ws6TA

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if you left the heads alone you should be fine with 7.2 if you had the heads milled or changed valves with a different height or went with a thinner heads gasket you will have to check your geometry

Jan 18, 2009 | 10:56 PM

#16

the_merv

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From: The Beach...

Yea if you have the Geometry off you will have problems. All you are doing with a longer/shorter Pushrod is changing the angle of the Rocker on the Valve. You are still moving it the same distance.

Quote:

Originally Posted by 96capricemgr

Same formula you use to detemine displacement from longer connecting rods.

Jan 18, 2009 | 11:12 PM

#17

Green3spd

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From: Little Rock, Ar

Quote:

Originally Posted by JB_97ws6TA

if you left the heads alone you should be fine with 7.2 if you had the heads milled or changed valves with a different height or went with a thinner heads gasket you will have to check your geometry

Thanks.. thats exactly the defintion I needed..