Drooze & Teuton

[Andrew Hill]

Originally Posted by Chris "drooze" Wertman

Nope....no kaboom.

Nothing other than getting ready and finishing my house.

Just havent had a computer around, they dont react well to drywall dust and wood chips.

We got a driver.....a 2 time world Champ

Came out of "retirment" to race for us ..... actually Hiatus is more like it.

Stand up guy......

Keith Lynch?

[novassdude]

As far as the rule on rocker ratio. I think what the HRA’S need to do is measure the valve lift at the rocker. Measure the lift at the cam. Do the math if the ratio is correct or under they are legal. If it is over they are out. No matter what it says on the rocker.

[Alex Denysenko]

I have a question?

What if the rockers are under spec?

We all know that there isn't a factory rocker arm that comes close to spec out of the box so what if your 1.6 ratio factory rockers come up 1.54 or 1.5 rockers are 1.46 etc?

Should you be bounced then also?

[Mike Pearson]

Originally Posted by Alex Denysenko

I have a question?

What if the rockers are under spec?

We all know that there isn't a factory rocker arm that comes close to spec out of the box so what if your 1.6 ratio factory rockers come up 1.54 or 1.5 rockers are 1.46 etc?

Should you be bounced then also?

I got bounced once for an intake valve being to small by .001 No tollerance given there.

[Paul Precht]

Originally Posted by Mike Pearson

I got bounced once for an intake valve being to small by .001 No tollerance given there.

I thought there was a + or - .005" tolerance on valves unless the rule was changed, Paul.

[X-TECH MAN]

Originally Posted by Paul Precht

I thought there was a + or - .005" tolerance on valves unless the rule was changed, Paul.

Last time I looked the rule was + .001/ - .005. This rule came about due to the 426 Hemis having a problem with the valves clipping each other in S/S with the high lift cams. Dave Wren was bounced at Gainesville when I worked for NHRA in 1974 because of this. His valves were several thou undesized for clearance.

[novassdude]

Originally Posted by Alex Denysenko

I have a question?

What if the rockers are under spec?

We all know that there isn't a factory rocker arm that comes close to spec out of the box so what if your 1.6 ratio factory rockers come up 1.54 or 1.5 rockers are 1.46 etc?

Should you be bounced then also?

Alex in my senario you would be fine with a 1.54 ratio when it calls for a 1.5. From what I understand from the earlier thread you can make up for the rocker with the cam lift. My guess is that is fine as there is probably no advantage to having a lesser ratio.

[X-TECH MAN]

Originally Posted by Alex Denysenko

I have a question?

What if the rockers are under spec?

We all know that there isn't a factory rocker arm that comes close to spec out of the box so what if your 1.6 ratio factory rockers come up 1.54 or 1.5 rockers are 1.46 etc?

Should you be bounced then also?

No......That is legal for stock. Anything goes in S/S.

[Alan Roehrich]

Originally Posted by Alex Denysenko

I have a question?

What if the rockers are under spec?

We all know that there isn't a factory rocker arm that comes close to spec out of the box so what if your 1.6 ratio factory rockers come up 1.54 or 1.5 rockers are 1.46 etc?

Should you be bounced then also?

Alex, if you read the posts by Travis Miller in the thread I linked above, you'll see that the ratio spec given is the maximum ratio allowed, and if you have less than the maximum ratio, you're fine, and you can make it up with lift at the cam lobe. If the spec is 1.6:1, and you have 1.61:1, you're illegal, but if the spec is 1.6:1 and you have 1.52:1, you're fine. You just cannot exceed the maximum allowed ratio.

[X-TECH MAN]

Originally Posted by Alan Roehrich

Alex, if you read the posts by Travis Miller in the thread I linked above, you'll see that the ratio spec given is the maximum ratio allowed, and if you have less than the maximum ratio, you're fine, and you can make it up with lift at the cam lobe. If the spec is 1.6:1, and you have 1.61:1, you're illegal, but if the spec is 1.6:1 and you have 1.52:1, you're fine. You just cannot exceed the maximum allowed ratio.

Thats what I said.....lol.