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cycledog
 Post subject: Rocker Ratio
PostPosted: Fri May 30, 2003 8:37 pm 
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What is the determining factor if you need (want) 1.5 or 1.6 ratio rockers?

Thanks,
C-dog

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slantzilla
 Post subject:
PostPosted: Sat May 31, 2003 4:50 am 
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How much money you have to spend. :shock:

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cycledog
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PostPosted: Sat May 31, 2003 9:10 am 
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Mr. Zilla,

I am seriously looking at the roller tip rockers the Cox bros. have. I am not sure which ratio, or does it make a differnce?

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slantzilla
 Post subject:
PostPosted: Sat May 31, 2003 3:03 pm 
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Those rockers are good for a drag race motor, but I had a set I tried to run on the street and they did not oil the valve stems enough. :shock:

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cycledog
 Post subject:
PostPosted: Sat May 31, 2003 4:05 pm 
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Thanks, thats a bad thing......

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Doc
 Post subject: Roller Rocker Oiling
PostPosted: Mon Jun 02, 2003 10:09 am 
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Thanks, thats a bad thing......
Yes, no oil to the valve tips is trouble.
I put a spray bar into my valvecover to keep the roller tips oiled on my race engine.
http://www.dutra.org/pictures/engine/pa ... -oiler.jpg

Truth is that the factory rocker arms are good for most performance Slants so spend your money somewhere else.
DD


Last edited by Doc on Mon Jun 02, 2003 6:03 pm, edited 1 time in total.

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cycledog
 Post subject:
PostPosted: Mon Jun 02, 2003 5:35 pm 
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Doc,
Thanks for the sage advice on the rollers, I will take it.

That valve cover brings back bad memories of Y-block F**ds, if you ever had one ya know what I mean, overhead oilers or no oil, it didn't matter they were better off fried.


C-dog

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Dartvader
 Post subject:
PostPosted: Wed Jun 04, 2003 5:45 pm 
I blueprinted about 3 sets of stock rockers, and found that the ratio varied from 1:1.45 to 1:1.57. That means that for a little time you can find a matched set of any ratio you want. Just use a pair of dial gauges and to measure both ends as they rotate on a spare shaft. It doesn't have to be fancy, just stable as you measure.
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pvaliant65
 Post subject:
PostPosted: Sat Jun 07, 2003 7:22 pm 
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Doug i have a set of roller rockers from the Cox Bros that I just recently put on my motor I'm thinking about putting a oil spray bar on it. where did you pick up the oil supply on the motor.
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Doctor Dodge
 Post subject:
PostPosted: Mon Jun 09, 2003 1:26 am 
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I have drilled & tapped the boss at the end of the main oil galley, I run a hardline up from there.

I have also used brass "T" fittlings at the oil pump, where the sending unit goes.
Again I run a hardline up to the valvecover and screw the sender into the other leg of the fitting.
DD
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