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Old 02-06-2010, 02:11 PM
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lal Naja lal Naja is offline
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Join Date: Oct 2003
Location: Golden Isles, GA
Cobra Make, Engine: Butler Cobra. 350 Chevy Engine, blueprinted, heads cc'd, ported, polished, manifolds matched, big valves, 1.6 roller rockers, TB Injected, mild cam, MSD crank trigger electronic ignition. TKO-600 transmission. XKE Jaguar rear. IFS by Fast Cars
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Quote:
Originally Posted by bakbutler View Post
Ralph
I have my brake bias set at about 60/40 front to rear using the balance bar. This setting gives good balance for the street. At the track you might want to fine tune for track conditions and temps, not difficult but cannot be done on the fly without a balance valve. There are a lot of variables to contend with at the track running at 8 to 10 tenths. This is where, in my opinion, a balance valve proves it's value. I don't track my car and find my settings (60/40 prox) to work fine for me.
It looks like you are making a lot of progress with your build.
Leo
Leo, How do you know, or how do you measure the 60/40 ratio on the Butler balance bar?

Seems to me that it would require a lot of stop start driving. Then either jacking up the car or removing the pedal box cover, loosening the lock-nuts on the Bias-Bar, making the adjustments locking up the lock nuts, then driving and testing brakes then adjust again.

I would like to adapt/use Tilton remote adjustable cable http://www.pegasusautoracing.com/pro...asp?RecID=1090 or similar Wilwood or CNC on the 1/2" 20tpi threaded rod that is in the Butler pedal box. But this will take a few modifications with the way Ron engineered it.

It may require removing the 1/2" hemi-joint that is attached to the bottom of Ron's pedal and replace it by welding a sleeve to the pedal that will then accept the Tilton http://www.pegasusautoracing.com/pro...asp?RecID=6531 Bias bar.

Then a 90 degree http://www.pegasusautoracing.com/pro...asp?RecID=3442 connector with remote adjusting cable should do the trick.

Hoping to hear from more Butler drivers on the subject.

Thanks,

Arthur

Last edited by lal Naja; 02-06-2010 at 03:04 PM.. Reason: More info
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