Thread: '37 Oze build

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Originally Posted by daveS53

So far, the parking brake is not working well. I did my best to route the cable housings with large-radius bends, to minimize friction, but the only way to get any holding power is to pull really hard on the lever - so hard you really need two hands, not just one.

Drum adjustment is not the issue. I can pry on the actuation lever at the drum with a screwdriver and get some braking force, with only a 1/4 inch or so of lever travel.

Anyone else had this problem?

Yep! No matter what I've tried it doesn't get any better. I've got Wilwood brakes, disc X disc with the small brakes shoes in the center of the hat. It meets the spirit of a parking brake, but I can promise you it will never hold back the car.

Originally Posted by 34_40

Yep! No matter what I've tried it doesn't get any better. I've got Wilwood brakes, disc X disc with the small brakes shoes in the center of the hat. It meets the spirit of a parking brake, but I can promise you it will never hold back the car.

Mike I think if we went back to the OEM explanation of the "center hat" brake on the disc rotor that was given in the Owner's Manual it is a "Parking Brake", and not an "Emergency Brake" intended to stop the car. Lokar calling their product an "Emergency Hand Brake Lever" is probably a misnomer. Mine does fine to keep the car from rolling, even on a hill, but if forgotten it will not keep the car from pulling away in gear, which is a bad thing for the little brake shoes.

Dave, to answer your questions in Post 211, the coil covers are edelbrock. The accessory drive is Vintage Air Frontrunner and yes, the PS pump is low. My engine is a GM LS3 with the hot cam....GM says 480 hp but I need more....next time, I will do the supercharged GM crate motor.

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The MAF doesnt care what is downstream....the MAF can be at the end of the 12" straight insetead of the middle. I suggest trying it like you have it now and, if there is still some issue, moving it to the end of the straight section. From what we found, the calibration is done on some air tract setup, probably a Corvette. Bends screw up the flow by making turbulence. Their suggestion to place the MAF at the end of a straight section is to allow the air to straighten back out after a bend. On mine, we had a bad situation of a 90 deg turn inside the air box immediately followed by another 90 deg bend to go forward. This really cause a bad tornado inside the air duct, making it hard to get a good MAF reading. The aftermarket programmable units take a sample across the duct and can average the readings. The problems with the aftermarket MAF were that we had two suffer early death.....or were dead on arrival. The third one ran but we were gun shy and went back to the GM parts bin.

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Yes, my idle is high...not sure what it is however...all the ECM changes were done in LA by Steve Sbelgio in Whittier. When we took the car to him, it would barely pull from a dead stop on an uphill grade. His changes made the car really tractable.

Originally Posted by rspears

Mike I think if we went back to the OEM explanation of the "center hat" brake on the disc rotor that was given in the Owner's Manual it is a "Parking Brake", and not an "Emergency Brake" intended to stop the car. Lokar calling their product an "Emergency Hand Brake Lever" is probably a misnomer. Mine does fine to keep the car from rolling, even on a hill, but if forgotten it will not keep the car from pulling away in gear, which is a bad thing for the little brake shoes.

That's why I said "Meets the spirit of a parking brake", it'll hold the car from rolling while in neutral. But you can drop it in any gear and drive right over it no matter how hard you pull on that lever. It won't pass our state inspection working like that.. but as long as my buddy keeps his inspection station going, I shouldn't have a problem..

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Originally Posted by daveS53

Right now, my brake will hold in reverse, but not any forward gear. That test doesn't seem like the real purpose of a parking brake.

Usually, drums hold better going forward than they do in reverse, could you have possibly reversed the sides?

I thought that I had entered a post earlier today about switching sides or possibly just reversing the primary/secondary shoes but evidently went on to something else before it posted----

Plus in the old days of rear drum brakes, you only had to press down on the pedal and then set the hand lever------

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the shorter lined shoe is normally on the front side on drum brakes.

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