Disc Brake Conversion

[Mark Ruset]

Originally Posted by Jody Lang

Going to a 4 wheel disc set up will not help your starting line issues. What you're explaining is how I would explain 4 wheel discs. Stops great, but doesn't hold very good on the starting line.

Thanks for your reply Jody, can you elaborate on your comment on what does it take to hold a car on the starting line? My only issues is the starting line, if I get up on the convertor much more than 2200 the car wants to push through the beams. the car on the top end stops well.

[HandOverFist]

If I'm not mistaken Aerospace offers some soft pads which might make a difference in holding on the line, but it's just conjecture on my part. http://shop.aerospacecomponents.com/...brakepads.aspx

[Mark Ruset]

Originally Posted by HandOverFist

If I'm not mistaken Aerospace offers some soft pads which might make a difference in holding on the line, but it's just conjecture on my part. http://shop.aerospacecomponents.com/...brakepads.aspx

I spoke with one of the tech guys at Aerospace. Their position is to use the 4 piston calibers on the front and to convert the drums in the rear to their disc set up. They felt the car would not stop as well as the drums currently on the car now by only converting to front discs. They also said that it's critical to get the right pedal ratio.

[Chad Rhodes]

Originally Posted by Mark Ruset

I spoke with one of the tech guys at Aerospace. Their position is to use the 4 piston calibers on the front and to convert the drums in the rear to their disc set up. They felt the car would not stop as well as the drums currently on the car now by only converting to front discs. They also said that it's critical to get the right pedal ratio.

Mark, we've got aerospace on both our cars, only problem we've had was one caliper leaked between the halves, they overnighted us another one.

[HandOverFist]

Originally Posted by Mark Ruset

I spoke with one of the tech guys at Aerospace. Their position is to use the 4 piston calibers on the front and to convert the drums in the rear to their disc set up. They felt the car would not stop as well as the drums currently on the car now by only converting to front discs. They also said that it's critical to get the right pedal ratio.

I'm committed at this point to the 2-piston in the front and 4-piston in the rear...will see how it works out. Will also be using the Strange 1.032 master cylinder.

[Greg Hill]

Originally Posted by HandOverFist

I'm committed at this point to the 2-piston in the front and 4-piston in the rear...will see how it works out. Will also be using the Strange 1.032 master cylinder.

Those 2piston fronts are for a really light car, 2400lbs or less. I have never seen them on a stocker. We have 4wheel aerospace on both my car and Andrew's and have had no problems. I can hold my car at 4000 plus rpm's on the starting line.

[HandOverFist]

Originally Posted by Greg Hill

Those 2piston fronts are for a really light car, 2400lbs or less. I have never seen them on a stocker. We have 4wheel aerospace on both my car and Andrew's and have had no problems. I can hold my car at 4000 plus rpm's on the starting line.

None the less, they are already on the car and I will give them a chance. I don't envision using anywhere near 4000rpm on the starting line.

[Dion Hildebrandt]

Originally Posted by HandOverFist

None the less, they are already on the car and I will give them a chance. I don't envision using anywhere near 4000rpm on the starting line.

My own experience is not the starting line that will be the problem. Quick story I bought a set of willwood front brakes for my chevelle from a speed shop. The counter person did not listen to what my car was and I ended up with a set of brakes for a 2400 pound chevelle (a tube chassis car, mine is a 3500 pound stocker). The brakes worked pretty good until I tried to haul it down from 115 MPH.....left the backside puckered a little bit. Called up willwood and they speced out the proper front set, got that set installed no problems. I have a disc front and drum rear setup currently and have two stepped up to 3200 rpms with around 800 pounds brake pressure with this configuration. FWIW

[Mark Ruset]

Originally Posted by Greg Hill

Those 2piston fronts are for a really light car, 2400lbs or less. I have never seen them on a stocker. We have 4wheel aerospace on both my car and Andrew's and have had no problems. I can hold my car at 4000 plus rpm's on the starting line.

Greg that just what I wanted to hear, both cars are very competitive and I'm sure if there was a better product out there you would use it

[Peter Ash]

Mark


I had the "Push through the beams problem (2500rpm on 2 step)" as I struggled to get 750lbs., brake pressure with my hand controls. I changed my MC to a 1.030 bore piece and increased my pedal ratio to 7.4:1. Wah lah, 1200+ psi pressure with hand controls, and no more pushing through the beams. Using your leg would probably bury the gauge on my car.