Disc brake conversion (70 Dart)

Are your Wilwoods (4) Piston calipers or just (2) piston like 72bluNblu mistakenly calculated?

LOL
Unfortunately, you both miscalculated. With the single floating caliper you have to double the normal force on the rotor, and multiply that times the surface area of the brake pads. Then the friction coefficient times the distance from the center of the caliper piston to the center of the hub to get the friction force on the rotor.

It's not a miscalculation in either case. The single piston force is not doubled, and the 4 piston calipers have 2 pistons per side of the caliper. Only one side is used for the calculation. This is explained earlier in the paper I linked in post #34 about how to do the brake force calculations, it's common practice for the calculation. Most of the available calculators for brake force include an explanation as well.

You could use the area of all 4 pistons for the fixed Wilwood calipers, but then you would also double the area for the single piston sliding calipers (opposite and equal reaction). Instead, one side of the caliper is used for the calculation so the results are easily compared and no doubling or halving needs to take place.

YOU are the one that claimed YOUR Brake Force Calculator was the best thing to use to evaluate a braking system. And you are also the one who claimed to be a Aerospace Engineer?

Now you have a problem with admitting you calculated the Wilwood calipers which are (4) piston and not (2) to get wrong info.

Just admit you were wrong and be done buddy!

i have tested almost all these brake systems on our brake dyno with brake pads and solid steel replacement pads. I work at an R&D OEM and everybody comes to us for evaluation. I don't have to look much further than your amateur numbers you came up with to know you had a mistake in obtaining your data. Your numbers weren't even close. But just using it to prove you didn't calculate your numbers right will never be enough for 72bluNblu will it.

Where is your data? As always, it's just you opinion and a Brake Force Calculator you screwed up and won't admit you calculated wrong. You yourself admit you have never taken any of your cars to a race track and claim to drive like a little old lady everywhere on the street, so where are you getting your testing results? And your correction numbers are wrong too. But I like the fact you took my reasons where multi-piston calipers benefit a braking system and retyped it on here like you discovered that info.

If your an Aerospace Engineer and machinist like you say you should be able to build your own brake force dyno on your lathe, then post REAL data here instead of your opinion that hurts our aftermarket. I'm sure it won't be up to SAE parameters for testing, but it would be real data, a big step for 72bluNblu!

Until I see REAL data you have collected, this is all just your opinion. As usual... So just suck it up like a big boy and admit you were blowing smoke out your ***.

Most of the people on this forum are happy with drum brakes or stock disc set ups. So that's really all they need here about.

I didn't do the calculation wrong as I explained above. The way I calculated it using a single side of the caliper is a common practice, that's why the calculators are set up that way. If you use both sides of the caliper for the fixed multi-piston calipers you must also double the area for the single piston sliders. There are plenty of examples of the calculations being done in that manner.

Your characterizations of my qualifications, and me personally, are inaccurate and not worth addressing further.

I will say this one time, and one time only, stop the bashing in this thread NOW !!

Thank you. Hopefully this post is straightforward enough not to be misconstrued as bashing.

I apologize for letting myself get dragged into the personal attacks.