[DeTomaso] Wilwood Brakes WTF????

Gray Gregory rgg at gregorycook.com
Wed Apr 17 16:05:16 EDT 2013


If your car is a race car then I would also say add brake cooling ducts!

Gray

-----Original Message-----
From: detomaso-bounces at poca.com [mailto:detomaso-bounces at poca.com] On Behalf Of Arno Keijzer
Sent: Wednesday, April 17, 2013 1:14 PM
To: Mike Drew
Cc: MikeLDrew at aol.com; theemonkey at yahoo.com; detomaso at poca.com
Subject: Re: [DeTomaso] Wilwood Brakes WTF????

Best topic till now. Sometimes I was wondering why I punisch myself with 50 mails a day from a certain Mike Drew ;-) I have the same problems with my Grp4 clone race car. I could not drive for more then one lap before all focus diapeared while beeing thrown throuh the car by my steering wheel under braking. When It cooled down the problem was gone. Now I can make the joke that here in Europe we call Willwood, Willnot (stop ) but that would be unfair.
Any way I have changed my superlights for Performance Friction monoblocks. Top of the line racing stuff. It did not help. Changed brakepads in all differend kinds, no result. Increased my caster to improve sability, no result. Overhauled the steering rack, and made the mounting brackets stronger, still no result.
So now I will get rid of the Willwood discks and hub's and change them for floating discks.
Maybe that will help.
I removed the valves long time ago, and I never noticed any difference. But I am using a pedal box setup without brake booster.

But can we sumurize this topic in:

Use 6 piston Calipers
Use the right pads
Use floating discks
Use steel brackets
Rethink the use of press valves.

Did I miss anything?

Grtz Arno

Op 17 apr. 2013 om 03:03 heeft Gray Gregory <rgg at gregorycook.com> het volgende geschreven:

> I agree with the Shelby guy completely. Brake cooling at Laguna is paramount! His point about thin pad material is also pertinent. We change pads there in the B16 when they get worn half way. Now weather it's worth trying to install cooling ducts on a mostly street driven (and rarely tracked at Laguna)  Pantera is something you'll have to decide for yourself...
> 
> Gray
> 
> -----Original Message-----
> From: detomaso-bounces at poca.com [mailto:detomaso-bounces at poca.com] On 
> Behalf Of MikeLDrew at aol.com
> Sent: Tuesday, April 16, 2013 7:29 PM
> To: theemonkey at yahoo.com; detomaso at poca.com
> Subject: Re: [DeTomaso] Wilwood Brakes WTF????
> 
> 
> In a message dated 4/16/13 13 39 46, theemonkey at yahoo.com writes:
> 
> 
>> I talked with Bob Benson last night.He is unable to post to the forum 
>> at the moment as he just got a new computer and something is not set 
>> correctly yet.He is running the same brake pad compound you and i are 
>> both using(Wilwood BP20),and his pads are barely worn down at all.
>> 
>>>> I don't think he was using the brakes very hard. :>) :>) :>)
> 
>>> Granted his were installed just before Laguna Seca so they will have
>> less wear than yours as i believe you have had the Bp20's on for 
>> awhile including being used at ThunderHill last fall correct?
>> 
>>>> True--they worked great there, with almost no wear whatsoever.   The
> pads looked like new when I installed my slicks in the pits that morning at Laguna.
> 
>>> By the way he had the BP10's before and they lasted 7 years and they 
>>> are
>> nowhere near as good as the BP20's.
>> 
>>>>> I have been VERY impressed with the BP20s as well.   They worked really
> well on the street, and at every other track I've been to.
> 
>>> He does however have 6 piston front calipers which use a longer pad 
>>> than
>> the 4 piston calipers.
>> 
>>>>> Some do, some don't.   He has larger rotors and probably larger
> calipers/pads than I do.   Some of the smaller six-piston Wilwoods use the same 7420 
> pad as the four-piston Superlite IIs that I have.
> 
>>> I do not think the larger front calipers are the reason that his 
>>> lasted
>> longer than yours.Although they certainly did not hurt.I think either 
>> the bias is off(not enough rear bias versus front)or the fronts got 
>> really hot versus t
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