Jackass w/ LS9: original build and new Jackass 2.0 updates!

[Stielow]

Originally Posted by RussMurco

Thanks for the info, Charlie, and thanks for the visual, Gordon!
Is it still on the original set of rotors and pads?

Yes it still has the pads and rotors it was built with in 2008. The Carbon Brakes wear great when you’re not always beating the crap out of them. So far I have used up half the pads on Hellfire. But that car has had around 3 hours of very hard track miles. On the Z/28 we can go 5 tank fulls of fuel on track before we need pads. (We test tank of fuel at work fill the tank and go flat out until it is empty - about 42 minutes in a Z/28) The rotors will last for about 30 pads changes.

On Hellfire I used the Corvette ZR-1 brake booster and master. There is a Bosch booster is tuned for the ZR-1 (Look it up in Service Parts). I like the brake feel of the OE booster and master. I have also failed many aftermarket booster.

The Carbon Brakes will work fine without ABS. They work a lot better with ABS. I have the Bosch ABS system and I know of a Conti and Dephi system that will work also. The Bosch system is their motorsports system and is very expensive, but gives you a laptop interface and works flawlessly with the Brembo CCM brakes. The Conti race system is available but still not adjustable (One guy had it at the OUSCI this year). The Dephi system is very limited and not commercially available.

Because the Bosch system is designed for racing I never had a drop out on Hellfire. Once it was working it worked. I'm so confident in the Bosch sytem that on JA2.0 I plan on running it and not installing a prop valve as a fail safe. On my other cars I set the base brakes with a prop valve then turned on the ABS. I don't feel I need to do that.

Mark

[RussMurco]

Originally Posted by Stielow

Yes it still has the pads and rotors it was built with in 2008. The Carbon Brakes wear great when you’re not always beating the crap out of them. So far I have used up half the pads on Hellfire. But that car has had around 3 hours of very hard track miles. On the Z/28 we can go 5 tank fulls of fuel on track before we need pads. (We test tank of fuel at work fill the tank and go flat out until it is empty - about 42 minutes in a Z/28) The rotors will last for about 30 pads changes.

On Hellfire I used the Corvette ZR-1 brake booster and master. There is a Bosch booster is tuned for the ZR-1 (Look it up in Service Parts). I like the brake feel of the OE booster and master. I have also failed many aftermarket booster.

The Carbon Brakes will work fine without ABS. They work a lot better with ABS. I have the Bosch ABS system and I know of a Conti and Dephi system that will work also. The Bosch system is their motorsports system and is very expensive, but gives you a laptop interface and works flawlessly with the Brembo CCM brakes. The Conti race system is available but still not adjustable (One guy had it at the OUSCI this year). The Dephi system is very limited and not commercially available.

Because the Bosch system is designed for racing I never had a drop out on Hellfire. Once it was working it worked. I'm so confident in the Bosch sytem that on JA2.0 I plan on running it and not installing a prop valve as a fail safe. On my other cars I set the base brakes with a prop valve then turned on the ABS. I don't feel I need to do that.

Mark

Thanks for the input, Mark. The only really trick stuff that will be on my car will be the ZR1 brake system so I was a little worried when I read about the grabbing at speed. Mine will be a 99.999% street car so I think I'll skip the Bosch ABS (the cost of the ZR1 brakes was already sobering), at least for now.
Thanks for the input on the master cylinder/booster too, I have the standard J56 booster but will be ordering the J57 piece today.
You've been an enormous source of proven information and it is much appreciated!!!

[Vince@Meanstreets]

Originally Posted by RussMurco

Thanks for the input, Mark. The only really trick stuff that will be on my car will be the ZR1 brake system so I was a little worried when I read about the grabbing at speed. Mine will be a 99.999% street car so I think I'll skip the Bosch ABS (the cost of the ZR1 brakes was already sobering), at least for now.
Thanks for the input on the master cylinder/booster too, I have the standard J56 booster but will be ordering the J57 piece today.
You've been an enormous source of proven information and it is much appreciated!!!

Hey Murco, what are the parts numbers for the boosters. I like to keep them in my data base for future reference.

Thanks!!

[Stielow]

Originally Posted by Vince@MSperfab

Hey Murco, what are the parts numbers for the boosters. I like to keep them in my data base for future reference.

Thanks!!

Always try to get the AC Delco part number it is usually a lot cheaper

ACDelco 178-0814 GM Original Equipment Power Brake Booster Assembly

I use Amazon (Prime) so free shipping! (2 day)

Mark

[clill]

He meant Amazon Prime...Best thing ever..

[Stielow]

Originally Posted by clill

He meant Amazon Prime...Best thing ever..

Prime also has no minimum order.

Amazon ships me more car parts than Summit.

Mark

[GregWeld]

Originally Posted by clill

He meant Amazon Prime...Best thing ever..

Shill.....

[Vince@Meanstreets]

Originally Posted by Stielow

Always try to get the AC Delco part number it is usually a lot cheaper

ACDelco 178-0814 GM Original Equipment Power Brake Booster Assembly

I use Amazon (Prime) so free shipping! (2 day)

Mark

thanks mark,

118 savings, not bad....and you run the DSE bracket too right?

[RussMurco]

Originally Posted by Stielow

Always try to get the AC Delco part number it is usually a lot cheaper
ACDelco 178-0814 GM Original Equipment Power Brake Booster Assembly
I use Amazon (Prime) so free shipping! (2 day)
Mark

I'm glad I ordered mine before you caused a run on that part number, sold out at Amazon!

[Stielow]

A couple updates.

Matt is knocking it out.

The ECM and fuse block mounts where the battery used to be.

Matt suggested we make the tow hooks / tie down out of stainless steel so when the car is shipped the paint does not get chipped off. Cool idea and part

The MIL Spec connector holes are in.

The front inner fenders are re-worked for the down bars.

We have the wiring cart ready for this weekends wiring.

Mark