Brake upgrade for HHR SS
12-08-2015 | 07:21 PM
#13
Senior Member
Joined: 04-06-2010
Posts: 655
From: Riverside, California
12-15-2015 | 01:56 PM
#14
Senior Member
Joined: 09-04-2012
Posts: 170
From: LI,NY
The swap isn't too bad if you have a bunch of tools at your disposal.
Let me first say that this didn't go on a stock HHR. It is using a Hydro Boost system from an Astro Van mated up to a Corvette master cylinder. The stainless brake lines are not stock and the lines go thru a B&M line-lock system. The spindles have been reversed from right to left but that won't effect the braking. The brackets and spacers are made of 3/8" & 3/16" plate. The rotors are C4 Corvette and the calipers are C5. Of course the rotors need to be re-drilled to 5x110 mm. The concentric ring is machined out of 3/16" plate. I'm not sure if it will need a proportining valve or not as I haven't used the system yet.
Let me first say that this didn't go on a stock HHR. It is using a Hydro Boost system from an Astro Van mated up to a Corvette master cylinder. The stainless brake lines are not stock and the lines go thru a B&M line-lock system. The spindles have been reversed from right to left but that won't effect the braking. The brackets and spacers are made of 3/8" & 3/16" plate. The rotors are C4 Corvette and the calipers are C5. Of course the rotors need to be re-drilled to 5x110 mm. The concentric ring is machined out of 3/16" plate. I'm not sure if it will need a proportining valve or not as I haven't used the system yet.
it would've been cool tho!!! guess im getting lazy in my old age....
01-22-2016 | 04:45 PM
#15
Joined: 01-22-2016
Posts: 5
From: Blue Springs Mo
I've had my HHR SS for about 2 months now still learning everything about them, from what I understand my wheels are of a supercharged cobalt so a LSJ from what i read, they are 18's will the 14.5" rotors from ZZP clear?
01-22-2016 | 05:19 PM
#16
Thread Starter
Joined: 05-23-2015
Posts: 9
From: Cleveland
If it is the stock 18 inch wheel off a Cobalt SS you should have no problem fitting the 14 inch brake, should be the same size and offset as the HHR SS wheel
01-22-2016 | 05:31 PM
#18
Platinum Member
Joined: 12-06-2009
Posts: 11,431
From: Alabama
Welcome to the site DaddyWagon. 
The brake kit specs says it will clear the HHR SS stock 18 inch wheels. Not sure about those Cobalt wheels. You may want to check out the CobaltSS.com forum and look for an answer there.
Now one thing. You can't just put on the 14.5 rotors alone with your stock calipers. Won't fit. You'll have to buy the kit, or at least the adapter brackets that will move the calipers out farther to compensate for the bigger rotors.
If you have Brembos already, call ZZP and ask them about using those adapters with the Brembos.
The brake kit specs says it will clear the HHR SS stock 18 inch wheels. Not sure about those Cobalt wheels. You may want to check out the CobaltSS.com forum and look for an answer there.
Now one thing. You can't just put on the 14.5 rotors alone with your stock calipers. Won't fit. You'll have to buy the kit, or at least the adapter brackets that will move the calipers out farther to compensate for the bigger rotors.
If you have Brembos already, call ZZP and ask them about using those adapters with the Brembos.
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