Author Topic: C4 Brake Up Grades (Read 6340 times)

GR009 · « **on:** August 05, 2007, 12:43:57 PM »

Just wondering if anyone can help me out with some info, has anyone had any experience with adapting Holden Commodore HSV for example rotors and brakes to a C4 (mine is a 1987 convertible). If so off what model Holden would I be looking for to use. Anybody??

VET-005 · « **Reply #1 on:** August 06, 2007, 09:40:38 AM »

Would be much cheaper and easier to buy a upgrade bolt on kit from the US.

MADVET · « **Reply #2 on:** August 06, 2007, 07:21:38 PM »

If you're looking locally Hoppers stoppers in Vic have a bolt on kit to fit 13"rotors and twin piston PBRs' to the 84 to 87 Vettes.

RJ7868 · « **Reply #3 on:** August 06, 2007, 09:22:44 PM »

HOPPERS STOPPERS link to upgrade page:
http://www.hoppers.com.au/complete%20leaflet%20FEB%202007/page_018.html

310mm and 330 mm KIT TO SUIT 84 – 88 CORVETTE GT40 REPLICA’S
Included in Kit:
Pair of Huge 310mm or 330 Disc Rotors
Pair of Twin Piston Lightweight Alloy Calipers
Set Heavy Duty Brake Pads
Caliper mount kit
Pair custom Brake Hoses & copper washers
Full Fitting Instructions

You need at least 16" rims for 315 and 17inch for 330mm for this conversion.

Priced From $1600 Smooth, $1700 Slotted, $1800 Drilled and Slotted.

Thunder Kiss · « **Reply #4 on:** August 06, 2007, 09:38:18 PM »

I have the 310mm Hoppers kit on my car. I'm fairly happy with it as a street set-up. If you ever hit the track, get the higher spec disks - I think Peter calls them 4000 series or something.

87Z51 · « **Reply #5 on:** August 10, 2007, 06:21:05 PM »

Quote

Originally posted by VET-005
Would be much cheaper and easier to buy a upgrade bolt on kit from the US.

Or buy this setup off eBay Oz for 17" rims.
http://cgi.ebay.com.au/330MM-BIG-BRAKE-CONVERSION-CHEVROLET-CHEVY-CORVETTE_W0QQitemZ130142030527QQihZ003QQcategoryZ32067QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Or source the stock parts yourself to keep 16" rims

RDA 13" rotors for $280ea in Oz
(http://www.brakesonline.com.au/catalog/index.php?cPath=21_54)
or DBA for 50% more

New grand sport calipers $450 shipped
(http://wheelskin.com/grand-sport-calipers.html)

DRM billet caliper adapters $270 shipped

Less than A$1300 bolt on ; all original Vette parts

or if you have 17" rims could do a C5 conversion cheaper using new GM calipers and RDA rotors.

I have a set of DRM adapters to fit 13" brakes on pre '88 cars ;$200