Started my "winter projects" + RANT
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
That's a nice looking hat. I was tempted to get mine anodized but guys talked me into just polishing it.
Looking are the rest of the undercarriage in the car, it appears extremely neat.
Keep posting pictures, gives me ideas.
Looking are the rest of the undercarriage in the car, it appears extremely neat.
Keep posting pictures, gives me ideas.
Former Vendor
Joined: Nov 2005
Posts: 683
Likes: 1
From: Mounds View Minnesota
Hey red, did you know your calipers are upside down??
Also how do they bleed being at an angle like that? is it hard to get all the air out?
PBC uses a different offset hat than stock and thier own design. Wilwood does make hats that fit the C3 but no one I've talked to want to spend the $$ for the parts.
VPB aluminum hubs also work great but again are $$
Keith
Also how do they bleed being at an angle like that? is it hard to get all the air out?
PBC uses a different offset hat than stock and thier own design. Wilwood does make hats that fit the C3 but no one I've talked to want to spend the $$ for the parts.
VPB aluminum hubs also work great but again are $$
Keith
Originally Posted by Red_Shift
I won't mention the numerous problems I've had with this company. I will say however, that after about 1.5 years they finally straightened the last problem out.
The quality of parts is top notch. It will be a considerable effort but if you work at it long enough you'll have great brakes from this company.
One thing you'll have to do, Twin Turbo, is send in your hubs to be machined down a few thousandths around the outside and the edge will need to be smoothed off. Precision Brakes did this for me for free. I know others to have had this same problem. The hubs just won't fit in their hats.
The quality of parts is top notch. It will be a considerable effort but if you work at it long enough you'll have great brakes from this company.
One thing you'll have to do, Twin Turbo, is send in your hubs to be machined down a few thousandths around the outside and the edge will need to be smoothed off. Precision Brakes did this for me for free. I know others to have had this same problem. The hubs just won't fit in their hats.
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Originally Posted by groovyjay
See how the bolts go all the way through the whole hat... Just 8 bolts are holding them in place front and rear.
I can see your problem.
Another solution might be to turn a little off the heads, make the cap screw hole a little shallower but it would remove some material. I have done this a number of times without a problem
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 8,220
Likes: 208
Originally Posted by norvalwilhelm
That's a nice looking hat. I was tempted to get mine anodized but guys talked me into just polishing it.
Looking are the rest of the undercarriage in the car, it appears extremely neat.
Keep posting pictures, gives me ideas.
Looking are the rest of the undercarriage in the car, it appears extremely neat.
Keep posting pictures, gives me ideas.
Thanks Norval, it's amazing how dirty the undercarriage has gotten after just 4000miles in dry conditions. I've been putting some elbow grease in it this weekend to make it look like new again.
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 8,220
Likes: 208
Originally Posted by norvalwilhelm
Is it possible to countersink the holes deeper??? How about bevelling the existing hole and use flat head cap screws, they fit flush.
I can see your problem.
Another solution might be to turn a little off the heads, make the cap screw hole a little shallower but it would remove some material. I have done this a number of times without a problem
I can see your problem.
Another solution might be to turn a little off the heads, make the cap screw hole a little shallower but it would remove some material. I have done this a number of times without a problem
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Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Originally Posted by norvalwilhelm
This is a comparison between these new large rotors and a stock one. The large rotor with it's aluminum hat weights exactly the same as a stock rotor, not this stock rotor, it is 3 pounds underweight.
That stocker is at least 10 years old without a single crack from hole to hole.
That stocker is at least 10 years old without a single crack from hole to hole.
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 8,220
Likes: 208
Just an update. Took the rear rotors and hats to a local machine shop yesterday. They were too busy to look at them yesterday, but they said they will try to work on them first thing on monday morning. I'm just hoping they can make them work, so I can put the car back together and start driving it again... Next weekend is our Corvette Clubs Dyno Day and it would be great to have the car ready before that.
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 8,220
Likes: 208
Originally Posted by Twin_Turbo
I like the oversize hats because that makes the rotor look "smaller" , usually when you see big rotors you see a large rotor face where the caliper only sweeps the top part, leaving the rest unused, I like the smaller look that's fully sweeped a lot better and yes the alu hat would weigh less than the iron rotor so that would be a good thing
Race Director
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Originally Posted by groovyjay
I tried one bolt without the washer and it is almost flush with the hat now. I also went through the Catepillar bolt catalog and I did find right bolts with shorter bolt heads. I will order a set on monday.
Drop by the shop and I will take care of you.
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 8,220
Likes: 208
Originally Posted by norvalwilhelm
I wouldn't run a bolt into an aluminum hat without a washer. They could easily remove a few milimeters off the head to reduce the amount sticking out. Put a nut in the lathe, run the bolt in and turn the required amount off the head.
Drop by the shop and I will take care of you.
Drop by the shop and I will take care of you.
Seriously I just tired to see how much lower bolt heads I'll need. I will run washers, no doubt.
Thread Starter
Le Mans Master
Joined: Nov 2000
Posts: 8,220
Likes: 208
Problem solved, picked up the rotors from the machine shop and went straight back to the garage to see how they would fit.
Here's a close up showing the new holes the machine shop made (they are the outer ones.) They also had to trim down each "lip" 1mm to clear the handbrake drum. PBC - close but no cigar!!!
Another shot of the rotor.
Rear set up inplace, everything fits now, no offset changes. Gonna do the bleeding tomorrow.
Even the 13" rotors look tiny inside these wheels... I'm looking to buy set of 18" wheels for race days...
Thanks everyone for the support again...
Here's a close up showing the new holes the machine shop made (they are the outer ones.) They also had to trim down each "lip" 1mm to clear the handbrake drum. PBC - close but no cigar!!!
Another shot of the rotor.
Rear set up inplace, everything fits now, no offset changes. Gonna do the bleeding tomorrow.
Even the 13" rotors look tiny inside these wheels... I'm looking to buy set of 18" wheels for race days...
Thanks everyone for the support again...
Last edited by groovyjay; May 15, 2006 at 05:51 PM.