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| Another Brake Upgrade Option http://www.4g61t.org/forum/viewtopic.php?f=22&t=33524 |
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| Author: | Natedog [ Sun Oct 03, 2010 12:06 pm ] |
| Post subject: | Another Brake Upgrade Option |
So after a while of thinking and a little work, my brother and I have came up with another option for the brake upgrade. I could have easily used GVR4 hubs, but I opted to go this route instead of throwing off the camber and such. First we pressed apart the stock hub assembly, and unbolted the captive rotor. Then he used a lathe to turn down the hub enough for a GVR4 rotor to slide over from the front. This is the assembly on the car. (I installed new DSM lug studs, they looked a couple threads longer than the stockers). ![]() Slide the GVR4 rotor over the hub, and then you can install the twin piston caliper. Using a 5.5 mm spacer between the caliper and hub assembly, will set the caliper where it needs to be. I'm having the spacers made, but for now 2 washers I picked up measure in at 5mm (should suffice for mock up). I'm also going to shop around for 5 mm longer bolts. ![]() ![]() I'm sorry for the crappy cell phone pictures, but I figured this might interest some of you... Questions? Thoughts? |
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| Author: | uweenukr [ Sun Oct 03, 2010 3:37 pm ] |
| Post subject: | Re: Another Brake Upgrade Option |
That seems pretty cool. It would help eliminate the camber and bump steer issues. Only hard part is the lathe on the hub. But if you go at it with a grinder it will take forever and be out of balance. Good work! |
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| Author: | Natedog [ Sun Oct 03, 2010 7:28 pm ] |
| Post subject: | Re: Another Brake Upgrade Option |
viewtopic.php?f=10&t=24309 Looks like I'm re-inventing the wheel |
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| Author: | dikdiamond [ Sun Oct 03, 2010 7:52 pm ] |
| Post subject: | Re: Another Brake Upgrade Option |
I've been wanting to do that to my hubs but I wasn't sure if I could use the twin-piston calipers or not. For some reason I was under the impression that they still wouldn't fit right,and that Expo or GVR4 knuckles were needed. Sweetness |
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| Author: | 89D15CRX [ Sun Oct 03, 2010 8:54 pm ] |
| Post subject: | Re: Another Brake Upgrade Option |
This looks like a viable option. I have the whole knuckle and everything. I have it, the hubs, and both calipers for anyone who might be looking! Thanks for the info! If they don't sell I know what I'm doing! |
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| Author: | archertsi [ Sat Oct 23, 2010 2:23 pm ] |
| Post subject: | Re: Another Brake Upgrade Option |
Any idea if a gvr4 or expo hub would just press into the colt wheel bearings? Then maybe machining and spacers wouldn't necessary? |
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| Author: | 89Mirageman [ Sat Oct 23, 2010 4:15 pm ] |
| Post subject: | Re: Another Brake Upgrade Option |
Quote: Any idea if a gvr4 or expo hub would just press into the colt wheel bearings? Then maybe machining and spacers wouldn't necessary?
They don't, the csm wheel bearings and hubs are completely different.
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| Author: | Crackerman [ Tue Oct 26, 2010 7:36 am ] |
| Post subject: | Re: Another Brake Upgrade Option |
and 1/4" plate works for spacers too, might be easier to work with... |
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| Author: | Natedog [ Tue Oct 26, 2010 9:38 am ] |
| Post subject: | Re: Another Brake Upgrade Option |
I ended up going with 5.75 mm spacer, which is right at 1/4 inch. I ordered 5 mm longer bolts from Fastenal (grade 10.9) so I'd feel safe about the set up. It's all installed now with SS brake lines from a fwd DSM. The were a bit shorter than stocks, but don't bind, even lock to lock. I'm waiting on my rear drilled rotors to get in before I try the back lines. |
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| Author: | dikdiamond [ Sat Nov 06, 2010 10:04 am ] |
| Post subject: | Re: Another Brake Upgrade Option |
What's the minimum wheel size when going to the bigger calipers,15's? |
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| Author: | Natedog [ Sat Nov 06, 2010 10:44 am ] |
| Post subject: | Re: Another Brake Upgrade Option |
Yes, 15's seems to be the smallest you can run. |
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| Author: | Flying Eagle [ Sat Nov 06, 2010 10:47 am ] |
| Post subject: | Re: Another Brake Upgrade Option |
Stock turbo 266mm brake rotors and their calipers just, and I mean just, clear the stock 14" rims. |
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