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| Registered Join Date: Oct 2003 Location: Mount Pleasant, South Carolina 
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				Brake caliper carrier machining question
			 
			I didn’t want this getting lost with the caliper grease questions, so I’m starting another post.  The E46 non-M to M brake caliper carrier is unobtaium right now. The adapter would allow me to use an M3 caliper and M3 CSL rotor. I’ve had a set on order since last November with Turner/ECS for my track 330 and the projected ship date keeps getting pushed back. Now it is mid September. That said, I have a new pair of E36 M3 carriers, but the mounting flange needs to be machined to match the unobtainable carrier. What do you think? Would I be taking too much off, considering it will be the same as the Turner/ECS part? Edit: when I ordered mine, they were about $155 per pair. Now I see them for $45 per pair. Probably a mistake. For grins, I ordered a pair, but they’re not due till mid September as well. If my machined calipers don’t work, I can see which one of the ordered caliper carriers comes in and cancel the other order.      Last edited by A930Rocket; 05-15-2022 at 04:49 PM.. | ||
|  05-15-2022, 04:24 PM | 
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			How do you know how much to machine off?
		 
				__________________ Scott '78 SC mit Sportomatic - Sold | ||
|  05-15-2022, 06:46 PM | 
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			Taking a step back, is this too much work and risk vs seeking a solid aftermarket brake system?
		 
				__________________ Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits | ||
|  05-15-2022, 07:36 PM | 
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			I think it's more a time frame problem Chris.
		 
				__________________ Scott '78 SC mit Sportomatic - Sold | ||
|  05-15-2022, 08:06 PM | 
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| Still Doin Time Join Date: Nov 2004 Location: Nokesville, Va. 
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			So how much material needs machined off? 2) what is the thickness after?
		 
				__________________ '15 Dodge - 'Dango R/T Hauls groceries and Kinda Hauls *ss '07 Jeep SRT-8 - Hauls groceries and Hauls *ss Sold '85 Guards Red Targa - Almost finished after 17 years '95 Road King w/117ci - No time to ride, see above '77 Sportster Pro-Street Drag Bike w/93ci - Sold | ||
|  05-16-2022, 04:07 AM | 
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| Registered Join Date: Oct 2003 Location: Mount Pleasant, South Carolina 
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			I would be cutting off about 7 mm at each flange. I would have to double check the remaining material. Big brake kits are stupid money for this car and not worth it to me. This will run me about $600 all in with rotors, calipers, and carriers. This gives me a little bit bigger rotor with a little more heat sink capacity. Is it worth it, maybe, maybe not. But I’ve spent stoopider money in the past. It keeps me busy and out of trouble. | ||
|  05-16-2022, 06:41 AM | 
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			Is the first pic what you want to end up with?  So after machining 7mm off, how much thread depth will you have left?  I cant believe you measure in mm, LOL.
		 
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|  05-16-2022, 08:47 AM | 
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| Still Doin Time Join Date: Nov 2004 Location: Nokesville, Va. 
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				 | Quote: 
 
				__________________ '15 Dodge - 'Dango R/T Hauls groceries and Kinda Hauls *ss '07 Jeep SRT-8 - Hauls groceries and Hauls *ss Sold '85 Guards Red Targa - Almost finished after 17 years '95 Road King w/117ci - No time to ride, see above '77 Sportster Pro-Street Drag Bike w/93ci - Sold | ||
|  05-16-2022, 10:41 AM | 
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			I'd make sure there aren't any heli-coils in those threads before cutting.
		 
				__________________ Scott '78 SC mit Sportomatic - Sold | ||
|  05-16-2022, 11:41 AM | 
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| Registered Join Date: Jun 2000 Location: bottom left corner of the world 
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			My inner engineer says it wouldn't be a problem machining off the 7mm due to the direction of the forces. And as far as exact fitment goes you could add shims to get perfect alignment. | ||
|  05-16-2022, 12:05 PM | 
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| Still Doin Time Join Date: Nov 2004 Location: Nokesville, Va. 
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			Average machine shop could end-mill that off nicely on a few mins.............
		 
				__________________ '15 Dodge - 'Dango R/T Hauls groceries and Kinda Hauls *ss '07 Jeep SRT-8 - Hauls groceries and Hauls *ss Sold '85 Guards Red Targa - Almost finished after 17 years '95 Road King w/117ci - No time to ride, see above '77 Sportster Pro-Street Drag Bike w/93ci - Sold | ||
|  05-16-2022, 02:25 PM | 
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			That’s a super easy machining job.  If you were local, I could do it for you in about 30 minutes.  I don’t see any stress issues.
		 
				__________________ 2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) | ||
|  05-16-2022, 02:58 PM | 
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| Registered Join Date: Oct 2003 Location: Mount Pleasant, South Carolina 
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			Thanks guys. I talk to the machine shop today on the way out of town and he said no problem. These things are big and heavy, so I suspect everything will be good.  What’s funny is, I have the original bolt installed and you can’t see the end of it. The original bolt is 26 mm and I ordered 40 mm bolts. The calipers are fully threaded. | ||
|  05-16-2022, 03:30 PM | 
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| Registered Join Date: Oct 2003 Location: Mount Pleasant, South Carolina 
					Posts: 14,295
				 | Quote: 
 I guess working on a German car made me think in millimeters! The machine shop didn’t have any problems with my numbers. Of course during the week, I work in feet, inches and fractions. We will see when I install them this weekend. I’m hoping if I was off, that it was in taking off a little too much material. I can always shim it to center it on the rotor. These carriers are for an E36 M3, which weighs more than my stripped out E46 330. So stress wise, I think everything will be good. Will find out when I go to the track next month…. Edit. Looking at the pictures made me think, I should just go ahead and replace the bearings while I’m in there.   Last edited by A930Rocket; 05-16-2022 at 04:25 PM.. | ||
|  05-16-2022, 03:34 PM | 
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