 » Site Navigation | | | | » Recent Threads | 1999 M3 Swap 09-07-2023 10:10 PM 05-02-2024 08:18 PM 6 Replies, 350,308 Views | |  |  |  | |  04-23-2012, 08:01 PM | #16 | | Member Join Date: May 2009 Location: CT Posts: 48 |
Quote: Originally Posted by cooljess76  I don't think the 1mm shim is really necessary since the pads wear more than 1mm. The 4mm difference in diameter might even clear. | True, although it don't think it will hurt. The thing that looks different than on the Ti rotor is the distance from the hub to the surface looks like it sticks out less. Although it could be the vented portion playing tricks on my eyes, I just need to the grab the Ti rotor from my garage to bring into work and measure/compare.
Last edited by BenM; 04-23-2012 at 08:22 PM. |  |  | | 04-24-2012, 01:32 AM | #17 | | Member Join Date: May 2009 Location: CT Posts: 48 | 
No dice, E46 323i does not work. I guess the 318ti rotor mounts rotor surface way further inboard than the E46 323i (pictured below), which doesn't even come close to allowing the E46 323i rotor to match up with the caliper carrier. Although the E36 M3 Caliper will bolt to the 318ti Caliper Carrier with no problems, the E36 M3 Caliper Carrier does not bolt to the 318ti Trailing arm. The distance between the threaded holes on the E36 M3 is more than that on the 318ti, so both bolts cannot be used and therefore not work. Now the E36 M Caliper will bolt to the 318ti carrier which is great, but the 318ti caliper carrier is only sized for a 10mm rotor, therefore you are limited by that as well. For now I guess the best solution for using E36 M rear stuff is to use a 10mm spacer on the other side of the pad. Going to try and machine a spacer up tomorrow, to match up with the pad and also utilize the holes on the caliper. Hope this helps you guys, sorry to be the bearer of bad news! E36 318ti rotor (left) vs. E46 323i (right) rotor     | | | | | 04-24-2012, 02:07 AM | #18 | | Senior Member Join Date: Jul 2009 Location: MD/PA/DC Posts: 1,629 |
And I take it the Z3M/Mcoupe rotor won't fit? __________________  No more ti. | | | | | 04-24-2012, 02:14 AM | #19 | | NOBODY F's with the Jesus Join Date: Oct 2006 Location: Ventura California Posts: 7,824 |
Aww man, what a let down. Hope you didn't spend too much on the e46 rotors or at least have another use for them. | | | | | 04-24-2012, 02:17 AM | #20 | | Member Join Date: May 2009 Location: CT Posts: 48 |
Quote: Originally Posted by familytruckster And I take it the Z3M/Mcoupe rotor won't fit? | Z3M/Mcoupe is the same as the E36 M3, which requires Z3M rear trailing which are big $$ and hard to find. I'm just trying to find a way to use E36 M Rear Calipers, without spending a ton of money (i.e. Z3M Trailing arms or aftermarket big brakes) | | | | | 04-24-2012, 02:19 AM | #21 | | Member Join Date: May 2009 Location: CT Posts: 48 |
Quote: Originally Posted by cooljess76 Aww man, what a let down. Hope you didn't spend too much on the e46 rotors or at least have another use for them. | Yea I was a bit bummed too. No big deal though, they only cost me $25/each. | | | | | 04-24-2012, 02:39 AM | #22 | | Senior Member Join Date: Apr 2007 Location: Elizabeth City, NC Posts: 3,877 |
What about machining the ti caliper carrier to accept a larger rotor? Assuming you could find one with the proper hat offset. __________________ ~Dave~
98 328ti Morea Grun slicktop
11 128i space gray slicktop
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Search | RealOEM | | | | | 04-24-2012, 04:00 AM | #23 | | Member Join Date: May 2009 Location: CT Posts: 48 |
Quote: Originally Posted by spidertri What about machining the ti caliper carrier to accept a larger rotor? Assuming you could find one with the proper hat offset. | I was considering that, but they are much less beefy (i.e. not as much material) as the M3 caliper carriers which might pose a problem. Another option I was thinking about was finding some junk Z4 3.0si rotors (294mm x 19mm) and checking the hat offset. If applicable, I could probably turn them down so the M3 calipers fit over, and machine the Ti Carrier to accept the 19mm disc. | | | | | 04-24-2012, 04:27 AM | #24 | | Junior Member Join Date: Oct 2007 Location: Florida Posts: 8 |
BenM: I have a solution. It has been done before, I just can't seem to find the thread. The guy who worked with Massive Lee to develop his kit first did this. You mill down the old Ti rotor and bolt on a new rotor. This rotor should work: It is within a millimeter of ti rotor and it is 21mm thick... should allow use of E36 M3 calipers. http://www.wilwood.com/Rotors/RotorP...temno=160-5839 | | | | | 04-24-2012, 06:40 PM | #25 | | Junior Member Join Date: Oct 2007 Location: Florida Posts: 8 |
| | | | | 04-24-2012, 06:45 PM | #26 | | Member Join Date: May 2009 Location: CT Posts: 48 |
:hats off
Thank you so much Tiggin! That is some great info, I will try and order those rotors, they appear to be just the right size.
The slotted portion of the caliper carrier that holds the rotor still needs to be machined out by 10mm, but this looks like it could work!
-Ben | | | | | 04-24-2012, 07:15 PM | #27 | | Junior Member Join Date: Oct 2007 Location: Florida Posts: 8 |
Quote: Originally Posted by BenM :hats off
Thank you so much Tiggin! That is some great info, I will try and order those rotors, they appear to be just the right size.
The slotted portion of the caliper carrier that holds the rotor still needs to be machined out by 10mm, but this looks like it could work!
-Ben | Ben: The rotor I linked looks like it may work. Before you buy one, do this first: Measure the inner hub of the stock Ti rotor. It needs to be no wider than 5.59 inches. My guestimate is that it may be close. If you post the measurement, I'll search for a rotor that will work. I'm also willing to split the cost of a rotor for you to experiment with... | | | | | 04-24-2012, 07:21 PM | #28 | | Member Join Date: May 2009 Location: CT Posts: 48 |
Quote: Originally Posted by Tiggin Ben: The rotor I linked looks like it may work. Before you buy one, do this first: Measure the inner hub of the stock Ti rotor. It needs to be no wider than 5.59 inches. My guestimate is that it may be close. If you post the measurement, I'll search for a rotor that will work. I'm also willing to split the cost of a rotor for you to experiment with... | Will do. I have some other projects that I'm working on so it may take me a few days... Definitely willing to split the cost, but will let you know on the dimensions. | | | | | 04-24-2012, 10:03 PM | #29 | | Senior Member Join Date: Apr 2010 Location: Scranton/Wilkes-barre area PA Posts: 454 |
Subscribed! looks like there might be a solution soon! __________________
***Derek***
^^Lola^^
Pioneer radio/ Pioneer 6-Disk CD Changer/ JBL 601.1 Grand Touring Amplifier/ Bilstein Sport shocks/ Bilstein e36sedan springs/ Green LED Courtesy Lights
Accident Counter: 3...  | | | | | 04-25-2012, 05:29 AM | #30 | | Member Join Date: Mar 2012 Location: Chandler, Okla Posts: 52 |
If all else fails I hope not but was thinking couldnt there be a way to machine an adaptor for the m3 carrier | | | | | |
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