TehRaydarlover's AWD Lover

[Northern]

Interested to see how it all comes together. I definitely want pics of your radial mounts and hats when you do them.

Those rotors are hella expensive! I'm hoping I can use the the 8x7.00" blank rotors when I eventually make a setup, the blanks are like $40 a piece that way.

Edit: I'm talking 160-0483 (11.75"d x 1.25"t) or 160-0471 (11.75"d x 0.81"t) I think there are smaller diameter ones too, but I'm planning on ditching all the 14/15/16" stuff I have now for 17's anyway (tire selection is the main reason)

[kid325e]

Your coilovers look incredible. Did you source those tabs/flanges with GC cut into them from GC or in house? Looks so good.

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[TehRaydarlover]

Interested to see how it all comes together. I definitely want pics of your radial mounts and hats when you do them.

Those rotors are hella expensive! I'm hoping I can use the the 8x7.00" blank rotors when I eventually make a setup, the blanks are like $40 a piece that way.

Edit: I'm talking 160-0483 (11.75"d x 1.25"t) or 160-0471 (11.75"d x 0.81"t) I think there are smaller diameter ones too, but I'm planning on ditching all the 14/15/16" stuff I have now for 17's anyway (tire selection is the main reason)

I've got the hats roughly drawn in Autocad and I'm working on the adapters getting the clearances correct. Talking with Wilwood they suggest 0.080" clearance everywhere to give room for thermal growth. I'll probably give myself a little more even for the face and ball joint.

I've been on the road for work for almost a month now but when I'm home next I want to get the hubs and bearings pressed into the coilovers and test fit the wheels (still not 100% sure they will fit) If I need more clearance to the strut I can adjust the hat thickness to shim the wheel away from the strut. Wilwood suggested making the hats out of 6061 aluminum with a minimum hat thickness on 0.25".

As for mounting the rotor to the hat I'm kind of spinning my wheels. I'd like to do a floating rotor setup but I'm finding it hard to get any details on the clearances for the slots and to t-nuts. It seems like everyone has their own design. You can buy the hardware from wilwood or other sources but again shits expensive :/ Even then I don't know what the slot dimensions in the hat are supposed to be. I don’t want to but I've been thinking of just hard bolt the rotor to the hat. A lot of OEM two piece rotors are like that.

Ya the rotors aren't cheap. 13" is probably the biggest rotor I can fit. I was just running off the assumption that bigger is better as far as rotor diameter. Looks like you have to go down to 12.19 or 11.75" before they are under $200 a pop. Idk, is the inch or so larger diameter worth the extra cost?

[TehRaydarlover]

Your coilovers look incredible. Did you source those tabs/flanges with GC cut into them from GC or in house? Looks so good.

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Thanks! The sway bar mount and reinforcements were all fabricated and welded in by GC.

[nando]

It's really the mass, not the diameter - you get more leverage with a bigger rotor, but really, the E30 is small and light, you'll be more limited by tires I think than brakes. You could go with thicker rotors for more thermal capacity (bigger heat sink) and if it saves a lot of money on consumables I think that is worth the trade off.

But why reinvent the wheel? Doesn't massive carry all of this stuff already? His kits seemed affordable when I looked at them last.

[TehRaydarlover]

Sure, makes sense. Brake caliper acting at a larger radius can generate a larger moment than the same caliper at a smaller radius.

I was also thinking the larger diameter and thicker rotor would probably last longer. Like you say bigger heat sink more wear surface area.

With the different offset for the 1er/z4 hubs his kit wouldn't be bolt on. At the very least I would need a custom hat to make up for the offset. Does Lee's front Monster E30 kit fit the front of the stock ix? I don't have any RWD front struts to compare but I would think the location of the caliper mount, strut tube, and hub face are different than the ix. But maybe not, do the front brakes off an ix fit a rwd? I thought there was a difference between Grilling and ATE calipers.

Anyway, I'm an engineer, I should be able to figure it out lol. Built not bought, right?

[Nisse Järnet]

Im using 310mm (12,2") rotors on my turbo IX and it feels good :) No problem on the track, not yet anyway. But i didnt more like 4-6 laps at a time either so... :P

[Northern]

I prioritize consumable prices over maximum braking for the setup, so I wouldn't bother going over 12.2, and would probably choose the 11.75 in the end, in either 0.81" or 1.25"

I think the front massive kit should interchange between RWD and iX, just on the basis that I ran RWD stuff on my iX before and didn't see any difference.

I really like the massive stuff, but you need to buy the calipers/rotors separately now which adds to shipping costs, and last time I asked, the Installer kits are now up to $8xx per axle, which is significantly more than what the older threads seem to say.

If you have the knowledge/equipment and the time to spare, then why not take a shot at it.

[nando]

Ix and rwd brakes are the same - so yes, massives kit fits an ix too.

[ThatM20Guy]

Just looked over the thread. Pretty awesome!!!

I love the idea with the front diff support. How much extra torque do you think it will be able to handle?

[TehRaydarlover]

Ah, for some reason I thought the ix and rwd brakes were different (at least the caliper mount position anyway), good to know! Ethier way, with the 135i hubs up front I would need a custom hat for the massive adapters to work.

12.2" rotors would probably be more that sufficient for road and light track use, like Nisse has done. Even the cheapest 12.2" Wilwoods are $100, and anything up to 13" is about the same price at $200. Like you say it's not until you get the 11.75" straight vane are they below $50 a rotor. Idk how to compare estimated life of the rotor, besides strictly the difference in mass and surface area. I'll keep searching for a cheaper alternative to the $200 13" Wilwoods, maybe come up with something else.

I spent some time with the romer arm today after I pressed in my bearings and hubs. I'm going to bring in the front wheel tomorrow and scan it also. Planning on mocking everything up in Design X and Autocad. Hopefully minimize the guess work, and prevent me from going to bolt it up and ending up saying "well fuck" haha. I can share the files when I'm done if anyone else wants to play around with it for themselves.

[TehRaydarlover]

Just looked over the thread. Pretty awesome!!!

I love the idea with the front diff support. How much extra torque do you think it will be able to handle?

Thanks! I ran into a small snag during final welding but hopefully I can post that write up sometime soon(ish)

No idea how much stronger it will be, but there's only one way to find out haha.

[TehRaydarlover]

Also picked up this stuff the other day, all 321ss :D

[nomansland92]

Also picked up this stuff the other day, all 321ss :D

I think I know what that stuff is for [emoji1]

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[Nisse Järnet]

My brake setup is pretty cheap, but pretty heavy too :P I will probably replace the calipers with aluminum ones and maybe also two piece rotors...

Uh, i see you have som welding to do! :D