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I used timken's on the rear of the daily. But I wouldn't know about risking them on the track yet. There's also the Ceramic place on facebook @ProBearing.
I tried "someone's" billet water pump underdrive pulley. My car overheated at an autocross on a 75* day. Went back to stock and it was fine at the next event on a 90* day.
Also, holy **** hubs got expensive for these cars. All four almost $1k wholesale price from my dealer. F.
I was JUST thinking about that...and nevermind lol. I've never seen pitting on my pumps either, but I always use OEM and replace it every time we get in there.
I have a GTR front wheel bearing (the Non-Nismo which is just 12mm vs 14mm studs) and its swagged or whatever its called not relying on axle torque to keep together. This will work with a "custom" upright and fits our axles. Its $190 right now.
I dont know if the rear GTR bearing will fit our axles, I should check with ER maybe and see if they have one sitting around to match up with an axle. Could be a new direction to move in for my parts.
Yea you should only be worrying about cavitation if you're spinning 10k+ and you're doing it for a long time.
As far as wheel bearings go, if we're looking for a motorsport grade bearing solution and the GTR bearings end up not working, it'd be possible to machine a new bearing housing to accept a standardized ceramic bearing cartridge, we would just need to find a ceramic bearing that has the correct ID for our hubs. That'd also keep from having to redesign uprights and guys with factory upgrights could use them too.
I used timken's on the rear of the daily. But I wouldn't know about risking them on the track yet. There's also the Ceramic place on facebook @ProBearing.
I thought timkens are good enough for the rears. My other racecar has a solid diff tho
Well bad news / good news. The bad news is the rear GTR bearing is way too big. The good news is the DSS can make an outer cup that fits the standard GTR front bearing which is significantly beefier than stock rear bearing. So it might be possible to do 4 of the same GTR bearings all around. Front isnt nearly as big of a deal as the rear and of course rear is harder with the axle cup difference. But track guys are going through multiple rear bearings a season.
Well unless you can find a wheel bearing that stiffer and stronger than OEM and fits the stock axle. You can try the science experiment of building your own but the GTR bearing is super robust and known.
Checking the CAD now on the bearing. Front shouldn't be an issue but would push wheel out maybe 5mm. Need to see how much length travel the stock axle has but 5mm would match stock.
Rear looks like it will fit the GTR bearing without too much modification to the model. I cant seem to find a stock rear wheel bearing in my stash so I cant measure to see what kind of offset is needed for axle length and ABS ring alignment. This would definitely require removing E-brake so SCCA SM class would have to figure something out.
I have considered making a diff mounted drive shaft e-brake to get the unsprung weight off the rear. Downside here would be using the Ebrake to load the drivetrain when launching. Alternatively could plumb a line lock but not sure how to disengage with the clutch since I pull clutch out to engagement to preload everything. Currently I hold the ebrake at the line.
Well unless you can find a wheel bearing that stiffer and stronger than OEM and fits the stock axle. You can try the science experiment of building your own but the GTR bearing is super robust and known.
Basically every ceramic wheel bearing of a similar size will be stiffer. The bearing itself doesn't interface with the axle at all. Our wheel bearings consist of 3 parts, a bearing housing, a bearing cartridge, and the hub which is pressed into the bearing cartridge. It's certainly possible to design a new housing that fits a chosen bearing, and then the stock hub would press into that bearing. Keeps from altering any geometry or stretching axles and is useable by anyone without having to franken together parts at a considerable expense. Only part that would have to be designed is a 4 bolt housing.
Looks like the Pro Bearing place Matt mentioned is just modifying the stock housings and putting in their own ceramic bearings. I'd certainly be looking at getting these before doing anything custom.
Basically every ceramic wheel bearing of a similar size will be stiffer. The bearing itself doesn't interface with the axle at all. Our wheel bearings consist of 3 parts, a bearing housing, a bearing cartridge, and the hub which is pressed into the bearing cartridge. It's certainly possible to design a new housing that fits a chosen bearing, and then the stock hub would press into that bearing. Keeps from altering any geometry or stretching axles and is useable by anyone without having to franken together parts at a considerable expense. Only part that would have to be designed is a 4 bolt housing.
Looks like the Pro Bearing place Matt mentioned is just modifying the stock housings and putting in their own ceramic bearings. I'd certainly be looking at getting these before doing anything custom.
This is getting in that fallacy realm of "all you gotta do is". But theres no one willing to do it. Using an OTS bearing all around and one time kit purchase of upright and axle end might be high barrier to entry but Im not willing to try and create a custom hub and just trying to figure out a long term solution for track guys that will potentially by my other parts as well :P
Originally Posted by kaj
If all this is where we're heading, it's definitely time to jump to a newer platform.
People keep doing this, then coming back realizing everything else has its own challenges. One major issue, is lack of deep understanding and social/aftermarket support. I see a big difference in car groups creating the easy stuff and then things like the Evo (and other cult-ish vehicles) where owners really get into the barely necessary but infinitely useful things.
This is getting in that fallacy realm of "all you gotta do is". But theres no one willing to do it. Using an OTS bearing all around and one time kit purchase of upright and axle end might be high barrier to entry but Im not willing to try and create a custom hub and just trying to figure out a long term solution for track guys that will potentially by my other parts as well :P
People keep doing this, then coming back realizing everything else has its own challenges. One major issue, is lack of deep understanding and social/aftermarket support. I see a big difference in car groups creating the easy stuff and then things like the Evo (and other cult-ish vehicles) where owners really get into the barely necessary but infinitely useful things.
I just like buying oem stuff that fits. I've been down the bespoke road before. Not for me, any more.
