A bit of back story: I have another thread in the racing forum about the fact that we keep roasting wheel bearings on our 1990 civic LX sedan, which is an endurance race car and is raced for up to 25 hours at a time. Looking for solutions to for our short life of front wheel bearings, and one of the fixes that has come up is using a bigger bearing.

Well, I figure one way to get a bigger bearing is just run a different honda knuckle that uses a larger OEM bearing.

That said, which knuckles are compatible with EFs? Some custom work to make it fit is fine.

I have heard DA integra knuckles work, does anyone know what size the bearing is in that knuckle?

How about like Accord, Legend, Vigor, Prelude knuckles? Any of them work?

Better yet, finding a knuckle that works and has a bolt in integrated hub/bearing unit would be awesome. Super easy to change at the track.

Any opinions and experience is appreciated! Thanks.

 

Im pretty sure tons of them fit, some with litte modifications.

I know DA's fit, Ek's fit. DC's fit.
Im sure its endless

 

DC, EG, EK knuckles are not right for the ED chassis.
DA works, but do NOT use the UCA.

DA has a larger bearing and bigger brake.

From the ED chassis the EX trim Civic is typically the sought after upgrade. It shares the larger brake of the DA, but has the smaller bearing of the ED.

SiR knuckles are typically overlooked because they aren't readily available in the US. I personally picked up a set from an importer and never regretted the purchase. They have a beefed up knuckle body, have the bigger bearing, and have the large brake. A little heavier, but best bet IMO for a track car with better performance and duability. Requires simple tie rod modification.

 

The problem you are going to run into is your axles working with the bearing/hub assembly you swap in. Personally I, run Integra (DA) knuckles on my track cars as they have bigger bearings. You have to compensate as the toe will be off but it's not like you are trying to get 50k miles out of your tires either. The Integra splines will match up to what you already have... Somewhat odd you are burning up bearings though... I change mine maybe once a year at worst - sometimes even longer...

 

Here's a link to the geometry issue with the DC knuckles.
http://www.htarchive.net/showthread.php?p=43404781

Caster and toe. Probably something that could be modified to setup on an alignment rack, but seriously not something I would even consider taking on to a track.

 

something youll find with the DA knuckles is that the extra height of the knuckle means youll have a sharper toe/camber curve and will/may/has caused issues on a race crx/civic. most people use them on the street so its not a big deal, or even on a race track most drivers arent even sensitive to it even if they claim they use it on their "racecar". just stating that you should be aware of it and you should consider how that affects your handling.

of course your class has to allow bigger brakes than what your car allows in order to use the DA knuckles. if thats already allowed, then gravy.

the 90 civic EX knuckle uses the same bearing as DX/LX but a different hub which isnt available anymore so thats of no use to you compared to the DA.

 

When all you do is turn left it's not a big deal Tyson... The OP never said what type of racing exactly other than endurance... This can be many things - as I have raced in 24 hour circle track relay races...

 

Mostly road course racing. But we have raced a few times at a roval, which is 3/4 of a nascar banked oval + infield road course. So mostly we blow the RF wheel bearing.

 

has anyone played around with accord/prelude/legend knuckles? Anyone have a set of these sitting around they can take a pic of/measure?

 

no, they wont work.

 

what about them makes them not work?

 

theres nothing about them, the dimensions, the geometry, the brakes, the hubs, that make them work.

 

hrm, do you have proof of this? Can civic hubs be pressed in? Do you have firsthand experience? Can't be modified to work? Can you tell me which measurements are off and by how much?

 

OP... just listen to Tyson - Yes he knows from first hand experience or knows directly somebody who does...

You are diving into it too much... If you really wanted to know for sure you would be going to a salvage yard, parts store, ect. And be comparing them first hand rather than being lazy and wanting every body else to do all the work for you... Not trying to be mean, it just is what it is.

 

Not asking anyone to do work for me, just trying to benefit from knowledge and work already done. That's what a forum is about, benefiting from the collective knowledge of others. If nobody has the answer, junkyard it will be. Don't need to reinvent the wheel.

Just asking for details.