IRS Solid Diff

[2J]

I got the IRS solid diff for my TC3 expecting it to make a world of difference as they seem to be very popular at the moment and loads of people have been recomending them, excatly what difference are they supposed to make?, i noticed very slightly better turn in at one corner and that was it. I guess i should be able to notice a bigger difference, maybe its just my driving style (ie. crap), i did qualify 10th overall (WLRC) so im not that bad. Can anyone else tell the differnce between this and the standard diff ?.

Oh one other thing, how important is it that all the wishbones drop under their own weight (with no other components attacted - hubs etc.) ?. I was under the impression that all mine did but i started re-building my car today to find that only one wishbone did. Whats the best way to cure this?, i thought of drilling out the holes to make them slightly wider and thus more free but are their any easier methods ?

[Doomanic]

Roll all the hingepins on a flat surface to ensure they are flat.
Put them in a drill/dremel and polish them.

[DA_cookie_monstA]

Clean and polsih your hing pins, don't drill the wishbones. Then assemble the suspension, and it should be free to move, not tight at all...

So, clean with motor cleaner, then, you can polish with car body polish, that usually works, and doesn't atract the dirt...

[rc_jammer]

Make sure it is the hinge pins first before polishing them or drilling holes out. It could be the plastic/graphite parts being a tight fit against the pivot blocks or the hub carriers.

As for the solid axle, you should actually notice a slight reduction in coner entry steering. You wont really notice this one but it does make a big difference and that is corner exit steering, it is increased allowing you to hug the corner better which sets you up better for the next corner. Also braking can be left a lot later as the car doesn't have the tendancy to spin under breaking.

I think with a lot of people its a time thing as opposed to a feel,

Iv tried different things in practice at tracks for the nationals, sometimes i find the car really feels well, but is actually slower, you may find this with the diff,

I have a one way that i have yet to try, never tried a locked diff/spool

[Stew Noble]

a solid diff is defined as having the effect of giving you an increase in on-power steering.


stew

[Straightspeed]

Having recently broke an front outdrive at a club indoor meeting, with no spare, a mate, with the help of a craft knife, managed to cut a Yok SD outdrive to fit. The only real problem encountered when putting the diff back together was it had no action, solid as steel :o

Once I had got my head round braking a touch earlier and turning in on full power it was ballistic.

Got my new bits now, but I have a feeling I may not change them yet ;D and when I do, I may just make two diffs, one solid, one not 8)