i have been reading threads on this all day and have a couple questions.

i was given an es master kit from a friend. i understand that ES bushings for RLCA and RTA cause binding, etc. Apparently oem or Mugen is the way to go for those two.


Which ES bushing can i use, seeing that they're free in this case? fronts? etc?

TIA

 

I don't believe the master kit comes with RTA bushings. Mine didn't anyways.

That was the only ones I ever heard of binding issues. Lower control arm bushings should be no problem.

 

I put them in all the lower and upper control arms, did not install the boots. The large bushigns in the trailing arm is not encluded in the kit and should not be changed. Swaybar endlink were also changed. Shifter busthings also should be changed (amzing how much better it was with a new shifter bushing)

 

the two poly bushings that have been specifically identified as binding is the front lower control arm bushing (the inner one to the chassis) and the big rear trailing arm bushing, so far.

it seems that any bushing that has more than 1 axis of rotation would cause binding. other than the shock bushings, i can only think of the upper control arm bushings as the only bushing constrained to one axis of rotation.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">poly bushings that have been specifically identified as binding is the front lower control arm bushing (the inner one to the chassis) .
</TD></TR></TABLE>

The amount of 2 axis movement in the front lower control arm inner bushing is so minimal (the minor pull of the radius rod) that there is no way you'd experience any binding by using poly.

 

theres specific evidence otherwise... unless you have measurements of your own, i wouldnt be so quick to discount anyone elses measurements who has done back to back measurements.

 

Which chassis are we talking about here? I wouldn't expect 2-axis motion on the front LCA of a DC or EG.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Agent Smith &raquo;</TD></TR><TR><TD CLASS="quote">Which chassis are we talking about here? I wouldn't expect 2-axis motion on the front LCA of a DC or EG.

</TD></TR></TABLE>

It certainly happens in the rear LCA....

 

yeah, im talking EF.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">yeah, im talking EF.</TD></TR></TABLE>

I ran my suspension up on the jack with no shock to see where the top of travel was so I could "measure" the travel I'm using (1" by the way), and the relative movement front to back of the LCA was "indescernable" to the naked eye. And yes I have ES front inner LCA bushings.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by .RJ &raquo;</TD></TR><TR><TD CLASS="quote">It certainly happens in the rear LCA.... </TD></TR></TABLE>

The large bushings in the TA is in the rear has two axis roation but the TA is acuatle the upright. The control arms always have 1 degree roation or your geometrtry changes.

I assume that you were refering to the TA bushings rather then the Upper or Lower Control arms? Right?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B HATCH &raquo;</TD></TR><TR><TD CLASS="quote">I assume that you were refering to the TA bushings rather then the Upper or Lower Control arms? Right?</TD></TR></TABLE>

No. The lower control arms on a EF/DA/EG/DC/etc do not only move on one axis - and thus the reason why I think poly is a very bad idea.

 

Every bushing in the rear moves on multiple axis, but all the bushings in the front for dc,eg,ek,move on one axis every bushing in the front can be soild delrin that moves in only one direction with no bind.
EXCEPT for the bushing for the shock wich will pivot about 3 degrees and will put a lot of side load on the shock shaft if this is solid, this should have a spherical bearing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6vtec1 &raquo;</TD></TR><TR><TD CLASS="quote">Every bushing in the rear moves on multiple axis,</TD></TR></TABLE>

I can definitely vouch for that, having disassembled and reassembled mine a couple times. Had to jack up the TA to get the LCA bolts to align.

That being said, I still think poly should be fine in the rear LCA and UCA because poly is still somewhat flexible and the amount of secondary axis rotation is only a couple degrees within the range of normal suspension movement, especially if you're running high spring rates. That's just my gut feeling on it, though. I still use stock bushings personally.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6vtec1 &raquo;</TD></TR><TR><TD CLASS="quote"> but all the bushings in the front for dc,eg,ek,move on one axis every bushing in the front can be soild delrin that moves in only one direction with no bind.
EXCEPT for the bushing for the shock wich will pivot about 3 degrees and will put a lot of side load on the shock shaft if this is solid, this should have a spherical bearing.</TD></TR></TABLE>

That's what I would expect from looking at it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Agent Smith &raquo;</TD></TR><TR><TD CLASS="quote">Which chassis are we talking about here? I wouldn't expect 2-axis motion on the front LCA of a DC or EG.

</TD></TR></TABLE>

DC.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6vtec1 &raquo;</TD></TR><TR><TD CLASS="quote">Every bushing in the rear moves on multiple axis, but all the bushings in the front for dc,eg,ek,move on one axis every bushing in the front can be soild delrin that moves in only one direction with no bind.
EXCEPT for the bushing for the shock wich will pivot about 3 degrees and will put a lot of side load on the shock shaft if this is solid, this should have a spherical bearing.</TD></TR></TABLE>

"bushing for the shock" refers to upper shock mount, correct?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eg6vtec1 &raquo;</TD></TR><TR><TD CLASS="quote">
EXCEPT for the bushing for the shock wich will pivot about 3 degrees and will put a lot of side load on the shock shaft if this is solid, this should have a spherical bearing.</TD></TR></TABLE>

3 degrees pivot for how much suspension travel?