FC3S Differential Pinion Brace (By Ray Platek)

[jim3]

Every car reacts differently.  Ray has cut 1.7's on the QTPs, my best on those tires is a 1.89 with most runs 1.9+.  My best on 245 Nitto dr's is 1.85, 1.86, 1.88 on a very well prepped track.  Most of my times on the Nitto's is 1.9+.
 
Power level???  I can run 12.2's at 113+ but sure as hell can't get a good 60'.
 
So...borrow a set from someone and see how you like them whether it is slicks or dr's.
 
The 16x9.5 QTP's are a little taller and did help my mph by 1 or 2 mph. 
 
Keep in mind that the Nitto dr's can be run on the street and I've been doing that for a couple of years.  They sure as hell beat the BFG's I had before.
 
As a disclaimer, my car has transmission and driver issues so all that I've said doesn't amount to sh*t anyway.
 
 

[overkill-lt1]

congrats on your results. get some good tires on there and watch what happens

[Rayminator]

Jim...........I was cutting consistant 1.63's & 1.64's not 1.70's

More tire, would have shown better results, but the QTP's worked well for the size that they were.

[noskillz]

I definately need to do this to my car, the mount has broke twice now.  Hopefully this will solve my problem, I just need to get another rearend first!  =(

[atli126]

 


 

 

[atli126]

I used stock s4 sway bar links, I have 3 more pm me if you need to buy one

[texfc]

Let us know how the link holds up.  I might switch mine over to that link if they don't break.

[atli126]

Should hold fine...

[Rayminator]

Do this, and forget about ever ripping the mount off of the crossmember.

All the other mods to firm things up, only make it better.

[Rx5.0]

Supp guys so I'm about to do this to my rx7 with a 5.0 swap I just need to know the width of the plates used thanks

[bikedad]

Supp guys so I'm about to do this to my rx7 with a 5.0 swap I just need to know the width of the plates used thanks

Check the first post in this thread. All the info is there.

[SOB Racing]

If you used an adjustable heim setup, could you use this to set your pinion angle?

[cool]

If you used an adjustable heim setup, could you use this to set your pinion angle?

You will only get a slight amount of downward movement since the stock pinion mount has as a small snubber to keep the pinion off of the subframe.  if you cut that off, then I suppose you could get it to move the pinion down but there will be a constant upward load againt this brace.  I think it would want to tear the plates off of the subframe, or break something somewhere.

[SOB Racing]

so basically you would be making the rubber mount "harder" by eliminating movement.

[cool]

Effectively making it solid.  Same as welding a plate across the rubber, which has been known to crack subframes.  You wouldnt get the movement that Ray designed into his limiter because (assumingly) you would already have the pinion loaded upwards or downwards to obtain your desired pinion angle.