NoRotors.com - RX7 Engine Swap Forum
Technical Information => Suspension/Brakes/Wheels => Topic started by: Copper280z on March 06, 2012, 02:37:07 PM
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I've already lunched my N/A diff by wheel hopping and now that I've got a T2 I'd like to keep it intact. I'm planning on doing the rear bushings, dtss, and a pinion snubber, but is there anything else that I should do? Rear diff mounts? Subframe bushings? Any spherical bearings? Should I go for delrin or poly?
I have poly everywhere on my datsun, and I could hardly tell a difference in noise, but it felt a ton better to drive.
Also, will s4 calipers and rotors bolt onto an s5 subframe? I've got an extra s5 and would like to do all the work to it and then swap it out in an afternoon.
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I did diff mounts (MMR) and a pinion snubber -no wheel hop at all -oh also the front diff mount.
I also run a OS Giken 1.5way diff
works perfect for me.
What are you doing with the car? drag?
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General shenanigans, drag, maybe an autocross if I feel brave.
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General shenanigans, drag, maybe an autocross if I feel brave.
I would say do all the diff mounts and a snubber -hammer the shit outta my car and have had no problems -running 285/40/17
drag maybe a different story -I drift
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So what about the control arm bushings and subframe bushings?
Do you think delrin or poly?
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So what about the control arm bushings and subframe bushings?
Do you think delrin or poly?
I did the poly subframe and rear diff bushings -left the control arms alone... the needle bearing ones are nice -but expensive.
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Here's what I did and I drag race. No real perceptible wheel hop any longer. (Oh and Delrin Diff bushings)
http://www.norotors.com/index.php?topic=3659.0 (http://www.norotors.com/index.php?topic=3659.0)
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rears are spinning pretty much the whole run
Andrew Russell In Car (http://vimeo.com/23448897)
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The more soild you go the more hop you will reduce. If you dont mind the noise, go delrin subframe, delrin rear diff and a solid front diff mount. Also make sure you have DTSS eliminators, spherical control arm bearings and individual camber adjusters. Also stiffening the rear shocks may help along with better tires.
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The more soild you go the more hop you will reduce. If you dont mind the noise, go delrin subframe, delrin rear diff and a solid front diff mount. Also make sure you have DTSS eliminators, spherical control arm bearings and individual camber adjusters. Also stiffening the rear shocks may help along with better tires.
DTSS are a must -with the bushing I deff noticed much more road noise -but it did not bother me... there really is nothing comfortable about my car -at this point it's a track car. That being said I did drive with the solid bushings ect for about 6mo as a DD -did not bother me.
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When my car was still IRS it used to wheel hop like a mother early on
Only thing I did was flip the caps on the rear diff mounts and add a pinion snubber I could adjust the preload on ( it was different that what you see guys do here)
No wheel hop at all after that, even launching on mt radials out on cold roads
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Care to elaborate on the pinion snubber?
I've got poly in the Z and it doesn't bother me at all, suspension and diff. I would like to keep the rx7 somewhat quiet, I bet delrin is a bunch louder than poly.
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Here's a diy, i'm doing this as soon as i get it out of storage.
http://www.rx7club.com/showthread.php?t=867300 (http://www.rx7club.com/showthread.php?t=867300)
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Care to elaborate on the pinion snubber?
here is how i had done mine, bottom side looks the same as the top. I had it cranked down hard on the nose of the diff
(http://i152.photobucket.com/albums/s167/rotary1307cc/Picture668.jpg)
all stock wore out bushings...... only thing not stock was the diff caps flipped and the snubber.............. wheel hopped like a mother before this
cold DRs, leaving off antilag and a little NA rear, zero wheel hop
Evo vs Grand National w/ an RX7 (http://www.youtube.com/watch?v=WC5YJgW6I4A#)
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What is the snubber sitting against on the diff?
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Snout of the diff. I had the same on my car also.
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yes, it is just ready rod. the end of the rod is pushing dirctly down on the nose of the diff
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Nose, snout, whatevs.
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Nose, snout, whatevs.
:cheers:
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The pictures are not of my car, but one they show a pinion snubber installed in a FC.
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Can one of you measure the rubber part of the snubber for me? I need to know if the one at work will work well.
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I lot of folks have used this one;
http://www.summitracing.com/parts/RNB-31052/ (http://www.summitracing.com/parts/RNB-31052/)
Details here;
http://www.norotors.com/index.php?topic=3793.0 (http://www.norotors.com/index.php?topic=3793.0)
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Ha thats funny i work at O'reilly's and we carry Dorman. Sad part is that part is no longer at the warehouses....
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dtss eliminators
delrin subframe mounts
snubber
sphericals
ind camber adjusters
comps mounts w/ extra preload
adjustable toe links
decent coilovers
perfect pinion angles
and it still hops at launch (not badly but it's there). Could go solid but that's not for a street car.
The above is one of the main reasons I'm going 8.8.
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my car hops BAD when its wet, and a little bit in dry (with kumho V710's).
only thing on joel's list i dont have is known pinion angle, but i'm gonna set that shortly.
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What is the snubber sitting against on the diff?
Yeah -it stops the diff from moving
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I know what it does, I just wondered where was the best place to put it. I think I've seen people put it a few different places, the best place is clearly as far out on the pinion as possible.
My car hops BAD, any time there's any tire spin.
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Does anybody make poly rear diff mounts or is delrin the only game in town? The mazdaspeed ones are WAY too expensive.
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Does anybody make poly rear diff mounts or is delrin the only game in town? The mazdaspeed ones are WAY too expensive.
Mazdaspeed or Delrin. You could try stiffening up you stock mounts DIY style.
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Just ordered the delrin, hopefully they're not too obnoxious.
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The rubber portion of the Dorman snubber is 2-3/4" tall.
I just ordered some stiffer rubber rear mount bushings from MazdaTrix as well as the comp front mount. Hopefully these will work until I can convert over to the Ford IRS 8.8 with the Ronin kit.