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Old 01-25-2013, 02:56 PM   #29
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It's because the Perrin piece isn't compatible with the whiteline bushing. It's pretty obvious when you have to trim the whiteline bushing. It's not recommended because it just sends vibrations into the cabin. Remove the Perrin bolt and use the stock one.
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Old 01-25-2013, 03:06 PM   #30
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It's because the Perrin piece isn't compatible with the whiteline bushing. It's pretty obvious when you have to trim the whiteline bushing. It's not recommended because it just sends vibrations into the cabin. Remove the Perrin bolt and use the stock one.

if we think that all thats happening is that the perrin bolt is just transferring more vibration i think ill leave it... im going to check again to make sure everything is tightened correctly and if it is ill just leave it be
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Old 01-25-2013, 03:13 PM   #31
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Quote:
Originally Posted by post_break View Post
It's because the Perrin piece isn't compatible with the whiteline bushing. It's pretty obvious when you have to trim the whiteline bushing. It's not recommended because it just sends vibrations into the cabin. Remove the Perrin bolt and use the stock one.
Correct. @F1point4 did clarify that the two pieces were incompatible "at this time" but he also stated that you can grind/ shave off the inside diameter of the whiteline bushing to allow the Perrin piece to fit. Also why I wanted to keep tabs on this thread to see if he found a solution.

Still waiting. ...
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Old 01-25-2013, 03:54 PM   #32
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Correct. @F1point4 did clarify that the two pieces were incompatible "at this time" but he also stated that you can grind/ shave off the inside diameter of the whiteline bushing to allow the Perrin piece to fit. Also why I wanted to keep tabs on this thread to see if he found a solution.

Still waiting. ...
Yeah, he found a solution, don't use it with the whiteline bushing. You can drill out the whiteline to make it work like the poster above, but with both pieces installed you get harsh vibration and loud cabin noise. I really don't understand what you think you stand to gain by running both parts. By using both parts you're effectively making the transmission mount a solid piece of metal.
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Old 01-25-2013, 04:10 PM   #33
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I guess its mostly in first gear.. its still there in other gears, just not as noticeable...

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Old 01-27-2013, 12:27 AM   #34
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I just completed the whiteline transmission bushing and the Perrin rear shifter bushing today. No additional noises to report. Install was super easy just take your time. Also to note I did this from jack stands. I layed cardboard down underneath the car to make moving around under there easier. Not enough room for a creeper.
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Old 01-27-2013, 01:48 AM   #35
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I guess its mostly in first gear.. its still there in other gears, just not as noticeable...

Rofl, those sound like straight cut gears. Kinda cool.
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Old 01-27-2013, 03:29 PM   #36
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Rofl, those sound like straight cut gears. Kinda cool.
it sounds cool to me too! as long as its not a bad thing that i can hear it haha
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Old 01-30-2013, 08:42 PM   #37
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Yeah, he found a solution, don't use it with the whiteline bushing. You can drill out the whiteline to make it work like the poster above, but with both pieces installed you get harsh vibration and loud cabin noise. I really don't understand what you think you stand to gain by running both parts. By using both parts you're effectively making the transmission mount a solid piece of metal.
http://www.ft86club.com/forums/showthread.php?t=26044


So....in other words. ...what this ^^^ guy did is totally pointless, and the fact thst both perrin and whiteline created these are also pointless. ..?
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Old 01-31-2013, 01:22 AM   #38
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I guess its mostly in first gear.. its still there in other gears, just not as noticeable...


Same here mate! I have installed these parts over the weekend and the car sounds a lot more noisy than what it was. But I am ok with it. I remember tighten the bolts so i am ok with it. Maybe if I take the Perrin bushing out it wont be as noisy...but if you think about it is like having the Cusco kit with the Whiteline kit. I am ok with it as long as it does not cause any damage on the long run...which I dont think it will.I will double check.
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Old 01-31-2013, 01:27 AM   #39
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Originally Posted by post_break View Post
Yeah, he found a solution, don't use it with the whiteline bushing. You can drill out the whiteline to make it work like the poster above, but with both pieces installed you get harsh vibration and loud cabin noise. I really don't understand what you think you stand to gain by running both parts. By using both parts you're effectively making the transmission mount a solid piece of metal.

Mate, the whiteline helps with the lateral movement of the gearbox (faster acceleration in corners) and Perrin helps with the up/down movement...therefore running both makes sense. Check Cusco kit which is a bit of both but less support on the lateral movement.

By running them both you basically make the transmission very tight therefore you send slightly more power to the wheels.

Yes, it would be a bit more noise in the cabin but each to their own I guess.!
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Old 01-31-2013, 09:53 AM   #40
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Quote:
Originally Posted by ProjectD View Post
http://www.ft86club.com/forums/showthread.php?t=26044


So....in other words. ...what this ^^^ guy did is totally pointless, and the fact thst both perrin and whiteline created these are also pointless. ..?
He effectively removed any play in the transmission mount. Now you've got a solid transmission mount, a soft diff mount, and soft motor mounts. I'm all about stiffening the power train but I wouldn't stiffen just one section of it.
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Old 01-31-2013, 11:27 AM   #41
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I'd tend to agree with the above post.
Hence why I went with the CUSCO/Perrin hybrid myself. Slightly MORE noise, but LESS vibration(more 'give' in that cradle brace assembly) - which I think is a good thing.
Driving it with the WL KDT926(alone by itself) for me just didn't feel right... or maybe I'm just getting too old and don't like the shakes.
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Old 01-31-2013, 11:49 AM   #42
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Originally Posted by ProjectD View Post
Correct. @F1point4 did clarify that the two pieces were incompatible "at this time" but he also stated that you can grind/ shave off the inside diameter of the whiteline bushing to allow the Perrin piece to fit. Also why I wanted to keep tabs on this thread to see if he found a solution.

Still waiting. ...
Post_break was right, I decided not to use both pieces together. I gave the part to my colleague to use in his BRZ.


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He effectively removed any play in the transmission mount. Now you've got a solid transmission mount, a soft diff mount, and soft motor mounts. I'm all about stiffening the power train but I wouldn't stiffen just one section of it.
I agree with this statement.

Boring out the whiteline part to make the perrin piece fit is the solution to making these work until one vendor decides to change their piece. Personally I wasn't comfortable modifying a part where much effort was spent doing R&D; felt like I was undoing all of that.

Putting them together does remove all the play in the gearbox mount IMO. To truly do it right you would want to stiffen up the engine mount and diff mounts as well.



More NVH is expected as the the gearbox is so close to you and there isn't much sound insulation in the gearbox tunnel.
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