IRP short shifter rattle fix
 

Very simple fix but may need regular replacement.
1. Remove the shifter trim and boot.
2. Locate this part, which is the “cable stop” for the reverse lock out and apply insulation. I used felt covered vinyl cut to size.
http://i38.photobucket.com/albums/e1...psytzyucgr.jpg

3. Stuff the cavity of the center console. Add up to what you feel is enough and still able to return the shifter trim and boot.

http://i38.photobucket.com/albums/e1...psi3m5gjw1.jpg

My first attempt shifted the rattle to 5k rpm. After adding a little more foam I achieved significant reduction. Very minimal rattle to none at all. I also installed the free anti rattle kit but that alone was of little or no help for me.

Disclaimer: not guaranteeing anything and proceed at your own risk

http://i38.photobucket.com/albums/e1...pswa5kjghv.jpg

IRP RATTLE FIX
 

[ame="http://youtu.be/PSp4URdI7gY"]https://youtu.be/PSp4URdI7gY[/ame]

I don’t have the Individual Racing Parts shifter, but have always been interested in it. The issue with rattling was definitely a negative, so I appreciate your post and video. Overall, what are your thoughts on the product and would you recommend it?

I've had the IPR shifter for almost a year and I don't regret getting it. Design is simple and functional. Build quality is top notch and this is very tangible with ever shift. The shifter lifts the car to another level and I can't imagine going back to the stock shifter for our platform. When it was new, it felt strange using such a tall shifter but it made reaching the shifter easier/faster. Gear engagement, without exaggeration, is bolt action. A friend equated it to a gated shifter.

When it was new the rattle was not an issue. The rattle came out after about 3 months and was present at 3000 to 4000 rpm. NVH definitely increased; road noise, drive shaft and the rattle because installing the IRP required removing all of the insulation of the stock shifter leaving an (almost) open hole in the cabin.

From stand still, 1st and 2nd gear can be difficult to engage but I think it will be solved after some adjustment (pic: part marked red).

http://i38.photobucket.com/albums/e1...psb4ggvmyc.jpg

The shifter can get warm with regular driving and more so when car is parked under the sun. It does cool down quickly and has never been too hot to use.

Will I recommend it ? Definitely

The only thing I regret is getting it right away because the newer one with the reverse lock out button would probably match my current interior better. As is, I'm still very happy.

How hot does it get where you live? Here it commonly goes above 100F in the summer, and our summers are long

It's almost perpetual summer here and 90-100F is the afternoon temp range. We can hit around 104 but not often.

good to know

If i had this shifter, and the rattle was coming from shaking of the entire assembly then I would probably drill some holes and add some lateral springs.

Yes that might help but I have observed that these 3 parts are the ones causing the rattle. Adding sound insulation around these seem to be the solution.

http://i38.photobucket.com/albums/e1...psuiulqjsu.jpg

That makes sense.

I've had this shifter for about 4 months. I've got the same buzzing sound also. Today I took it apart after I saw this and found that the 4 allen screws that hold the base to the shifter had come loose. I put some lock tight on them. It seemed to make it quiet it down a bit. But I drove it without the center console in and held onto things as it was making the sound and mine is definitely coming from the button. But even holding the button does not make it go away.

Try to add insulation, like what I have

Any update on this topic everyone? I love my shifter and I can never go back but this rattling issue, after doing everything that everyone suggested including insulation, still there above 4k rpm, at least 30% of it...

I’m very interested in one also, but not if it rattles.

Mine does not rattle, V3. I got mine used and it came with an extra rubber gasket, not sure if that helps at all but from bottom to top my assembly goes: Chassis (car), rubber gasket, flat plate, rubber gasket, shifter plate, shifter handle.

The shifter was bolted to the chassis using nylon washers, also used lock washers bolting the handle to plate.

That’s good to hear, I think I will take a chance in ordering.

If you’re using differential, or trans mission inserts it’ll rattle. As soon as you have bolts connecting a steal shifter plate to the floor of the car you have a vibration point. I have the V3 and I have stiffer trans, diff, and sub frame inserts and the IRP rattles at 3k rpm. I have fixed it with a simple match head sized piece of blu tac placed on the silver cable stop that moves up and down when the reverse button is pushed down. Basically it stops two metal pieces rubbing against each other and stops the rattle.

It’s the only thing wrong with the IRP and despite the rattle it’s by far the best aftermarket shifter on the market..

Keep in mind it is designed for track use where a rattle is acceptable.

for those the purchased the original IRP, do they offer any sort of warranty style upgrade to eliminate/reduce rattle -- or is only remedy a DIY fix?

They offer an anti rattle kit but it does very little.. The quality of the gearbox and design of linkage setup apparently has a lot to do with the issue. Apparently out of all the different versions of the shifter IRP make the 86/BRZ is the only one that rattles and that they cannot eliminate.

Still a great decision to have one though. Just depends on whether your OCD about noise in your car or you’re about functionality!

This thread is fake news. I tried everything to stop the rattle on a V3 to no avail. Unless you have a totally obnoxious exhaust you'll hear the rattle above 4K rpm which will get worse till redline.

I have tried several things like the foam wich does reduce outside noise quite a bit but i cannot find a way to reduce or eliminate the rattling. Granted i have a transmission insert which doesn't help things.
Has anyone here been able to remove the button to insert some insulation? I believe most of the noise comes from the shaft under the button but i cannot find a way to remove it.

Is it possible that the exhaust being hard mounted direct to the transmission case might cause some sort of resonance transfer?

im sure it is part of the issue but it just seems simpler to find a way to mitigate the noise from the shifter than relocate the exhaust mounting point. which is why i am searching for anyone who was able to remove the button.

I think some of the noise comes from the bushing, it is metal on the IRP. It is plastic on other shifters.

Checkout the following thread: https://www.ft86club.com/forums/showthread.php?t=121063