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Boomba RMM Review ...after 50k

TyphoonFiST

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Rich-fizzield
#1
Well I have had my Boomba RMM in now for 50k+ miles and have been very satisfied with it. No squeaks...No rattles or anything out of it! Been rolling a Gen2 GTX2860 on it as of the last 5k. Almost 300whp + or - some HP depending on the day and road surface, Its a great piece from Boomba! There are a lot of choices out there now all which seem to be good quality poopa for your FiST. If you don't have a RMM ...I suggest buying one...totally worth it ...i was my First mod! Glad I did it! Thanks Boomba!

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MRX330

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Minnesota
#2
Well I have had my Boomba RMM in now for 50k+ miles and have been very satisfied with it. No squeaks...No rattles or anything out of it! Been rolling a Gen2 GTX2860 on it as of the last 5k. Almost 300whp + or - some HP depending on the day and road surface, Its a great piece from Boomba! There are a lot of choices out there now all which seem to be good quality poopa for your FiST. If you don't have a RMM ...I suggest buying one...totally worth it ...i was my First mod! Glad I did it! Thanks Boomba!

View attachment 20419
I had it for about 85k miles. AC vibes nothing too bad. Now onto the CPE rmm. One of my first mods too! [drinking]
 
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156
Location
San Juan
#3
I had that thing for less then a week and traded it back for a Mountune RMM. Hated every second I had it on the car. Did make it feel awesome when doing runs though.

PS, TQ Solutions RMM takes a shit if you have too much power
 
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Location
San Jose
#4
Mountune rmm just started creaking again... thinking the bolts are coming loose, again. As much as I love it when it’s quiet, really considering either boomba or Cobb if I have to pick the car up every 2 months to tighten this thing.


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MRX330

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#5
I had that thing for less then a week and traded it back for a Mountune RMM. Hated every second I had it on the car. Did make it feel awesome when doing runs though.

PS, TQ Solutions RMM takes a shit if you have too much power
I am curious to see how all the Powerflex stuff feels in conjunction with the CPE. All I really want is no engine movement [raceflag]
 
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Location
San Juan
#7
Mountune rmm just started creaking again... thinking the bolts are coming loose, again. As much as I love it when it’s quiet, really considering either boomba or Cobb if I have to pick the car up every 2 months to tighten this thing.
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if you grease it up it doesn't make any noise, I gave mine to a buddy and lubed it all and hasn't made another noise.
 
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San Jose
#10
if you grease it up it doesn't make any noise, I gave mine to a buddy and lubed it all and hasn't made another noise.
I had used a general multipurpose grease the last time, slathered all of the contact point on it. Lifted the car to check torque values and both the bolts are at around 60 ft/lbs (I say around because I use an autozone torque wrench). Next week I’ll see if I can actually further disassemble the motor mount itself and see if I can grease whatever I can take apart.


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RubenZZZ

Senior Member
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El Monte
#11
I got a Boomba RMM on mine.

At first, it vibrated pretty noticeably at idle.... Basically all the time. Once it broke in, its actually not bad at all. I only get a vibration at idle with the AC on. Not an issue for me though. It made shifting and driving so much more enjoyable.

Solid 9.5/10

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Krug

Active member
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MI
#12
For everyone in this thread that is curious about the Whoosh RMM, I have the "Race" version and can share my observations and experience with it. Hopefully this does not come off as thread-jacking. ;)

The Whoosh RMM is essentially identical to the Torque Solution RMM in design, but has different durometer ratings. The Whoosh "Race" RMM has 87a durometer small and large bushings ("Street" spec uses 80a small & 72a large) whereas the Torque Solution mount has 75a small and large bushings.

Another thing to note is that the Whoosh RMM is very easy to fully disassemble. I did so, and applied 3M silicone paste to every contact surface of the bushings, and applied paste to the mating surfaces during installation. There is absolutely no noise coming from the RMM itself.

Prior to the Whoosh Race RMM, I was using the AWR 88a RMM, so I will compare it to that. The Whoosh Race RMM performs near-identically to the AWR 88a RMM. It might be slightly softer (mostly due to the larger bushing design) but I cannot tell. Any differences in performance are negligible, which is to say that it performs fantastically. The large bushing design allows it to dampen more vibrations, however. Compared to the AWR 88a RMM, the vibrations are a bit more subdued. At idle there is some very minor vibration in the steering wheel, and with the A/C on it increases a bit. At 1000-1200rpm there is slightly more NVH but not at all what I would call severe. Above 1200rpm it's all buttery smooth.

As a disclaimer, I would not consider my Whoosh mount "broken in" yet as it only has about 200 miles on it. Even if it never breaks in more than this, I wouldn't be the slightest bit upset. It's great!
 
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Location
Pleasant Hill, CA
#13
I had used a general multipurpose grease the last time, slathered all of the contact point on it. Lifted the car to check torque values and both the bolts are at around 60 ft/lbs (I say around because I use an autozone torque wrench). Next week I’ll see if I can actually further disassemble the motor mount itself and see if I can grease whatever I can take apart.
I highly recommend Mobil 1 grease. You can get it in a 1 pound can (as well as a tube), and it works great. I got frustrated with having to constantly re-grease the sway bar bushings on a previous car -- I switched to Mobil 1 grease and never had another issue. I have used it on the FiST from day 1 (as well as a bunch of other projects) and I haven't had to re-grease anything yet. Good stuff.
 
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255
Location
Crossville, AL, USA
#14
I just hit 1000 miles on my FiST with the Boomba RMM and I have to say the shifting is way more solid and as RubenZZZ said idle with the A/C on there's vibration but not hardly noticeable at all for me ..
Definitely something that Ford should do in the production line . [wrenchin] [driving]
 
Messages
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Location
San Juan
#15
Thoughts on the race RMM from whoosh? Strongly considering purchasing one.

It's actually great, first startup there was some vibration I've used it a couple of days and those vibrations are practically gone. I also have the Race upper Trans mount and the Street Engine Mount inserts. Car feels real solid and a lot better then it did with the Torque Solutions or the Mountune I used to have. Also no were near as harsh as the Boomba RMM
 
Messages
366
Likes
156
Location
San Juan
#16
I had used a general multipurpose grease the last time, slathered all of the contact point on it. Lifted the car to check torque values and both the bolts are at around 60 ft/lbs (I say around because I use an autozone torque wrench). Next week I’ll see if I can actually further disassemble the motor mount itself and see if I can grease whatever I can take apart.


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my friend greased it inside where the bushing sits
 

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