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034Motorsport Billet Aluminium Mounts + HPA Motorsports Core Interlock 90A Review

SKorea808

Ready to race!
Disclaimer: I am only providing feedback to help the above average enthusiast who has a complete disregard for NVH and is willing to sacrifice everything to get traction & engagement similar to what I have achieved (this mount combination is a supplement to all my other existing modifications that aide in my traction, these alone will not get you to where I am at). Hopefully some of you will benefit from this information. I am in no way affiliated with 034Motorsport and HPA Motorsports.

Items Under Review:

● 034Motorsport Billet Aluminium Engine Mount (65A)
● 034Motorsport Billet Aluminium Transmission Mount (65A)
● 034Motorsport Billet Aluminium Dogbone Mount (Aurora Spherical Bearing)
● HPA Motorsports Core Interlock Lower Subframe Mount (90A)


Previous Mount Setups:

First:
● VF Engineering Engine Mount (75A)
● VF Engineering Transmission Mount (75A)
● VF Engineering Dogbone Mount (75A)
● ECS Tuning Insert (88A)

Second:
● SPM Engine Mount (75A)
● SPM Transmission Mount (75A)
● SPM Dogbone Mount (75A)
● HPA Motorsports Core Interlock Lower Subframe Mount (90A)

Current:
● 034Motorsport Billet Aluminium Engine Mount (65A)
● 034Motorsport Billet Aluminium Transmission Mount (65A)
● 034Motorsport Billet Aluminium Dogbone Mount (Aurora Spherical Bearing)
● HPA Motorsports Core Interlock Lower Subframe Mount (90A)


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Prior to adding the 034 Billet Aluminum Mounts, I had full SPM Engine/Transmission/Dogbone Mounts (75A) with my HPA Motorsports Core Interlock Lower Subframe Mount (90A) which proved to be a significant improvement over OEM and other options/combinations (i.e. cheap inserts some of you buy because #cheap #nvhwuss). On my old setup I have ran about 4k miles on them, to include track time on the Nürburgring, numerous autobahn runs (up to 170mph), back to back launch control runs, daily driving, etc. and they have held up very well to my expectations but I STILL wanted more. 034Motorsport more than likely heard my wish and decided to troll me IRL for their personal satisfaction knowing I wanted their new billet aluminum mounts. Kidding.

Anyway... So I purchased the new 034 Billet Aluminum Mounts along with new OEM bolts (from local VW dealer but 034Motorsport can provide these upon request, which you NEED) as a package within the 1st week they were out (or maybe the 2nd week, doesn't matter) and got them installed and results...

Receiving and unboxing!

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Removed from wrappers and took some pictures because they so pretty.​

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Installation Notes:
These mounts were designed to be used with new OEM bolts, DO NOT reuse your OEM bolts or bolts from other aftermarket mounts. I say this because the 034Motorsport Billet Aluminum Mounts retain the OEM height profile (if you don't know what I'm talking about, I'm talking about the base of the mounts that's in contact with the chassis and the engine/transmission connecting points) and aftermarket mounts (in most cases) are made much thinner, therefore the supplied bolts in those kits are much shorter and will not thread all the way into the chassis and engine/transmission connecting points which = bolts will snap and then you #rage and post on forums why you #loldumb. You've been warned.

Installation instructions can be found on both manufacturer's websites and should be adhered to for oblivious safety reasons and so your mounts work as "intended".

More pictures!

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Personal Feedback:
These mounts are probably one of the stiffest mounts on the market, if they aren't, only other competitor I can think that's close and/or more stiffer is the new revision of the VWR/RacingLine Mounts (not really new, just no one has really reviewed them and/or purchased them).

During the install, my mechanic ran into an issue, an issue we didn't foresee (I don't think anyone would expect you to go from aftermarket mounts to aftermarket mounts) and when we ran into it, it caused problems. Having already aftermarket mounts, it made installing the new 034Motorsport Billet Aluminium Dogbone Mount (Aurora Spherical Bearing) difficult to install due to the holes not lining up. The SPM Mounts did not allow the engine to move, we even tried using a pry bar (as most installs require but not all) to line up the holes on the transmission/engine side to the dogbone mount and it barely moved and still wasn't enough to line them up. Next step in the process was to fully unbolt the mounts from the chassis but keep the engine/transmission side bolted so the engine would still rest on the mounting bolts without any danger of falling down. This barely helped but it was just enough to move it to get the holes lined up, then we got the dogbone finally in. This install was more than likely intended to come from OEM mounts which allow alot of movement, making it easier to install. Glad we did the 034Motorsport Billet Aluminium Dogbone Mount (Aurora Spherical Bearing) first and not the 034Motorsport Billet Aluminium Engine Mount (65A) and 034Motorsport Billet Aluminium Transmission Mount (65A) or we would have never got those holes lined up and end up wasting more time. Installing the engine and transmission mount was as easy as installing any other mounts after getting the dogbone mount in. After complete installation and putting everything back to together, my mechanic took my car for a test drive to ensure everything was good to go. When my mechanic returned and got out of my car, I asked him "hows the vibrations?" and he chuckled and responded with "you'll see". When he said that I literally said "lolwut?" IRL.. not really but I knew what he mean't.

After paying for the install, I finally got in and turned her on. Wow. Much vibration. Expected of course and I don't care but the drive to follow REALLY made things interesting, lol.

NOTE: DSG Transmission, not Manual.

My Personal Testing:
Idling: Noticeable increase in NVH
Idling with A/C on: Noticeable increase in NVH
Launch Control Activated 3200RPM: Noticeable increase in NVH from 750RPM up to 3200RPM and constant afterwards.
Revving up to 6000RPM while in park: Significant increase in NVH all the way from 750RPM to 6000RPM (this really surprised me!).
Reverse (in motion and not in motion): Noticeable increase in NVH.
Driving in D-Mode (civil driving, shifts occurred above 1400RPM and not more than 2700RPM while on light throttle): Major increase in NVH.
Driving in M-Mode & S-Mode (WOT 1st gear 15mph-120mph, no traction loss): Significant increase in NVH all the way from start up to 7200RPM (still very surprised as all other mounts vibrations go away as speed/RPM increase).
Deceleration (from 6500RPM down to 1200~RPM in gears 1, 2, &3 all produced same NVH): Extreme increase in NVH. I literally thought something broke on my car but I tried again and again and it still happened. Everything is intact.
More WOT Driving 01 (WOT from 1st 10mph, traction control on): Traction Control intervened for literally a split second, then I continued on with full traction up the entire rev band of 1st, 2nd, and 3rd. #gottraction?
More WOT Driving 02 (WOT from 1st 15mph, traction control on): Full traction, no intervention from Traction Control. Hope nothing breaks from this type of grip/strain on parts.
Wheel Hop: Doesn't exist and trust me, I purposely tried to get wheel hop but it just doesn't happen.

Over 202miles have been put on these mounts, NVH went down very minimally that you wouldn't noticed unless you literally focused on it for awhile.

Summary:

I got these mounts because someone told me I was a lil' bitch so these brought the "man" back into me.. Kidding. I highly recommend these to enthusiast who want the best and is willing to gain performance at the cost of significant comfort (literally, comfort is no longer an option, no turning back). I thoroughly enjoy having traction in almost all of 1st, complete traction in 2nd & 3rd in normal, dry conditions. NO LSD. How many of you can honestly say you have this type of traction with K04/K04 Hybrid Variants? Almost none of you. Lets race from 10mph ;)

Sarcasm aside, any questions, let me know!


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Injen1us

Drag Race Newbie
Love the write up.

Id be interested to see how many people pick these up seeing that they are legit racekar mounts. The fact that you daily drive this thing man... id have to pop in earpro just to pass a physical. lol.
 

SKorea808

Ready to race!
Good feedback. Thanks for the writeup

No problem :thumbsup:

Love the write up.

Id be interested to see how many people pick these up seeing that they are legit racekar mounts. The fact that you daily drive this thing man... id have to pop in earpro just to pass a physical. lol.


Yeah this car is officially a 100% track car with all track grade/autocross (as you already know) stuff on while still being my daily commuter, most wouldn't dare go that far but its all a compromise in the end; I gave up comfort.
 

HYDE161

Go Kart Champion
Nice review and thank you for giving me the feedback on these mounts the minute you left the shop. You may save me from a HYDE16 review. You got balls to keep these on I'll give you that, for me as a daily driver with kids, I may have to pass on them (or a review). I just received the engine and trans mount (not dogbone) from 034 and it breaks my heart to think about returning them.
 

SKorea808

Ready to race!
Nice review and thank you for giving me the feedback on these mounts the minute you left the shop. You may save me from a HYDE16 review. You got balls to keep these on I'll give you that, for me as a daily driver with kids, I may have to pass on them (or a review). I just received the engine and trans mount (not dogbone) from 034 and it breaks my heart to think about returning them.

I think with the differences in transmission (DSG/Manual), dogbone mount (034/OEM), subframe mount (HPA 90A/VWR), you should in theory get less NVH.

DSG/Manual
DSG's are known to produce more NVH than manuals, why exactly I'm not sure but we all know this, especially when stock mounts are replaced with harder durometer mounts (rubber or polyurethane).

Dogbone Mount
Due to your dogbone mount having a rubber bushing it will allow less NVH to transfer into the chassis unlike the Aurora Spherical Bearing which in my opinion (and by design) allows a lot more, if not all NVH to be transferred into the chassis (especially the bottom portion as I am noticing).

Subframe Mounts
While I can't comment on the VWR Subframe Mount (never seen it physically nor driven a car with it), the HPA Motorsports Core Interlock Lower Subframe Mount (90A) is rock hard compared to its 75A variant (which most people get when buying this particular mount) which is much softer. According to HPA the 90A is designed and intended to be used on the MK5 R32, Audi TT (TTS/TT-RS) and Audi A3 (S3/RS3) etc so you know right away that the 90A is too much for a MK6 GTI in most cases. From what I know just from reading random reviews and specifications on the VWR Subframe Mount, the bushing within the mount is softer than the HPA's 90A, which should dampen more NVH whereas the HPA 90A allows more NVH to be transferred to the chassis.

Give it a shot! :thumbsup:
 

xHeartcoreboyx

IceCream GTI
I got the DD friendly street density mounts and the 034 dog bone with the 034 sub frame insert (not full replacement). The whole subframe definitely vibrates on idle.

It doesn't bother me anymore and the quality of the part is insanely nice so it's staying lol
 

Blaznjoe

Drag Race Newbie
I think with the differences in transmission (DSG/Manual), dogbone mount (034/OEM), subframe mount (HPA 90A/VWR), you should in theory get less NVH.


Subframe Mounts
While I can't comment on the VWR Subframe Mount (never seen it physically nor driven a car with it), the HPA Motorsports Core Interlock Lower Subframe Mount (90A) is rock hard compared to its 75A variant (which most people get when buying this particular mount) which is much softer. According to HPA the 90A is designed and intended to be used on the MK5 R32, Audi TT (TTS/TT-RS) and Audi A3 (S3/RS3) etc so you know right away that the 90A is too much for a MK6 GTI in most cases. From what I know just from reading random reviews and specifications on the VWR Subframe Mount, the bushing within the mount is softer than the HPA's 90A, which should dampen more NVH whereas the HPA 90A allows more NVH to be transferred to the chassis.

Give it a shot! :thumbsup:

Excellent review and feedback. :w00t: As you sorta mentioned above, I think your 90a puck is causing more than average NVH. I'm still looking forward to installing mine and I'm not upgrading the dogbone nor do I have any puck. I just have a "cut" 65a Neuspeed insert which has been in the car for two years now.
 

tsmack

Ready to race!
Excellent review and feedback. :w00t: As you sorta mentioned above, I think your 90a puck is causing more than average NVH. I'm still looking forward to installing mine and I'm not upgrading the dogbone nor do I have any puck. I just have a "cut" 65a Neuspeed insert which has been in the car for two years now.

I installed the 034 billet engine and Trans mounts this weekend. Just adding the engine mount wasn't too bad as far as NVH, but adding the Trans mount together with the engine mount created major increases in NVH. The only other thing I had installed is the Neuspeed 65A dogbone insert. I will not be adding a pendulum mount!! Engine noise in the cabin now sounds visceral, the car feels planted, no wheel hop, and DSG shifts have tightened up. Vibration however at idle, in reverse and at low rpms in most gears if not all are very real. Get to 2,000 or more rpms and the vibrations diminish.
 
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Blaznjoe

Drag Race Newbie
I installed the 034 billet engine and Trans mounts this weekend. Just adding the engine mount wasn't too bad as far as NVH, but adding the Trans mount together with the engine mount created major increases in NVH. The only other thing I had installed is the Neuspeed 65A dogbone insert. I will not be adding a pendulum mount!! Engine noise in the cabin now sounds visceral, the car feels planted, no wheel hop, and DSG shifts have tightened up. Vibration however at idle, in reverse and at low rpms in most gears if not all are very real. Get to 2,000 or more Rome and the vibrations diminish.

Great to know, thanks! When I installed brand new 034 "street" mounts they had a lot of NVH for about 500 miles. Once they broke-in its almost completely gone. I'm gambling that these new 034 "billet" mounts will need a break-in period as well and I think the NVH will be more than the "street" mounts but less than the urethane mounts (e.g. BSH, VF, SPM, etc) :)
 

HYDE161

Go Kart Champion
Great to know, thanks! When I installed brand new 034 "street" mounts they had a lot of NVH for about 500 miles. Once they broke-in its almost completely gone. I'm gambling that these new 034 "billet" mounts will need a break-in period as well and I think the NVH will be more than the "street" mounts but less than the urethane mounts (e.g. BSH, VF, SPM, etc) :)

034 said 400 miles. I'm holding mine until the OP gets to 400-500.
 

Blaznjoe

Drag Race Newbie
034 said 400 miles. I'm holding mine until the OP gets to 400-500.

OP has the HPA 90 puck which a big differentiator from what I will be running. His review is great but we have to take this into consideration :)
 

timneedscoffee10

Go Kart Champion
OP has the HPA 90 puck which a big differentiator from what I will be running. His review is great but we have to take this into consideration :)


This.

I just installed BFI Stage 1 (70a) engine and transmission mounts, with the HPA 75a puck, and it's smooth as butter - coming from a full SPM setup which was harsh as all getup :).

The 90a puck likely contributes most of the NVH OP is reporting! I would expect the 034 mounts with a 75a puck to be very similar to what I'm running, which is completely comfortable


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