Pfadt C6 motor mount install
Thread Starter
Burning Brakes
Joined: Jul 2006
Posts: 824
Likes: 3
From: Houston, Tx.....'05 Corvette M6 LS3 Magnuson Heartbeat
Pfadt C6 motor mount install
Question.....
The installation instructions estimate ~5-6 hours for install with proper tools & lift. Exhaust disassembly (stock manifolds or headers) required from motor. Asking for input from those who have installed these bad boys. Obviously it would be best to install when having the motor pulled, but is it worth making the attempt and install in my garage or leave it to the pro's and take it to a performance shop? Looks difficult with no lift.
I heard unlike the Pfadt transmission mounts, the motor mounts don't transfer much chase drivetrain noise, very minor. But the installation instructions clearly state, "This kit will transfer more vibration than stock at low RPM's". True? (for street or DD use).
Pfadt C6 motor mount installation link :
http://www.pfadtracing.com/blog/wp-c...-mount-kit.pdf
The "before & after" video is impressive.....
http://www.pfadtracing.com/catalog/p...products_id/53
The installation instructions estimate ~5-6 hours for install with proper tools & lift. Exhaust disassembly (stock manifolds or headers) required from motor. Asking for input from those who have installed these bad boys. Obviously it would be best to install when having the motor pulled, but is it worth making the attempt and install in my garage or leave it to the pro's and take it to a performance shop? Looks difficult with no lift.
I heard unlike the Pfadt transmission mounts, the motor mounts don't transfer much chase drivetrain noise, very minor. But the installation instructions clearly state, "This kit will transfer more vibration than stock at low RPM's". True? (for street or DD use).
Pfadt C6 motor mount installation link :
http://www.pfadtracing.com/blog/wp-c...-mount-kit.pdf
The "before & after" video is impressive.....
http://www.pfadtracing.com/catalog/p...products_id/53
Drifting
Joined: Oct 2006
Posts: 1,569
Likes: 4
From: Phoenix AZ
St. Jude Donor '09-'10-'11
Pfadt Motor Mount install
I've installed the Pfadt motor mounts and tranny mounts. I DOES require a lift to do it properly. The headers DO NOT NEED to be removed, but there is not much room to work in there, and the motor needs to allow to cool before attempting this unless you want to fry your hands. About two weeks ago, I posted a thread on this Tech Forum entitled "Feedback on Pfadt Motor/Transmission mount install". It covers this process entirely. Check it out. 
Ray
Ray
Thread Starter
Burning Brakes
Joined: Jul 2006
Posts: 824
Likes: 3
From: Houston, Tx.....'05 Corvette M6 LS3 Magnuson Heartbeat
I'm trying to get direct "real world" customer feedback, like Ray's helpful response (Thanks Ray! ). I know it's not an easy job, but I'm more concerned about the possible vibration issues at low RPM's.
.......and it's "PFADT", not PHADT, but I can't even pronounce it.
). I know it's not an easy job, but I'm more concerned about the possible vibration issues at low RPM's. .......and it's "PFADT", not PHADT, but I can't even pronounce it.
Advanced
Joined: Nov 2007
Posts: 51
Likes: 0
Pfadt mounts
The reason I installed the mounts, (engine, transmission and differential) was to keep the drive train from flexing during hard acceleration. It defiantly keeps thing from moving around but the vibration is a little harsh at idle and a few other places in the RPM range. And the diff mounts transmit a whining noise that you can hear in the car. This may or may not be of concern for you but it takes a good riding car and makes it a little rough. I am getting use to the harshness but will probably put it back to stock this Winter.
Le Mans Master
Joined: Mar 2006
Posts: 7,838
Likes: 1
From: Valencia '32 Ford 3 window with 615 HP!!!!
St. Jude Donor '06-'09
Mike,,,are You right on My heels with these same mods??
I will have mine installed in a week or so!
Vibration,,,,,,,We don't care about stinking vibration!!
I will have mine installed in a week or so!
Vibration,,,,,,,We don't care about stinking vibration!!
Drifting
Joined: Sep 2007
Posts: 1,283
Likes: 7
From: Hurst (Fort Worth area) Texas
St. Jude Donor '09
Greg...
Check out my post again... my not-so-subtle sarcastic comment was not directed at your post.
Still friends?
R
b
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Burning Brakes
Joined: May 2006
Posts: 1,110
Likes: 16
From: stuart fl
thanks
dicky
Le Mans Master
Joined: Mar 2006
Posts: 7,838
Likes: 1
From: Valencia '32 Ford 3 window with 615 HP!!!!
St. Jude Donor '06-'09
The motor mounts help to keep the "twist" of the engine to a minimum,which occurs at stomp down throttle time!
I'll put more RWHP down to the ground!
I'm doing it to Mine!!
I'll put more RWHP down to the ground!
I'm doing it to Mine!!
Burning Brakes
Joined: May 2006
Posts: 1,110
Likes: 16
From: stuart fl
dicky
Racer
Joined: Nov 2008
Posts: 335
Likes: 0
From: southern Ct
Le Mans Master
Joined: Mar 2006
Posts: 7,838
Likes: 1
From: Valencia '32 Ford 3 window with 615 HP!!!!
St. Jude Donor '06-'09
Drifting
Joined: Oct 2006
Posts: 1,569
Likes: 4
From: Phoenix AZ
St. Jude Donor '09-'10-'11
Pfadt Motor/Tranny Mount install
I haven't put my car through any heavy launches since installation of them, but drivetrain shake is all but eliminated. As far as dyno differences, there probably won't be any difference. You're not adding horsepower or torque, but you are focusing the power in a way that prevents hesitation in throttle response/shifting because of torque movement throughout the drivetrain. As far as wheel hop is concerned, remember that that phenomenon is also a function of shocks, tires, etc. so in order to rid your ride of bouncy wheels on launch, those other factors need to be addressed also.
Le Mans Master
Joined: Mar 2006
Posts: 7,838
Likes: 1
From: Valencia '32 Ford 3 window with 615 HP!!!!
St. Jude Donor '06-'09
I haven't put my car through any heavy launches since installation of them, but drivetrain shake is all but eliminated. As far as dyno differences, there probably won't be any difference. You're not adding horsepower or torque, but you are focusing the power in a way that prevents hesitation in throttle response/shifting because of torque movement throughout the drivetrain. As far as wheel hop is concerned, remember that that phenomenon is also a function of shocks, tires, etc. so in order to rid your ride of bouncy wheels on launch, those other factors need to be addressed also.
,,very nice!!
2006, c5, c6, corvette, engine, feedback, forum, install, installation, installing, ls2, motor, motortransmission, mount, mounts, pfadt, transmission
