RCZ's 370Z Journal.

m4a1mustang · 03-08-2010, 09:13 AM

Good point.

Z1Performance · 03-08-2010, 09:20 AM

The factory motor mounts are MUCH stiffer than the factory transmission mount. By increasing the durometer on the transmission we're actually better balancing things than even Nissan does from the factory. We tested the factory 370Z motor mounts extensively as we had also planned to possibly release a urethane version down the road. We decided for the time being that such a mount would not be beneficial, and if a mount is to be developed, a solid one would be the best solution. That is still in the design phase though, and not something we have any immediate plans for (since there are still so few cars out there). FWIW, this is exactly the same case with the 350Z. The motor mounts were significantly stiffer than the transmission mount.

Urethane settles....that is the nature of a product that has some level of give to it, and particularly one with a 110 lbs transmission bolted to it. The mounts we're using on the 350Z's have been R&D for quite a while before I even tested it on my car own car. I've inspected the mounts personally after months of use, track days, and no wearing is taking place. If any was present, I never would have installed it on my own car, and I'd certainly never sell it. I frankly don't need the money that badly to bother dealing with stuff that's not going to make our customers happy.

We've got a few other ideas on how to even further reduce vibrations and I'll be looking over those in more depth as well

TipsZ · 03-08-2010, 10:26 AM

So RCZ, did you install the Comfort edition, or the Race edition?

m4a1mustang · 03-08-2010, 10:42 AM

Comfort.

370Zsteve · 03-08-2010, 10:53 AM

Quote:

Originally Posted by m4a1mustang

Comfort.

ouch.

Raul, thanks for the GREAT review. And as usual, for being a willing test bed +1 rep

RCZ · 03-08-2010, 12:58 PM

You're all welcome. I will definitely keep this updated throughout the following couple of weeks. Either I'm getting used to it or the vibration is starting to ease a little already.

TipsZ · 03-08-2010, 02:04 PM

Quote:

Originally Posted by RCZ

You're all welcome. I will definitely keep this updated throughout the following couple of weeks. Either I'm getting used to it or the vibration is starting to ease a little already.

That is Great News! Thanks for being the guinea pig RCZ. Ha..

phelan · 03-08-2010, 01:11 PM

^ that's great news for the rest of us Raul, thanks

KillBill · 03-09-2010, 11:13 PM

How are the SPC front and rear camber arms holding up...are you still happy with the performance?

RCZ · 03-09-2010, 11:33 PM

They are fine. They aren't exactly the greatest thing at holding an alignment setup, but they do their job. Plan on getting an alignment a bit more often though because they do have a tendency to get knocked off easily.

KillBill · 03-09-2010, 11:50 PM

Kool, thanks, I have SPL rears right now and I'm getting some annoying noise from the bearings.....so im actually planning on getting the spc's for the rear

RCZ · 03-10-2010, 03:11 PM

I am a man of my word, here's a quick video of the car at idle and revving with the glass of water.

Turn your speakers up, its an iphone video so its not exactly HD, but it gets the point across. That clanking you hear is me putting the clutch in and out in neutral. You can hear the tranny winding up when I let the clutch out. Revving you can hear how much sound is transmitted into the car.

I have to say thought, NVH has decreased a lot since the install. I will take another video for you folks in about a week or so. At this point it's still not daily drivable for me.

semtex · 03-10-2010, 03:45 PM

Thx for the vid. Yes, it does get the point across. lol

LiquidZ · 03-10-2010, 11:20 PM

hahaha jesus

1slow370 · 03-11-2010, 02:44 AM

yeah quite a bit more noise hmm gonna have to think about how to do this some more. tell us if it's gets any even better down the road.

03-08-2010, 09:13 AM	#1 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Good point. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

03-08-2010, 10:26 AM	#3 (permalink)
TipsZ Track Member Join Date: Mar 2009 Location: Lithia, FL Age: 52 Posts: 552 Drives: 09 Nissan 370z CS M6 Rep Power: 187	So RCZ, did you install the Comfort edition, or the Race edition? __________________ Dynojet 285 HP/245 TQ (pre CBE)// Agency Power CBE // GTM Test Pipes // JWT Pop Chargers // B&M Short Shifter // Eibach Springs // Powder-coated Akebono's // Powder-coated Strut Bar // Black Chromed 19" Rays // // Redline Designs Graphics TipsZ journal

03-08-2010, 10:42 AM	#4 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6963	Comfort. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

03-08-2010, 01:11 PM	#8 (permalink)
phelan A True Z Fanatic Join Date: Apr 2009 Location: CA Age: 39 Posts: 9,513 Drives: Scoobaroo Rep Power: 3407	^ that's great news for the rest of us Raul, thanks __________________ 凛 ('Rin') - 2009 Nissan 370Z With silence comes peace. With peace comes freedom. With freedom comes silence.

03-10-2010, 03:45 PM	#13 (permalink)
semtex A True Z Fanatic Join Date: Jan 2009 Location: Behind enemy lines Age: 55 Posts: 5,995 Drives: People to drink Rep Power: 33	Thx for the vid. Yes, it does get the point across. lol __________________ "There are no small accidents on this circuit." -- Ayrton Senna 316.8whp & 248 ft/lbs (Dyno Dynamics) \| 319whp & 256 ft/lbs (DynoJet) (04/23/10) Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.

03-08-2010, 09:20 AM	#2 (permalink)
Z1Performance Base Member Join Date: Aug 2009 Location: St. James, NY Posts: 237 Drives: 350Z Rep Power: 17	The factory motor mounts are MUCH stiffer than the factory transmission mount. By increasing the durometer on the transmission we're actually better balancing things than even Nissan does from the factory. We tested the factory 370Z motor mounts extensively as we had also planned to possibly release a urethane version down the road. We decided for the time being that such a mount would not be beneficial, and if a mount is to be developed, a solid one would be the best solution. That is still in the design phase though, and not something we have any immediate plans for (since there are still so few cars out there). FWIW, this is exactly the same case with the 350Z. The motor mounts were significantly stiffer than the transmission mount. Urethane settles....that is the nature of a product that has some level of give to it, and particularly one with a 110 lbs transmission bolted to it. The mounts we're using on the 350Z's have been R&D for quite a while before I even tested it on my car own car. I've inspected the mounts personally after months of use, track days, and no wearing is taking place. If any was present, I never would have installed it on my own car, and I'd certainly never sell it. I frankly don't need the money that badly to bother dealing with stuff that's not going to make our customers happy. We've got a few other ideas on how to even further reduce vibrations and I'll be looking over those in more depth as well

03-08-2010, 12:58 PM	#6 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	You're all welcome. I will definitely keep this updated throughout the following couple of weeks. Either I'm getting used to it or the vibration is starting to ease a little already.

03-09-2010, 11:13 PM	#9 (permalink)
KillBill Base Member Join Date: Jul 2009 Location: San Bernardino Posts: 86 Drives: 08-G37S Rep Power: 17	How are the SPC front and rear camber arms holding up...are you still happy with the performance?

03-09-2010, 11:33 PM	#10 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	They are fine. They aren't exactly the greatest thing at holding an alignment setup, but they do their job. Plan on getting an alignment a bit more often though because they do have a tendency to get knocked off easily.

03-09-2010, 11:50 PM	#11 (permalink)
KillBill Base Member Join Date: Jul 2009 Location: San Bernardino Posts: 86 Drives: 08-G37S Rep Power: 17	Kool, thanks, I have SPL rears right now and I'm getting some annoying noise from the bearings.....so im actually planning on getting the spc's for the rear

03-10-2010, 03:11 PM	#12 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	I am a man of my word, here's a quick video of the car at idle and revving with the glass of water. Turn your speakers up, its an iphone video so its not exactly HD, but it gets the point across. That clanking you hear is me putting the clutch in and out in neutral. You can hear the tranny winding up when I let the clutch out. Revving you can hear how much sound is transmitted into the car. I have to say thought, NVH has decreased a lot since the install. I will take another video for you folks in about a week or so. At this point it's still not daily drivable for me.

03-10-2010, 11:20 PM	#14 (permalink)
LiquidZ A True Z Fanatic Join Date: Nov 2008 Location: Columbus, OH Posts: 1,940 Drives: Mag. Black 2009 370Z Rep Power: 705	hahaha jesus __________________

03-11-2010, 02:44 AM	#15 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7252	yeah quite a bit more noise hmm gonna have to think about how to do this some more. tell us if it's gets any even better down the road. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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