Notices
RX-8 Racing Want to discuss autocrossing, road-racing and drag racing the RX-8? Bring it here. This is NOT a kills/street racing forum.

anyone using an engine torque damper?

Thread Tools
 
Rate Thread
 
Old Jul 5, 2009 | 09:37 AM
  #1  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
anyone using an engine torque damper?

anyone using this--like the Ingalls stiffy?
Or anyone know where nylon motor mounts can be found?
I dont want solid ones.
olddragger
Reply
Old Jul 5, 2009 | 07:12 PM
  #2  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
ok maybe not--but look at track vids and watch how much the gearshift is moving--dont know if a stiffy would help with that or not--but sense we dont have better motor mounts.....
olddragger
Reply
Old Jul 5, 2009 | 07:30 PM
  #3  
I8U's Avatar
I8U
Registered
iTrader: (1)
 
Joined: May 2006
Posts: 1,934
Likes: 0
From: Carolina Beach, NC
Not sure Denny, I know I've seen a few engine dampers out there, just can't remember where. Solid mounts are nice but aren't too fun for the street.
Reply
Old Jul 5, 2009 | 07:44 PM
  #4  
sebarx8's Avatar
seebass
iTrader: (4)
 
Joined: Jan 2008
Posts: 1,004
Likes: 0
From: bloomfield nj now in miami ahhhh back in jersey now jajajjaja
we don't have any torque
Reply
Old Jul 5, 2009 | 08:02 PM
  #5  
SiLVeRE8's Avatar
a.k.a. WhITeRE8
iTrader: (8)
 
Joined: Apr 2005
Posts: 2,231
Likes: 0
From: Nor Cal *
^ FI does, but not NA
Reply
Old Jul 5, 2009 | 09:32 PM
  #6  
Symbioticgenius's Avatar
You Dumbass!!!
 
Joined: Feb 2008
Posts: 719
Likes: 0
From: New York
(without reading thread) Wouldn't that require Engine Torque

(Carry On)
Reply
Old Jul 5, 2009 | 09:35 PM
  #7  
Spinning Sushi's Avatar
I <3 Sushi
iTrader: (21)
 
Joined: Aug 2006
Posts: 3,967
Likes: 4
From: SoCal
If I had one lying around, I would put it in my car just for the hell of it.
Reply
Old Jul 6, 2009 | 12:26 AM
  #8  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,137
it's just dead weight
Reply
Old Jul 6, 2009 | 05:30 PM
  #9  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
ok --i get the vibe--what does anyone suggest for a street driven car that tracks and would like to reduce the drivetrain(including engine) movement?
Nylon mounts would be nice but so far they would have to be custom made,
trans/diff brace make a bunch of noise during street driving?
You can make a take off torque arm--but i really dont want to do that.
i will try to post a vid showing the gearstick movement --its probably an inch or so of movement.
Any suggestions?
I8U yall were running solid mounts?
Reply
Old Jul 6, 2009 | 05:36 PM
  #10  
Rotr8's Avatar
whines all the way home
iTrader: (2)
 
Joined: Oct 2004
Posts: 7,402
Likes: 2
From: Towson/Baltimore, MD
Denny you know Juan has one on his, he put it on when he went to the bigger pulley...
Reply
Old Jul 6, 2009 | 05:46 PM
  #11  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
yep but havent heard from him lately--must be a lot of bombs out there!!

here is a vid link showing the movement watch the gearshift at the lower part of the screen--you may be surprised.
http://garx8club.com/v3/viewtopic.ph...tart=30#p56236
OD
Reply
Old Jul 7, 2009 | 07:23 AM
  #12  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
try again--better link
http://vimeo.com/5218353
OD
Reply
Old Jul 7, 2009 | 08:52 AM
  #13  
wankelbolt's Avatar
1% evil, 99% hot gas.
iTrader: (21)
 
Joined: Nov 2007
Posts: 1,110
Likes: 143
From: Forest Hill, MD
I'm in the same position, olddragger. I'm not boosted, but the "rebound" -- for lack of a better word -- coming on and off the throttle is annoying. It behaves like the TSB for the engine mounts, but the mounts otherwise check OK (and have been replaced). I don't give a crap about NVH, as a result CD players in my cars are useless and friends don't like riding in my cars. BHR/CRH has mentioned that he has solid engine mounts, but I've never seen any advertised.

You can see my shifter bobbing around in this vid: http://www.youtube.com/watch?v=23T46u4pMxw
Reply
Old Jul 7, 2009 | 10:14 AM
  #14  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
enjoyed the vid---and i see yours doing the same thing.
Solid mounts do cause a good bit of noise/vibration from what I understand from others. Also if i am not mistaken some of the racing teams started cracking other components with solid mounts.
Need better mounts or bandaid it with a stiffy?
OD
Reply
Old Jul 7, 2009 | 10:17 AM
  #15  
angeljoelv's Avatar
angeljoelv
 
Joined: Apr 2007
Posts: 1,635
Likes: 1
From: Florida
I used to have a damper, but all it did was pass vibration to the chassis. Which I assume its ok on a racecar but not in your daily driver.. SUCKS, threw mine out the window.


Last edited by angeljoelv; Jul 7, 2009 at 10:24 AM.
Reply
Old Jul 7, 2009 | 10:22 AM
  #16  
wankelbolt's Avatar
1% evil, 99% hot gas.
iTrader: (21)
 
Joined: Nov 2007
Posts: 1,110
Likes: 143
From: Forest Hill, MD
Where did you throw it out the window so I can go pick it up? I don't care about vibration, I want responsiveness and rigidity.
Reply
Old Jul 7, 2009 | 10:25 AM
  #17  
angeljoelv's Avatar
angeljoelv
 
Joined: Apr 2007
Posts: 1,635
Likes: 1
From: Florida
I might have it laying around somewhere.. Ill check.
This is how it looks now, just by taking the damper of,.....

Last edited by angeljoelv; Jul 7, 2009 at 10:29 AM.
Reply
Old Jul 7, 2009 | 10:38 AM
  #18  
ChrisRX8PR's Avatar
13B-RE
iTrader: (1)
 
Joined: May 2006
Posts: 695
Likes: 1
From: Plymouth, MN
I have a Ingalls Stiffy....

It is keeping my Renesis Engine mounts from ripping off...again! lol :P

Apparently when the engineers at Mazda designed the stock engine mounts they didn't expect anyone to make almost three times the stock power output @ engine through the stock mounts...haha...

It does transfer a bit of vibration now that my engine has a "brap brap brap" idle but when it was stock port it was fine because the stock engine barely vibrates at all...it did make a noticeable difference when getting on and off the throttle...no more "guminess" and the shifter barely moves from side to side when transitioning from off to on the throttle.

I like it...but like Angel said...it will transfer any vibration your engine has if you adjust it fully tight...I leave about 10mm of give total so I don't feel vibrations but it holds the engine from shifting past that.

Chris

p.s. I have a strut bar...its just not installed in the pick.
Attached Thumbnails anyone using an engine torque damper?-img_0012-small.jpg  
Reply
Old Jul 7, 2009 | 10:43 AM
  #19  
angeljoelv's Avatar
angeljoelv
 
Joined: Apr 2007
Posts: 1,635
Likes: 1
From: Florida
Im going to install it like you said chris.. I'll let you guys know if theres a diference.
Reply
Old Jul 7, 2009 | 05:37 PM
  #20  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
thanks guys--appreciate that. Answers some basic questions for me.
i wish we had options that wasnt a bandaid.
until we have nylon mounts or something like that --ingalls here i come.
dont think the weapon r is any good? Right?
olddragger
Reply
Old Jul 7, 2009 | 08:32 PM
  #21  
Z0oMzo0m's Avatar
Registered
iTrader: (4)
 
Joined: Jan 2008
Posts: 1,035
Likes: 2
From: PORT SAINT LUCIE, FL
I was watching the VIDS you guys have posted, and my shifter does the same thing, i was worried and thought maybe motor mounts also. But by the looks of it maybe its somwhat normal??

I had poly urathane motor mounts on my other car, and the vibration was bad, REALLY bad when you turn the A.C on. Sounded like my dash was going to sit in my lap. I would want a better solution but idk if it exist! lol
Reply
Old Jul 7, 2009 | 10:13 PM
  #22  
TeamRX8's Avatar
Registered
iTrader: (25)
 
Joined: Apr 2005
Posts: 26,932
Likes: 2,137
when it comes to rotary vibration, drivetrain flexure is a good thing

yes, it's normal
Reply
Old Jul 8, 2009 | 07:41 AM
  #23  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
Team---can you elaborate a little? I know when downshifting from a high speed 135 or so in 6th rev matching to 4th --at times she doesnt want to go--this is during hard braking (down to about 80mph)----i think it is driveline flex that is causing this.
Some flex IS good--sure agree on that. But at what point does it cross that line?
olddragger
Reply
Old Jul 8, 2009 | 03:27 PM
  #24  
olddragger's Avatar
Thread Starter
Registered
iTrader: (3)
 
Joined: Apr 2004
Posts: 10,828
Likes: 40
From: macon, georgia
Well I THINK I have found out how to make my own soft poly motor mounts--should be better than oem but not so hard it causes vibration issues. Stay tuned.
olddragger
Reply
Old Jul 9, 2009 | 01:44 AM
  #25  
swoope's Avatar
Zoom-Freakin'-Zoom
iTrader: (5)
 
Joined: Jan 2004
Posts: 14,603
Likes: 36
From: orlando, fl
Originally Posted by olddragger
Team---can you elaborate a little? I know when downshifting from a high speed 135 or so in 6th rev matching to 4th --at times she doesnt want to go--this is during hard braking (down to about 80mph)----i think it is driveline flex that is causing this.
Some flex IS good--sure agree on that. But at what point does it cross that line?
olddragger
where have you been?

and little talladega? you there?

beers
Reply


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -5. The time now is 01:03 AM.