anyone using this--like the Ingalls stiffy?
Or anyone know where nylon motor mounts can be found?
I dont want solid ones.
olddragger

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

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.

we don't have any torque :rofl::rofl::rofl::rofl::rofl:

^ FI does, but not NA

(without reading thread) Wouldn't that require Engine Torque

(Carry On)

If I had one lying around, I would put it in my car just for the hell of it.

it's just dead weight

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?

Denny you know Juan has one on his, he put it on when he went to the bigger pulley...

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.php?f=2&t=1472&start=30#p56236
OD

try again--better link
http://vimeo.com/5218353
OD

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

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

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.
http://i157.photobucket.com/albums/t41/angeljoelv/IMG_6453.jpg
http://i157.photobucket.com/albums/t41/angeljoelv/IMG_6454.jpg

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.

I might have it laying around somewhere.. Ill check.
This is how it looks now, just by taking the damper of,..... :)
http://i157.photobucket.com/albums/t41/angeljoelv/IMG_8294.jpg

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.

Im going to install it like you said chris.. I'll let you guys know if theres a diference.

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

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

when it comes to rotary vibration, drivetrain flexure is a good thing

yes, it's normal

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

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

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 :beer:

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

Keep me in the loop, I'm willing to help fund if necessary. :)

motor mounts yumm...

drain the OE motor mounts and fill them with pourable polyurethane, been done on the forum before, couple tem with the Mazda Motorsport rear subframe bushings, problem solved.

where could i find it here in the third world? ;)

http://www.rx8club.com/showthread.php?t=105730


http://www.mcmaster.com/#8644k11/=2ocqil


.

cool.
OD

http://www.rx8club.com/showthread.php?t=157592

Thank you, sir!

Just stumbled on this thread and you guys should definitively pester David Garfinkle on the Rx7 forum. He made the torque brace on my FD and it does not transmit vibration through the chassis and that is because both sides of the brace are made from rubber bushings. I would be curious to see if it would remove and of the cursed stuttering and jerkiness of the Rx-8...

well --spoke with someone a hell of a lot smarter than me about my track "problem" occurring mostly during braking.-- he recommended passenger side only with no harder than an 80A and a differential brace--I had not thought of that.
olddragger

nevermind.....

Keep me in the loop, I'm willing to help fund if necessary. :)

if you are willing to help fund it i can have them done in 60 or 80 shore.

well --spoke with someone a hell of a lot smarter than me about my track "problem" occurring mostly during braking.-- he recommended passenger side only with no harder than an 80A and a differential brace--I had not thought of that.
olddragger

IMO the subframe bushings I referred to would serve you much better, unless you're more concerned about your drivetrain moving around than you are about both your drivetrain and your rear suspension moving around - the differential mounts to the rear subframe assembly, bracing it only shifts the load onto the subframe .... :wiggle:

http://www.rx8club.com/attachment.php?attachmentid=142017&stc=1&d=1247333488

i see what you mean Team--car does have 70K on it--the bushings have to have some wear/age on them plus even new they were probably not up to the stress we put on them. Thinking about it they would give me the same results---this may be a smart thing to do.
Go Team!!
Need all the help I can get to keep my butt planted.
OD