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-   -   Weird wobble on acceleration (https://www.ft86club.com/forums/showthread.php?t=74851)

ReaperX43 09-25-2014 03:17 PM

Weird wobble on acceleration
 
since I got my car, when i accelerate from a dead stop (gentle acceleration), something in the back feels like its wobbling/rumbling/low frequency vibration. I'm not sure if that is normal maybe because of the automatic transmission or the LSD or if there is something actually wrong with it. anyone have any input?

Thank You

BRZBot 09-25-2014 03:36 PM

Is it when the car is just warming up or all the time? My auto does it on the first turn out of my neighborhood in the morning but that's it.

tyrantcf 09-25-2014 03:39 PM

My car seems to do it when cold, I have the 6MT. I always thought this was attributed to the LSD

ReaperX43 09-25-2014 04:16 PM

Yeah its usualy my first turn, but I usually warm up the car till it idles to sub 1000 rpm though. But you guys think that it is normal? At least I'm not the only one that is experiencing this.

Gords_zenith 09-25-2014 04:48 PM

It's IMO normal. I've noticed this too, but it goes away after a few mins. I think these tires are very susceptible to temperature variations and will very minimally flat spot causing a vibration and wobble. Also, if you warm your car up, you're only warming the engine fluids until you actually start driving.

ReaperX43 09-25-2014 05:09 PM

Thanks for the input its greatly appreciated

pushrod 09-25-2014 07:40 PM

It's the diff.

Tcoat 09-25-2014 08:24 PM

Quote:

Originally Posted by tyrantcf (Post 1960866)
My car seems to do it when cold, I have the 6MT. I always thought this was attributed to the LSD

What he said!

fatalelement 10-04-2014 12:15 AM

As others said, it's the diff. When I pull out of my neighborhood in the morning (about 15 seconds from my driveway), I make a right turn slightly uphill onto a major boulevard and it always seems like it's struggling to transmit drive evenly despite the fact that I ease it out well under 2k rpm and I do it slowly. It goes away within a minute or two.

But for what it's worth, you aren't crazy. This bothered me for a bit too until I talked to some people about it.

Ultramaroon 10-04-2014 12:56 AM

Quote:

Originally Posted by pushrod (Post 1961142)
It's the diff.

this. google torsen lsd. you want it because racecar.

Tcoat 10-04-2014 01:04 AM

Quote:

Originally Posted by Ultramaroon (Post 1971689)
this. google torsen lsd. you want it because racecar.

I googled LSD and although I think it may indeed make you have a weird wobble the site said there would be other effects as well! Don't think it be a god idea while driving either race car or not.

fatalelement 10-04-2014 01:06 AM

Quote:

Originally Posted by Ultramaroon (Post 1971689)
this. google torsen lsd. you want it because racecar.

http://jalopnik.com/how-to-build-a-d...the-1516627252

The title of this edition of their drift car build is "Weld the Diff, Yo!"

I think it would fix the problem entirely! :thumbup:

Ultramaroon 10-04-2014 01:31 AM

Quote:

Originally Posted by fatalelement (Post 1971697)
http://jalopnik.com/how-to-build-a-d...the-1516627252

The title of this edition of their drift car build is "Weld the Diff, Yo!"

I think it would fix the problem entirely! :thumbup:


Ultramaroon 10-04-2014 01:38 AM

Quote:

Originally Posted by Tcoat (Post 1971695)
I googled LSD and although I think it may indeed make you have a weird wobble the site said there would be other effects as well! Don't think it be a god idea while driving either race car or not.

you get some too

fatalelement 10-04-2014 01:40 AM

Quote:

Originally Posted by Ultramaroon (Post 1971727)

I hear that in f1, the secret to that sweet cornering capability isn't ground effect and downforce, but that all the pit crews sneak in there at night and weld the diff (yo)

Sent from my HTC One_M8 using Tapatalk

Ultramaroon 10-04-2014 01:44 AM

Quote:

Originally Posted by fatalelement (Post 1971729)
I hear that in f1, the secret to that sweet cornering capability isn't ground effect and downforce, but that all the pit crews sneak in there at night and weld the diff (yo)

Sent from my HTC One_M8 using Tapatalk

http://static.giantbomb.com/uploads/...uper_super.jpg

fatalelement 10-04-2014 01:45 AM

Quote:

Originally Posted by Ultramaroon (Post 1971730)

They also put on sweet axlebacks and paint the calipers red ;)

We are derailing this real hard hahaha

Sent from my HTC One_M8 using Tapatalk

Ultramaroon 10-04-2014 01:49 AM

Quote:

Originally Posted by fatalelement (Post 1971732)
We are derailing this real hard hahaha


Tcoat 10-04-2014 01:57 AM

Quote:

Originally Posted by fatalelement (Post 1971732)
They also put on sweet axlebacks and paint the calipers red ;)

We are derailing this real hard hahaha

Sent from my HTC One_M8 using Tapatalk

Not a big deal to derail now as 150 more answers saying exactly the same thing will become meaningless. The fun part is people will actually do that since they look at the first and skip the rest. Wanta start a pool on how long it takes before somebody else answers the op?

Tcoat 10-04-2014 02:02 AM

Quote:

Originally Posted by Ultramaroon (Post 1971727)

The google results for "speed" don't look good for driving either.


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