jebuzws6

iTrader: (5)

Just installed some pacesetter headers and ORY on my car also got a mild tune after install. My problem is that when I accelerate from a stop i kind of feel like a banging and grinding feeling coming from the bottom of my car it persist sometimes till about the car shifts. This feeling does not happen all the time just sometimes, and it does not happen while im going WOT on the highway...any ideas of what it might be?

conan

iTrader: (5)

Can you feel the banging under your feet? Might be the Y pipe hitting the floor.

OnyxY2KSS

this is typical. some poly motor mounts might help. Speed inc sells them

udienow

iTrader: (18)

probably your y-pipe banging against your floor board. Time for some poly motor mounts.

jebuzws6

iTrader: (5)

I can feel it like under my feet an somtimes it feels like maybe the steering colum

udienow

iTrader: (18)

then it seems like the y-pipe is hitting the floor as the motor moves around. Some nice stiff poly motor mounts will fix this... have fun installing them though...

conan

iTrader: (5)

Check the y pipe right under your seat. The way the engine rocks will make the y pipe hit the driver side floor. If you have a buddy have him rev it while you watch you'll be able to see it hitting.

jebuzws6

iTrader: (5)

poly the same as solid motor mounts?

jebuzws6

iTrader: (5)

when I rev the car i dont feel it bangging but i will check to see how it looks

conan

iTrader: (5)

The stock moter mounts are rubber. you can replace them with polly blocks they dont flex as much as the stockers. Solid mounts the engine is bolted direct to the k member.

jebuzws6

iTrader: (5)

cant seem to find poly motor mounts on speed inc website

conan

iTrader: (5)

I got my poly mounts from texas speed.

udienow

iTrader: (18)

no, poly = polyurethane. They are way stiffer then stock, but still have a bit of cushion to em.

Solid = well solid. The engine have 0 cushion to move around and is directly bolted in to the body. I would imagine this causing a lot of vibration throughout the body, and therefore I wouldn't get solid mounts. But im no expert on those... however i dig my poly motor mounts.

udienow

iTrader: (18)

http://www.ws6project.com/user_stor/...871ef2ee646254
ws6 store ^^^^^


http://www.speedinc.com/catagory.cfm...%20/%20Chassis
speed inc ^^^^^ (look under prothane bushings (itemno 7-512))

jebuzws6

iTrader: (5)

thanks guys will order this tomorrow maybe might help my problem but im still going to look at the y pipe and see if bangs when i rev

udienow

iTrader: (18)

theres some work involved in putting new motor mounts in. Id research this before you buy them... unless your not doing them yourself, in that case nm.
When I had this done on my car it was a royal pain in the *** for the person doing it.
But it was worth it... I have the identical set up to you in terms of exhaust, and I have 0 banging issues. Though the rasp I got is another story.

z28voodoo

iTrader: (2)

OR http://www.ws6project.com/user_stor/...871ef2ee646254

jebuzws6

iTrader: (5)

anybody know the TSP link for the mounts?

jebuzws6

iTrader: (5)

drove around today on the way home it feels also like when you play with a stick across a wired fence the bumpiness is felt thru mainly 1st gear im going to try n get a vid n maybe pics tomorrow

udienow

iTrader: (18)

Thats not really the proper way to fix it.... Do it the right way, replace the motor mounts with poly ones.


The only mounts I could find on the TSP website are the solid ones. When I was looking for the Prothane brand when I was ordering other parts from TSP, they said they do not carry that brand.