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Car Bouncing

Posted: Mon Dec 22, 2014 2:19 am
by loidsam86
Hi guys...I got Mitsubishi FTO 1994 (Auto)....I am having big problem in my car...My car is bouncing too much...I feel like I have flat tyers...I have been to couple of mechanics but they said there is no problem in this car...Dont know what to do....Please guys give some suggestions...Thanks

Re: Car Bouncing

Posted: Mon Dec 22, 2014 7:30 am
by dstocks
Sounds like your shock/spring combination (suspension) is too firm. Do you have coilovers or aftermarket shocks and springs? Aftermarket suspension can be substantially harder than factory, leading to a bumpy ride on roads that are uneven. Also, what size rims are you running and what it the profile on your tyres. 18" rims with a 35/40 profile will make for a fairly hard ride as well. The factory rims are 16" which are quite abit softer.

Re: Car Bouncing

Posted: Mon Dec 22, 2014 3:19 pm
by loidsam86
First of all thanks for reply...

Tyers size is 215/40ZR18
and rim size is 18X8 5/114.3 45M

Recently I went to Bob jane for wheel alignment and i told them that car is bouncing...They checked and asked me whether I cut the springs to decrease the Height...

Re: Car Bouncing

Posted: Mon Dec 22, 2014 4:43 pm
by Daniel2019
215/40/18s are going to be very harsh, suggest going to a 17 inch wheel with a higher profile (225/40 or 215/45 or higher)

You probably also have hard aftermarket springs. Have a look and see what color your springs are and what kind of shocks you have. May need to swap your springs.

Re: Car Bouncing

Posted: Mon Dec 22, 2014 5:45 pm
by loidsam86
do you know from where to get springs ? Thank you...

Re: Car Bouncing

Posted: Mon Dec 22, 2014 6:14 pm
by dstocks
KYB Excel G are the go:

Front L: 334154 Front R: 334155 Rears: 341140

Available from practically anyone that stocks suspension and are reasonably priced.

Make sure you dont have coil overs before you buy though as this is just the shocks and not springs/strut tops. As Daniel said,17" rims will make a big difference too.

Re: Car Bouncing

Posted: Mon Dec 22, 2014 8:32 pm
by loidsam86
Thanks...

Re: Car Bouncing

Posted: Mon Dec 22, 2014 10:48 pm
by Daniel2019
Excel Gs are shocks.

I'd be getting a set of king springs if I were you.

Re: Car Bouncing

Posted: Tue Dec 23, 2014 12:11 am
by loidsam86
Will try that...SO I am bit confused now...sud I change Tyres first then Shock absobers ?

Re: Car Bouncing

Posted: Tue Dec 23, 2014 8:13 am
by dstocks
OK, heres a summary:

- Changing the wheels/tyres will definitely help as the greater the rim size, the harsher the ride. 17's are the best balance between handling and comfort.

- Changing the springs will help IF the ones you have are aftermarket and stiff or have been cut. If the coils of the spring are black then then they are mos tlikely factory and there is no point changing them.

- Changing the shocks will help IF the ones you have are aftermarket and stiff or buggered. The Excel G shocks are a good balance between comfort and handling and the closest youll get to factory ride.

A normal strut setup has 3 components, the shock, the spring and the strut top. These can be replaced individually. IF you have coilovers however, all 3 bits are wrapped up in a single part and all 3 must be replaced.

Hope this helps

Re: Car Bouncing

Posted: Tue Dec 23, 2014 5:08 pm
by loidsam86
Got it...Thanks

Re: Car Bouncing

Posted: Tue Dec 23, 2014 6:01 pm
by Daniel2019
Yep +1 on what dstocks said.

Re: Car Bouncing

Posted: Thu Dec 25, 2014 12:55 pm
by shadowarrior
Also, if you are looking for new springs, try and search for progressive springs. Makes the car way smoother for daily drive and long trips.