Bottoming out

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Bottoming out

Post by Dinomyte on Sun May 29, 2016 10:37 am

Since I put side pipes on last summer I've had issues bottoming out.  I realize that clearance is less the way the exhaust is routed now, but didn't think I would have issues.

When I drive down one of our particularly "wavy" streets even at 15m/h or less I bottom.

I go down a large hill in my neighborhood and at the bottom I hear scrapes.

So my questions are

How can I tell if this is too much travel in my suspension (worn springs) ? (shocks are newish 3 year old front 2 year old back all KYB - about 5000miles on them)

or is it exhaust that's just too low ?

My guess is that these are the original springs.  (sorry no part numbers)

I've read every post I could find here but nothing describes how to know if you're springs are good or worn.

Thanks for the hlelp.
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Re: Bottoming out

Post by bigredlaguna on Sun May 29, 2016 3:56 pm

It could be that the original springs have sagged a bit over the years, but the factory springs generally didn't have a very high spring rate to begin with. This is how this generation of cars got the pillow soft ride. This also means that the car moves up and down a lot more when weight (or gravity ) is applied. Other than removing the pipes, you may need to replace the springs with a set that has a stiffer rate. The car will have a little bit rougher ride (aka road feel ) but it won't compress as easily and will keep your pipes off the road more often.
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Re: Bottoming out

Post by Dinomyte on Tue May 31, 2016 8:24 pm

Ok so this fits with what I was thinking. The springs I was looking at were the HD springs for the car. That's Moog CS584 (front) and 5387 rear. The other question is what about coil overs? Just a thought I had when talking to a friend.

thanks again to everyone.
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Re: Bottoming out

Post by Dinomyte on Sun Jun 05, 2016 1:43 pm

Finally got around to getting under the car and dinging out just how much clearance I've got underneath.

Drivers side 2 3/4"
pass side almost 3"

Any body got a number that's a minimum for these cars?  I know this is got to be too low.

thanks
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Re: Bottoming out

Post by Limey SE on Sun Jun 05, 2016 3:03 pm

My friend Dustin is St Louis has his pretty low, It cant fit a Coke 12 oz can under engine cradle

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Re: Bottoming out

Post by Dinomyte on Sun Jun 05, 2016 3:46 pm

Limey SE wrote:My friend Dustin is St Louis has his pretty low, It cant fit a Coke 12 oz can under engine cradle

Is that can on it's side (2 1/2") or standing up? Smile Also what's suspension setup like ?

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Re: Bottoming out

Post by Limey SE on Sun Jun 05, 2016 4:47 pm

I believe standing up






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Re: Bottoming out

Post by Dinomyte on Sun Jun 05, 2016 4:53 pm

That's almost double what I've got clearance under my exhaust.  I'm beginning to thing to cool factor of side-pipes isn't worth the aggravation / repairs.... I've replaced header / head gasket already and got a leak again.  Seems to happen after I bottom a couple of times.  I didn't even get a chance to re-torque them this time (maybe that's it this time)


Last edited by Dinomyte on Sun Jun 05, 2016 5:55 pm; edited 1 time in total
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Re: Bottoming out

Post by Limey SE on Sun Jun 05, 2016 5:23 pm

send them to the Good ol USA c/o of Limey LMAO

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Re: Bottoming out

Post by Dinomyte on Sun Jun 05, 2016 6:00 pm

Limey -- I laughed so hard I fell out of my chair.  I'll have to get a seat-belt from Mcarlo77 before I read another of your posts. . . . Smile

BTW that's a nice looking ride.
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Re: Bottoming out

Post by Hawk03 on Wed Jun 08, 2016 10:13 pm

I think if you were able to move the connection point up more you would be okay. The connection from the header to the side pipe seem to hang really low.

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Re: Bottoming out

Post by Limey SE on Fri Jun 10, 2016 7:02 pm

oh my That does hang low And I agree w/ Hawk try adjusting that Coinection Point that looks like where the trouble lies

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Re: Bottoming out

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