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Dirt Car, loose in and loose out 3100# street stock

#1 User is offline   Steve_Voisinet Icon

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Posted 20 May 2014 - 10:05 AM

Spring rates;LF 800. RF 700LR 250. RR 225. 180 pounds of bite. 52% left side. All stock suspension. It is pretty fast and fairly competitive, but is loose on corner entry, either on or off the gas. I am driving it pretty smoothly, not pitching it in. The problem is not the brakes. It is also a little loose on corner exit, but not real bad.Should I try stiffing the front springs 100 pounds? Or softening the rear springs a bit, or something else?
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#2 User is offline   BIGcheater Icon

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Posted 20 May 2014 - 11:37 AM

Rear % ?
Roger Flickinger

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#3 User is offline   Steve_Voisinet Icon

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Posted 20 May 2014 - 04:59 PM

44% rear. That is the best I can get it so far under our rules.
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#4 User is offline   needforlatemodelspeed Icon

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Posted 20 May 2014 - 05:55 PM

Switch your front springs and try it. You may need to go 900 # straight up in the front or a 800 LF and a 900 LF
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#5 User is offline   kjh98 Icon

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Posted 20 May 2014 - 09:38 PM

If it's like the car you ran back at Owosso try less motor! Glad to hear you are still running.
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#6 User is offline   Steve_Voisinet Icon

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Posted 21 May 2014 - 07:00 AM

Trust me Kelly, too much power can't be the problem now! It has a bone stock Chevy 350 except for the camshaft. It's good to hear from you.
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#7 User is offline   Mopar93 Icon

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Posted 21 May 2014 - 07:29 AM

It's always easier to figure out a problem when familiar with the car, track, driver, etc. But here is my suggestion...

I would swap the front springs side to side to get more spring on the right front and I would also soften up the rear springs a little. That might help coming off the corner, but it might not do anything for getting into the corner.

Does it get loose just about the same time you are getting out of the throttle? I assume you are lifting suddenly and the back end comes on around. The engine and the drag on the entire drivetrain is slowing the rear tires down considerably while the front tires are allowed to roll more freely. Result: The back end comes around, it's like applying rear brakes. You either have to drive it accordingly or don't lift as much or apply a little front brake at the same time, get it cocked into the turn and throttle it to keep it that way.

I'm just guessing on the back end coming around while lifting. Only the driver knows for sure.

-Maurice
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#8 User is offline   mod11 Icon

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Posted 21 May 2014 - 08:28 PM

Steve,did you square the car,maybe someone built t he car long on the outside
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#9 User is offline   needforlatemodelspeed Icon

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Posted 21 May 2014 - 09:07 PM

Our truck was built with a lead on the right side and a lot of wedge in the right rear by the chassis builder. We built an exact copy of it with out a lead and it pushes like a dump truck and we can never get the setup right same shocks, springs, weights, percentages etc are almost close.

I would suggest like Maurice and I both stated above to move the springs around. If you have a bunch of springs or can get some to work with. I'm trying to think what we ran in our streeters. I would even try a LF 900 RF 1000 LR 225 and RR 175. Seems like we ran that a lot or 900 RF.

Where are you racing at?
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