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bukkaz
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PostSubject: snap oversteer   Sat Oct 25, 2014 11:25 am

It's been a while since I've asked for advice on tuning but having a real hard time with my Fiat abarth sedan, when I go into tight corners I can dive it into the corners but as soon as I get back on the throttle I get a stupid amount of oversteer even if it's like 15% throttle, I've tried everything I know about tuning to try and sort this out but still no luck, I'm finding it a real shame because my best time in it is a 4:35:2 and I know if I can get this oversteer sorted I can get it into the low 34's maybe even 33's it's a really capable car, any advice would be greatful
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Ialyrn
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PostSubject: Re: snap oversteer   Sat Oct 25, 2014 12:09 pm

Soften the rear suspension by 50lbs, and increase the rebound stiffness at the front, while decreasing the bump.

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bukkaz
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PostSubject: Re: snap oversteer   Sat Oct 25, 2014 12:19 pm

I've done them things but will try softening the rear springs some more
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KraZe
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PostSubject: Re: snap oversteer   Sat Oct 25, 2014 3:53 pm

That doesn't sound like snap oversteer it sounds like your diff accel is too high? If your car oversteers mid corner that's the suspension rolling like a bitch, stiffen that fucker up yo

_
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bukkaz
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PostSubject: Re: snap oversteer   Sat Oct 25, 2014 4:27 pm

My accel is at 7% if I put it any lower I won't be able to get round the high speed corners very fast
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KraZe
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PostSubject: Re: snap oversteer   Sat Oct 25, 2014 4:41 pm

Increase your front rollbar stiffness to cancel out the yaw rate of your car around slow corners that could help.

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Miata Gen 2 - 4:31.750 (NDH) || Mazdaspeed RX8 - 4:34.041 (NDH) || Acura NSX '97 - 4:35.869 (NHC)

STREETVERSION | GT: il KraZe li | PSN: StV_KraZe | Fanatec CSR w/ CSR Elite Pedal | K. Huertas
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bukkaz
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PostSubject: Re: snap oversteer   Sat Oct 25, 2014 5:11 pm

That's done the trick thanks kraze Smile
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bukkaz
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PostSubject: Re: snap oversteer   Wed Nov 12, 2014 2:58 pm

Is there any other way to reduce sudden oversteer? Besides softening the rear springs and roll bars or reducing the accel on the diff, I've already stiffened up my from roll bars and springs but can't think of anything else
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Maji of Bacon
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PostSubject: Re: snap oversteer   Wed Nov 12, 2014 3:08 pm

increasing the ride height so the front is higher maybe?

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bukkaz
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PostSubject: Re: snap oversteer   Wed Nov 12, 2014 3:12 pm

Hmmm might have a little effect, I will try it when I next go on
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PostSubject: Re: snap oversteer   Wed Nov 12, 2014 3:23 pm

What I find effective (This is on GT6, not sure about Forza) is setting up the car's rear suspension settings to understeer tend to negate snap oversteer or sudden oversteering in FR cars.

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bukkaz
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PostSubject: Re: snap oversteer   Wed Nov 12, 2014 3:47 pm

Tuning on gt6 won't be effective on forza 4, besides I've already set the suspension to understeer but still sudden oversteer
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galeforce97
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PostSubject: Re: snap oversteer   Wed Nov 12, 2014 7:02 pm

hey bukkaz could you send me your 86 tune I want to see how different my fairlady is

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PostSubject: Re: snap oversteer   Wed Nov 12, 2014 7:02 pm

I think you may have your springs too soft somewhere.

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bukkaz
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PostSubject: Re: snap oversteer   Thu Nov 13, 2014 5:28 pm

The springs are stiff
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