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 AWD understeer

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Velarys
KraZe
lBrawnyemperoRl
that slime kb
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that slime kb
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PostSubject: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 9:39 am

sup guys i am currently tuning an A class evo 9 for the uphill. it handles pretty good but it tends to understeer on corner exit. i have sport springs on it but i figure a race set up will solve the understerring. if i put race springs on it what should i set them at? or is it my diff set up. my front is 85% accel 0% decel my rear is 88% accel and 9% decel and its 55% biased to the rear.thanx in advance for anyone who has answers
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lBrawnyemperoRl
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 9:42 am

I think you should lower your front diff setting and put more power to the rear wheels. You could get minimal oversteer but i dont think it slows down as much as under does
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KraZe
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 9:56 am

Sport springs are good enough for 4WDs. Try removing the diff and just run with the stock LSD.
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that slime kb
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 10:06 am

^ hmmmm very interesting. im going to try both suggestions and see which one feels better.thanks fellas
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Velarys
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 11:39 am

With AWD's I set the front diff up like an FF, and the rear pretty high (60/70 accel, similar decel), which works for me. But Kraze is quite right, the stock diff is often better unless you're a tuning god.

As for suspension, soft as shit in the front and fairly stiff in the rear (oh baby) is how my R32 and Evo 6 are. I have some oversteer issues on the uphill but going down they are perfect. Take from that what you will.

Disclaimer: I am a terrible tuner. Do not take any of my advice. Ever. The only reason I am quick(ish) in my cars is because I'm used to that sort of handling.
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Steinkrunk
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 11:54 am

On my r32 I set the front at 20/0, rear at 30/20 and 80% split to the rear. As for springs and arb's I set the front slightly softer than the rear. I keep toe at 0.2-0.4 for the front and 0 for the rear. I love the way my r32 handles. Crisp turn in without any oversteer, and I'd say its either neutral or slightly oversteer on the limit.

Also for uphill I set my gear ratios very high so you top out in 6th at the end of the final straight. That way when you shift your torque is going down and horsepower is going up. Makes full throttle shifts and putting the hammer down coming out of a corner less prone to spinning the wheels.

Also take my advice with a grain of salt, this works for me. Everyone has their own style of driving and should tune accordingly. Tune so you feel comfortable in the car and it reacts the way you want it to. Then speed will come with practice.
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Koolaid
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 12:45 pm

jesus your accel setting is in the 80's??
surprised your'e not "running in the 90's" lol
In all seriousness, i dont think any touge car should have more than 50 accel and i run less than half of that
Yeah you want the front diff set similar to an FF, so 0 decel is good so that when you let off the throttle in a tight corner it'll turn on its own after the entry.
The rear diff is obviously similar to a FR but you can run a lot less rear decel like an FF and have it lock earlier for lift off oversteer, which is easily controllable in awd.
If youre still understeering out of corners still its probably a suspension problem.


Last edited by Koolaid on Wed Apr 24, 2013 1:38 pm; edited 1 time in total
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KraZe
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 1:07 pm

All along the REAL meaning of that song is running 90% accel LOLOLOLOL!!!11!!1!
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lBrawnyemperoRl
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 1:57 pm

Who woulda known xD
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JenosaidoZombie
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 2:07 pm

Velarys wrote:


Disclaimer: I am a terrible tuner. Do not take any of my advice. Ever. The only reason I am quick(ish) in my cars is because I'm used to that sort of handling.
I LOVE this disclaimer, it describes me perfectly too!
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KraZe
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 2:38 pm

^The longer you drive with crappy tunes the better you become as a driver. Once you drive a car with a perfect setup you'll feel like a god lol.
Spoiler:
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King914
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 3:16 pm

^ or realizing that certain cars have different braking points could help also like ex. EVO 6 brake early so by the time your heading into the corner your already have the car situated turning into the apex and gassing it out i always liked the slow in fast out method with awd the more foward force you make coming out of a corner the faster the car will move into the next section

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that slime kb
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 4:14 pm

thanks for the advice. this is the first AWD car that i've ever tuned for the touge so it's all new to me. i must say i love the massive amount of grip this thing has.
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KraZe
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 5:43 pm

Yeah you can get addicted to DAT GRIP that is why I love A class Uphills because the massive traction from AWDs is only setback by the poor acceleration where in RWDs it's the complete opposite. Makes for very interesting battles and strategies Wink
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lBrawnyemperoRl
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 5:46 pm

yeah i had that evo nine back in the beginning of my hillclimb racing times Smile good times almost beating bukkaz back then Wink
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King914
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 10:20 pm

KraZe wrote:
Yeah you can get addicted to DAT GRIP that is why I love A class Uphills because the massive traction from AWDs is only setback by the poor acceleration where in RWDs it's the complete opposite. Makes for very interesting battles and strategies Wink

turn those corner fast enough in a evo shell be right there with the nsx i raced kirk both in evos and we ran 4:40's NUH
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JenosaidoZombie
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeWed Apr 24, 2013 10:30 pm

KraZe wrote:
^The longer you drive with crappy tunes the better you become as a driver. Once you drive a car with a perfect setup you'll feel like a god lol.
Spoiler:
you know I never thought of it like that. thats a good piece of advice.
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KraZe
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeThu Apr 25, 2013 3:13 am

King914 wrote:
turn those corner fast enough in a evo shell be right there with the nsx i raced kirk both in evos and we ran 4:40's NUH
Damn that's fast we should run some hillclimbs together yo.
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King914
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PostSubject: Re: AWD understeer   AWD understeer Icon_minitimeThu Apr 25, 2013 7:36 am

yea kraze itll take a couple runs to wipe off the cobb webs been running my eg so long
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