Koni Yellow Sport AutoX setup

cruzthepug · 05-23-2015, 08:43 AM

Now that I've got several events with my setup (75% stiff front, 10% rear), I was curious what effect going full stiff in the front will have? I have a event tomorrow and thought I would try it, but wanted to get a couple of opinions of the effect.

Will it make the car push more? Less?

I feel like the car is pretty good now and I can loosen it up if I need to with just a air pressure adjustment in the rear. I'm on 285 RS3's all around and usually run 40psi in the front and 34 in the rear. Going up or down 1-2 psi in the rear really makes a big difference on how the car acts. Most of the lots we use are sealed asphalt FWIW.

Thoughts?

240se · 05-23-2015, 08:49 AM

What sway bars and springs are you running? Stock front camber?

cruzthepug · 05-23-2015, 08:53 AM

Quote:

Originally Posted by 240se

What sway bars and springs are you running? Stock front camber?

Eibach front sway (stock rear) stiff setting, OEM springs. Stock camber.

240se · 05-23-2015, 05:56 PM

Quote:

Originally Posted by cruzthepug

Eibach front sway (stock rear) stiff setting, OEM springs. Stock camber.

I'm running the Eibach front bar on the stiffest setting and I'm planning to get the Koni shocks so I'm interested in your setup. I'm surprised my setup doesn't under steer horribly because the front bar is very stiff but I guess the reduced body roll helps the front grip with the limited (-1deg) front camber.

cruzthepug · 05-25-2015, 06:18 AM

Did my first 3 runs yesterday with the same setup I've been using. Changed the front shocks to full stiff on the 4th run (same tire pressure, 40F/34R). Felt more responsive but just a bit loose in the rear. After lunch I started lowering pressure in the rear 1 psi, better. Lower again 1 psi the next run and had my fastest run. The last 2 runs I did the same, lowering the rear 1 psi each. Don't think that really made any improvements, car started pushing just a bit, but some of that may have been I was driving harder, not sure.

On sealed asphalt, full stiff front with 40psi, and 10% stiff rear, 32psi looks to be a better starting point than my previous settings.

AK370Z · 05-28-2015, 12:10 AM

Quote:

Originally Posted by cruzthepug

Did my first 3 runs yesterday with the same setup I've been using. Changed the front shocks to full stiff on the 4th run (same tire pressure, 40F/34R). Felt more responsive but just a bit loose in the rear. After lunch I started lowering pressure in the rear 1 psi, better. Lower again 1 psi the next run and had my fastest run. The last 2 runs I did the same, lowering the rear 1 psi each. Don't think that really made any improvements, car started pushing just a bit, but some of that may have been I was driving harder, not sure.

On sealed asphalt, full stiff front with 40psi, and 10% stiff rear, 32psi looks to be a better starting point than my previous settings.

Do you have video of your run? how competitive are you in your region? (pax/raw).
I am 39F and 34R (cold psi) with RE71R. very similar. Though I still have that whacky setup (front soft 5/10 stiff and rear 8/10 stiff lol) and it works for me.

cruzthepug · 05-28-2015, 07:28 AM

Quote:

Originally Posted by AK370Z

Do you have video of your run? how competitive are you in your region? (pax/raw).
I am 39F and 34R (cold psi) with RE71R. very similar. Though I still have that whacky setup (front soft 5/10 stiff and rear 8/10 stiff lol) and it works for me.

I'll have video processed soon. I'm usually top 20 raw/pax in most of the local events, but in BS there are some really good drivers that have been doing this for years and I'm still trying to catch up.

redline10000 · 06-04-2015, 02:35 PM

Quote:

Originally Posted by cruzthepug

Did my first 3 runs yesterday with the same setup I've been using. Changed the front shocks to full stiff on the 4th run (same tire pressure, 40F/34R). Felt more responsive but just a bit loose in the rear. After lunch I started lowering pressure in the rear 1 psi, better. Lower again 1 psi the next run and had my fastest run. The last 2 runs I did the same, lowering the rear 1 psi each. Don't think that really made any improvements, car started pushing just a bit, but some of that may have been I was driving harder, not sure.

On sealed asphalt, full stiff front with 40psi, and 10% stiff rear, 32psi looks to be a better starting point than my previous settings.

I ran into this same thing last weekend. I used to have my rears at 35psi with stock shocks and now with the Konis I have to drop the PSI down to 32psi to get a good amount of grip. My question is how do I know if 32psi is too low without the use of a pyrometer? I have been using the chalk method but i don't know how accurate that is.

stuy486 · 06-04-2015, 08:26 PM

If you're going faster with them like that, then it's better

05-23-2015, 08:43 AM	#1 (permalink)
cruzthepug Base Member Join Date: Feb 2014 Location: Huntsville, AL Posts: 245 Drives: 2014 370Z Touring Rep Power: 11	Koni Yellow Sport AutoX setup Now that I've got several events with my setup (75% stiff front, 10% rear), I was curious what effect going full stiff in the front will have? I have a event tomorrow and thought I would try it, but wanted to get a couple of opinions of the effect. Will it make the car push more? Less? I feel like the car is pretty good now and I can loosen it up if I need to with just a air pressure adjustment in the rear. I'm on 285 RS3's all around and usually run 40psi in the front and 34 in the rear. Going up or down 1-2 psi in the rear really makes a big difference on how the car acts. Most of the lots we use are sealed asphalt FWIW. Thoughts? __________________ Ark Performance / Eibach / Forgestar (CF10's Daily, F14's Race)/ Project Kics / K&N / Z1 / TWM Performance / RJM Performance / Koni / Hawk Performance

05-25-2015, 06:18 AM	#5 (permalink)
cruzthepug Base Member Join Date: Feb 2014 Location: Huntsville, AL Posts: 245 Drives: 2014 370Z Touring Rep Power: 11	Did my first 3 runs yesterday with the same setup I've been using. Changed the front shocks to full stiff on the 4th run (same tire pressure, 40F/34R). Felt more responsive but just a bit loose in the rear. After lunch I started lowering pressure in the rear 1 psi, better. Lower again 1 psi the next run and had my fastest run. The last 2 runs I did the same, lowering the rear 1 psi each. Don't think that really made any improvements, car started pushing just a bit, but some of that may have been I was driving harder, not sure. On sealed asphalt, full stiff front with 40psi, and 10% stiff rear, 32psi looks to be a better starting point than my previous settings. __________________ Ark Performance / Eibach / Forgestar (CF10's Daily, F14's Race)/ Project Kics / K&N / Z1 / TWM Performance / RJM Performance / Koni / Hawk Performance

06-04-2015, 08:26 PM	#9 (permalink)
stuy486 Base Member Join Date: Oct 2013 Location: Santa Barbara, CA Posts: 81 Drives: '12 370Z MB M6 Rep Power: 12	If you're going faster with them like that, then it's better __________________ 2014 SCCA C-Street National Champion 2015 SCCA STU National Champion

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05-23-2015, 08:49 AM	#2 (permalink)
240se Enthusiast Member Join Date: Nov 2013 Location: VA Posts: 259 Drives: Gunmetal 12' Rep Power: 12	What sway bars and springs are you running? Stock front camber?