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post #1 of 20 (permalink) Old 03-30-2013, 04:28 PM Thread Starter
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koni yellows track/autox settings

Lots of discussions about how folks are running koni yellows but most seem to be for street settings. I ran mine half the season last year at 75% stiff in front and 50% in back and liked it. I just added Hotchkiss rear sway bar and wondering if it will change shock settings. Where are you performance guys running your yellows? Thanks,

Aaron

I am the Stig... Corksport SRI, Sure Torq R3, Sure BSD, JBR short shift plate, Eibach Pros, Koni yellows, Hotchkiss rear sway, EBC Yellow Stuff, Hankook Ventus RS-3 (track)
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post #2 of 20 (permalink) Old 03-30-2013, 10:56 PM
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Originally Posted by arsprod View Post
Lots of discussions about how folks are running koni yellows but most seem to be for street settings. I ran mine half the season last year at 75% stiff in front and 50% in back and liked it. I just added Hotchkiss rear sway bar and wondering if it will change shock settings. Where are you performance guys running your yellows? Thanks,

Aaron
Have your shocks been dynoed?

Read this:

http://farnorthracing.com/autocross_secrets18.html


FWIW I don't have Konis, but had that link in my bookmarks(ridiculous amount of great information all over that site) and thought I'd pass it on.

edit: Also you should come check out autocrossing with the Cincinnati SCCA some time since you're not terribly far... www.cincyscca.com I'd like to see your car(and see how well the Yellowstuff pads work). We are supposed to be hosting a National event in August as long as we get FAA approval to race inside the fence at the Wilmington Airport... should be very nice.

edit again: I'll be going to the Connersville, IN tri-region challenge June 16th... it's basically a halfway point between Indy and Cincy.

Last edited by flatlander937; 03-30-2013 at 11:04 PM.
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post #3 of 20 (permalink) Old 03-31-2013, 09:32 AM Thread Starter
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Originally Posted by flatlander937 View Post
Have your shocks been dynoed?

Read this:

http://farnorthracing.com/autocross_secrets18.html


FWIW I don't have Konis, but had that link in my bookmarks(ridiculous amount of great information all over that site) and thought I'd pass it on.

edit: Also you should come check out autocrossing with the Cincinnati SCCA some time since you're not terribly far... www.cincyscca.com I'd like to see your car(and see how well the Yellowstuff pads work). We are supposed to be hosting a National event in August as long as we get FAA approval to race inside the fence at the Wilmington Airport... should be very nice.

edit again: I'll be going to the Connersville, IN tri-region challenge June 16th... it's basically a halfway point between Indy and Cincy.
Holy crap! I didn't even know shocks could be dynoed, so the answer is no. This is an amazing article, and I'm much less concerned about the shock settings since apparently it's a crap shoot anyway! I'm scheduling a nasa tech inspection in the next couple weeks - gonna ask about getting dynoed. Thanks!

Full disclosure, I rarely autocross - maybe once every other year. I run track days and moving in the direction of racing. That said, June 16 is open - think I might just take you up on that!

Initial report on the ebc yellowstuff - holy f#*-ing crap. Only been on a week and not fully bedded in but brake pressure is half what is was with akebonos. I'm literally having to relearn heal/toe because it's so different.

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I am the Stig... Corksport SRI, Sure Torq R3, Sure BSD, JBR short shift plate, Eibach Pros, Koni yellows, Hotchkiss rear sway, EBC Yellow Stuff, Hankook Ventus RS-3 (track)
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post #4 of 20 (permalink) Old 03-31-2013, 12:52 PM
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Holy crap! I didn't even know shocks could be dynoed, so the answer is no. This is an amazing article, and I'm much less concerned about the shock settings since apparently it's a crap shoot anyway! I'm scheduling a nasa tech inspection in the next couple weeks - gonna ask about getting dynoed. Thanks!

Full disclosure, I rarely autocross - maybe once every other year. I run track days and moving in the direction of racing. That said, June 16 is open - think I might just take you up on that!

Initial report on the ebc yellowstuff - holy f#*-ing crap. Only been on a week and not fully bedded in but brake pressure is half what is was with akebonos. I'm literally having to relearn heal/toe because it's so different.
Yeah that site has lots of really good info. It's definitely not downright necessary to have your shocks dynoed... but just know that without having it done, you really do have no idea what the heck is going on with the rebound settings and it very well might be a waste of time.

I haven't been super "wowed" with my Hawk HPS... and the HP+ pads I don't want to deal with their horrific squealing and crazy dusting that gets baked onto the wheels(or so I've heard)... I think the EBC yellows might be installed late this year/early next year.

I'll send you a PM to try and remind you when the June 16th event registration opens.
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post #5 of 20 (permalink) Old 03-31-2013, 01:11 PM Thread Starter
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Yeah that site has lots of really good info. It's definitely not downright necessary to have your shocks dynoed... but just know that without having it done, you really do have no idea what the heck is going on with the rebound settings and it very well might be a waste of time.

I haven't been super "wowed" with my Hawk HPS... and the HP+ pads I don't want to deal with their horrific squealing and crazy dusting that gets baked onto the wheels(or so I've heard)... I think the EBC yellows might be installed late this year/early next year.

I'll send you a PM to try and remind you when the June 16th event registration opens.
Excellent! Fwiw, no dust but some faint squeeling which ebc says to expect until the break in coating disappears. I have a track day coming up this weekend - I'll report after that

I am the Stig... Corksport SRI, Sure Torq R3, Sure BSD, JBR short shift plate, Eibach Pros, Koni yellows, Hotchkiss rear sway, EBC Yellow Stuff, Hankook Ventus RS-3 (track)
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post #6 of 20 (permalink) Old 04-30-2013, 04:13 PM
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Have your shocks been dynoed?
where does one take or send off their shocks to be dynoed?

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post #7 of 20 (permalink) Old 04-30-2013, 05:10 PM
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A lot of performance garages will have shock dynos. I'm going to build a ghetto one with a friend of mine.

OP: I'd say you had those adjusted all wrong, even with an otherwise stock setup. Either way I'd suggest making them pretty stiff in the back, and pretty soft in the front. Personally I run mine 1 to 1.5 turns off full stiff in the back, primarily because of the non-linearity described on farnorth. Konis are supposed to be pretty good (i.e. NOT a crapshoot) as long as you avoid that last 1/2 turn of adjustment.

I run the fronts 1/2 off full soft in the front for autocross, and 1.5 off full soft on the street. I get less understeer and I can put down power better with them set softer, but it just feels better with them a bit stiffer, so I stiffen them on the road just because I enjoy driving them that way. When I race I set them softer because it's faster.

The reason you want stiffer in back is to reduce body roll and reduce understeer in transition/turn-in. The reason you want them soft in front is so that the inside wheel can get planted as fast as possible to reduce understeer and put down power. A stiffer sway bar helps all of these goals, and also helps fix the same problems in mid-corner.

Brakes:

I run Hawk HPS. I like how they feel relative to stock, but I don't think they make me any faster. This car has such massive brakes that stopping power isn't really an issue even on stock pads. They are nice, but if I did it again I'd probably save my money.
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post #8 of 20 (permalink) Old 04-30-2013, 05:27 PM
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About to say, Arsprod you will likely want to soften the front and stiffen the rear due to the stated reasons (FWD reasons at that).

I never had a spring setup; but it's funny you mention a half valve turn on the Konis because my BCs do the same thing.

IMO if you don't autocross all the time like some guys do, a shock dyno won't really do much for you, it seems all good in theory but for the price to knowledge for a 'fun' car... doesn't make it worth it (money spent better elsewhere). Especially when values like that change as the shocks begin to die out.

Another IMO I agree with kingsley on the brakes; my stock rotors and pads were pretty damn strong for being stock brakes. Stepping up to a stronger pad if you want to when they wear down though wouldn't hurt.

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post #9 of 20 (permalink) Old 04-30-2013, 05:36 PM
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Yeah, if you're curious, it definitely can't hurt to try some sporty pads. I do enjoy the way the HPSs feel, I just wouldn't say it's necessary, or worth the cost. Maybe for track use sporty pads might matter more, due to temperature issues.

I agree, a shock dyno isn't worth doing if you aren't super srs bzns, in which case you probably have super pimp shocks like AST or Moton or something. They are good for a couple things: A) on shocks like Konis, you can use the dyno to take advantage of the last bit of adjustment by dynoing them to see how soft/stiff you can get them while still achieving equal behavior on the laft/right side. or B) if you run pimpy shocks, you can use the dyno to compare damping curves between different vendors, or set them up for a particular spring rate if you desire a precise damping ratio C) if you are re-valving a non adjustable shock, like a Bilstein, you need a dyno to see how you need to alter the shim stack.

In other words, you don't need a dyno if you aren't aiming to win a national competition, or aren't working on a dedicated road race car.
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post #10 of 20 (permalink) Old 04-30-2013, 08:21 PM Thread Starter
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Sounds like I'm running my konis very close to your suggestions. Rears are at abt 85% stiff. I probably run fronts a little stiffer than autox but softer than rears. I might try softening the fronts a bit this weekend at the track.

I was at a performance shop a couple weeks ago to get NASA inspection and asked him about shock dynoing. He said they do it and it's not horribly expensive, but echoed the sentiment that it's unnecessary except for dedicated race cars

I am the Stig... Corksport SRI, Sure Torq R3, Sure BSD, JBR short shift plate, Eibach Pros, Koni yellows, Hotchkiss rear sway, EBC Yellow Stuff, Hankook Ventus RS-3 (track)
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