RCE Springs Koni Yellow inserts Video at work.
 

Here is video of some RCE springs and Koni yellow inserts at work. @Racecomp Engineering
[ame]http://youtu.be/4PToOkNim7I[/ame]

Looks like that exhaust hanger gets a pretty good workout

Lol @ the cone in 1:06.

That video ruled!! Lol'd at the cone too. That exhaust hanger looks like it's made out if jelly.

That's the Perrin Hangers and perrin catback. @PERRIN_Chris These do like to shake a lot huh

Fail on the cone lol. Great video though. What settings u on

front and rear on the konis 1 full turn from full stiff. We run on concete but I have ran this on blacktop and asphalt.

28 psi front
25 psi rear
245/40/rs3s on 17x9 rpf1s.
-2.5 camber up front
-1.9 camber rear
toe a little out in the front a little in on the rear.

Very cool!

You can see how much the rear subframe moves around.

Those tire pressures are awfully low...

- Andy

Those tire pressures are spot on if you don't over drive the tires.
This weekend I ran the rears at 24 psi. Remember this is autocross not track days.

I got 204 runs and about 4k street miles on these. on the street I run them at 33 psi all day.

Right size rims helps a lot and alignment and the driver.

These are 245s on 17x9 rims. So the shoulder has no pinch and a very slight stretch keeping the sidewalls more stiff. Last year when I ran 225/45/17s on my stock rims I had to run them at 35 psi. When I was driving my FWD car on RS3s I had to run them at 40psi in the front not to roll over.

Andy I will be doing another video with your tarmac prototype springs in the spring.

I run a very similar wheel tire setup and would never run the RS3 that low in autox. I understand you are trying to get the tires to roll to maximize that camber but I think you need less camber and more pressure to be honest.

Whenever I dropped below 30PSI on -2.0F it went from grip to slop. (autox)

I like the video a lot it shows two things, as mentioned by RCE subframe movement and sway bar load.

The video reminded me of this one of Aussie V8 supercars. This is a front wheel obviously.

Completely not a comparable car/situation, but just fun to see.

V8 Supercars run a lot of camber, very stiff suspension, and soft tire pressures (in the same range of @feldy or softer). I don't know much else about the cars. But...cool video.

[ame="http://www.youtube.com/watch?v=1SFAt9cqZyU"]V8 Supercars 2009 Hidden Valley Jamie Whincup Tyre Cam - YouTube[/ame]


- Andy

Some of its just driving style. I know a ton of str guys that run the same kind of pressures I do. what works for me not work for you. for me I found a setup that is predictable to my driving style 100 percent of the time no questions. I took one ftdi event this year and the car was not sloppy at all.

Maybe you are right I just feel like those side walls are not stiff enough for those pressures. Guess its an excuse to hook up again for more autox to test!

Cool vid...I have a taller side walls (225/50-16) but I find 35 F is the lowest I can go before to much roll over.... and 32 R w/ almost no roll over on my RS3's.

Seeing this vid also remindes me I need rear sub frame bushings.

last time I seen you I think you were running 225s on stock rims. and I agree for those the pressures are to low. we have one event left in November 9th and tenth come down for the weekend it will be fun.

also I know you think the surface jacked your alignment last time but in 3 years of using this site I never had that issue.

if you come down on Friday I can give you a tour of volition. you would have fun.

I am on 235s now not much different really. I know your pavement was very bumpy most guys run a softer setup?

Cool video.

Lot of movement of the swaybar/chassis bushing, especially considering the small-ish range of motion of the swaybar to begin with.

Also interesting that the subframe doesn't move that much laterally, it seems to be mostly vertical. I installed subframe bushing inserts on my GR STI and it seemed to really make the rear end more responsive and predictable.

DAT CROSSMEMBER FLEX

i'm almost willing to get dumped into STX just to outfit the car with all the possible bushings, holy crackerjack.

Interesting video and interesting to see your pressure/camber settings. A soft tire and stiff suspension seems kind of basackwards to me though as the tire is largely undamped. Just from experience, take a well damped car with high spring rates and through soft tires on it and it will be bouncy as hell.

I can't tell if there is actual subframe flex or if it's just the large amount of bushing flex causing it to look like subframe flex. There are definitely a couple spots where it looks like more then just bushing flex though.

Who else makes bushings for the rear other then whiteline? After they screwed everyone with the com-c's top hats I don't want to give them anymore money. They didn't even test them other then seeing if they mounted up. I can idmagine it was the same with the bushings considering how fast they got them out. I just don't trust them.

Powerflex has a whole line up of inserts and bushings @ powerflexusa dot com. Note that some products overlap (inserts and complete bushing replacement).

Edit: I think Energy Suspension also just finished their bushing package for the 86's according to their Sept. 30th Facebook entry.

Wow, tons of slop everywhere! You've convinced me to get some inserts for the rear

Ha thats not even the point of the video. Just showing what the RCE springs/Konis look like when at work.

Actually the opposite. I was having issues with the car wanting to step out on me when hitting the bumps and becoming unsettled in the rear with a softer setup.

As soon as I went to a stiffer setup the car was much more stable. Everything is just damped better. Rebound is better ect.

I don't know if its a combo of the stiffer springs all around or the shocks helping. Since I never had them on with out each other cant really say.

I felt like on the stock suspension it was borderline too stiff for that pavement there. I mean the was hopping over all the pavement irregularities. Namely closer to the big hanger. I would be running almost full soft if I did it again.

with what mod you got -2.5 camber up front?

and it has stock subframe bushing or whiteline? thanks.

Whiteline camber bolts for now. Had the same when I was on aftermarket tophats.

I run the tire so close to the spring perch to get that much camber most people would be un comfortable with it. If the bolt slipped there could be issues. I can only fit my credit card and drivers lisence in between the rim and spring perch.

That's with my 245/40 rs3s on the rpf1 17x9 +35 rims. If I had the 45s I'd be screwed.

That looks pretty normal, it'd move a lot more with the factory bushings! Looks like the hanger isn't straight up and down though, but it could be the angle of the camera.