STF posts

[xnamerxx]

Well its my turn to add my results to this thread. While I didn't get in the top 20 like I was hoping for I did pull a 45/138 which in San Diego isn't bad. We also had a couple of FRS show up which it was cool to see but they turned out to be much slower than I was expecting. This event was also an experiment for me, I wanted to test to see how the car performs with the front sway bar disconnected. The one thing I noticed immediately was the car had way more traction off the line, this helps because I can rev the nuts off the engine and get it moving whereas before I would flow the passenger tire away. Handling wise the car is completely different you would definitely need much stiffer springs to do this since body roll increases dramatically which also causes turn in to suffer. The car also developed a pretty bad tenancy to oversteer when lifting off and applying the brakes it was easily controllable but it kept me from keeping the car on the edge of grip. The main benefit to removing the front bar was the insane amount of grip available on corner exit, I've been so used to the inside tire spinning I wasn't trusting the car was going to have grip available when I got on it but it held on each and every time.

Here is a video of my fast time, my driving wasn't very good since I didn't have a great feel for how it was going to behave but overall I'm satisfied with the results.

http://www.sdr-scca.com/solo2/result...-7_pax-web.htm

Video of the run you can see how unsure I am with the way I'm driving. The car also seems to have lost a small bit of lateral traction which if fine since it's gained so much corner exit grip.

http://www.youtube.com/watch?v=YqAVDlZPhc8

[Jason@SportsCar]

Originally Posted by xnamerxx

This event was also an experiment for me, I wanted to test to see how the car performs with the front sway bar disconnected. The one thing I noticed immediately was the car had way more traction off the line, this helps because I can rev the nuts off the engine and get it moving whereas before I would flow the passenger tire away. Handling wise the car is completely different you would definitely need much stiffer springs to do this since body roll increases dramatically which also causes turn in to suffer. The car also developed a pretty bad tenancy to oversteer when lifting off and applying the brakes it was easily controllable but it kept me from keeping the car on the edge of grip. The main benefit to removing the front bar was the insane amount of grip available on corner exit, I've been so used to the inside tire spinning I wasn't trusting the car was going to have grip available when I got on it but it held on each and every time.

It takes a lot of spring rate, and even more rebound in your shocks to pull that off.

If your car has the 24mm front try and locate a 23mm, helps with rotation and getting power down, but its not as big of a leap as pulling the bar.

[xnamerxx]

The 22mm bar is from a 07 sedan correct?

Yeah I don't have anywhere near enough front spring to handle not having a bar, it was completely apparent the tire rubbing on the fender.

I liked the corner exit traction but trail braking felt terrible I would oversteer with to moderate brake application so it kept me from really getting on the brakes late.

[Jason@SportsCar]

Originally Posted by xnamerxx

The 22mm bar is from a 07 sedan correct?

Yeah I don't have anywhere near enough front spring to handle not having a bar, it was completely apparent the tire rubbing on the fender.

I liked the corner exit traction but trail braking felt terrible I would oversteer with to moderate brake application so it kept me from really getting on the brakes late.

Sorry, had the numbers mixed up, its a 23mm or 24mm. I can't say with any certainty what year/model came with what bar - some people have reported finding the smaller on a hatch, we did get ours off of a 2007 sedan. Warning, it is a PIA to change.

Just look for the paint dot. http://www.yarisworld.com/forums/sho...&postcount=749