Ever since adding the 0.375" wall tube centerpiece to my front MuscleBar last summer, Barney has had a
slightly loose on corner exit symptom because the front to rear lateral load distribution was out of kilter. This trait was amplified when I added 125 ft lbs and 100 hp under the hood over the winter. I have to be super gentle on the throttle on corner exit to keep the rear of the car under me. I now have 2 autocross events and over 100 road course laps at 2 separate tracks under my belt with the new setup and while we tried some band-aids with shock adjustments to help with this condition to get me by (and were somewhat successful), it is very apparent that I need to finally heed Doctor Ron's advice and make another suspension change to cure these ills. He's been after me for a while to make this change and I was hesitant because I didn't want to hurt the on street ride of the car. I have put almost 2,000 miles on the car so far this year...it gets driven... I finally gave in though and ordered the parts a couple of weeks ago. I have spun the car around on course more times in the past 6 months than ever before and in order to continue to get faster, this has to stop.
Enter the cure... Old rear spring on the left, new rear spring on the right. We'll call this Stage 4...
Initial street test drive shows positive improvement, before on a long fast on\off ramp turn...a slight touch of the throttle made the car loose, now I can increase throttle more and it will eventually make the car a bit tight but still very manageable. My parking lot autocross turn test facility had a similar positive result.
The best part is, ride quality really wasn't affected that much. Under normal circumstances it's hard to tell the difference. The only place I really noticed a change was the 1" bump up into the garage that was pretty stiff. Nothing at all that can't be dealt with on a street car, especially if it cures the handling issues.
I am registered for a local SCCA autocross this coming Sunday and I can't wait to try the new setup out at speed on course.
I also acquired these while in Indiana last week.
The stack on the left are leftover 275 Falkens from last year and the stack on the right are some gently used 255 Rival Ss. I begged them off of the Pichettes and the DragonLady GTA so I could see what dropping down in size but up to a Rival did to the car before laying down the cash for a brand new set of smaller Rivals. I'm not sure if I'll mount them up before this Sunday or wait a bit before mounting them up. I'm milking my way through tires for this year and have several more events left in the set of Falkens currently on the car. Not enough to warrant a dismount, then mount up again later though.
Stay tuned, I'll be sure to update with results after the event. I love trying new stuff, especially if I think it'll be much better and I'm pretty sure this will be a huge positive change for the car.