Wednesday, July 2, 2014

Toledo ProSolo...where 100% isn't enough.

It was finally time for the first big event on concrete for Bumblestook this season. All the testing, practice and prep the past few months would be put to the test at Toledo where all that grip would surface any issues around reliability and speed of the car. Practice starts went quite well on Friday. Despite going up to 315s in the rear this year, I was still able to get some wheel spin launching at redline (8600rpm) and overall Bumblestook felt strong and healthy.

Practice Start - SCCA ProSolo Round 7
Toledo, OH - 6/27/2014

Practice Start - SCCA ProSolo Round 7
Toledo, OH - 6/27/2014

Street Prepared Index A (SPA) Sat Morning Grid - Toledo ProSolo - 6/28/2014
We finally got to walk the course and I knew I'd be in trouble. I counted only 4 actual corners where I'd have to lift and it was very likely the other cars in my class wouldn't have to lift either thanks to the massive grip of the concrete surface. It was clearly going to be a power course especially with a hair pin that shuts you down a lot and where torque would be crucial. Without driving the course yet, this was just purely speculation so we'd have to see on day 1 how bad the situation would be.

Grip - Toledo ProSolo - 6/28/2014
Photo By: Perry Bennett - Autoxpix.com
Launch - Toledo ProSolo - 6/28/2014
Photo By: Perry Bennett - Autoxpix.com
Sure enough on Saturday, it drove as predicted...flat out in all but 4 corners and riding the rev limiter all over the place. With my top speed in 2nd limited to about 62mph due to gearing, it would be cake walk for the Vettes that could go well over 70mph in 2nd. Shifting to third would be an option but it really didn't help too much. To make matters worse, the grip level allowed me to three wheel the car out of a corner putting more load in the front corner than I had ever tested and the result was carnage on the driver side front fender.

Moment of impact - Toledo ProSolo - 6/27/2014
Photo By: Perry Bennett - Autoxpix.com
Fender damage - Toledo ProSolo - 6/28/2014
Quick Fix - Toledo ProSolo - 6/28/2014
#BecauseRaceCar
I was able to fix it after the morning session and was ready to give it another shot in the afternoon. Unfortunately, my luck continued to run short. On my first launch, I suddenly lost throttle and the car was just stuck idling. I managed to use the momentum to roll off the course and found that the nuts holding the throttle cable in place had vibrated loose causing the cable to come off. I remounted the bracket but lost all my afternoon runs in the process.

Throttle cable off the bracket - Toledo ProSolo - 6/28/2014
Throttle cable secured back onto bracket - Toledo ProSolo - 6/28/2014
Sunday would be my last chance to redeem myself. There was threat of rain in the horizon but luckily it just skirted around the venue and we were able to get runs in the dry. I managed to drop some significant time on both sides but simply coned away my fast right side runs. Either way, with the course laid out the way it was, even going 100% and not hitting cones still wouldn't be enough to come close to a final trophy spot. The dirty runs tumbled me down in position ending up the worst I had finished this year in 11th out of 15. To add insult to injury, my wheel had touched the fender again this time creating even bigger damage.

Final fender damage - Toledo ProSolo - 6/29/2014
Our fastest raw times - SCCA ProSolo Round 7
Toledo, OH - 6/29/2014

Despite all this, I still had a great time in Toledo. The grip is intoxicating! I verified that Bumblestook could handle the grip and felt well balanced on that surface with no changes to any settings on the car. If the course was designed to be more balanced, I think we would've had a fighting chance so I'm looking forward to the rematch in Wilmington next month where hopefully someone can design an autocross course and not a simple drag race.


No comments:

Post a Comment