
SpeedSF Blog
Every Build Has a Story – Meet the Cars of SpeedSF

SPEEDSF CHALLENGE - MAY 31, 2019 - ROUND 5 @ THUNDERHILL RACEWAY 5-MILE!
With class-setting lap times thrown down for Groups S1-S4 + Group X, it’ll be interesting to see what August 30th’s 5-mile Challenge will result in. S5 is certainly ripe for the pickings, as the 2014 class record set by Eric Lin in July 2014 stands at a 03:55.190. Someone PLEASE break that record!







SpeedSF Beginner Group - How It Works:
We want you to come back and have a great time, so don’t be afraid to ask questions! We are here to help! Nobody knows everything, and some people who have been doing this for 10+ years are still learning new things every time they come out, so be curious!


FEDERAL TIRES SPEEDSF CHALLENGE @ WEATHERTECH RACEWAY LAGUNA SECA - SEPTEMBER 2, 2018 - ROUND 10
Round 10 of the Federal Tires SpeedSF Challenge was one of the best in recent memory, not only with a McLaren Senna entering the competition, but there were 5 entries in Group X with 2 being McLarens, a 720 and Senna. A total of 29 entries across all the groups joined the competition, ready to put down their best lap times.

FEDERAL TIRES SPEEDSF CHALLENGE @ SONOMA RACEWAY - AUGUST 20, 2018 - ROUND 9
Our 1st place winner, none other than the Dirty Mango Gary Yeung, put down a 1:48.420 NEARLY beating his previous class-best time of 1:48.399. Hey Gary, save some records for the rest of us, yeah?


Federal Tires - A Review from Joe "McQuicken" McGuigan
"The Federal RS-RR is without a doubt, one the best "bang-for-the-buck" track tires. With grip consistency throughout a 20-min. session of hot-lapping, these tires will help beginners and experienced drivers alike by allowing experimentation throughout the session without grip loss.”


Federal Tires - A Review from SpeedSF Instructor and Racing Driver Michael Ostby
Federal Tires' performance are motorsports-proven, and so we asked our SpeedSF instructor, resident racecar driver, and an all-around good guy Michael Ostby, to give us his feedback/review of the Federal 595RS-RR.

FEDERAL TIRES SPEEDSF CHALLENGE @ SONOMA RACEWAY - MAY 27, 2018 - ROUND 5
Back at it again here in Wine Country. The SpeedSF Challenge barrels into Sonoma Raceway with an epic 40+ cars on our lineup sheet. Today's event served as a healthy reminder for drivers to PLEASE SIGN UP PROPERLY so that you are entered into the event according to your proper class. We want you to be a part of the fun, so please fill out the paperwork accordingly.

FEDERAL TIRES SPEEDSF CHALLENGE @ WEATHERTECH RACEWAY LAGUNA SECA - JUNE 17, 2018 - ROUND 6
Welcome to Maz--- WeatherTech Raceway Laguna Seca! Our first SpeedSF Challenge held here since the official name change. We're still trying to rewire our brains saying the new name, right that right Joe McG?

FEDERAL TIRES SPEEDSF CHALLENGE @ THUNDERHILL RACEWAY WEST - APRIL 29, 2018 - ROUND 4
The SpeedSF train rolled into Willows, CA once again for another two-day event weekend at Thunderhill Raceway. As cars flowed into the city and the symphony of exhaust notes filled the air, participants in the SpeedSF Challenge were anxiously looking forward to moving up the leaderboard and seeing what they could come away with this time.

