As promised, I am giving my complete (take it as it comes, semi-pro Crossfire racer) opinion of the Sprint Booster after my events this weekend.

Bare in mind I was running a fairly technical road course called ButtonWillow Raceway in the #13 counter clockwise configuration and I was using some seriously crazy fuel mixtures of Sunoco 100 mixed with 20% Proylene Oxide. The ambient temps. were down in the 60's and the track is at 2106 ft above sea level.

As mentioned in my previous post, I had very little testing time with the car after I installed the SB, just a local canyon road in the middle of the night to see if the thing worked at all... I must say, this definitely lets you put the "pedal to the metal" very quickly.

This works perfectly for the sections of the track where you want quicker acceleration, eg. coming out of a turn into a straight away. I noticed a huge difference with my exits from the turns, with a slight press on the pedal, it jumped to full throttle and I was haulin'. I give it an (A+) on this.

The track has a couple of long "SWEEPER" turns that require very precise throttle manipulation (feathering) to maintain optimum speed and traction. When I attempted to feather the throttle, I often ended-up "GOOSING" it, then the rear-end would start to break loose and I would have to back off the throttle. As far as precise throttle control, I give the SB a (C-).

By the end of the weekend (6 races later) I often found myself producing these little "POPS" of acceleration when I was trying to feather the throttle through a turn.

Overall, the Sprint Booster is definitely a valuable modification for fast acceleration, but school is still out on whether the driver can develop the skill / touch to learn how to feather the throttle with this installed...

Then again, I was running some crazy fuel that made my car think it was an NHRA dragster...