I'm not sure but I'm guessing Dan is talking about he Sprint Booster.
http://forums.viperclub.org/threads......Sort-Of?highlight=sprint+booster+trackaire
I've done a review of it. It does NOT get rid of the drive by wire throttle lag/dead spot, but it does make it feel less noticeable since the booster just makes your TPS more responsive by giving your 100% throttle with 75% throttle input. The advantage is that it has three settings, off, mild and aggressive. On the race track, it doesn't really seem to matter as much since your are always on the throttle past the dead spot. If on the most aggressive setting, a bumpy track can move your foot enough to cause unwanted throttle inputs which, on a high horsepower car can cause issues with too much throttle and spinning the rear tires in a longer corner. I like the mild or aggressive setting for street use.
I do like the IPSCO gas pedal extender for street use. It makes heel toe downshifting better for me. But once on the track and under track braking conditions, I notice that I tend to over blip the throttle since the brake pedal is that much further down when stepping on the brake pedal at track speeds. I would be going bonkers speed on the street to try and replicate the amount of brake pedal force that I use on the track. Since it is a 5 minute install, it is very easy to swap the gas pedal extender for street or track use.
With a Gen 4, I would probably do engine mods last and start with gearing (I have 3.55's) and a modified transmission that has lowered 5th and 6th gears. I love this mod the most. A lot of Gen 4's can do a compete track lap in 3rd gear since the car has enough power and rpms to do this. But, when caught in traffic, it is much nicer to have the gearing options to pass other relatively fast cars (like a 440 hp mustang) by having the best ratio that puts you in your powerband very quickly. The stock rear end just doesn't allow the higher revving (and lower torque) Gen 4 motor to really pull until it's over 4800 rpm. My current setup allows 70 mph @ 2000 rpm in 6th gear. The car just pulls and pulls with this combination.
I also have a lightweight BBG clutch upgrade that allows the for faster revs and much better shifting over the stock system.
George
