I like to hear all of the different opinions and this is why this is such a great forum.
Here are my experiences on my Whippled GT: I didn't run into many of the temp issues that were discussed in an earlier post. When it was tuned, it was over 95 degrees in the shade (where the dyno was). We did about 12 dyno runs to dial it in which took 2-3 hours to finalize and never saw less than 10-15 rwhp differences between runs which is pretty standard for most cars (granted I think mine was a GEN I whipple and I made about 100 more rwhp than with an exhaust, pulley, and tune using the stock supercharger). I wonder if there was other issues going on with the other cars that exhibited heat issues (perhaps water pump or intercooler related...). I also didn't have that much of traction issues. Granted I live in CA where it's warmer, but would drive it at night and in the morning too. Never had any traction issues in 2nd and if I rolled into it in 1st things were fairly well planted as well. I remember at the Rally in So Cal, I did a number of high speed runs with other GTs using stock supercharger and other ones with pulleys/exhaust/etc... and there was a big difference in power on the street after a dozen or so app 40-120 runs as I would pull on them quickly.
Now, truthfully, I installed the Whipple before there were TT kits available. If top speed and max power, or road racing were my goals, I would be heading to 'TT land' in a heartbeat. My car spends most of it's time in the 3000-5000rpm range with some 5500-6500 romps every now and then. In the 3000-5000rpm range it's a no contest as the superchargers will clearly deliver more power/torque in that range.
If the intake temps for the SC + TT kit are only 14 degrees higher, that's not a huge difference and may be why so many people enjoy the combo kit. For racing, it may not be the best choice but for street driving, it gives you the most robust power range of either of them without one another....
I guess I will stay with the set up I have. I love it! I think I might be getting a little dentonation when roll on the gas from a roll. I think I need to keep the rpms up then roll on the throttle. But, I am a mile high so we can cheat a little no O2 up here
