https://www.youtube.com/watch?v=rT-GqpbOKu8

The Formula Firebird is basically a race car, completely gutted with suspension, brakes, tires, power mods, and he's on R888's in 295/315.

The Boss is relatively stock with some suspension mods but has Pirelli PZero Slicks on it. Enjoy the video

Another solid video showing folks that the Boss is no slouch , though will have to give some credit to the Pirelli slicks , they are killer on the Boss. Assuming you were getting them used from GT Racing or someone else as World Challenge Series take offs?

I stopped getting them from GT Racing because the quality was so inconsistent. I don't remember the gentleman's full name but it was John something and he would usually get me a set with one or two heat cycles for the same price, basically brand new. The Pirellis were my favorite and I will miss being able to run a square stance that I could rotate on the Boss. It doesn't look like you will be able to rotate on the GT350 without a very large spacer or adapter plate. I'm okay with a spacer but I have seen adapter plates fail before and I'm not going that route. The GT350 because the of improved suspension geometry doesn't eat front tires like the Boss did.

I'm using a 1" spacer and rotating my 305 square setup with no issues.

After talking to Edgar ( Need4speed) and VoodooBoss I am pretty confident in going with the square set up. Never had any issue running square with the Boss ( needed a spacer then also ), but then I always check my equipment frequently. Appreciate the note , and if you remember who you were getting the Pirellis from drop me a note , please.

[email protected]

Bill Pemberton said:

After talking to Edgar ( Need4speed) and VoodooBoss I am pretty confident in going with the square set up. Never had any issue running square with the Boss ( needed a spacer then also ), but then I always check my equipment frequently. Appreciate the note , and if you remember who you were getting the Pirellis from drop me a note , please.

[email protected]

Click to expand...

Are take off 19" slicks available?

Crap , better check , my brain is still stuck on running 18s on the Boss , so wasn't thinking about 19s - and pretty sure they don't have anyone running those in World Challenge?!

Tire selection is definitely a lot more limited with the GT 350 , so hope to hear more and more from folks on this site about tires that are working well. Have not been fond of R888s , but there are now some new R888Rs , and have not chatted with anyone using them , but have a feeling we are going to be somewhat limited tire wise for awhile. Hopefully the trend to larger rubber ( Camaro on 20s for instance) will get some of the Manufacturers to put out a few more sizes for us. Most of us would kill for Hoosier to put out a 305/19!!