Originally Posted by
Marcus Falconie
On a big track 7 to 8 min is all you will get out of a 7port Sirio when racing. If the motor is running good dont mess with it, with the Big cooling head on the STI if you lean it you will hurt the bearing. That motor should start a tad rich at first and a lap or 2 into warm up should be great. I ran Werks 7ports and this is a good run time 7 or 8 min. If you want more time try a mod Werks 3 port or Orion ABI, Novarossi +4, or V-Spec with a 6mm restrictor
X2
i own a +4 and a vspec, havent really broken the +4 in but my vspec i run 7mm res and i can get 8 min and still have 1/4 tank left, and marcus races with me, out track is huge