A 5 speed tC on our S1 kit at 8 PSI
Impressive.
What is the popping sound in the background?
[quote=“psphinx81,post:3,topic:25999"”]
how do those motors take to boost?
[/quote]
Excellent! 
VERY responsive.
[quote=“Carnut,post:4,topic:25999"”]
What is the popping sound in the background?
[/quote]
Not sure what the noise is, as the driver did the vid on his own. 