Is it safe, for road riding, to run stage 2 sc gears with no ic? I'm doing tt3 exhaust, sprint filter and Pcr flash. Toying with the idea of adding gears as I'm a big fella and need more power to move me
Not sure if that means you already rode the bike reflashed? If not I'd ride the bike reflashed before then also adding SC gears. You might find it's a handful.
If I was only doing just mile events where temps don't rise like long blasts on the street I'd consider it or even if it was a circuit track bike where after each 20min session I could stop and let the bike cool down. I'd definitely go w/ an intercooler, fuel pump & proper tune though. But I put on a lot of road miles and many of those are in summer temps. & long blasts at high mph. Right now my bike runs nice & cool.
There's a long history of doing reflashes with higher rev limits, currently own 2 bikes & 1 sports car with higher than factory rev limits. You couldn't count how many reflashes have been done reliably over the years this way & the H2 is better built for it than probably any other motor but H2 SC gears are more experimental.
Besides the fact I actually can & do use more peak horsepower you get w/ 1k more rpms on high mph straights especially in the higher gears but adding more power down lower just means even more finesse w/ the throttle on turns, its already a beast. It's not like I've mastered putting down 250rwhp w/ the bike leaned over, very few in the world have so don't a need for more performance in the lower revs, even on the straights where you can put the power down w/ Stage II the front comes up till 5th gear if you snap the throttle.
The results & tech look promising but beside inlet temps without an intercooler theres also the non OEM fitment issue that I'm going to wait to be resolved. I just can't have that in my mind while riding that the lower gear could be backing out, honestly it would drive me mad. For me it's not worth the risk, others differ, that's ok, I respect the opinions & moves of some people running gears & give them props for pushing boundaries but for now because of the way I use my H2, mostly hard street riding, couple of track days & because we don't have any long term usage of gears on the H2, I'm following Brocks lead on it. Just my honest & humble opinion.