Im pulling your chain mate I dont own this quad its my freinds, Myns quick for a quad offroad, Not quite upto superbike standard. Its a superquads conversion I think, Basically only standard thing about it is the Yamaha Frame, I think it uses the gearbox directly out of the R1, So its the full unit.
At 1st I think he was using the GT2860RS turbo which I believe it ran good but apparently it only spooled to like 20psi, last year he got a new turbo and then he built a kit for 4 the bike using the EVOIII 16g from a mitsu. That spooled up to like 30psi.
Ive ridden this thing a fewtimes, Unfortunetly its just to dam fast for the offroad now. Its a fight just to remain sat on the quad. I sh!t myself at about 120mph and had to slow down. But ive seen it dyno'd at well over 160mph. ill get the graphs off him to post on here. A serious bitof kit just a shame he's sunk about 10k into it that prolly cudda bin better spent elsewhere.
ill get on the blag to get him to bring it down for this. I think its in working order atmoment. Summer time approaches.