emmissions 402, and cam choice
emmissions 402, and cam choice I have a 402, 59cc ffhp stage 2 ls6 style ls6 castings, lT's cats very free flowing exhaust Ls6 inlet, TB & MAF and a need to pass these emmissions here in the UK
Fast idle 2500-3000rpm
CO no more than 0.3%
HC no more than 200 parts per million
Lambda between 0.97 and 1.03
Normal idle 450-1500rpm
CO no more than 0.5%
I am looking for solid midrange, good road manners, no quarters, occasional track days, but mainly road use. I don't want to spin the motor hard to gain every last HP! compression ratio is likely 10.9 or 11.3 depending on gasket. this is going in my shelby cobra replica, t56, 3.23 rears, 1800 lb
Where should I start with cam choice, I need some experienced comments from people that have tuned for emmissions on this type of motor. I am not interested in max dyno numbers.... but want what will really work on the road
thanks for any help
steve
Fast idle 2500-3000rpm
CO no more than 0.3%
HC no more than 200 parts per million
Lambda between 0.97 and 1.03
Normal idle 450-1500rpm
CO no more than 0.5%
I am looking for solid midrange, good road manners, no quarters, occasional track days, but mainly road use. I don't want to spin the motor hard to gain every last HP! compression ratio is likely 10.9 or 11.3 depending on gasket. this is going in my shelby cobra replica, t56, 3.23 rears, 1800 lb
Where should I start with cam choice, I need some experienced comments from people that have tuned for emmissions on this type of motor. I am not interested in max dyno numbers.... but want what will really work on the road
thanks for any help
steve
