What's the ideal turbo for the 430 diesel yanmar? What do you mean when you say low and left on the map?Cory, check the trim spec between the two - that'll tell you if they're the same as far as flow characteristics go i.e. where they sit on the map. They can still vary in terms of extra flange pieces etc go for the specific OEM application. That said, you don't have to hit a specific spec if you don't feel the need. For example, mine is low and left on the map in my application but I'm ok with that - this was more of a hobby exercise as opposed to "needing" to meet a specific spec (my wife and I don't seem to agree often on the difference between "need" and "want" as far as lawn mowers go : )
I can't answer the first question but for the second, it's low on the pressure ratio (i.e. how much it compresses the intake air) and it's low on flow (cubic feet per minute of air that it's pumping). So it's likely not on the "ideal" efficiency island but it's just a toy so I'm not really concerned : ) I only installed it for grins, and given that I did not increase the fuel rate, it's not really doing much, but I do like that it's made the engine a little quieter and it gives it a bit more oomph (subjectively) than it used to have, mainly on torque/lugging. It will lug down to the torque peak with no smoke and it will hold there quite well, comparatively speaking. But really, only an A/B test on the dyno would tell for sure. Maybe one day when I really can't think of anything else to do : )What's the ideal turbo for the 430 diesel yanmar? What do you mean when you say low and left on the map?