
Originally Posted by
Yellowjacket
Yes, exactly.
You could shorten the pipe and get it to work at higher rpm, but if you took it off the existing tower and ran it without a pipe it would not make the 60 hp it does now at 5500 rpm. Look at the power curve. The pipe it has now is tuned for max power at about 5500 rpm. If you take that pipe off you sure a heck aren't going to make 60 hp anymore.
If you want it to run to 7000 rpm then of course with a bit shorter pipe than it has now you could likely make more than 60 hp, because you're turning it more than 25% faster so if you tuned it and it didn't blow all to hell, you could probably make 75 hp, but what I'm saying is that if you put it on the stinger tower it isn't going to be tuned properly and at 5500 rpm you won't make 60 hp.
I have a ETEC two cylinder that we're doing a different lower unit for the military and while it's a good workhorse engine, it's not a thoroughbred. It vibrates a lot and to tune it you're going to have to get in and redo all the maps. I don't know anyone who's doing that right now, but here could be someone who has access to the tools to tune it. Maybe there is someone out there, but I'm not aware of it.
If you bolt it onto the Stinger tower it won't be tuned properly. Just because it can bolt on doesn't mean it will work on that tower.
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