all of which when they fail....bye bye motor, so the right thing to do , so you window the block and loose the whole motor is pretty much maintenance... right....fixing the known problems early... saves the motor,..right???
add to the fact that the manifold on the 500 hp leans out the corners ...#2 & #7... but in response to your post... that's the problem with home grown fuel injection..no wat to get a platform to start with,... merc fuel injection is set up on a dyno that monitors each cylinder...they
still working on getting the 210 figured out...lol.. but here's one thing that I've noticed...why is it that there is always some fat ass holding a little baby that is a twig...why don't they give some of the over eating to the kid???So are we onto solving world hunger yet 2FF?
does their hallett have a roll bar???
so what would it cost to have this done???The lean problem on 7 and 2 (opposite corners, the longest ends from the carb) come from lack of fuel, not excess air. This is solved by port injection, even if it is "home grown", even if the manifold is the same. Fuel is heavy compared to air, it travels from the carb and starts to wet the surfaces, this fuel film builds and makes is way to the path of least resistance (all the cylinders that it has the easiest path to flow to).
There may be some air flow difference on those longer runs to 2 and 7, but it's very minuscule in comparison to the fuel film issue caused by dumping all of the fuel into the center with a carb.
You don't need to worry about reading 8 individual o2 sensors on a motor as mild as a 500hp, even with home grown efi. bank to bank is more than enough (and even that is just for a sanity check). If you have to trim fuel cylinder to cylinder on a motor like that you have bigger issues at hand, mechanical ones.
Case in point, MEFI 4 computers that ran on everything from 502 mpi's, 525hp, all the way through to their high hp super charged motors only had 2 channels of fuel, 4 injectors all fired the same duration, at the same time, then the other 4 fire. No fuel timing, no difference in pulse duration to account for cylinder to cylinder trims.
Most home grown efi problems start with the fact that people think they can just order a system that's advertised in one of the back pages of a comic book, they hear all these cool terms like "Auto tuning" "self learning" etc. And see a cheap price.
You get what you pay for.
there was one yesterday at boulder harbor, it was a 270 with a big blue roll bar... I figured he was from boulder citynot unless you consider a bimini a roll bar
Lol, no, it's mostly yellow, mid cabin, might have some purple in it?
we had an exchange of not so good words...it got pretty harry at the dock, one guy laid out ,... and me, who didn't nothing, on the way to jail... amber lamps..5 rangers and such...
I know you said possibly and I'm not knocking you but why you say the Gil exhaust? I thought they were and still are one of the best performing cast aluminum manifolds out there.
I actually laughed out loud
I ve always thought, or what I've found with the 502's I tore down, it was the out of round cylinders ... that's why I would rather have a seasoned 502 with a quality re-bore , than a stock one..
sounds about right, I helped him get his boat of the trailer, then was holding his boat so the people with him could get on...then he start chewing me out say'n what I did was un called for and that "HE" seen me knock the guy out....
