Most of the time you never will when it's doing the real damage at higher rpm.You don’t need to hear detonation for it to do damage
Most of the time you never will when it's doing the real damage at higher rpm.You don’t need to hear detonation for it to do damage
Also......and I'm just spitballin here now. I wonder if you could attach the vacuum advance (if you have one) to manifold vacuum. That would in effect act as a boost retard. The more load the engine would see, the more it would reduce the vacuum signal to the advance can and retard the timing.
I am running a FiTech EFI dual 4 setup and control the fuel with it. At idle my afr is 14 to 1. At cruise not under boost I go to 13 to 1. When under boost it is 11 to 1. This is a pretty rich setup that helps to cool everything down. I also run my temps at 156 degrees. The only time it goes higher is in hot weather in city type traffic and then it might push 180 degrees.This post actually got my head out of my arse and remember that with boost he may want to look into a boost referenced fuel pressure regulator.
That way as boost goes up it will add fuel pressure to help keep the fuel curve correct.
So a timing curve, boost retard on the ignition and a boost referenced regulator would make his tune up window much bigger.
I have a Champion 3 core aluminum radiator. I believe the width and height are the same as a stock 340 radiator. I have a very narrow flex fan and no shroud, no room for a shroud. My fan is only about 3/4 of an inch from the radiator. Close, but not touching. I ran an electric fan system at first but it didn't work as good as this setup and drew lots of power. I am real happy with it now but it took some custom fabbing of spacers to make work.Hey Jack.What radiator,fan,shroud combo are you running.Those temps sound like its workin for ya.Wide or narrow radiator.
Took it for a shakedown run of a few miles today. All seems well. I'll know more after a few more miles. Who knows with the Fitech. I will be calling them tomorrow as it was still under warranty.Dodged a bullet! Glad all went well. Next 500 miles will finish the story.No idea what caused the Fitech to croak?
Well that's good. Now we'll get to see what kind of integrity they have. Keep us posted.Took it for a shakedown run of a few miles today. All seems well. I'll know more after a few more miles. Who knows with the Fitech. I will be calling them tomorrow as it was still under warranty.
Jack