Dave and Harold thanks for all of that input. Since I barely made it through 1 year of chemistry I was lost through most of it, but I'm sure some of the guys on here understood more than I did.
I'd like to comment on how we are using air/fuel readings with the stude. We are not using them to try and make HP. We are using them to keep the air/fuel in a range where we think the engine will more likely stay together. I've talked to very few people that have run blown gas with mechanical fuel injection and a roots blower and without an inter-cooler that have been able to run to the 5. I think we have been successful so far since we keep the motor very rich in the 9.8 to 10.5 range and we are cooling it with the unburnt fuel. I might be wrong, but that is my take on it. Sure we could make more HP if it was probably in the 12.5 to 13.0 range, but what is the point if you can't run the whole course or at least enough of it to get to speed.
I'm very confident in the LM-1 getting us an accurate enough reading for what we are trying to do and a lot of people use them along with their computer on an EFI motor to fuel the motor following the wide band output of the LM-1. I'll do that with my lakester motor eventually.
As far as the partial throttle thing. In 1st and 2nd when we see no more than 25%-30% throttle I'm not very worried about the motor being lean there. I have been concerned when he is running over 230 and has to feather the gas due to course conditions and starts running 60%-90% throttle for a period and the motor is still under a big load. If it starts getting lean then, and it has, then there again we need to think about maybe making changes.
Anyway we are still in the baby learning stages compared to your guys experience, so I appreciate all the input. Gives me something to think about and just might help us go faster.
c ya,
Sum