Should have read more carefully. What HP is your 8.3? It’s fairly easy to increase with a different fuel plate... I regrouped my own. I’d say 12 psi on level ground accelerating sounds normal to me. At the same rpm climbing a hill you should see a little higher psi... more HP needed. Mechanical pumps are going to puff a little black smoke when you get on it.
My electronic injection ISL will only puff a little when I’m above 6-7000’ if I do not ease into it from a stop for some reason. The rest of the time there is no smoke.
My electronic injection ISL will only puff a little when I’m above 6-7000’ if I do not ease into it from a stop for some reason. The rest of the time there is no smoke.
Having had that vintage 8.3 in a Fl 70 I would say your 20-22 is about right at max acceleration.
These two statements are confusing..."And reasonably low boost at cruising speed no uphill grades" and "at the lower rpms as it doesn't show any boost while cruising on flat ground at approx 1100 rpm."
Does it show some boost or not??? 1100 rpms is probably 40 MPH...not much power needed.
At low power you will not see much boost and some black smoke as you get on it until the turbo spools up. Can't tell how long you've owned, but have you been happy with the power and MPG???
Sometimes too much info is not good.
These two statements are confusing..."And reasonably low boost at cruising speed no uphill grades" and "at the lower rpms as it doesn't show any boost while cruising on flat ground at approx 1100 rpm."
Does it show some boost or not??? 1100 rpms is probably 40 MPH...not much power needed.
At low power you will not see much boost and some black smoke as you get on it until the turbo spools up. Can't tell how long you've owned, but have you been happy with the power and MPG???
Sometimes too much info is not good.
