ws721

LOL!! Thankyou. I will do some "shade tree" adjustments. We just wont tell my brother, let him find out when we do our next loads out of northern Maine. Cummins we can tune, even the old 2 stroke joke Detroits. WE have a couple of VERY nice running Detroits. I'll try that & let ya know what happens. Thanks again. I'll have to try & get a pic of the ole girl on here.

That pressure is under load. Only runs about 750 to 800 on the pyrometer. Sounds like im closer than I thought. I would like to get more out of the ole girl. It only has 206000 original miles. Problem is my younger brother {who is bigger than me} has an Astro with a B.C. Cummins that whoops up on me. Very disheartening. Lol. These trucks only put on around 10,000 miles a year & im kinda a performance nut. I want the engine to produce what its potential is and get mpg. The MAck gets @6.1 mpg. I think that's fair for an old COE pulling dropdeck, hauling logs and chips at @95,000 gross. So yes you're advice on getting a little more power would be nice. This is my first E9. I do love that set you in seat tourque .

_{Hmm. I thought mine had low boost. It only does @17 psi. Thanks for the info. I have checked for leaks. Elimanted the puff elimantor. IT doesn't smoke under load. lol, I must have the only E9 that would pass emissions!}

I'm new to the site. I like what im reading. Anybody know what the manifold pressure for a 1983 E9 should be? This is an early E9, has the V8 ambosch pump. 400 HP.