MPG experiment....1976 Dart Lite
Typical Friday AM fillup. Same station, same pump.
MPG down to 17.28
This 2 week trip had more stop and go on highway, and then other days of highway at 60 MPH when I usually try to limit to 55 mph. This was first full tank with full fluid in tranmission and differential. I expected to see it better.
It is due for an oil change, and I might check out the plugs to see how they look.
Next major modification will be exhaust. It currently has a decent size pipe coming off the collector, that Y's off where the catalytic converter would be, and through dual 12" glasspacks, and out the back. It is probably 2-2.25 piping, and it is very pinched over axle, where it looks like the axle tube might have hit it at some point. The passenger side leaf spring is very weak ( I am running the coil over springs on the shocks) and the upper mount was tearing through the metal when I got it, so it validates the idea that it was overloaded at some point. It bangs and clangs, coathangered by PO, overall bad deal. It probably flows OK, but I am tired of the clanging.
I am having a local shop that mandrel bends do a system with a Magnaflow, out the back, driver side, SINGLE. I am torn between 2.5 or 3". I realize it is a bit overkill on a 1 bbl slant 6, but they can only bend 2.5 or 3".
--If I go 2.5 I can get the muffler and tip at n/c (vendor rep
)
--If I want 3" I have to buy the muffler and tip, or I can have it turned down and semi hidden behind bumper. The system will be 2-2.5 off the the manifold to a flange and stepped up to the 2.5 or 3 around the transmision, so I can pull it off while fabricating turbo stuff, and re-install to drive.
I realize it is not the ideal change for order, since the existing exhaust is adequate flow wise, but this will be the last large expense I will be able to run on the Dart, since the twins are due in 5-6 weeks. I have a feeling all large purchases will be on hold. Little stuff might work, but the diapers and formula are going to kill me. I better get the exhaust run while I can....
Typical Friday AM fillup. Same station, same pump.
MPG down to 17.28
This 2 week trip had more stop and go on highway, and then other days of highway at 60 MPH when I usually try to limit to 55 mph. This was first full tank with full fluid in tranmission and differential. I expected to see it better.
It is due for an oil change, and I might check out the plugs to see how they look.
Next major modification will be exhaust. It currently has a decent size pipe coming off the collector, that Y's off where the catalytic converter would be, and through dual 12" glasspacks, and out the back. It is probably 2-2.25 piping, and it is very pinched over axle, where it looks like the axle tube might have hit it at some point. The passenger side leaf spring is very weak ( I am running the coil over springs on the shocks) and the upper mount was tearing through the metal when I got it, so it validates the idea that it was overloaded at some point. It bangs and clangs, coathangered by PO, overall bad deal. It probably flows OK, but I am tired of the clanging.
I am having a local shop that mandrel bends do a system with a Magnaflow, out the back, driver side, SINGLE. I am torn between 2.5 or 3". I realize it is a bit overkill on a 1 bbl slant 6, but they can only bend 2.5 or 3".
--If I go 2.5 I can get the muffler and tip at n/c (vendor rep
) --If I want 3" I have to buy the muffler and tip, or I can have it turned down and semi hidden behind bumper. The system will be 2-2.5 off the the manifold to a flange and stepped up to the 2.5 or 3 around the transmision, so I can pull it off while fabricating turbo stuff, and re-install to drive.
I realize it is not the ideal change for order, since the existing exhaust is adequate flow wise, but this will be the last large expense I will be able to run on the Dart, since the twins are due in 5-6 weeks. I have a feeling all large purchases will be on hold. Little stuff might work, but the diapers and formula are going to kill me. I better get the exhaust run while I can....