I haven't really done anything to the motor other that making sure that
is in tune, its a stocker. I have gone to the 2 1/2" flowmaster muffler
but have not yet installed the 3" tailpipe, that is something for next
spring. Without the toad I get about 9.8 to 10.6 mpg if I keep my foot
out it, and towing varies depending on the terrain. Flatlands, 8.5 to
8.7 and in the hills and mountains 7.2 to 7.4. I set my cruise at 64
MPH and try to run at that speed.
J.R. Wright
GMC GreatLaker
77 Eleganza II
Michigan
>
> In a message dated 12/16/1999 7:49:09 PM Central Standard Time,
>
> > several 6% grades going down 77 to Myrtle Beach I never dropped below 45
> > MPH and that was with the Tracker on the back. If your planning to tow I
> > would think that the 3.7 would be a great choice.
> >
> J.R.
>
> Thank you very much! I will be towing a Sidekick so we in the same
> ball park. Did you see any change in mileage? The guy who put in the
> 3.85 and towed said he got 2 more miles to the gallon. Then again his
> mileage was so low that I was not impressed. Have you done anything
> to let the timing advance a little farther? My theory is that if we wind them
> up a little more with less lugging we ought to be able to let the timing
> advance a little more. Any Thoughts? Thanks again for the reply.
>
> Take Care
> Arch 76 GB IL
is in tune, its a stocker. I have gone to the 2 1/2" flowmaster muffler
but have not yet installed the 3" tailpipe, that is something for next
spring. Without the toad I get about 9.8 to 10.6 mpg if I keep my foot
out it, and towing varies depending on the terrain. Flatlands, 8.5 to
8.7 and in the hills and mountains 7.2 to 7.4. I set my cruise at 64
MPH and try to run at that speed.
J.R. Wright
GMC GreatLaker
77 Eleganza II
Michigan
>
> In a message dated 12/16/1999 7:49:09 PM Central Standard Time,
>
> > several 6% grades going down 77 to Myrtle Beach I never dropped below 45
> > MPH and that was with the Tracker on the back. If your planning to tow I
> > would think that the 3.7 would be a great choice.
> >
> J.R.
>
> Thank you very much! I will be towing a Sidekick so we in the same
> ball park. Did you see any change in mileage? The guy who put in the
> 3.85 and towed said he got 2 more miles to the gallon. Then again his
> mileage was so low that I was not impressed. Have you done anything
> to let the timing advance a little farther? My theory is that if we wind them
> up a little more with less lugging we ought to be able to let the timing
> advance a little more. Any Thoughts? Thanks again for the reply.
>
> Take Care
> Arch 76 GB IL
