Quote:
Originally Posted by M_a_t_t
I have a 95 Astro and after reading your story I was looking at specs on your car (stock) and we have, or had, the same wieght, transmission (4L60E), engine, almost, I have 4.3 v6 yours had a 4.3 v8 option, and same towing rating. I wanted to just be able to get 30 mpg highway. I think with our vehicles being fairly similar and you getting 43-46 mpg I should be able to hit 30 with mine, despite it being less aerodynamic. Im planning on doing aeromods though. I would like to do a manual swap but that'd be a long ways away.
Matt
|
You're right--mechanically, our vehicles are very similar.
The best highway mileage I got before the manual swap and kill switch was about 32 MPG. That's with the stock (fairly high) 2.56 ratio, a more aerodynamic body from the factory, and aero mods.
If you want 30 MPG highway in your Astro without a manual swap, you'll almost certainly need to change your gearing and do as many aero mods as you can. That might get you there...
But a manual swap and kill switch will definitely put you over 30 MPG.