Your donations help keep this valuable resource free and growing. Thank you.
|
Improve Fuel Economy on 360 |
Post Reply | Page <1234> |
Author | |
73hornut
AMC Addicted Joined: Jul/03/2007 Location: Southern Oregon Status: Offline Points: 3132 |
Post Options
Thanks(0)
|
I would consider a high torque cam, a small 4bbl, about 350 rear gear, and an OD trans.
|
|
71 Javelin
74 Gremlin 79 Spirit AMX Rogue Valley Rumblers Like Us on FB https://www.facebook.com/groups/1602825606650796 |
|
gtoman_us
Moderator Group Joined: Jul/10/2007 Location: E. Nebraska Status: Offline Points: 3859 |
Post Options
Thanks(0)
|
Great discussion. All I know after 4 years of engineering college with calc, thermo, stats, ect. a good old fashion vacuum gauge and timing light with Petronius point replacement I keep my 65 GTO with 10:75 compression and tri power carb setup ping free. As stated earlier it takes an incremental approach to keep it street-able with today's fuel and I do have to fuss with it a couple of times a summer. I am not concerned about mileage but pre detonation even with forged pistons
I used to chart and journal what I was doing to create a base line but the fuel is so laced with ethanol over the last 4 years that the base line was invalid because I could not return to it. Cripes now I wonder what I did with the little note book? My Pontiac owners manual requires 100 octane premium. Edited by gtoman_us - Nov/24/2012 at 9:14am |
|
Moderator - Emeritus
Used to collect trophies, now I collect gas receipts and put on miles 1964 Rambler Ambassador Cross Country Wagon 1965 GTO 1931 Model A original survivor "Flat Roofs are Cool" |
|
scott
AMC Addicted Joined: Jul/10/2007 Location: Wildwood Pa. Status: Offline Points: 3498 |
Post Options
Thanks(1)
|
I'm suprised no one suggested adding a valley oil line........
|
|
amxdreamer
AMC Addicted Joined: Jul/30/2008 Location: Vancouver, BC Status: Offline Points: 8494 |
Post Options
Thanks(0)
|
lol
|
|
Tony
Vancouver, BC 1970 AMX 1972 Badassador AMO#10333 |
|
dbomb
AMC Addicted Joined: Jul/22/2012 Location: new jersey Status: Offline Points: 705 |
Post Options
Thanks(0)
|
what does that have to do with MPG? ohh youre making a joke i get it now lol
|
|
rebuiling 73 amx need parts
|
|
dbomb
AMC Addicted Joined: Jul/22/2012 Location: new jersey Status: Offline Points: 705 |
Post Options
Thanks(0)
|
SCTVGUY1 before go getting into rod length ratios and combustion dwell and hemispherical vs wedge head desisn and burn characteristics or the ability to convert into brown gas burning you might just wnna look into a simple water injection system . JC Whitney and Sears and others used to sell alot of them and i can tell you that i installed more than a few of them at the Jeep dealership on grand wagonners and big jeeps in the past . If you just google water injection for cars it will tell ya all about it. Maybe im an old fart at 46 but i used to work on cars with carbs and points as well as todays newer injected supercharged or turbo aspirated vehicles. Keep it simple as your car is simple . You dont need one of those $400 dollar kits either $50 old style kits just had a water bag and a vacuum T to plug into ported vacuum[port above throttle plate] and would use vacuum to draw in water or widshield washer solvent. We did ALOT of these in the past and could run @16 degrees advance without problems on stock motors and the extra lead timing really woke up the motor and made more efficient. Supposed to be a new spark plug design coming out tht I heard is gonna be relevant as well not just Splitfyre hype.
|
|
rebuiling 73 amx need parts
|
|
purple72Gremlin
AMC Addicted Charter Member Joined: Jul/01/2007 Location: Illinois Status: Offline Points: 16591 |
Post Options
Thanks(0)
|
Also, stock specs are just a baseline. when an engine has miles on it, the engines requirements changes, (For example, the timing chain will stretch and retard the timing, once it does that then stock specs go out the window)...............So, you have to advance the timing..............
|
|
Charles Smiley
AMC Apprentice Joined: Oct/26/2011 Location: CA Status: Offline Points: 205 |
Post Options
Thanks(0)
|
With such low mileage on a car that old it begs the question... How much would you really save on total fuel cost anyhow? Whatever you spend has to have a payoff point in the near future to justify the costs.
With the crappy "green" fuel they have here in the People's Republic of Kalifornia, I've had to increase the jetting on my 401 just to keep it from pinging. And I already have done a lot to make it more efficient, electronic ignition, headers, carb, intake, cam selection etc...
|
|
bigbad69
Supporter of TheAMCForum Joined: Jul/02/2007 Location: Ottawa, Ont. Status: Offline Points: 6609 |
Post Options
Thanks(0)
|
|
|
69 Javelin SST BBO 390 T10
|
|
bigbad69
Supporter of TheAMCForum Joined: Jul/02/2007 Location: Ottawa, Ont. Status: Offline Points: 6609 |
Post Options
Thanks(0)
|
|
|
69 Javelin SST BBO 390 T10
|
|
Post Reply | Page <1234> |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |