The Stovebolt Site Forums The Shop Area Engine Shop Long Lost Fuel mileage post..??

Well.. I admit it,.. I'm a [censored].
Hope some of you can help me out - HOPE I am even in the right place. I got two or three boards I am watching so not sure the post I saw was even on this board. Hate to admit that because people may just blow this off,.. but I have to be honest.

SO here goes.... Does anyone remember a post a month or so back that dealt with modification, parts, etc that you made to a motor to increase gas mileage...??????
I am buying an old motor (305, 327, 350) something of the sort. It's going to go in an old truck that will be an everyday driver. Needless to say I want to get as GOOD a gas mileage as possible.
Someone posted different modification (parts, etc) you could use on your motor to help with better gas mileage. I've looked everywhere and I can't find it. Done a search also. Sorry to be a bother,.. but since I am doing a complete rebuild on (whatever) motor I get,.. I want to try and make the motor perform as good as possible. Wanted to know what all the modifications were in advance, so when I took my motor to my motor man I would know what all to tell him to do 'extra'.
Thanks in advance

OH...
Feel free to offer suggestion If the post wasn't from this board...
I would prefer you NOT offer using a EFI engine.
Current plans are to use a motor OLD enough that it has points, etc... (something I can work on myself if it needs repairs)... Avoiding auto repair shops... just too much for their charges when I can do simple stuff.
Also I am going to use a tranny with a manual over drive. That cuts out some of this 'computerized' stuff also.
Trying to eliminate all that I can,.. and make it so I can do as much work on it down the road I can.

I dont remember anything about modified internals that would require the builder to do to get good fuel milage,other than not using a big cam or high compression. Just a good rebuild,stock internals,vacume secondarys,over drive,a descently high rear end(3.08,3.42)and easy on the throttle,should be 15 or more mpg.

One thing you can do that would make your life easier and might improve your mileage, is to use HEI and PCV valve rather than points and road draft tube.

After that, match the cam, stock compression, 4bbl with small primaries and larger secondaries (or mechanical fuel injection if you don't like EFI), heads, for fuel efficiency rather than performance, add an overdrive tranny, highway gears in the rear diff...

Most importantly, a light foot.

If it was me, I'd go with a 350. I agree with MN51 in that an HEI (or Pertronix Ignitor) really DOES make life easier. And a PCV valve is a good idea. Much cleaner than a road draft tube.

I also agree about using a carb with small primary venturis (Edelbrock, Carter or even Quadrajet.) If you can keep yer foot outta the carb, you'll get pretty much the same mileage as you would if you were running a 2-barrel carb and still have some power on tap if you need it.

As a general rule, when people consider swapping a V8 into something (car, truck, hot rod...whatever) economy generally isn't the primary concern. Performance is. That's probably why you haven't been able to find much on it. But economy comes from a lot more than the way the motor's configured. As MM51 sez, tall gearing like 3.08 or an overdrive transmission coupled with a light foot on the throttle will provide the best possible mileage (as another general rule) with any motor combination.

As far as which motor you use (305, 327 or 350) you'll probably get about the same mileage. I suggested the 350 because they're more common and easily obtainable than 327s and have a much greater performance potential than a 305. I know a lotta guys who put 305s into street machines and they're ok with them if they just want a V8 that is more of a cruiser or transportation vehicle...but if they want to increase performance, most of them will go with a 350 (or 400 smallblock) eventually.

If you really wanna go small, you could try to find a 267 V8 from a late 70s/early 80s GM product and run it...but I don't believe that it would increase mileage all that much...but it sure would limit performance. Like real slow.

Those are just some ideas off the top of my head. Good luck with whatever you choose.

1987? and up engines have roller lifters which will increase gas mileage.my 89 305 camaro/700r4 gets 24 mpg on the highway.use a quadrajet four barrel carb if not fuel injection.

I think that this is what you are looking for
http:www.mpgresearch.com [cut and past]

MUCH INTERESTING STUFF

The website you suggested is an interesting one Here's the url: http://www.mpgresearch.com/index.php

I read a lot of the posts and a goodly number of them stated something like, "yeah, the government and oil companies have known about the supercarburetors for years...etc."

Most of the rest of them were devoted to catalytic cracking of gasoline or crankcase vapors prior to combustion or water injection to supplement the air/fuel mixture either in the carburetor or intake manifold.

My most recent personal experience with this comes from a "gentleman" (I use the term loosely) in my neighborhood named Paul Pantone. He ran a "company" called Geet. Here's the address of that website. I got a kick out of Mr. Pantone's curren status: http://freeenergynews.com/Directory/Geet/

He (Mr. Pantone) originally stated that his inspiration for his miraculous discovery came directly from Jesus Christ as a means of saving the world from economic and ecological disater. He also had links to his wife's web site which advertized her supernatural skills as a spiritual healer.

Mr. Pantone was a very active member of the local predominant faith and found most of his "collaborators" (read: suckers) in the nearby flock of faithful. (We're one of the few families in our neighborhood who are not members of this institution.) I watched a neighbor (a really nice guy with a great family) sink thousands of dollars into the "Geeterizer" (another variant of the supercarburetor) and nearly lose his home, business and all other worldly posessions while trying (without any success, I might add) to make this product function on his 460 V8 Ford pickup.

For those who are still reading (congratulations on your perseverance), Mr. Pantone is currently a guest of the Salt Lake County Jail, having been convicted of fraud and other similar crimes.

Just as a parting thought, I'll state that I don't doubt the possibility of some new technology that would allow vehicles to get far greater mileage than current methods. But given the current price of gasoline and diesel fuel around the world, one would certainly think that if a company (particularly US auto makers who are struggling to maintain any decent market share) had bought up supercarburetor technology back in the 30s, 40s or 50s, well, the ability to sell vehicles that got 100+ mpg would make that company profits far exceeding their wildest dreams. This doesn't seem to have happened.

Btw, here's a link to a web page that discusses the "Pogue carburetor" which dates back to the 1930s.

I don't know enough about catalytic cracking to make a good argument for or against it, but looking at the plans for a device of this nature, it seems to be nothing more than a device to remove the lighter (and allegedly more energy-filled) components of crankcase vapors and re-introduce them via the PCV vacuum port in the intake system.

P.T. Barnum seems to have said it the best: "there's a sucker born every minute."

unless you want to spend much time and money chasing all you can do is to have a good engine in good condition and use your head on mods as cam,,carb,,ing,,if milage is all you are after stay with a 305 stock cam,,2 bl carb,,good dist and vacum adv,,dual exhaust and play with it for best fuel use...doc