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I am planning a custom car. The guy is starting with an AMC AMX which weighs about 3,500 pounds.
It will have an automatic transmission. What engine setup is good for thirty miles per gallon at 65MPH and do about 13 flat in the quarter mile?
"Only Christ is the fullness of God's revelation."
Everyday Hunter
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Campfire 'Bwana
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Campfire 'Bwana
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I got banned on another web site for a debate that happened on this site. That's a first
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Blown 502. It can be done. Thank me later 
Recovering Yankee
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Campfire Tracker
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To do it you want to do will require spending far more on the engine and transmission combo than you would ever save in fuel economy. How many miles are you going to drive a thing like that anyway? My classic vette gets only about 1000 miles a year on it. Drop a 401 in it with maybe a newer trans with O/D and roll.
Yours in Liberty,
BL
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Campfire Ranger
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Campfire Ranger
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A modern single-turbocharged 6cyclinder engine with one of the new controllers on it . Set it on an economical tune for mileage - performance setting for fast times . Planning on 30mpg in a car like that is like planning a rifle build like the big firebreathers you shoot - then wanting it to be fur-friendly on grey fox  .
Last edited by ol_mike; 04/16/21.
PRESIDENT TRUMP 2024/2028 !!!!!!!!!!
Posted by Bristoe
The people wringing their hands over Trump's rhetoric don't know what time it is in America.
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Campfire Tracker
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Blown 502. It can be done. Thank me later You mean like this? ![[Linked Image]](https://www.24hourcampfire.com/ubbthreads/gallery/80/medium/159155.jpg)
Yours in Liberty,
BL
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Campfire Ranger
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Campfire Ranger
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Little wear around the ring lands
PRESIDENT TRUMP 2024/2028 !!!!!!!!!!
Posted by Bristoe
The people wringing their hands over Trump's rhetoric don't know what time it is in America.
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Campfire Ranger
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I’m not seeing you hit that goal.
Maybe 20mpg. Maybe......
I’d look for a lq4 to swap in it. Find a good tremec with an over drive and a fairly tall rear end.
“Life is life and fun is fun, but it's all so quiet when the goldfish die.”
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Campfire 'Bwana
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Campfire 'Bwana
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I’m not seeing you hit that goal.
Maybe 20mpg. Maybe......
I’d look for a lq4 to swap in it. Find a good tremec with an over drive and a fairly tall rear end. Correct there is no engine that will have that type of acceleration of the line and that much milage
I got banned on another web site for a debate that happened on this site. That's a first
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Campfire Ranger
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1 liter engine is great on gas but will not get out of its own way. Really crap in the mountains but will get 30 miles to the gallon with the right drive train.
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Campfire Kahuna
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If 30 MPG is important, then you can’t afford the project
Sam......
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Campfire Ranger
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Anybody wanting to restore an AMC should have enough money to drive it.
"To compel a man to furnish funds for the propagation of ideas he disbelieves and abhors is sinful and tyrannical." -- Thomas Jefferson
We are all Rhodesians now.
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I am planning a custom car. The guy is starting with an AMC AMX which weighs about 3,500 pounds.
It will have an automatic transmission. What engine setup is good for thirty miles per gallon at 65MPH and do about 13 flat in the quarter mile? Can't be done. You'll never get that acceleration and that weight with that mileage. 2 of 3 is possible, but not all 3. Cheapest way to go that fast is to give up 2 wheels and get a sport bike, smartest choice is to slow the hell down. IMHO. Tom
Anyone who thinks there's two sides to everything hasn't met a M�bius strip.
Here be dragons ...
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I looked up the weight of an AMX & It looked to me to be more like 31-3200# for the 68-70. The 71's are likely heavier. But what ever the weight, shed some. All ya can. Gearing will need serious consideration as well.
Still not seeing both goals met, but the times are a changing, never say never.
Good luck.
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Campfire Ranger
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It’ll be a bunch of money, and at the end, you’ll be stuck with an AMC.
😬
“Life is life and fun is fun, but it's all so quiet when the goldfish die.”
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Wouldn't the trade in value of such a thing be about zero?
Don't blame me. I voted for Trump.
Democrats would burn this country to the ground, if they could rule over the ashes.
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you could ad electronic fuel injection to the stock motor, cam it and gear it and the owner will forget about the 30 mpg while he's grinning ear to ear!. IE restomod. Or pull a 2.7 ecoboost out of a wrecked Mustang 21/30 mpg. A tune will ad 60hp if he wants a little more. https://www.ford.com/cars/mustang/
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