5.7L 1970 dodge charger

[dodge freak]

I thought he meant the motor has them and if you take them off the motor will not run right even if the cats. are removed the back pressure will change and may cause a lean air-fuel ratio.

Look its still a 36 year old car-what about the brakes, springs, steering, wiring, lights all that stuff can still break down. I look at that ad again, sounds like the speedometer is not working but some place can get it going. Yeah-right for what a $1000 , and that 25 miles per gallon is when half the motor is turn off, which all those sensors are for, thats very tricky to set up right and not cause problems like the motor-car shaking, the trucks do not have it yet.

I think for anybody who wants fuel injection they are better off getting the edlbrock unit for $2,500 and a gear vendors overdrive unit to go behind a 727 trans. The edlbrock is user friendly-easy to adjust, not like that factory hemi, it get much better milage and run great too. The 360 and even 318's are great little motors and will get good milage with that fuel injection. Wait until the aftermarket gets a kit out to swap these new hemi's, otherwise it may turn in to more work than fun.

[Silver R/T]

Go down to a drag strip sometime and see "real" fast cars and then look if its a carb or F I , maybe it can be done but why? These carbs. are still great after all these years.

Another problem with F I is that to get a racing motor to have max power at 7000-8000 rpms you need a hugh injector. No problem but then at low speeds 2000 rpms its too big and will run rich. I think the answer is 2 injectors for each one, at low speed one injector is working at high speeds they both are, thats how these $300,000 sports cars do it but if there is no emissions to worry about why again. I do think there are 10,000+ rpms  F I racing motors out there ,mostly overseas but those cars cost over 1 million dollars to build.

These top fuel cars that run 300 mph in the quarter mile burn gallons of gas in 6 seconds, a fuel injector can't spray that much fuel, you need multi-ones. This is getting off subject-sorry, lets see how much that car gets bid up too.

A fuel injector is regulated by computer so they dont run rich/lean

[dodge freak]

If the injector is too big it won't run right at low speeds. Look at the aftermarket fuel injectors for the Chevy motors, they have 3-4 different ones, the bigger ones are for hotter motors that need more fuel, if you put too big of a injector on it will spray too much gas, there is a limit on how slow the gas can come out and still be a nice strong spray. You just can not put any injector on and think the computer will lean or richen it up. They are just like carbs. one size does not fit all.

[Blown70]

Go down to a drag strip sometime and see "real" fast cars and then look if its a carb or F I , maybe it can be done but why? These carbs. are still great after all these years.

Another problem with F I is that to get a racing motor to have max power at 7000-8000 rpms you need a hugh injector. No problem but then at low speeds 2000 rpms its too big and will run rich. I think the answer is 2 injectors for each one, at low speed one injector is working at high speeds they both are, thats how these $300,000 sports cars do it but if there is no emissions to worry about why again. I do think there are 10,000+ rpms  F I racing motors out there ,mostly overseas but those cars cost over 1 million dollars to build.

These top fuel cars that run 300 mph in the quarter mile burn gallons of gas in 6 seconds, a fuel injector can't spray that much fuel, you need multi-ones. This is getting off subject-sorry, lets see how much that car gets bid up too.

A fuel injector is regulated by computer so they dont run rich/lean

YOU MEAN TO SAY IF YOU SET THE COMPUTER CORRECTLY.....

[694spdRT]

According to Street and Performance (aka Hotrod Lane) you don't need to run cats for it to run properly. Just need the oxygen sensors hooked up in the exhaust. The way it sounded in the video some of the other emissions items could be by-passed on the cars they were building. I do agree that if you are not going to update or restore the rest of the 30+ year old parts on a car having a modern engine will not get you much more reliability.

BTW: In the video the new automatic trannies in the Hemi 300's and Charger's are actually quite small and look to be a much easier swap in older cars than the previous A518's or Hemi truck trannies.

[dodge freak]

I think those are 5 speeds too.

[Ghoste]

One of the 66 Chargers used in the movie Big Fish was purchased by a school in the Detroit area and they put a 5.7 in it.  I don't know if they have any performance data on it yet but they have been showing the car all over the place.  It fits in there pretty neatly.

[dodge freak]

last bid was $16,555 or so. His resever was not met and he never said what it was. Well now he has a 1970 charger with a $5000+ motor and can not sell it. Yes things are not selling to good right now but somethings still are. I am sure if it had a # not maching 440 6 pack it would have hit $20,000 if not more. The motor might have cost about the same, take a $3000 used but great shape 440 and get a $2000 6 pack set up. Would not get 25 miles per gallon but it be worth more on the open market.

[694spdRT]

I think that auction was not advertised very well. It seems worded as more of a "here is a 5.7 Hemi and by the way we put it in an old Charger or something". Little detailed info was given on the condition of the car and it was a green 383 car to begin with which usually brings less $$$.  The install looked to be incomplete too as the gauges, A/C unit, etc. were not finished and that never helps. Noticed they didn't even bother to vacuum it out either.

In this car I agree that a 440 Six pack setup probably would get more value on the open market. IMO it still would not be any better for an all around cruiser and that is what I want in my next car. I don't want a car to sell anyway....I want it to drive.