440 /super charger add on ?
Just Bolting on a 6/71 or 8/71 and running the engine is just the tip of the iceburg . What carbs to use , what ignition system to use , what radiator to use , what size exhaust system ? All this comes into play with blowers . This what I have learned thru trial and error and what has changed from my first one till now . Back in the mid 80's I built a 1972 Dodge Colt with a 440 with 6/71 from BDS . I had no idea what I was doing . At the time BDS was doing stage 2 carbs . I used 2 750 double pumpers , at the time they would block off the power valve and jet the carbs richer to keep from frying pistons when you got into boost . I used forged pistons that were 8-1 compression .
Stock LY rods with ARP rod bolts . All this held up quite well for the intended use . The exhaust system was 2 1/2 into straight thru glass pack mufflers . there was little room for anything else under the small car . Boost with exhaust bolted up would put the boost guage well past 15 psi . with the mufflers off you would see about 7 psi . and would really wake up the car , Picture John Force style burn-outs . The radiator was a Don Hardy Vega for a big block . Could drive the car out as long as the temp was below 85 degrees , after that it would spike and puke when shut off . The oil in the car had to be changed after 500 miles due to the rick carbs. Just to let you know the reason the power valves were blocked off was the carbs do not see a vac. signal on top of the blower .
Next I used a MSD 6al box and MSD dist. This worked out well but you will need to run a colder plug in the engine . I still has plug fouling from to much fuel . On a cold motor you would pump the petal 3 times and count to 10 then start it up , if it starts to stutter and cut off let it cut off and then try and restart it if not you will get a back fire thru the carbs .
Car would run 0-100 mph in second gear in 7 seconds flat , at 35 mph in drive it would turn the car sideways and scare the hell out of you . The car is now in a car museum in Cleveland Oh.
The next car was a 1971 Dodge Demon for a friend of mine .
Used a 8/71 with the same carb setup but used 3 inch exhaust with a h pipe in it . Radiator was a Griffin with electric fans . Looking for room for the cooling system we moved the motor back . Had to change out the wiper assembly to a 3 speed due to blower hitting motor , still had to clearance the gear box on wipers with a file to get clearance . We had to move the radiator forward to clear the blower drive . poster a pic of car , look and you can see it moved forward .
Just Bolting on a 6/71 or 8/71 and running the engine is just the tip of the iceburg . What carbs to use , what ignition system to use , what radiator to use , what size exhaust system ? All this comes into play with blowers . This what I have learned thru trial and error and what has changed from my first one till now . Back in the mid 80's I built a 1972 Dodge Colt with a 440 with 6/71 from BDS . I had no idea what I was doing . At the time BDS was doing stage 2 carbs . I used 2 750 double pumpers , at the time they would block off the power valve and jet the carbs richer to keep from frying pistons when you got into boost . I used forged pistons that were 8-1 compression .
Stock LY rods with ARP rod bolts . All this held up quite well for the intended use . The exhaust system was 2 1/2 into straight thru glass pack mufflers . there was little room for anything else under the small car . Boost with exhaust bolted up would put the boost guage well past 15 psi . with the mufflers off you would see about 7 psi . and would really wake up the car , Picture John Force style burn-outs . The radiator was a Don Hardy Vega for a big block . Could drive the car out as long as the temp was below 85 degrees , after that it would spike and puke when shut off . The oil in the car had to be changed after 500 miles due to the rick carbs. Just to let you know the reason the power valves were blocked off was the carbs do not see a vac. signal on top of the blower .
Next I used a MSD 6al box and MSD dist. This worked out well but you will need to run a colder plug in the engine . I still has plug fouling from to much fuel . On a cold motor you would pump the petal 3 times and count to 10 then start it up , if it starts to stutter and cut off let it cut off and then try and restart it if not you will get a back fire thru the carbs .
Car would run 0-100 mph in second gear in 7 seconds flat , at 35 mph in drive it would turn the car sideways and scare the hell out of you . The car is now in a car museum in Cleveland Oh.
The next car was a 1971 Dodge Demon for a friend of mine .
Used a 8/71 with the same carb setup but used 3 inch exhaust with a h pipe in it . Radiator was a Griffin with electric fans . Looking for room for the cooling system we moved the motor back . Had to change out the wiper assembly to a 3 speed due to blower hitting motor , still had to clearance the gear box on wipers with a file to get clearance . We had to move the radiator forward to clear the blower drive . poster a pic of car , look and you can see it moved forward .