stock 502 hold up to a blower?
09-04-2011, 11:35 AM
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stock 502 hold up to a blower?
hey guys, i have 2 stock 502 mag mpi motors and i want to convert them to a carb and blower setup, just want to run small blowers or what ever you guys think will work. let me know thanks alot
09-04-2011, 01:57 PM
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im not really sure i want the efi, my last 502 mpi went through pcm's, in 3 years 2 pcms burnt out, after i finally switched to a merlin single plane intake and 780 holley, better performance and a hell of a lot simpler setup. just want a little more out of the 502's i have a 28 challenger with 28p props and im seeing 68-69 all the time on gps. i would think with a 28' boat with twin 502s should run alot faster.
09-04-2011, 02:09 PM
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fixx
im not really sure i want the efi, my last 502 mpi went through pcm's, in 3 years 2 pcms burnt out, after i finally switched to a merlin single plane intake and 780 holley, better performance and a hell of a lot simpler setup. just want a little more out of the 502's i have a 28 challenger with 28p props and im seeing 68-69 all the time on gps. i would think with a 28' boat with twin 502s should run alot faster.
i know what you mean about efi vs a carb,,you can always fix a carb problem with kmart tools
do you have bravos or trs drives?
09-04-2011, 03:23 PM
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Spend a little extra now while you have the intake off. I would pull the heads, check the valve springs and for sure replace the head gaskets. To go a step further but not necessary I would replace the camshaft with somethiong better suited to a supercharged application and think about replacing the exhaust valves with inconel.
09-04-2011, 08:26 PM
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im not really sure i want the efi, my last 502 mpi went through pcm's, in 3 years 2 pcms burnt out, after i finally switched to a merlin single plane intake and 780 holley, better performance and a hell of a lot simpler setup. just want a little more out of the 502's i have a 28 challenger with 28p props and im seeing 68-69 all the time on gps. i would think with a 28' boat with twin 502s should run alot faster.
09-05-2011, 12:14 AM
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Spend a little extra now while you have the intake off. I would pull the heads, check the valve springs and for sure replace the head gaskets. To go a step further but not necessary I would replace the camshaft with somethiong better suited to a supercharged application and think about replacing the exhaust valves with inconel.
You can do a procharger setup with a carb. You can also do a roots blower or whipple setup. Some 250/256 blowers will make 575-600hp on your engines.
