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-   -   Supercharger for 502 EFI (https://www.offshoreonly.com/forums/general-q/210456-supercharger-502-efi.html)

ZXXX Donzi 06-09-2009 09:33 AM


Originally Posted by hoozeyurdaddy (Post 2884101)
I think everyone has made it pretty clear, don't believe what you read on some of these web sites, there is always something else to it, and be prepared to spend a lot of money, and I mean alot, if you want more ponies, look in the classified's for a pair of engines already built by a good know builder and spend the bucks, sell off your stock 502's to help soften the blow.

The problem with selling off the 502's and doing it proper the first time is that you will not get to learn many of the expensive lessons so many of us have had the opportunity to experience.

dennis r 06-09-2009 04:13 PM

I just put together a .030 over 502 with dart pro1 heads and a 741 cam.Pro charger with 7 psi boost and it made 815 hp at 5500 rpm and 800 ft lb at 5000 rpm that was on 93 octane so it can be done.

Linster 06-09-2009 04:30 PM

I have a complete set of 575SCi uppers for two motors, complete with everything except the cool fuel system. Both wire harness, upper & Lower, Intake, supercharger, throttle bodies, flame arrestors, distributors, coils, hoses, belts, pulleys, computers, brackets, thermostat housings. You can have a factory look $5500. PM if interested. Merc used these with bravo drives.

Strip Poker 388 06-09-2009 05:00 PM


Originally Posted by Philledan (Post 2882588)
Guys,

i currently have a 38' scarab with dual mercury 502 EFI's in it...Im looking for more power, so i need a supercharger. Anyone have any ideas on which blowerkits are good for the 502. Supercharger USA have a popular 8-71 blower kit which produces around 840hp! im looking for something like this, however, i had never heard of supercharger USA before...so i would like you guys to give your opinion on them, and wheather there are better alternatives?

Thanks!

Try Marv Hineman at http://boostdaddy.com/ 386-569-7226.He was the head guy at Hot Boat .He is knowledgeable in building blower engines.

Iv heard there high volume Supercharger USA ,something about a back log?

Rob:drink:


what about having to cut the engine hatch?

ZXXX Donzi 06-09-2009 08:47 PM


Originally Posted by dennis r (Post 2884525)
I just put together a .030 over 502 with dart pro1 heads and a 741 cam.Pro charger with 7 psi boost and it made 815 hp at 5500 rpm and 800 ft lb at 5000 rpm that was on 93 octane so it can be done.

Oh it can be done and a lot more

Strip Poker 388 06-09-2009 08:52 PM


Originally Posted by Linster (Post 2884534)
I have a complete set of 575SCi uppers for two motors, complete with everything except the cool fuel system. Both wire harness, upper & Lower, Intake, supercharger, throttle bodies, flame arrestors, distributors, coils, hoses, belts, pulleys, computers, brackets, thermostat housings. You can have a factory look $5500. PM if interested. Merc used these with bravo drives.


Quit playing around and put the damn blowers on your own shet.We can buy lower gears in sets of 12
:evilb::evilb:

kennyo 06-10-2009 09:09 AM


Originally Posted by Strip Poker 388 (Post 2884722)
Quit playing around and put the damn blowers on your own shet.We can buy lower gears in sets of 12
:evilb::evilb:

Yeah Linnie, You know Zuck is loving his!!

kennyo 06-10-2009 09:10 AM


Originally Posted by ZXXX Donzi (Post 2884713)
Oh it can be done and a lot more

Makes me feel good about my Ol' Cast iron heads!

ZXXX Donzi 06-10-2009 10:17 AM


Originally Posted by kennyo (Post 2885058)
Makes me feel good about my Ol' Cast iron heads!

Yes sir, you got some good numbers with those.

Wait till you see my new 570 cubic inch cooler!

kennyo 06-11-2009 08:08 AM


Originally Posted by ZXXX Donzi (Post 2885145)
Yes sir, you got some good numbers with those.

Wait till you see my new 570 cubic inch cooler!

Did bell do it?


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