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-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   500EFI bolt on hp upgrades (https://www.offshoreonly.com/forums/general-q/153787-500efi-bolt-hp-upgrades.html)

TylerCrockett 03-18-2007 07:14 PM
Originally Posted by gsmith9898 (Post 2062204)
any progress on getting into the computer?
No but I know how to get rid of your old one and put a Mefi 4 on there.

TylerCrockett 03-18-2007 07:18 PM
Originally Posted by tomcat (Post 2062211)
Hey Tyler:

Good idea! What RPM range is it good for? I'm driving down to Sterling next week maybe I can drop in on Wed?

Tom
Tom I put it on a 500 EFI with aluminum heads and a little more camshaft and made over 630HP. Stop in Wed on your way thru.

gsmith9898 03-18-2007 09:42 PM
Originally Posted by TylerCrockett (Post 2062568)
No but I know how to get rid of your old one and put a Mefi 4 on there.
Going back to dist?

Bob280Silencer 03-19-2007 12:19 AM
Tyler,gotta see this thing.I really love it when "trick" stuff works! BOB

TylerCrockett 03-19-2007 06:36 AM
Originally Posted by gsmith9898 (Post 2062775)
Going back to dist?
No we would just change your crank pickup to a 58 X and use your coils you already have.

TylerCrockett 03-19-2007 06:38 AM
Originally Posted by Bob280Silencer (Post 2062906)
Tyler,gotta see this thing.I really love it when "trick" stuff works! BOB
Bob I should have a finished part soon. I will post pictures.

PatriYacht 03-19-2007 07:15 AM
I was there when it was on the dyno. Nice and smooth and didn't it make 634 one pull?:D

gsmith9898 03-19-2007 07:23 AM
Originally Posted by TylerCrockett (Post 2062949)
No we would just change your crank pickup to a 58 X and use your coils you already have.
What can you expect out of the changes you make with the mefi 4?

TylerCrockett 03-19-2007 05:44 PM
Originally Posted by gsmith9898 (Post 2062990)
What can you expect out of the changes you make with the mefi 4?
I can tune it.

TylerCrockett 03-19-2007 05:45 PM
Originally Posted by PatriYacht (Post 2062981)
I was there when it was on the dyno. Nice and smooth and didn't it make 634 one pull?:D
Yes that's before I detuned it because the customer wanted 600HP. :D


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