Supercharging a 500 EFI
 

I have a 85 hour 500 EFI I want to get more power from, I have done a lot of reading and it seems the threads are started but always end up turning a different direction before they finish addressing the issue. I have looked into several methods of gaining power but it seems centrifigul superchargers end up getting the nod. So there are several companies out there that have a kit , Vortec, Procharger , R-tech just to name a few. Who has the most complete user friendly turn key Kit? I am at a loss here and would really rather build pwer N/A but it seems the efi is limiting my choices, so if you have a good recipe for 600 -650 HP NA on a 500 EFI let me know otherwise...........



who has the best kit as asked above.

Bryan

Re: Supercharging a 500 EFI
 

I would have to say whipple :cool:

Re: Supercharging a 500 EFI
 

whipple has ,, lets just say less than desireable turn time. i would suggest pro charger or vortec.

Re: Supercharging a 500 EFI
 

What do you mean by turn time?

Re: Supercharging a 500 EFI
 

Ordre now and be ready for a nice spring run...in 2007! :eek:


Actually I don't know that, but I keep hearing they are way backed up.

Re: Supercharging a 500 EFI
 

Whipple has apparently had a hard time delivering product.

I vote for a Whipple with a F.A.S.T. computer, running closed loop!!

Open loop sugs! I have a hard time believing that Merc even does that...

PM FTMBob for more details...

Here's his motor.. I love that motor! You even program it from a laptop while on the water for perfect everything, and it stays there with varying conditions!!

IMO, this is THE setup for a blower!!!
Kent

Re: Supercharging a 500 EFI
 

Contact Fred Cecil AKA "Too Old" at Trick Marine.

He is a dealer for Vortech and has some good information and good prices.

Personally I am leaning toward Vortech because of two boats that I know are running them with VERY good results.

Another thing is their kit is 100% COMPLETE!

Call Fred.

Re: Supercharging a 500 EFI
 

I jest saw a Whipple in the classifieds
I like my Whipple's

Re: Supercharging a 500 EFI
 

Mine ran great but I did go through the engine first.

http://www.offshoreonly.com/forums/s...hlight=vortech

Re: Supercharging a 500 EFI
 

We have had very good results using the vortech system, I wouldnt touch a procharger. 600-650 HP could be attained with very little boost. We have several boats running this setup making 700-950 HP with the vortech charger. All the setups have had no issues and truely been flawless. We are very impressed with the setup.
Matt
Derebery Performance
www.dpmpower.us