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-   -   Looking for more horsepower input (https://www.offshoreonly.com/forums/general-q/338428-looking-more-horsepower-input.html)

ezstriper 06-20-2016 04:07 PM

if you want to gain that speed going to need 100+, so a blower is about the best choice, procharger would be my choice..

Mtb_05 06-20-2016 06:40 PM

So the consensus is to go the supercharger route. Now what's the major difference between whipple and procharger other than one is root style and one is centrifugal. I'm guessing they have different power bands? And how safe is it with factory internals? The engine only has 181 hours so it has a lot of life left before needing an overhaul. In which case would be the time to make it supercharger compliant. Also what about the the XR drive?

VoodooRob 06-20-2016 07:26 PM

Talk to Eddie Young, Youngs Performance. He is a wealth of knowledge for the 525s. He can put an entire package together for you to bolt-on.

F-2 Speedy 06-20-2016 07:38 PM

The whipple will be twice the cost of a procharger, but you will have parts to sell if you whipple it

snapmorgan 06-20-2016 08:00 PM

I have a friend with a 29 Fountain that breaks a drive every year with a stock 525. Has to pin it to the dash to get on plane. My question would be how easily does your boat get on plane? If yours is like his, the drive will hate you and make you pay.

F-2 Speedy 06-20-2016 09:01 PM

Sounds like your friend needs to go to Tres Martins driving school

thirdchildhood 06-21-2016 06:22 AM


Originally Posted by Mtb_05 (Post 4451550)
So the consensus is to go the supercharger route. Now what's the major difference between whipple and procharger other than one is root style and one is centrifugal. I'm guessing they have different power bands? And how safe is it with factory internals? The engine only has 181 hours so it has a lot of life left before needing an overhaul. In which case would be the time to make it supercharger compliant. Also what about the the XR drive?

Procharger comes in smoother and is easier on the drive. I really like the Whipple kit though. Engine internals are top shelf but compression is a bit high for a blower and cam is a bit stout for a blower. Also if you are running 93 octane in a stock 525 you are both wasting money and hurting performance. It's designed to run on 87. Higher octane ignites harder, burns slower, resists detonation and does not increase power where not needed. I also have a stock, single 525 boat and the Whipple kit would be my choice if I were looking for more hp.

Mtb_05 06-21-2016 07:09 AM

So the 525 will run better on 87 rather than 93? That's something I wasn't aware of.

VoodooRob 06-21-2016 07:16 AM


Originally Posted by Mtb_05 (Post 4451700)
So the 525 will run better on 87 rather than 93? That's something I wasn't aware of.

Bone stock 525 designed for 87 also the 600 SCI.

hadleycat 06-21-2016 07:21 AM


Originally Posted by VoodooRob (Post 4451568)
Talk to Eddie Young, Youngs Performance. He is a wealth of knowledge for the 525s. He can put an entire package together for you to bolt-on.

Great advice, That is who I would talk to


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