Turbo Charge Mercruiser Engine??

[pwrplay]

Hey, has anyone done or seen it done, turbo charging a Mercruiser 5.7 L engine in an express cruiser?

Are/Would there be any benefits? Would it be hard to do?

Just thought I'd throw it out there to see if it is even feasible.

 

[bomar76]

Re: Turbo Charge Mercruiser Engine??

Old news....pretty much been abandoned.
Banks and other used to sell kits, really not a good way to go on a boat, superchargers (Procharger for one) are 100X easier to install.
Google them up.

 

[pwrplay]

Re: Turbo Charge Mercruiser Engine??

This topic is more out of curiosity than anything else. I am of the type to keep it stock and reliable then mess around and have problems.

What are the difficulties with Turbo Chargers?

Are the Superchargers reliable?

 

[Limited-Time]

Re: Turbo Charge Mercruiser Engine??

Heat, effective RPM range, and the dreaded turbo-lag all come to mind.

 

[pwrplay]

Re: Turbo Charge Mercruiser Engine??

Thanks for the info guys. I'll just keep my boat stock. LOL

 

[HT32BSX115]

Re: Turbo Charge Mercruiser Engine??

Turbo lag would not really be a problem on a boat I would think.....

With a "wet" exhaust it would absolutely be a challenge though. I know a guy in Ca that put a 400 small block and belt driven blower in his Bayliner .... It's probably easily 450 hp! . It's in front of an Alpha though .....(I hope he doesn't "straight-arm" it!!)

It's FAR easier to do a belt driven supercharger than it is to to do an exhaust driven supercharger because of the unique exhaust requirements of a enclosed marine engine. It wouldn't be a problem in a boat with an exposed engine.

Heat, effective RPM range, and the dreaded turbo-lag all come to mind.

 

[QC]

Re: Turbo Charge Mercruiser Engine??

It's the exhaust piping for a turbo that make it both a hassle and a fire hazard . . . To do it properly you would need wet piping from both manifolds, to some space where you'd mount the turbo and then back to the Y pipe from the turbo exhaust outlet, or pipe that through transom. Plus you need a water cooled turbine housing. All a problem if not factory. I agree that turbo lag is not that bigga deal, especially with a cruiser.

 

[Bondo]

Re: Turbo Charge Mercruiser Engine??

Ayuh,......

If you look Long,+ Hard you can find systems just as described by QC,....
Water cooled manifolds, water cooled turbos,+ wet risers to dump everything out the back......
I've seen them for both SBCs,+ BBCs.....

I've been rat holing all the pieces to do a dry exhaust turbo'ed Jetdrive for years now,.....
'course,... About All I'm lacking is the Time to put it all together.......