Procharger on a SB?

[toger13]

hi i have a 1999 bayliner 2352 cuddy it has a 1998 spec mercruiser 350 mag mpi with a bravo 1 drive

now i have a craving for some more power and happened to find a procharger kit on the net not 100% sure it was for my engine or the later ones but anyway just after some info on it if anyone has done it?

are they just bolt on kits do you not have to do anything with the fueling aslong as you stick to no more than 5psi of boost?

i know the prop will have to be changed to make use of the power

does the standard map work with boost

are any other mods required to get the bosted "490" flywheel power

it seams too easy for $4500

sorry for all the questions here in the uk people dont do stuff like this to there boats only cars lol

Thanks
Si

 

[toger13]

Re: Procharger on a SB?

this was the one i looked at by the way

http://www.cpperformance.com/detail.aspx?ID=2968

Si

 

[Bondo]

Re: Procharger on a SB?

Ayuh,... I'm sure that the folks at CP can answer your questions,...

iboats isn't a Hot Rod forum for the most part,... I've not seen any threads about this option...

 

[toger13]

Re: Procharger on a SB?

i have sent pc a message and the place selling the kit will see what they say

Si

 

[wca_tim]

Re: Procharger on a SB?

I might do some searches... opinions vary on the wisdom of putting one on a stock bottom end, but I get a sense that as long as you don't get greedy with the boost and have a relatively fresh engine to start with it could be ok. The tuning / set-up is not necessarily trivial by some accounts. I do know that by the time you pay for one, you can be running a normally aspirated stroker that would arguably be more reliable and make just as much power in the long run.

I would do some searches on these forums... www.offshoreonly.com and www.speedwake.com. There are some other places that would have good info, but those two come to mind off the top. Good luck!


ps. addition: If you're going to spend the coin for a procharger, spend the extra to have an experienced marine builder set it up. You only have to lean it out hard once for things to come unglued everywhere... Also, the intercooler is a major deal - do it. It's funny you ask about this right now.. I'm seriously considering either a procharger or a whipple set up... and have been looking into it. I would build or buy a different engine with more cubic inches, beter heads and higher compression before putting a blower on a stock engine. Just my two cents, opinions will vary of course.

 

[SuzukiChopper]

Re: Procharger on a SB?

I'm curious what kind of intercooler comes with the kit and where you would mount it for airflow. Also, even running at 5lbs of boost can detonate the motor and blow pistons. Safest thing to do is provide extra fuel in some sort of way (example: Megasquirt). If you're spending $5k on the kit, the extra $500 for the Megasquirt is easy insurance (and gives you the opportunity to increase the boost, you know you'll want to). Kits should mostly be bolt up depending on room, etc, just make sure you know what you're doing and don't cut corners.

 

[Philster]

Re: Procharger on a SB?

Call CPP or other company, as suggested. The computer will need reprogramming. Often the seller/distributor includes a Pro-Charger package that includes remapping and any brackets and other 'musts' as part of a package. Have it professionally installed.

The 350 is a common motor and the pro-charger package is probably tuned to it very nicely.

Is your engine all forged internals? Find out. If it's all forged, I'd sleep better at night. All forged = much more accepting of boost/stress.

For example, 502 Mercruisers are all forged and one of the easiest and most efficient upgrades is a Pro Charger.

 

[dakine]

Re: Procharger on a SB?

The world of BOOST is not for the lighthearted.
Without the ability to run an oxygen sensor the tuning process is very difficult.
Prepacked tuning rarely works well and melted pistons are the result.
I don't mean to discourage, but unless you are really ready for some serious hot rod stuff you would be better off to go for more cubic inches.
You will also require premium fuel which adds more cost.

 

[toger13]

Re: Procharger on a SB?

thanks for the info guys

the intercooler mensioned is what we call a charge cooler here in the uk its an air to water cooler rather than an air to air cooler

as for getting a known boosted marine engine builder i think that would be near impossible over here as i say its not the done thing lol

as for the engine i dont know what internals it has from standard

i know afair bit about boost as i have done a custom turbo setup on my citroen saxo 5 psi sounds nothing lol i run my 1.6 litre (97ci) 16v at 22-23psi

as for fuel normal pump gas over here is 95 ron any way you guys have 91?

Si

 

[45Auto]

Re: Procharger on a SB?

i know afair bit about boost as i have done a custom turbo setup on my citroen saxo 5 psi sounds nothing lol i run my 1.6 litre (97ci) 16v at 22-23psi

Take 3 or 4 additional Citroen Saxo's, flip them on their roof, then tie them behind your car. Now when you drag them down the road you'll have about the same load on your car engine as your boat motor sees any time it's pushing your boat through the water. See how long your engine lasts at 22-23 psi of boost under that load.

 

[199q]

Re: Procharger on a SB?

With my desert racing experience a pro charger has not really preformed as desired, and either we have gone with a traditional blower or regular style turbo.

a procharger is basically a turbo with a pulley instead. I would recommend a blower or turbo instead, but as others have mentioned, be very careful of the other aspects of the motor, as a forced induction system will require fuel system changes and tuning at any level of boost, and anything above about 5 psi you will need to start looking at an intercooler (notice i said need, its always recommended!) , and around 10 psi you will need to figure out the bottom end.

a procharger will cost you more money in the end. there are many kits for the 350 that will supercharge your motor for way less than 4500.

 

[199q]

Re: Procharger on a SB?

thanks for the info guys


as for fuel normal pump gas over here is 95 ron any way you guys have 91?

Si

ron is a different way of measuring octane than America use. the ratings are pretty comparable, to Europe however.

 

[toger13]

Re: Procharger on a SB?

Take 3 or 4 additional Citroen Saxo's, flip them on their roof, then tie them behind your car. Now when you drag them down the road you'll have about the same load on your car engine as your boat motor sees any time it's pushing your boat through the water. See how long your engine lasts at 22-23 psi of boost under that load.

probable more lol

what other options are they?

all i can find is wipple and there about $6500

neather company have replyed to me emails yet

Thanks
Si