Procharged 292
 

Procharger M1-SCB kit install complete on my 6.2s. Shop is going to air it today and see what she does. Initial test revealed some drive trim issues (see other post), but both motors ran great. Also installed some drive shower hoses to my latham setup. Spinning labbed 32 Bravos.

Maybe K planes next winter!

Cool! Any pics? Not sure if you posted more details in another thread, but did you have any other modifications to the engines other than adding the blower? Did they dyno the engines? Keep us updated on the progress. Thanks.

I will have some pics after this weekend. No significant mods to the motors. Thought we might have to change Tstat and reflash the ecm, but not needed according to Procharger. My shop swapped out plugs and wires for some high performance products. Also had to add intercooler dumps out the back end.

System would probably benefit from an aftermarket exhaust which is also on my list for the future. Recommendations for a SBC exhaust would be appreciated!

I wouldn't mess around...go right for the CMI's made for the 383 Magnum, around $1850-1950 each. Stock motor showed 30HP and 39 FtLbs netted. Test data provided on their website and tech support to determine if its a match. What were the drive trim issues? I'll be following your updates over the summer.

Very interested to see what/how these 292's run with some decent power in them. I wouldn't go too crazy with boost. Heard mixed things about pro-chargers on stock 6.2's without being beefed up and I believe there was a member on here a while back that went down this road too. Cannot remember how the boat ended up running. Good luck and get some PICS! I would second the exhaust

No ECM changes? No fuel system changes? No oil cooler added?

Love to hear details. I'm interested for my Donzi. What shop did the work? My brother lived in Pensacola for a while and couldn't find a shop that really knew what they were doing.

The compression is lower on the 6.2's than the 350 mag so I'd think they will really wake up to even mild boost.

Really excited to hear how this turns out! My close friend is so upside down in his 07 292 that he is stuck with it and his only option is to supercharge or live with it. Hopefully your story motivates him to supercharge!

That 79 @ 14% slip on 32" props with 1.65 lowers. Hope it turns out great.

- and no exhaust system.

Sounds like a recipe for disaster.

I chased down problems with blown rigs for about a decade then went all NA (expensive to make power) but have been a much happier boater since.

Will be watching this one from the sidelines....


Uncle Dave

Procharger kit is supposed to be a bolt on addition with no major changes to the engine components. Boost will be mild, and I don't run too hard. The kit does come with fuel regulators, and I can always add on components as needed later.

ProTec Marine in Orange Beach is doing the work. Great people. They work on boats a lot crazier then mine. They are confident in this project.

All the blower guys say that so they can sell blowers.

If they said- yeah to make it live you'll need to tear it down and rebuild the bottom end and work the vale seats, cooling etc. they would be sell far fewer blowers.

Never had a "bolt on" blower engine last more than a season.

One lasted 4 hours when it leaned out.

I dont wish you ill in the slightest- just passing on my own experience.

Prochargers are probably easier on your rig than a screw or roots blower, but you have to mod the fuel curve at a very minimum.

Sounds like a great project in any case. Curious to see how it all goes down and how long it lasts.

sounds like your 292 is finally gonna get some power it was meant for. Good luck and let us know when you have pics/results

I agree with Uncle Daves take, NA. I went down the road of supercharged and it was fun, but burned me in the end. Never again...NA all the way, but I wish others the best of luck cause there is nothing like the torque from a blower motor...and the whine is pretty cool too!:whistle:
Personally, I think the new Ilmore small block is the ticket for these 292's!

You already have scorpions you need to get that thing some whipples and CMI's :D Kinda agree though I would rather find a 292 ready for power soon and go with one of the Ilmor V-8 with an outdrive setup...could be any of the 400+ motors and I would be happy I think

Agreed the Ilmor "small block" it is a fantastic piece of work.

I also happen to be a fan as I own another boat with an Ilmor 710 in it - and its a wicked piece.

But I think the bucket if duckets is a bit unrealistic to spend given the scope of whats on the table right now.

But he does have money to spend and its up to us to help him do it right.

To make the procharger engine live he really cant make more than 100 ponies more (even thats pushing it) or it'll detonate to death. 1 bad batch of gas at the end of the lake and a hard stik and hes done. Plus the stock injectors will be at the high end of their duty cycle by the time they are tuned for the additional ponies (if they are even good enough)

This wil cause oil heating issues, and likely steering issues (do you have external steering?)

I would lean toward a top end kit or the 400HP "reman" build of the same engine he could just drop in..

Said top end kit would include....

A real set of aluminum heads (Brodix/AFR/Dart) and carbs, manifolds, cams
A real exhaust system set
A set of oil coolers

I say carbs because there is work to do to the injection systems to keep everything happy with another 100 ponies & because hes already resigned himself to bigger injectors and maybe even a bigger fuel pump(s) and possibly a recirculatiing loop if he doesn't have one today.

This will make about 75-100HP more that what he has now and be roughly equivalent to what he'll get by bolting prochargers on a stock engine.

Hed get a bunch of seasons out of this, pick up a grip of speed, and have really good parts for when its time to go into the bottom end and do forged internals for a real blower engine.



Uncle Dave

I also went down the Procharger road before. You need to change the injectors, upgrade the fuel system, add oil coolers, and reprogram the ECM or you will have problems. That bolt on and go stuff is BS. I would also upgrade the head gaskets. Prochargers do work and stay together if done right. Jeff Wurl

Ok, some of you guys have justified my hesitation on posting about my build. I appreciate the suggestions and wisdom, but at the same time some of us government employees don't have 30 grand to drop on an engine build all at once.

I got these kits at a great price from a close friend who ran them on his 292 for a few years problem free before he sold his ride last year. I also have faith that my shop would not send me down a road that would result in my motors getting trashed. I did present all of those questions prior to obtaining the parts and doing the install (head gaskets, fuel system, exhaust, etc).

I created this thread to share my experience and results to those who have been considering a ProCharger system. I have done my research and read all the pros and cons. At this point I am not interested in comments regarding what I should do to make it "right" or anyone's bad experience with a supercharged motor. Everyone has their own way to skin a cat.

I look forward to posting some numbers for those who are genuinely interested in a possible upgrade to the already awesome 292 or Mercury small block!

Don't let others get you too down...your boat, your money! I will not lay off for not having any pics though...and you BETTER post some #'s when you get them :D

I love my prochargers, have 11 seasons trouble FREE! You sound like you have your head on stright. You boat will be fine.

Looking forward to hearing the results. My close friend has a 07 292 that is in need of chargers! Hopefully this thread will talk him into it.

Thanks for sharing.

When you mentioned you hadn't even done an exhaust system upgrade (the very first step in building a marine engine) it seemed clear you were actually looking for input rather than creating thread of people cheering you on. Then you didnt seem clear at all about what else might have been done or not.

I read your older thread where you asked about where you should go to install these and between legendary, precision, and Eddie - you ended up at ProTec.

I looked up pro tec marine in orange beach to see wether they had a prop shaft dyno or a superflow type engine dyno as I was curious wether or not they are actually tuning your ECU on a dyno with an O2 sensor installed in your exhaust - or just installing your used parts. (Im guessing the latter)

Does Pro Tec have a website? I found them , but not their site.
Do they have an in house dyno if so is it a prop type or engine?

I have a buddy with a ski boat and a scorpion in it reading this thread along with us waiting to see what happens over time so in a way I have interest in watching this to look out for him.

Not sure what you are referring to with "30K".

Keep us posted on how it all goes.

Uncle Dave

Pro tech is just another small shop that caters to the performance crowd. No need for a web site, word of mouth mostly. If he had a web site he would be over run real quick. He is also a great outboard mechanic. Merc certified..

LC

Looking forward to some updates! Then I can talk my friend into procharging his 292!

Update:
Shop had to work out some gremlins with my motors before completing the ProCharger setup. Water pressure was lacking so they replaced the through hull passages and plugged some of the high water intake holes on the sides of the lower drives. Decided to beef up the top end with blue printed head gaskets and ARP head bolts. Both motors ended up having 2 fuel injectors that weren't functioning properly. Ran the boat all weekend without the blowers connected and she was humming along both motors spinning 5000 rpm, 74 mph at WOT in the stock configuration.

Water test today went fantastic with the blowers connected and 28p props. 5 guys and 3/4 tank of gas and the boat was hitting the rev limiter at about half throttle.

Shop will test the boat with the labbed 32 bravos later this week. I hope to get some final speed numbers via GPS.

Blue printed head gaskets?

I may have misunderstood but I thought I heard blue print from my mech. I guess I could've just said "new aftermarket" head gaskets.

My guess would be he said Fel-Pro blue head gaskets which are their Performance series gasket.

Ran my boat all last weekend and she is running really strong. Mid-range acceleration is awesome even with the labbed 32s. I am still bouncing off the rev limiter at about 2/3 throttle. Topping out just under 80 mph. It seems I may have to make some other adjustments to get over the 80 mph hump (props, gear ratio, rev limiter) according to the Theoretical Speed Formula.

T.S. = Engine RPM / Gear Ratio * Prop Size / 1056

(5000/1.65) x (32/1056) = 91.8 mph

91.8 mph - (10-20% hull efficiency loss) = 73.4 - 82.6 mph

I am wondering how the boat would react to a set of 34p Bravos. I may find a set to test out, but concerned about handling. The 32s have already given me a lot more bow lift.

Precision Marine could raise my rev limiter to 5500 rpm but that raises questions.

I am not familiar with gear ratio but wonder if dropping to 1.50 would be a favorable choice.

Any experience or advice regarding any of these changes is appreciated!

I have read the actual pitch of Bravo props is actually a little bit less than advertised. So running the numbers with a 31.5" pitch at 5000 rpm and 79 mph is 13% slip. I see 10-13% slip running wide open with labbed Bravo's, so it looks like you are right there.

My 2006 6.2's run to 5200 rpm before the rev limiter kicks in. This only happens when airborn since my stock 6.2's can only turn my 28" Bravos 5000 rpm!

No other changes except going to 1.5 gear and you should see 87 mph at 5000 rpm, assuming you can turn that rpm after the gear change, and it sounds very possible.

Great to read your 292 is running strong. Do you have hydraulic steering? How is the handling? Someday I hope to be running the speeds you are working towards!

Thanks for the updates!

My friends 2007 292 only goes 68 on gps stock. How can you hit 74? Salt water?

What boost are you running

Gotta love those prochargers though. I love mine!

I have been told that tachometers can be off compared to what the computer is reading, so maybe bouncing off 5200 rpm in reality.

I think the power is there for the gear change if I go that route. I still have to watch the throttle getting out of the hole as it has more then enough power to blow out the 32s just like it did stock with 28s.

I do have hyd steering and it still tracks great at speed. The bow lift was definitely noticeable after the prop change.

I have only run in salt water since I have owned it and it is pushing 5 psi of boost. I was using a friend's iPad for the 74 number, and I am guessing it wasn't too accurate. My guess would be that I am around 70-72 mph stock.

I picked up the ProChargers from a good buddy back in Virginia. He had them on his 2001 292 and he ran 86 mph on GPS by way of his rev limiters changed to 5500.

Great to hear she is handling the added HP. I believe these 292 hulls can run fast before running into handling issues. They are flat boring in anything other than really rough water with stock power.

This is the best I have seen in perrrrfect conditions. Typical is 68-70 mph.

sweet!

My 292 will chine walk on flat water at 80mph. If its choppy chine goes away! Glad to hear prochargers are working for you! I had 25 outlaw with 496 and procharger and it worked great. Put 180 hard hours on it with 0 problems. Make sure u run good fuel. If you predetinate with boost you will kill cast pistons. Also I would add oil coolers. 6.2s do not have any and run oil hot stock!

Are oil coolers relatively easy to install? CP Performance has a good selection online, but I would be interested if I could do it myself. Boat has spent too much time in the shop this season.

I wish I had that Smartcraft display!

I know that feeling! (spending to much) Yes oil coolers are pretty easy to install. I bought mine from cp with power steering coolers all in one and mounted in place of factory power steering cooler on back of engine. Just make sure you use braided an fitting oil line. I just ran line from oil filter to oil cooler and then back to engine.