Dyno results - Nice Job Eddie!
 

Eddie Young (Young Performance) finished my 540 on the dyno today. I asked for 825+ hp when he started my motor, he delivered 872 hp! The motor makes peak power at 5,700. At 5,500 it makes 862 hp at 7 lbs of boost.

The motor is a Procharged 540 with a M-3, Big Brodie heads, a pretty stout cam and a whole bunch of custom goodies. He did lots of honing on the intake and some bowl blending on the heads. Eddie transformed my black 502 Mag into a work of art. For those who have not seen Eddie's work, he puts a bunch of thought into all of the details. Everything was moved around and strategically located. He spends a ton of time on the internals making sure that all of the tolerances were just right and that the oil can really flow. It is built to make good power and last. He spent many hours educating me on what he did with my engine and why. I have gained a new appreciation for what goes into a custom built motor. There is a whole world of difference between a real custom engine and a crate engine.

As far as parts details you can go to Youngperformancemarine.com. That will tell you a bunch of the stuff that went into the motor.

Sounds great bro. Congrats.

PICS ???????????????????????????????????

I took these with my cell. I will try to get the better pics that I took with my camera later on today.

These don't really do it justice. The color looks way better in natural light.

Very nice piece of work! Congrats:Score-101010:

Thanks guys!

The pics really don't do it justice. The angle of the pics make the blower look like it is mounted crooked. It is not.

The engine was built to run on the boat and not the dyno. It actually continued to make power and boost well past the 5,700 rpm logging point. Peak boost happened at 6,100 RPM. I think it was around 11 lbs. I saw some pretty big hp numbers flashing very quickly at that point. Eddie plans to use 5,500 as a max. That will give me 862hp which is plenty for my XR.

I am very glad that we set it up on the dyno and worked out the kinks. Not really from a bragging rights standpoint (ok, so I do feel pretty good about it) but really from a standpoint of it would be a real pain to totally tune it in the boat while hanging on for dear life. That being said, it will get a final tune on the boat once it gets wet exhaust, etc.

Congrats to you & Eddie both !! Glad to hear everything worked out well.

What are your torque numbers ??? There more important the hp numbers. Just curiouse.

870 fl lbs at 4,900. Plenty to break my drive. 833 lbs starting at 4,000

Yeah that should give the XR a nice test.. Just out of curiosity what does your boat weigh ?

Around 6,500 lbs wet:eek:

Thats actually alittle heavier than I thought it would be..

Forgive any oversight on my part from any previous threads but what kind of performance #'s are you hoping for ?

Hey Bill, glad you were there to see it make the hp. I have a few better pics I'll post.
I actually missed the mark a little on camshaft. I went a little on the big side. I expected the motor to only pull until about 5500, so we stopped data logging at 5700. It actually continued to make both boost and power up to 6200. My laptop was recording the pull with the MEFI software. The boost went up to about 9.5 psi, so power should have been north of 925 hp. It doesn't matter since we aren't going to turn it that high in the boat. Peak torque was a little high, but it was an extremely flat curve, so there again, not a big deal. The difference between peak torque at 4900 and torque at 4200 is less than 20 ft lbs. Again, to much cam. Learned a little on this one. I'll be ready for the next one.
Here are some before pics.

And after

A few more

Last ones

Bill, I will trade you rides in the in the 38 for a ride in Donzi and Donzi jr. Congrats! I know you will enjoy the hell out of it. I hope you have as much fun as I have had and continue to have with the 750's Eddie built for me. You get what you pay for. I would have NEVER dreamed that I would have a set of motors that I could put 10 hrs a weekend on that make that kind of power and all I have to do is change oil. I had nothing but problems until Eddie started building motors for me and my friends. Erics 925's are the same way. 170 hrs and just had the first set of plugs put in them. All I know to tell you is to call and get the limit raised on your BP card....and get some xr gears....your gonna need em.

On another note, I did not realize what you already have for upper and lower on your drive. You are not that far away on the combo.....that is what I started with. Call me tomorrow and we will chat.

I actually saw 945 flash on the dyno screen. I am glad I happened along when things hit. That was a very cool experience for me.

It is a heavy boat. Does well in rough water for a boat its size. The hull is a twin step with a small keel pad.

Performance numbers? Who knows. I wanted a boat that will run along in the 70's and then step smartly to 85. It will do that extremely well. I have heard a number of different stories about the hull with big power. I heard it is good to go to 95. I read a post from a guy that said it was a handfull at 92 and I have heard that Donzi has taken the hull to 105 but it was out of control.

This engine has the power to take the boat to the high 90's.

My plan is to enjoy the boat. If I need more hull a few years down the road, I will keep the engine and try something else.

One thing is for sure, it will require some seat time and dialing in.

I have heard that time and again about Eddie's motors. I have also heard that they made big power. I remember the first one of his motor I heard in person......the sound was unmistakeable!

I will give you a call today. Thanks

It's funny that you say that. I can always pick one of my engines out just by sound. I have had numerous people tell me the same thing. By no means am I bragging and I have no idea why they sound the way they do, but they definetely have a different sound.
Eddie

Bill, are you going to sell your manifolds? Shoot me a # if you are. Ken.

I have considered it. With the new heads some of my clearences are very tight.

I think that they might fit. Will know soon

Glad to see you got that thing worked out, not the same as a whipple huh bud, much harder to dyno with the strange boost curve.
Good luck
Mark

Great looking motor, you got reason to be proud of it. A couple of those would work great in the DCB.

Very different from a Whipple. I haven't been beat up like that by an engine before and I didn't like it. Thanks for all of your help. I really appreciate it. I learned a lot from this one and am better prepared for the next one.
I was blown away that I changed the blower pulley by 3/4" and it didn't really make a difference at all. Then one more 1/8" change and the thing made up to 9 psi boost. There is almost no way to plan ahead for that. Now I know to have a big stack of pulleys for the next one.
Talk to you soon, Eddie.

They would work very well in the DCB!

This is my first engine from Young Performance. I have talked to a number of Eddie's customers in this area. All I have heard that they make big power and are turn key. There is a guy on my lake with a pair of his 925's. Everytime he hits the key they fire up like a set of stock EFI's and idle calmly around the dock. The only difference is that they have a distinct sound and much more power.

You should certainly consider a set.

You shouldn't have any problems reaching your goals & yeah seat time will be the key... That & being kind to your drive..:cool:

Hey Eddie,

Maybe if we get to do mine it will be a bit more kind to you..

I certainly hope so. The couple things I learned are that Procharger doesn't have a clue, and bring a stack of pulleys because there is no rhyme or reason as to what they are going to do. I could easily see where you could have a problem doing a twin since they could wind up with different pulleys of the blower. Mark has had that problem before and I certainly have no problem believing it.

I have always been one of the biggest supporters of Whipple. I think they have an awesome piece and after doing this Procharger motor, I'm an even bigger fan of Whipple. I'm not knocking Procharger, but if I had to build a blower motor from scratch, it would have a Whipple. I will say that the Procharger made some excellent power and seems to be very mild mannered and driveable, but I think the Whipple is just a better all around unit. It is more expensive, but you're getting something for your money.With that being said, I would be glad to do another Procharger motor since I have a much better handle on how they act now. Anyone?????
Eddie