Hey BIG Daddy can you post the dyno & egts ? that would be very informative for OSOrs especially Inertia factor,BSFC Lb/HPHR thnx in advance

I don't have BSFC numbers. The dyno isn't set up for a return style fuel system yet. I'm working on it, just haven't had a chance to get it done.

Is that the boat that was at Lake Cumberland??? I think I have a pic?

Did the customer not Merc power or was it price??

All I can say is WOW! That boat is insane!

Just curious though, 130+ with 1075's! That is blazing for a V... 1200's! I can't even imagine!

What was the reason for the engine swap?

Beautiful boat!!!

Nice project Eddie and nice numbers.

Can you show us the lower side of the dyno sheet
from 1,500 rpm's to 5,000 ?


Thanks
Jon

Very interesting JON theres another brutha that put these on and lost top end speed but gained 100 hp at mid range

That is the boat. I had started building these engines for his Top Gun that he had before he bought the Skater. We were going to set them up around 900-950, since it was a Bravo boat. Just as I was going to start assembling them, he struck a deal on this boat and traded in the Cig. He had already paid for the engines, so he decided to up the hp and put them in this. That is the real reason he bought the Skater in the first place. He already had the engines handled.
I built a set of 598's with Quadrotor Whipples (1193 hp) for his last boat.
Eddie

Thanks Jon. We started the pull at 4000 rpm. The dyno would not hold it any lower. The brake temp was over 160 deg and climbing quickly. It is a Stuska brake and they say not to run it over 130 deg. I have only dynoed a few engines at this shop and this is by far the biggest. The brake should have no problem holding it, but something may be wrong with it. It should not heat up that fast. It is rated to hold 2000 ft lbs and like 1600 hp.

Runninghot,
These blowers do not make what the quadrotors made in the midrange. I compared the numbers at 4500 and 5000 rpm and the quadrotor beat it by 100 hp. When the 2.3 quad was running out of steam, this one kept pulling. But, it is larger (5 liter compared to 4.6 liter) The 5 liter also took longer to build boost, but it kept going when the 2.3 quad stopped. It basically moved the power up 500 rpm. I had to spin it a little harder to make the same power as the 2.3 quad. I have a sheet from an engine that I did with a 2.3 quad that made 1330 at 6100 RPM, whereas the 5 liter took 6600 rpm to make the same power at roughly the same boost. But, that was in a quick sweep. In the boat, I expect it to build boost lower since it won't be accelerating as fast as it did on the dyno.
Eddie

Nice work Eddie,
I heard Bruce had purchased a Skater. I assumed it was a cat.
I love the 399V, however. The Spiderman boat was really a great running Super V, and I remember seeing this one at the Louisville show. Nice paint, love the F-16 canopies, and I am sure it will fly with your motors.
Looking forward to seeing you guys on the lake with it. When are you going to test?
Best Regards,
Steve

Thanks,...............NO disrespect to you, just amazed how many people cannot dyno the low side. Guys over here dyno it all including the diesel's on the very low side.

But I was accused of defying the laws of physic's too.

Cool project though, thanks for sharing your time with us.

Jon