Ramey Racing "750R Demon Time"

[Scream And Fly]

Looks really interesting. I definitely want a closer look!

[skialot2]

I saw this online today. I was just going to post about it. Their website does not say anything about a 750R. but it does have a 650R V8

Mercury 450R Archives - RameyRacing

[Speed Jr.]

[Speed Jr.]

Motec ECU with tuning, Kong Supercharger Kit takes the 450R to 640hp. Add the larger flywheel pulley, injectors, Ramey pipe, tune for E85, and you are in the 700s easy. The aftermarket internals will definitely help spin it up and live a longer life. Amazing stuff.

Jr.

[JPEROG]

You don't need it to be on E-85 or change injectors to make that power. The Kong kit comes with the pulleys that you need and the MoTec ECU allows the rest. Shawn's cylinder head porting, higher compression forged pistons, upgraded rods, rod bolts, cylinder studs, and head gasket are a must if you plan to take advantage of what is capable and turn the motors past 6800 for any length of time.

Motors-(head gaskets) will not live long for long with a big boost (over 13 psi and more then 5 degrees of added timing in the tune). Rod bolts and rods won't live with big RPM (over 6800). Stock FSM will not support what is needed above these perimeters either (stay below these and I pulled 800 hours out of my last 450s). You can simply add the MoTec ECU, large Kong pulley, along with additional air flow to the intake and get to those perimeters on 93 pump fuel. Go beyond that you will need to get the complete Kong package and upgrade the internals.

We have been to these limits and beyond. I was using 700 hp fuel pumps and was still lean last season after we put an aggressive tune in my motors (on stock internals). I went to 1000 hp fuel pumps and had my stock injectors at 80% duty cycle running 70 psi of fuel to meet the AFR needed.

I broke rods, pistons, supercharger, windowed the block, and the propeller became a giant rudder. I have powerheads being built at Shawn's shop.... We have now entered the world of 150 -160 mph outboards, please use your head....

Joe

[mr fun]

OR ,,, a single on a 31' Fountian could become Fun to run around with a few peeps ?

Dialed in right like one of our runabouts now in the 20' range , Allison Action etc

I'm thinkin Keys Island Runner type events

[lake p.a.l.]

You don't need it to be on E-85 or change injectors to make that power. The Kong kit comes with the pulleys that you need and the MoTec ECU allows the rest. Shawn's cylinder head porting, higher compression forged pistons, upgraded rods, rod bolts, cylinder studs, and head gasket are a must if you plan to take advantage of what is capable and turn the motors past 6800 for any length of time.

Motors-(head gaskets) will not live long for long with a big boost (over 13 psi and more then 5 degrees of added timing in the tune). Rod bolts and rods won't live with big RPM (over 6800). Stock FSM will not support what is needed above these perimeters either (stay below these and I pulled 800 hours out of my last 450s). You can simply add the MoTec ECU, large Kong pulley, along with additional air flow to the intake and get to those perimeters on 93 pump fuel. Go beyond that you will need to get the complete Kong package and upgrade the internals.

We have been to these limits and beyond. I was using 700 hp fuel pumps and was still lean last season after we put an aggressive tune in my motors (on stock internals). I went to 1000 hp fuel pumps and had my stock injectors at 80% duty cycle running 70 psi of fuel to meet the AFR needed.

I broke rods, pistons, supercharger, windowed the block, and the propeller became a giant rudder. I have powerheads being built at Shawn's shop.... We have now entered the world of 150 -160 mph outboards, please use your head....

Joe

Truly unbelievable where the outboard technology has gone. Sadly the cost of all the new outboards has gone thru the roof also

[CUDA]

Yeah be careful

This happen a few weeks ago, 39 Ft. , I believe stock motors, the whole transom was ripped off on both sides,

I guess they are going to look into the ECUs for forensic reasons, four were in the boat...

One is still alive, in a 25 mph zone.

https://youtu.be/m6azUO-hHJY

[mr fun]

if I could get 80 out of a 30' single application I'd be tickled , think about it , wasn't long ago 2 250's made 500 hp , now a single 725 ? why not

[JPEROG]

Truly unbelievable where the outboard technology has gone. Sadly the cost of all the new outboards has gone thru the roof also

We are getting twice the horsepower for twice the price. Its the same with everything else: in 2005 a new Z06 was a ground breaking 505 hp beast, with dry sump technology, and we all freaked out. Today a new corvette standard makes almost that and the new "mac-daddy" is AWD and over a 1000 HP. The trucks that we drive today Vs. 20 years ago have done the same "double the power, double the price". Today is the real muscle era but it is expensive.

Joe

[CUDA]

We are getting twice the horsepower for twice the price. Its the same with everything else: in 2005 a new Z06 was a ground breaking 505 hp beast, with dry sump technology, and we all freaked out. Today a new corvette standard makes almost that and the new "mac-daddy" is AWD and over a 1000 HP. The trucks that we drive today Vs. 20 years ago have done the same "double the power, double the price". Today is the real muscle era but it is expensive.

Joe

How true, then this little problem,

https://aier.org/cost-of-living-calc...BoCcnEQAvD_BwE

[Speed Jr.]

You don't need it to be on E-85 or change injectors to make that power. The Kong kit comes with the pulleys that you need and the MoTec ECU allows the rest. Shawn's cylinder head porting, higher compression forged pistons, upgraded rods, rod bolts, cylinder studs, and head gasket are a must if you plan to take advantage of what is capable and turn the motors past 6800 for any length of time.

Motors-(head gaskets) will not live long for long with a big boost (over 13 psi and more then 5 degrees of added timing in the tune). Rod bolts and rods won't live with big RPM (over 6800). Stock FSM will not support what is needed above these perimeters either (stay below these and I pulled 800 hours out of my last 450s). You can simply add the MoTec ECU, large Kong pulley, along with additional air flow to the intake and get to those perimeters on 93 pump fuel. Go beyond that you will need to get the complete Kong package and upgrade the internals.

We have been to these limits and beyond. I was using 700 hp fuel pumps and was still lean last season after we put an aggressive tune in my motors (on stock internals). I went to 1000 hp fuel pumps and had my stock injectors at 80% duty cycle running 70 psi of fuel to meet the AFR needed.

I broke rods, pistons, supercharger, windowed the block, and the propeller became a giant rudder. I have powerheads being built at Shawn's shop.... We have now entered the world of 150 -160 mph outboards, please use your head....

Joe

Agreed, it is possible without ethanol, but it sure is an easy way to get there lol. Agreed on the limits of the FSM. Im at 15 lbs of boost with stock internals but its a small boat for short spirts, not trying to run for tens of miles, only spun it over 7k a few times. Ive spoken to Shawn, love what hes doing. Hope to do a build similar in the near future. Im going to tinker with my 300R build for the STV for drag racing and see what limits it has before changing internals.

The 450R is a nasty platform, still cant believe what it does with just Motec and Kong kit. Hope you keep pushing and I get to learn from you. Thanks again for those photos.

Jr.

[JPEROG]

E-85 still requires fuel pumps, injectors, then the hassle of getting 55 gal drums to your dock. Its a 170% consumption rate over gas so you will be going thru 1 or two drums a day if you run anywhere.

The 300 will have the same limitations. RPM is its path to death. Shawn's pistons add 2pts of compression and along with head porting, APEX cams, and a larger intake should make in the neighborhood of 450 - 470 with plenty of torque to twist hard. I really want to get a set of 300s put together for the 28 and they will also be an incredible STV/LCB motor as well. 35 wheels, 8000, 1.60, 5% (twin application)=157--that should keep up with most guys out there.



Joe

[CUDA]

It sounds like Todd DePhillips Is going to make a 32 ft boat to race Offshore,

I hope all goes well, but It seems like It's a crowded field now. I thought it was smart to race on someone else's $, like he did this year, getting all expenses paid, a lot less pressure

But now he wants to build his own and race his own $$$, you guys know how to spend money, I heard Shaun Torrente spent $$$ on his

Boat design Ideas, constant changes, finally doing a version of a Victory boat that works, winning the world Championship under the Nautical Ventures banner, which Vision Marine owns. The Vision Marines owner has deep pockets. I was talking to him at the IBEX show in Tampa about a battery for my retirement boat. He's very interesting and Amped up.

Just remember, folks, you are approaching lift-off speeds of many large commercial Aircraft ...

[powerabout]

I think they need the look of a stacker
( amazing stock exhaust can support all the extra power?)