Skater30

You could be right! And yes, that would be a substantial weight savings for the smaller boats. My complete power/drive package (588/trans/ASD #7) weighs in just under 1,200 pounds. When I started my build, I first looked into having Mike build me a set of large ci small blocks, but the 200 pound per engine savings wasn't worth having to run high compression/high rpm motors to equal the horsepower of my pump gas/6,500 rpm 588s. IF this weight of 810 pounds is for the complete power/drive package, Ilmor has themselves a great new product for the under 30' boat market.........

IlmorGirl

The weight of the MV8 570 is 810lbs with dress, headers, mounts, bellhousing, and fluids. This does not include a transom/drive.

wrinkleface

U tell'm J!!!!!!!!!

Skater30

So please explain to me how Ilmor is claiming to be 400 pounds lighter than a comparable BBC? Again, my 800 hp 588 ci Sterlings are 855 pounds with the same equipment. That's only a difference of 45 pounds, not 400 (not to mention the 230 hp difference on 91 octane pump gas!).

Raylar

I guess whats got us all scratching our heads is how does 2+2=4 Eh! Well , I'm stumped!

Best Confused Regards,
Ray @ Raylar

tabajay

I'd really like to see this in a Tuff 28.

rmbuilder

Chuck,

Good catch! Interesting observation on the intake restrictor. In 2008 (LeMans & ALMS) trim the LS 7.0 liter engines were mandated (2) 31.2mm orifices, for a total intake area of 1529 mm². That’s 2.370 in² total (the approximate size of a half dollar each) of inlet area feeding a 427 cid engine. At that level of restriction the engine made peak TQ @ 4400 RPM, went into choke @ 4800 RPM, peak HP @ 5200, and carried to 6200 RPM. It made 580bhp @ 5200 RPM on E-10 and 590 bhp on E-85. Quite an achievement for an engine restricted to that degree.
Bob

ILMORdude

The stated weight is the engine only BUT is full of fluids ready to be dropped in. I believe other stated weights for some of the competition includes the whole package, WE DO NOT. This is a closed cooled engine with CMI headers. There is a good amount of fluids included in that number.

Should have some more info soon so stay tuned!!

Raylar

I forgot that this new LSX based engine uses the tall deck LSX IRON block and with all accessories, freshwater cooling and headers it indeed probably weighs about 800lbs. with a transom assy and drive it should still come in about 1025lbs and as such should be about 200 pounds or so under a HP565 that Mercury Racing is now offering. In a twin installation that could translate to 400+ pounds and in a 28-36 ft performance hull that could be a nice plus as well as the added rpms this engine will run at. In any event I know Ilmor will get the real total facts and data out for OSO'ers and I am sure this will be a great performer in the right applications.

Best Regards,
Ray @ Raylar

A.O. Razor

Ray. I'm pretty sure the published weight of 1201 lbs. of the 565 package is without headers and no fluids in either drive or motor.If so, wouldn't the MV8-570 be closer to 250-300 lbs. lighter?

Btw. is the weight you calculated in a previous post, the weight of your 550 LS alu motor w/o manifolds?

Thanks