Actual weight of mercury 450r

**JPEROG** · 07-12-2019, 02:23 PM

Originally Posted by Double Rigged

That's pretty heavy stuff for a small O/B Cat 34' and under IMO. Looks like i have to wait for a possible 350r one day. I have already started saving!!!!!

You won't be disappointed. I guarantee with whats coming soon you and I will have our personal speed need filled to satisfy our limit. I ordered another set and there should be some stuff ready by the time that I get them.

Joe

**Robby321** · 07-12-2019, 03:39 PM

Damn, this "super size me" has gone wild on everything!

**gearcase** · 07-12-2019, 11:01 PM

22 DCB were twin merc 2.5 280 powered and run very well for river lake boats. My dad had one. The 450 would be good i think. But $$$$.

**Davidlake** · 07-13-2019, 10:10 AM

A 28 Skater with two 505# 300XS's will run between 115 and 118 MPH. With three 300XS's (1515# total motor weight) vs. two 450R's at 1442#. Same hp. What would you all expect performance comparisons to be??

**altamate** · 07-13-2019, 01:41 PM

Doesn’t matter you can’t buy the 300xs anymore.
But I’d guess very similar performance at half the price if you could.

The twin 450s would be more fuel efficient.

**Greg G** · 07-13-2019, 02:32 PM

Originally Posted by WILDMAN

I just took the 450R motor out of the crate. I hung it from my digital scale without cowl and full of oil. Weight was 693 and another 28 for the cowl. TOTAL ACTUAL WEIGHT OF THE 450R IS 721 LBS. Claimed weight is 689.

721 lbs .........

Tubby is as Tubby does I guess.

**Robby321** · 07-13-2019, 02:46 PM

What about the prop weight? Won't run to fast without one!

**Davidlake** · 07-13-2019, 04:40 PM

Originally Posted by Robby321

What about the prop weight? Won't run to fast without one!

Really, You don't really get it do you??. Last time I looked an extra prop added thrust.......

**Robby321** · 07-13-2019, 05:03 PM

Originally Posted by Davidlake

Really, You don't really get it do you??. Last time I looked an extra prop added thrust.......

What planet are you on! Said prop weight on the motor. NOWHERE did Randy say the weight was with a prop on. I give up..........(besides idiot, it was kinda joke, but dense people don't get it...)

**Davidlake** · 07-13-2019, 05:05 PM

OK

**Greg G** · 07-13-2019, 08:38 PM

Originally Posted by WILDMAN

I put another new Mercury 300R on the 21 Liberator. I decided to weigh it with my digital scale. The motor weight INCLUDES the 7 quarts of oil in the crankcase. Motor came in at 528 lbs and cowl was another 33 lbs. TOTAL WEIGHT WITH FLUIDS IS 561 LBS. A little heavier than expected, but still worth the extra weight to me! I figured its 8 gallons of gas heavier than the 300xs, but then again, the full oil tank on a 300xs is 25-30 lbs.

450R 721 lbs
300R 561 lbs

I wonder who has a dyno print for each.

**Todd D** · 07-13-2019, 09:36 PM

Originally Posted by altamate

Doesn’t matter you can’t buy the 300xs anymore.
But I’d guess very similar performance at half the price if you could.

The twin 450s would be more fuel efficient.

fully dressed powerheads are now available so you can still build one. this is how we have setup the super stock race boats with 15" Mad EFI mids.

**XstreamVking** · 07-14-2019, 10:32 AM

You could build 4 300XS engines for the absurd price of one 450 rrrrrr.

**RSWORDS** · 07-14-2019, 11:13 AM

Originally Posted by XstreamVking

You could build 4 300XS engines for the absurd price of one 450 rrrrrr.

Yes you could.

Unfortunately that world isn't what's driving sales. Big centerconsoles are. Same reason Yamaha can have a 1000lb 425hp motor. It's not for us go fast guys