450r/500r

[Capt.Insane-o]

a powerhead is not an outboard motor
maybe they could sell a dfi kit and get epa credits?

**** the epa.

[MODVP22]

The same way you can order a filthy motor from gm ford or chizzler hi perf. Bless their hearts.

Cuz Pres. Trump said so ............sorry, I had to-couldn't help myself

[racer]

One reason the auto industry can sell seperate dirty engines is that they have emissions credits. Mercury uses this to sell 2 star engines in Ca. I agree when it's not a complete engine rules do change to some extent. Adding a mid section may or may not change things. Just curious what CRT may or may not have done. I would think if sold in parts it's a non issue. They look great would love to see some dyno numbers, if I had not retired would have offered use of mine.

[Davidlake]

I think that non-compliant engines or vehicles for that matter can be sold is that they are listed as "closed circuit" use only and not intended for street or recreational use. Just look at a 2 stroke dirt bike with stickers all over the fenders! CRT motors should meet that requirement. hopefully with Scott Pruitt as head of the EPA cap and trade bull **** will stop.

[Chaz]

600HP (supposedly) @ $55,000.00

Huhhmmm , More fake news from the left ... coast ...

[powerabout]

I think that non-compliant engines or vehicles for that matter can be sold is that they are listed as "closed circuit" use only and not intended for street or recreational use. Just look at a 2 stroke dirt bike with stickers all over the fenders! CRT motors should meet that requirement. hopefully with Scott Pruitt as head of the EPA cap and trade bull **** will stop.

What the epa is looking for is cant be used on normal road or as recreational engine.

[Chaz]

"""""""""""""""" I just got off the plane from Mercury racing """"""""""""""""""""""""""

I sold them my Trump EPA approved 4.0L V-4 . They said if they didn't have to wty them for 10 years they would sell them for $4995.00 But since they have to cover those that could break an anvil with a rubber mallet the price will be $37,500.00
Coming to a dealer near you in 2019 ...

[Davidlake]

Honda CR 500 cylinders? What do you do with this???

[AZMIDLYF]

Chaz, aside from the price, girth of these new 4 strokes, do you see an upside to them?

[FMP]

Duhwhaaaaat

[Chaz]

Chaz, aside from the price, girth of these new 4 strokes, do you see an upside to them?

But , but , but , I was just starting to have some fun ..

I was a big fan of Cotton Perry's H/MP Nova back in the early 80's . Maybe it was the sound it made compared to the high winding small inch V-8's it raced against . Or maybe it was because he was the underdog , but I remember that being the fastest straight 6 I had ever seen . Especially since the aftermarket ( other than Clifford Research ) never really made speed parts for them.

Six in a row like the Verado use's 7 main bearings . The cranks are balanced unto themselves , meaning they have perfect primary balance and no bobweight is needed .
The head is typical modern four valve , excellent port layout , pentroof (Keith Duckworth) chamber and shim + bucket (Ferrari) valve train .
I would rather see the cam chain in the middle rather than drive the cam's from one end . But it wouldn't be a problem until someone puts a big stick with a real heavy valve spring in there and spun it to the moon.
Plenty of meat around the liners for big sleeves and enough room in the crankcase for at least another .125 to .187 stroke .
I didn't like that the bottom of the sump (dry oil pan ) oil pump and it's drive chain as well as the remote oil tank and exhaust were all part of the engine adapter plate .
Before Rick George passed away , he had us working on a 15" mid that was to use a 300xs clamp bracket , which was going to take making a billet adapter plate with built in upper mount and a glass or carbon lower cowl. The way the Verado is made is that the lower cowling is part of the mount / trim system .
Getting rid of that stock set-up was between 100 - 150 pounds .
The exhaust system is very small and is kinked up pretty bad . I'm really surprised that they can blow 400 hp thru there . We had a pretty nice stainless boom tube partially done before the plug got pulled .
Honestly , I have no doubt that with just the intake and exhaust tract freed up , and maybe a piggy-back box to feed the ECM some false triggers that it could easily make another 75 -100 horses . Another 5 -10 lbs of boost and something like E-85 I'm sure you could stack another 100 on top of that .

I got that MIDLife thing goin on too ... so can I go back to playing now ... ?

[Chaz]

Honda CR 500 cylinders? What do you do with this???

David , Yes it's CR top end stuff . A guy is building twins and 4 cylinder models for motorcycle use ... It's actually becoming pretty popular using individual removable cylinders ...

Here's another version . I'm not really fond of separate cranks , but the 500cc F-1 bikes were like that for awhile .



Snow mobile ..



And the MAD EFI that would have been the king of outboards ....

[AZMIDLYF]

As usual Chaz, you are a wealth of knowledge. Sounds like a lot of upside but quite a bit of repackaging involved, especially for the smaller boating segment.

[H2OPERF]

Wayne was on track with that build, I talked to him several times,never met him but wish i had. , well i wanted BRP to be on top so i was there last week ans sold them mine LOL, cobbled tz 750's.

[conmax]

Considering how long it took Mercury to go from 350 to 400, it could be years before we see more. I thought the 450-500 was bogus from the onset. It came out just a couple of weeks after I asked a guy from Mercury racing about the CNC props and what the changes for 2017 were. He said only the 3 yr warranty. Have no idea who Dale's inside sources were, but their credibility is suspect.

I have no idea what is will take for Merc to go from 400 to 500, although it is likely to be a lot more than a boost increase. They did a lot of work on the intake track and intercooler to get to 400, and its likely it will take more than that to get to 500. My uniformed guess is that it would require a larger displacement SC, larger intake valves, cam and other typical hot rodder tricks to get to that level. The challenge is not the power level, but how to offer a 3 year warranty that some customers will choose to run at 7000 rpm+ for long periods.