New GM Corvette engine with Mercruiser designed heads

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Shredhook said:
no more V8 trucks for RAM..... pretty lame if you ask me
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Only in the 1500s. And with the changes in Stellantis leadership it wouldn't surprise me if they brought it back. The 5.7 Hemi was supposed to be gone from everything but they just announced another year of production in the Durango.

FWIW, I've rented a handful of vehicles with the 3.0 Hurricane, and it is a VERY impressive engine. I haven't heard of any issues with it yet. Honestly if I could swap the Hemi in my Grand Cherokee for a Hurricane I would. Would be interesting to see that in a boat too, but I think other than tow boats and BIG cruisers, inboard engines are on life support.
 
svivian said:
Toyota changing their tundras from their standard V8 to a twin turbo V6 went really well.......


im being sarcastic.
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BMW has been successfully selling twin turbo small(er) displacement engines for years in their performance cars. And while the EcoBoost has some issues, from what I have seen more than 75% of their F150s are sold with either a 2.7 or 3.5. I suggest everyone drives a smaller displacement turbo engine before they blindly pass judgment. The performance is simply better than the bigger engines they replace.

And Toyota has been having more recall/quality problems lately than just the change from the 5.7 (which was outdated, had TERRIBLE MPG, and lacked the power to compete with the top engines of their competitors).
 
Ryan said:
BMW has been successfully selling twin turbo small(er) displacement engines for years in their performance cars. And while the EcoBoost has some issues, from what I have seen more than 75% of their F150s are sold with either a 2.7 or 3.5. I suggest everyone drives a smaller displacement turbo engine before they blindly pass judgment. The performance is simply better than the bigger engines they replace.

And Toyota has been having more recall/quality problems lately than just the change from the 5.7 (which was outdated, had TERRIBLE MPG, and lacked the power to compete with the top engines of their competitors).
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I have driven them, and while the performance is impressive(torgue/tow capacity). The cost of repair also goes up when something goes wrong like a turbo going out. The fuel mileage savings is not near enough to be worth the squeeze in my opinion.
 
svivian said:
I have driven them, and while the performance is impressive(torgue/tow capacity). The cost of repair also goes up when something goes wrong like a turbo going out. The fuel mileage savings is not near enough to be worth the squeeze in my opinion.
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I own one turbo, on a 2006 Duramax in a lumbering 5500. Works great. I really like the 6.0 vortec otherwise. Absolutely bulletproof, and will get moderate economy for 250k minimum. Lighter? The 5.3 in my wife’s suburban gets about 20 on the highway and will happily light off the tires. Very durable, very easy repair if it does blow. I don’t want to come across as a Luddite, but some of the advances have come at too great a cost. A buddy absolutely loved his eco boost. Bragged about it endlessly, until it ate a turbo at 65k. That was a pricy enough repair to leave a guy with a Bronco tattoo mad at Ford.
 
VikingRanch said:
I own one turbo, on a 2006 Duramax in a lumbering 5500. Works great. I really like the 6.0 vortec otherwise. Absolutely bulletproof, and will get moderate economy for 250k minimum. Lighter? The 5.3 in my wife’s suburban gets about 20 on the highway and will happily light off the tires. Very durable, very easy repair if it does blow. I don’t want to come across as a Luddite, but some of the advances have come at too great a cost. A buddy absolutely loved his eco boost. Bragged about it endlessly, until it ate a turbo at 65k. That was a pricy enough repair to leave a guy with a Bronco tattoo mad at Ford.
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I too have a Duramax and I replaced my Turbo on my own at 200k. Not an easy job, not meant to be taken apart in the truck if you ask me but I got through it and it tows my 10,000 lb boats just fine. I also like my 6.0 Vortec engines, I have three of them in different vehicles. I've never had a bit of trouble with them and if I did a new engine is easy and cheap to come by.

I like the technical challenge and successes I see in the smaller displacement motors but I agree all that technology can come at a price and all of it may not last but a stand out winner should emerge, it takes time.

Over engineering is also plaguing us these days, especially European cars. Do we really need a variable vein computer controlled AC compressor Mercedes? I mean sure you could get 1/10 of 1% better mileage and it costs 5x the price. And when it breaks in a few years fixing it might still be the domain of the dealer and it will likely cost more than the car is worth. What is wrong with an on/off switch and a thermostat? That's the stuff of nightmares and not every manufacturer comes up with good product, some new engines are consuming lots of oil right out of the dealer day one and customers are being told it's normal.( at least until the warranty period is over)

Sometime old technology is best. My HB is powered by two unglamorous inboard Mercury 3.0 4 bangers; Cheap, reliable, small, good on gas and get the job done. When they die I'd be tempted to convert over to outboards but a new long block is under 3k so probably not
 
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Ryan said:
Only in the 1500s. And with the changes in Stellantis leadership it wouldn't surprise me if they brought it back. The 5.7 Hemi was supposed to be gone from everything but they just announced another year of production in the Durango.

FWIW, I've rented a handful of vehicles with the 3.0 Hurricane, and it is a VERY impressive engine. I haven't heard of any issues with it yet. Honestly if I could swap the Hemi in my Grand Cherokee for a Hurricane I would. Would be interesting to see that in a boat too, but I think other than tow boats and BIG cruisers, inboard engines are on life support.
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I personally hate the 5.7 Hemi in my Durango. It performs well, but it has well documented issues with heat management that cause it to break exhaust manifold bolts, resulting in a persistent ticking noise that can't be solved without replacing all the broken bolts, which is a $2,500 job. Additionally, changing the plugs is a bear since the location makes it hard to get a socket on top of each plug.

The new turbos are far more reliable than the old turbos. Ecoboost now has over a decade of proven performance. It's really impressive that F-150s can tow as much as they can with a boosted V6. Sure the gas mileage degrades a lot more when towing than a V8 would, but how much are you towing anyway? Wouldn't you rather have your 90% driving case get 2x the mileage and then equal mileage when towing?

Also, regarding the issues with batteries and rare earth minerals, the batteries in electric cars are recyclable and will allow significant reductions in rare earth mineral mining as things continue to develop. As was mentioned earlier, the key benefit with electrification is that combustion efficiency at a power plant is vastly better than in a passenger vehicle and emission controls are vastly better, plus new power generation is moving toward more clean sources of energy. That said, electric will likely not work well for recreational boats and ATVs.
 
nzaugg said:
That said, electric will likely not work well for recreational boats and ATVs.
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Great post, and you are correct with current (pun intended) technology......but imagine electric motors connected to a limitless power source....ZPT. I know it sounds woo woo.....now.....but maybe not over the next 50 years? :unsure:

So, no mid lake 'fueling' station required......just a mid lake Ice Cream/Root Beer Float station? ;)
 
I think we have to press all the frontiers of technology including electric propulsion of all kinds. I also think some of the pushback is over mandates to force the market; A market doesn't need force if folks want the product. No one was forced to run out and buy a VCR or DVD player, we all ran out and bought them because we wanted to. That seems to be where some of the rub is, if it were just private companies creating new options I think they would be more well received, IDK.

I dream of building another houseboat, I may have one left in me. I'd like to get an old rental with the two outboards and re-do it as rebuilding boats has been my MO. I'd like to refit it with a third outboard in the center that is electric. I'd like 10,000 watts of panels up top, a vast battery bank under the engine hold hatches and just enough horsepower to push me along at 2-4 mph on a calm day. There is my hybrid electric houseboat. I'd like to retire and spend summers on the lake as a docent (to be legal) and put around without burning fuel. I'd still have both gas motors to get moving somewhere faster, for weathering storm's and for maneuvering.

All of this technology just keeps getting better and cheaper. Used industrial solar panels are dirt cheap, lead acid batteries are also abundant and cheap as are older inverters that do not charge the latest lithium batteries. Years ago this would all have been an expensive endeavor or a fantasy but not now, we really do live in the future.
 
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