Any fresh/lower hour QCV4 1100s for sale?
03-03-2023 | 07:09 AM
#21
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Joined: Apr 2010
Posts: 415
Likes: 46
From: North Bay, Ontario/Cape Coral, Florida
I came across a listing in Bobcaygeon, Ontario ( yes, the town from The Tragically Hip song), but the price with the drives is enough to make buying new a realistic consideration @ 185 hours on them.
https://www.birchpointmarina.com/inv...-1a0-11196820i
https://www.birchpointmarina.com/inv...-1a0-11196820i
03-03-2023 | 12:18 PM
#22
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Joined: Aug 2010
Posts: 1,384
Likes: 565
Cheech,
When John Force starts running turbos, I will believe the crank HP loss of a blower yields a net loss of total HP.
I've never figured out why Merc started using turbos instead of blowers. And we can clearly see they are not of any real advantage unless top speed is the only factor. Gotta spool them up to get any boost out of them.
And, yes... Blowers look way cooler than turbos. Hands down.
Thanks. Brad.
(937)545-8991
When John Force starts running turbos, I will believe the crank HP loss of a blower yields a net loss of total HP.
I've never figured out why Merc started using turbos instead of blowers. And we can clearly see they are not of any real advantage unless top speed is the only factor. Gotta spool them up to get any boost out of them.
And, yes... Blowers look way cooler than turbos. Hands down.
Thanks. Brad.
(937)545-8991
We're talking boats. 1100 to 1550HP, beyond that for their racing only offerings vs 11,000HP.
Mercury has some sharp minds in house for sure, with a big budget, so I'd bet they explored every avenue before launching the QC4V's.
You can bet data logging power/torque at RPM, fuel consumption, every variable of a supercharged VS a turboed engine at the power levels they offer the QC4V's at then compared the two and chose one over the other.
They just didn't go "yeah lets turbo it just to do it" like some YouTuber on SBE 5.3 LS they got out of a junkyard.
I'm not saying the turbos trump the superchargers.
At certain levels the turbos are more efficient so the power may surpass the superchargers, yeah the torque down low may be higher.
To many variables and conditions on what the use is to downvote one or the other.
They're not very common. But they're out there. Exotic and pricey I'm sure. So the owners club is limited.
Google; Carson Brummett engines, Sterling Performance, and Factory Billet Power.
03-03-2023 | 12:33 PM
#23
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Joined: Jan 2021
Posts: 902
Likes: 408
From: Gothenburg, Sweden
Mercury is more advanced than the custom builders rather than the other way around.
Similarly, advanced European automakers build turbocharged qc4v engines. Detroit’s low-cost efforts are not in the same league.
03-03-2023 | 12:48 PM
#24
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Joined: Jul 2015
Posts: 483
Likes: 399
From: Danville, IN
There is so much turbo technology that has been restricted in drag racing to level the field. Unrestricted on profiles, the turbo cars would make mud of Pro Mod and any other drag race series. The efficiency vs supercharging cannot be argued with a straight face.
All modern production engines are going to turbos for fuel economy and efficient power production....not superchargers.
All modern production engines are going to turbos for fuel economy and efficient power production....not superchargers.
03-03-2023 | 01:16 PM
#25
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Joined: Jul 2008
Posts: 3,748
Likes: 868
From: Delray Beach, FL
Ya'll are going to power numbers but the first thing that entered my mind was the EPA and or CARB as well as sound restrictions. The turbo platform appeases all of these as well as possible for 1000+HP.
03-03-2023 | 05:33 PM
#29
Registered
Joined: Aug 2014
Posts: 1,025
Likes: 225
From: Ohio
Cheech,
When John Force starts running turbos, I will believe the crank HP loss of a blower yields a net loss of total HP.
I've never figured out why Merc started using turbos instead of blowers. And we can clearly see they are not of any real advantage unless top speed is the only factor. Gotta spool them up to get any boost out of them.
And, yes... Blowers look way cooler than turbos. Hands down.
Thanks. Brad.
(937)545-8991
When John Force starts running turbos, I will believe the crank HP loss of a blower yields a net loss of total HP.
I've never figured out why Merc started using turbos instead of blowers. And we can clearly see they are not of any real advantage unless top speed is the only factor. Gotta spool them up to get any boost out of them.
And, yes... Blowers look way cooler than turbos. Hands down.
Thanks. Brad.
(937)545-8991
