Ls3
12-31-2018, 08:39 AM
#1
Intermediate
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Ls3
do any of the ls3 engines cut out cylinders when cursing at highway speed
I thought I saw a post some where that said they did for fuel economy
thanks
I thought I saw a post some where that said they did for fuel economy
thanks
12-31-2018, 09:29 AM
#4
Race Director
You're thinking of the C7.
12-31-2018, 12:20 PM
#7
Melting Slicks
Thanks to technology we can have high horsepower and get 30s for MPG. You'll have the chest beaters that say "oh you should have bought another car if you're worried about that, blah blah, real men do..." but I've built the huge HP engines that got 6 mpg and that **** gets old quick. This was back when 500-600hp was considered "huge" in a street car. Now that's barely competitive when a stock Mustang, Camaro or Base C7 comes off the lot with near that.
Sure I didn't buy my vette because of fuel mileage but it's also nice it gets high 20s for MPG with comfort features.
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449er (12-31-2018)
12-31-2018, 12:27 PM
#8
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2023 C3 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist Unmodified
2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
2017 Corvette of the Year Finalist
2016 C2 of Year
2015 C3 of Year Finalist
CAFE/ corporate average fuel economy regulations have forced manufacturers to get creative in making cars more fuel efficient. Cylinder deactivation is one of the engineered methods to accomplish that. My C7 Z06 has it but it's a 7 speed manual that I never drive in Eco mode, so it never rears it's ugly head.
12-31-2018, 12:33 PM
#10
Race Director
12-31-2018, 12:41 PM
#11
Melting Slicks
You don't have to "see it" as advancement but it is.
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h8snow (01-01-2019)
12-31-2018, 12:42 PM
#12
Race Director
12-31-2018, 02:07 PM
#13
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2021 C6 of the Year Finalist - Modified
1981 Cadillac 8-6-4 had it way back when ....
The V-8-6-4 engine would go down as one of Cadillac’s biggest mistakes ever ... with the 'Cimarron' following close behind.
The V-8-6-4 engine would go down as one of Cadillac’s biggest mistakes ever ... with the 'Cimarron' following close behind.
Last edited by Turbo6TA; 12-31-2018 at 02:07 PM.
12-31-2018, 07:44 PM
#18
Race Director
Thankfully no! My 13GS gets 23-25mpg around 80 mph so that is good enough for me. I also hate the darn auto stop on cars especially when you park since it starts the engine back up when you put it in park just so you can turn it off.