Smaller engine size talk is crazy to me
02-12-2011, 11:32 AM
#21
Melting Slicks
Its because the current engines dont produce as much power per liter as other newer engines like the 5.0 mustang. Moving towards a direct injected, DOHC setup would give the same power with about 10-15% less displacement and 10-15% better fuel economy and less weight.
I think its a good idea for the base/GS models.
I think its a good idea for the base/GS models.
02-12-2011, 12:43 PM
#22
Race Director
I love all the V6s make x amount of power talk. The fact is that a majority of Corvette owners love having a V8 that produces tons of power/torque down low and is a relative simple design. Only 16 valves, not 32 or 40. DI will arrive and the 5.5 L will probably come also. A 5.5 is not much smaller than a 6.2 though or that much lighter. It is not the amount of power/torque produced that is imporant, it is the way it is produced.
The high peformance 6 cylinder engines that everyone mentioned above are not more efficient than the LS3. They are extremely complex as proven by the recent 911T vs ZR1 article. 911T bowed out due to a blown boost hose "buried down deep inside the engine bay".
CAFE ratings don't matter too much for the Vette because they don't sell many Vettes compared to other Chevy models. The more Cruze/Spark/Malibus they sell the better. Currently the C6 gets almost the same mileage as a V6 Malibu though and that is pretty sad (for the Malibu). A little 3.6L V6 or a tiny 4 banger should get better gas mileage in that car. I think the V6 tops out at 27mpg while the 4 banger is around low 30s. That is pitiful. I could set the cruise at 80mph in my 08 LS3 with A6 and 2.73 gears and average at least 28mpg.
The high peformance 6 cylinder engines that everyone mentioned above are not more efficient than the LS3. They are extremely complex as proven by the recent 911T vs ZR1 article. 911T bowed out due to a blown boost hose "buried down deep inside the engine bay".
CAFE ratings don't matter too much for the Vette because they don't sell many Vettes compared to other Chevy models. The more Cruze/Spark/Malibus they sell the better. Currently the C6 gets almost the same mileage as a V6 Malibu though and that is pretty sad (for the Malibu). A little 3.6L V6 or a tiny 4 banger should get better gas mileage in that car. I think the V6 tops out at 27mpg while the 4 banger is around low 30s. That is pitiful. I could set the cruise at 80mph in my 08 LS3 with A6 and 2.73 gears and average at least 28mpg.
02-12-2011, 01:26 PM
#23
Burning Brakes
I love all the V6s make x amount of power talk. The fact is that a majority of Corvette owners love having a V8 that produces tons of power/torque down low and is a relative simple design. Only 16 valves, not 32 or 40. DI will arrive and the 5.5 L will probably come also. A 5.5 is not much smaller than a 6.2 though or that much lighter. It is not the amount of power/torque produced that is imporant, it is the way it is produced.
The high peformance 6 cylinder engines that everyone mentioned above are not more efficient than the LS3. They are extremely complex as proven by the recent 911T vs ZR1 article. 911T bowed out due to a blown boost hose "buried down deep inside the engine bay".
CAFE ratings don't matter too much for the Vette because they don't sell many Vettes compared to other Chevy models. The more Cruze/Spark/Malibus they sell the better. Currently the C6 gets almost the same mileage as a V6 Malibu though and that is pretty sad (for the Malibu). A little 3.6L V6 or a tiny 4 banger should get better gas mileage in that car. I think the V6 tops out at 27mpg while the 4 banger is around low 30s. That is pitiful. I could set the cruise at 80mph in my 08 LS3 with A6 and 2.73 gears and average at least 28mpg.
The high peformance 6 cylinder engines that everyone mentioned above are not more efficient than the LS3. They are extremely complex as proven by the recent 911T vs ZR1 article. 911T bowed out due to a blown boost hose "buried down deep inside the engine bay".
CAFE ratings don't matter too much for the Vette because they don't sell many Vettes compared to other Chevy models. The more Cruze/Spark/Malibus they sell the better. Currently the C6 gets almost the same mileage as a V6 Malibu though and that is pretty sad (for the Malibu). A little 3.6L V6 or a tiny 4 banger should get better gas mileage in that car. I think the V6 tops out at 27mpg while the 4 banger is around low 30s. That is pitiful. I could set the cruise at 80mph in my 08 LS3 with A6 and 2.73 gears and average at least 28mpg.
Jack.
Last edited by BLOWNALKY01; 02-12-2011 at 01:30 PM.
02-12-2011, 01:59 PM
#25
Team Owner
C6R running 5.5L engines.Could be a harbinger of things to come.Who knows? The black guy that works at GM I forget hic name said last year sometime,or the year before that the CORVETTE needs to get a "smaller" appearance because it's no bigger then a 911 but "looks" bigger. The motor will probably be the same or smaller displacement,but I don't care as Long as the HP is there.In the end,I have my 08 AND when the c7's make the debut,I'll decide what I'm going to do then...if anything.
02-12-2011, 03:17 PM
#26
Burning Brakes
C6R running 5.5L engines.Could be a harbinger of things to come.Who knows? The black guy that works at GM I forget hic name said last year sometime,or the year before that the CORVETTE needs to get a "smaller" appearance because it's no bigger then a 911 but "looks" bigger. The motor will probably be the same or smaller displacement,but I don't care as Long as the HP is there.In the end,I have my 08 AND when the c7's make the debut,I'll decide what I'm going to do then...if anything.
Obama?
02-12-2011, 03:52 PM
#27
Le Mans Master
Keep up with cars...Obama Motors (as you guys like to call it) announces 550hp Camaro to do battle with the 525hp Mustang.
http://www.examiner.com/auto-review-...est-camaro-yet
http://www.examiner.com/auto-review-...est-camaro-yet
02-12-2011, 04:18 PM
#29
Melting Slicks
C6R running 5.5L engines.Could be a harbinger of things to come.Who knows? The black guy that works at GM I forget hic name said last year sometime,or the year before that the CORVETTE needs to get a "smaller" appearance because it's no bigger then a 911 but "looks" bigger. The motor will probably be the same or smaller displacement,but I don't care as Long as the HP is there.In the end,I have my 08 AND when the c7's make the debut,I'll decide what I'm going to do then...if anything.
02-12-2011, 04:43 PM
#31
Burning Brakes
02-12-2011, 05:09 PM
#32
Team Owner
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Back the original point on a smaller engine. who cares if its smaller, cubic inches do not automatically equate to more HP. I think a lot of folks forget what happened back in the 70's and have completely lost sight of the fact the SMALL BLOCK 427 currently sitting in the Z06 will absolutely annihilate the original BIG BLOCK 427 of the past. The six cylinders in the Mustang and Camaro's are putting out more HP than the factory 400 C.I. that used to be in the Tans AM's and Firebird, put out more HP than the 455 that were in some of the Buick, Oldsmobile's, and Pontiac's. I am not even going to talk about the 350, 351, 360, 383, 390, 403, 400 small block etc. New technologies and improved fuel management has changed everything. We now have the LS9 putting out over 600 hp and its still a small block from the factory. I just don't get this, like everyone would be upset if you ended up with a 450 hp 5.5 liter engine that gave you at least 26 miles to the gallon. Torque may be off a little but it the car is lighter nothing changes. I guess if that happens with the new C7, life as we know it would just stop......
02-12-2011, 05:58 PM
#33
Drifting
Thread Starter
Keep up with cars...Obama Motors (as you guys like to call it) announces 550hp Camaro to do battle with the 525hp Mustang.
http://www.examiner.com/auto-review-...est-camaro-yet
http://www.examiner.com/auto-review-...est-camaro-yet
02-13-2011, 10:38 AM
#35
Le Mans Master
Corvette is pretty much immune from CAFE as is. We get 16/26 with the 2008 standard and that's without Direct Injection and other fancy new technologies.
You all forget when the Government says 35 MPG by XXXX for CAFE that 35 MPG is measured using the 1970's standard. NOT the 2008 standard (which is the 2nd revision, or 3rd version).
So yours "sticker" MPG and your cars "CAFE" MPG are NOT THE SAME. It's a GIANT loophole.
Also CAFE is a fleet average, so Corvette doesn't have to meet it per say as long as it is offset by Sonic's, Cruze's, Malibu's and Volt's
You all forget when the Government says 35 MPG by XXXX for CAFE that 35 MPG is measured using the 1970's standard. NOT the 2008 standard (which is the 2nd revision, or 3rd version).
So yours "sticker" MPG and your cars "CAFE" MPG are NOT THE SAME. It's a GIANT loophole.
Also CAFE is a fleet average, so Corvette doesn't have to meet it per say as long as it is offset by Sonic's, Cruze's, Malibu's and Volt's
But you can save your breath with some here who just want to politicize the whole thing. I'm also of the opinion that if this was going to put a major burden on car prices and automakers' capabilties, they could easily suspend/modify what are, in essence, "guidelines".
02-13-2011, 11:09 AM
#36
Melting Slicks
But you can save your breath with some here who just want to politicize the whole thing. I'm also of the opinion that if this was going to put a major burden on car prices and automakers' capabilties, they could easily suspend/modify what are, in essence, "guidelines".
02-13-2011, 11:30 AM
#37
Burning Brakes
02-13-2011, 12:00 PM
#38
Race Director
Here is a smaller and probably not better engine example. BMW's 4.4L TT V8 in the 550i. LS3 type numbers (almost) but it has an EPA rating of 15/22. Granted it is pushing a heavier, less aerodynamic sedan. I didn't look at it too closely but I'm pretty sure it has 32 valves.
This engine is a 4 banger size smaller than the LS3 and is definitely more complex and not as efficient. I'm curious to see if there is any weight savings if any at all. I'm about sure it couldn't maintain speed going up a 7% hill at 1500-1700 rpm.
This engine is a 4 banger size smaller than the LS3 and is definitely more complex and not as efficient. I'm curious to see if there is any weight savings if any at all. I'm about sure it couldn't maintain speed going up a 7% hill at 1500-1700 rpm.
02-13-2011, 12:11 PM
#39
Le Mans Master
Here is a smaller and probably not better engine example. BMW's 4.4L TT V8 in the 550i. LS3 type numbers (almost) but it has an EPA rating of 15/22. Granted it is pushing a heavier, less aerodynamic sedan. I didn't look at it too closely but I'm pretty sure it has 32 valves.
This engine is a 4 banger size smaller than the LS3 and is definitely more complex and not as efficient. I'm curious to see if there is any weight savings if any at all. I'm about sure it couldn't maintain speed going up a 7% hill at 1500-1700 rpm.
This engine is a 4 banger size smaller than the LS3 and is definitely more complex and not as efficient. I'm curious to see if there is any weight savings if any at all. I'm about sure it couldn't maintain speed going up a 7% hill at 1500-1700 rpm.
02-13-2011, 12:28 PM
#40
Drifting
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I don't believe a word of it. Corvettes are Pushrod V8s. Always will be. No DOHC 5-point-oh blaa blaa blaa. As long as there's a market for the Corvette, they'll continue to make THE CORVETTE.