11-20-2014, 06:40 PM | #43 | |
Hail to the King baby!
Drives: '19 XT4 2.0T & '22 VW Atlas 2.0T Join Date: Dec 2008
Location: Illinois
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To determine the FE benefit of the 3.6 TT, better off comparing to a car with the LS3 that is about the same weight, that would be the SS Sedan. The 8 speed in the CTS V-sport would be about 1 mpg improvement and if memory serves, the SS is 21 mpg highway and the CTS V-sport is 23. So put the 8 speed in my SS (which turns about 2,000 rpm at 70 mph) and I would expect to get the 1 mpg improvement or at best match the CTS V-sport. Technically, the TT should do better than that as when not under boost it is basically a much smaller displacement engine. LT1 with cylinder deactivation should help, but basically it will likely only offset the HP increase. But we are discussing unicorns as our car has not been revealed or with what powertrain.
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"Speed, it seems to me, provides the one genuinely modern pleasure." - Aldous Huxley
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11-21-2014, 11:51 AM | #44 |
145lb Powerlifter
Drives: 2013 Camaro 2SS RS LS3 Join Date: Jan 2014
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I just hope the Camaro comes stock with 19's and not 20's. I think that'll make a huge difference in performance, and drastically drop prices of aftermarket wheel and tires packages. Taking 40 lbs of rotational mass of the stock cast wheels will be easy to achieve in an affordable manner if 19's are stock. The 20's that come on the Gen 5 are killers - you have to compromise between performance and looks.
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11-21-2014, 02:20 PM | #45 | |
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11-21-2014, 02:26 PM | #46 |
General Motors Aficionado
Drives: 2023 GMC Canyon, 2020 Colorado Join Date: Aug 2008
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From what I understand the larger wheels were a necessity for aesthetics on the 5th gen.
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2023 GMC Canyon Elevation 2020 Chevrolet Colorado W/T Extended Cab (State-issued) |
11-21-2014, 02:40 PM | #47 |
2010 2SS/RS M6
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Location: Auckland, NZ
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It's been my experience that finding tires to fit a 20" wheel are a lot easier to find than the for 19" wheels on the Gen 5.
Typically 18's, 20's, and 22's are easier to find tires for than 19's or 21's for the Gen 5. I wouldn't be surprised if the Gen 6 follows suit.
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2/7/2014: 419 hp, 419 tq
Cosmetic: ZL1 front w/mailslot, painted stripes, powdercoated SS rims, tow hook, and full chrome delete Suspension: Pfadt subframe bushings, Pfadt rear UCA bushings, Z28 Upper control arms, Spohn trailing arms with BMR trailing arm & differential bushings, ZL1 Toe Rods and springs, Prothane radius arm inserts & steering rack bushing, Pfadt Sport front sway, FE4 conversion w/ DS rear sway, Pfadt strut brace Drivetrain: RMCR tune, CAI intake, Kooks headers, hi-flo cats & exhaust, VMAX TB, ZL1 fuel pump, LSR Tri-Ax shifter Bumblebee Racecar Build |
11-21-2014, 09:45 PM | #48 | |
Drives: 14 1SS RS Black (rental) Join Date: Nov 2014
Location: Los Angeles, CA
Posts: 87
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11-22-2014, 03:39 PM | #49 | |
Moderator.ca
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How much does it help? That depends how much smaller & lighter you go, as well as whether or not the same tire diameter is kept. But smaller wheels helping performance? Thats pretty much a given.
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__________________ Originally Posted by FbodFather My sister's dentist's brother's cousin's housekeeper's dog-breeder's nephew sells coffee filters to the company that provides coffee to General Motors...... ........and HE WOULD KNOW!!!!__________________ Camaro Fest sub-forum |
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11-22-2014, 08:19 PM | #50 |
Drives: 2016 Chevrolet Camaro Ss 2dr coupe Join Date: Jul 2014
Location: nowhere near the 2016 camaro
Posts: 72
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Pfft. Dont worry bro our 2016 camaro is faster than that.
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11-22-2014, 10:05 PM | #51 | |
145lb Powerlifter
Drives: 2013 Camaro 2SS RS LS3 Join Date: Jan 2014
Location: Conshohocken, PA
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Going to lighter wheels and tires helps on a twisy track. Going to SMALLER wheels and tires helps on the 1/4 mile big time. Swapping the stock cast 20's to forged 18" wheels can cut up to half a second off your 1/4 mile ET's, all while providing better cornering and increased fuel economy. Cutting them down to 19's not only will be a big performance boost, but it opens up many more wheel and tire options, and are substantially cheaper. Rotary forged wheels are often $50-100 cheaper A PIECE in 19's than 20's! Then factor in a drop of around $50-100 PER TIRE. It's big weight and big money. I bought ZL1 rims for my car to save weight, but I really wish I could've gone to 18" or 19" wheels/tires. That would've been a huge performance boost, but I didn't want to sacrifice the looks. So I compromised - still 30 lbs lighter collectively, but it could've been so, so much more.
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11-22-2014, 10:46 PM | #52 |
Drives: Kia GT Join Date: May 2014
Location: United Kingdom
Posts: 113
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Due to strict regulations, Europe has become the master of the teeny tiny performance engine, and i'm convinced that GM will source their 4-pot from Opel/Vauxhall in Europe. Peugeot have a mass produced 1.6L that pushes nearly 280hp. Mercedes have a 2.0L that pushes nearly 370hp. Kia's Slovakian built 1.6L Turbo can be pushed to nearly 240 with nothing but a remap and a cone filter. If GM can't squeeze 320 from a 4-cylinder then their engineering team needs a slap in the face. They already have a 300hp inline 4, so an extra 20hp isn't asking for much. |
11-22-2014, 11:57 PM | #53 |
I THINK THE V6 HAS A STONG ENGINE BUT THEY MUST DO SOMETHING ABOUT THE WEIGHT
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11-23-2014, 08:58 AM | #54 | |
Hail to the King baby!
Drives: '19 XT4 2.0T & '22 VW Atlas 2.0T Join Date: Dec 2008
Location: Illinois
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Now bump it to 2.3 or 2.5 and you can get 300 to 320. But for 100,000 mile durability a 300 plus 2.0 liter would need some pretty high priced internals. And I wouldn't want the money into the 4 cylinder.
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"Speed, it seems to me, provides the one genuinely modern pleasure." - Aldous Huxley
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