01-29-2018, 09:54 AM | #43 |
Drives: Pre-production ZL1 M6 Join Date: Feb 2016
Location: Sunbelt
Posts: 531
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Guys please. This generation, if it gets any new engine, it will be the LT5. Period.
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01-29-2018, 09:58 AM | #44 |
Drives: 2015 SS 1LE Red Hot, 1970 Chevelle Join Date: Apr 2012
Location: Chino, CA
Posts: 6,989
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Generally speaking, they are taller and wider.
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01-29-2018, 10:06 AM | #45 |
Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,719
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I have the file for the MM sb4 its based on the ls7 block, with there DOHC the with is 30.30" at the widest and that's at the valve covers.
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01-29-2018, 06:00 PM | #46 |
Drives: 2017 SS 1LE Join Date: Feb 2017
Location: Austin
Posts: 266
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I own a 2016 SS 1LE and just tracked it at COTA this weekend (#87 and silver for anyone that was out there in the Advanced group getting passed by a Camaro). After a year of tracking the car, it still blows me away at how well it handles. It punches way above its weight class for the $ and is an absolute blast around town and on long weekend drives. As a former BMW, Porsche 911S and GT4 owner, and, yes, 2016 Viper ACR-X owner - I am sold on Chevy's/Al's 6 Gen Camaro. The Viper is being sold. Its hard to compete with performance tires that only cost $1,300 for a set of four and $280 front brake pads!!! The Camaro is so cheap to run, what an added bonus
So, if Big Al is in charge of a new Z/28, take my money now. Especially if it goes on a big diet via aluminum doors, hood, trunk and roof! |
01-29-2018, 08:16 PM | #47 |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
Location: Connecticut
Posts: 2,343
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02-01-2018, 08:21 PM | #48 |
Drives: ZL1 A10 Join Date: Dec 2017
Location: Wisconsin
Posts: 306
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02-01-2018, 08:52 PM | #49 | |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,325
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Quote:
Ford had to do a spray bore to get a slightly bigger 5.0 liter. You can stroke an engine so much before piston speed and cylinder wear become an issue, piston rock too. DOHC is big, just open a Mustang hood. We already know the spay bore is bigger externally at 5.0 internally. The LT1 can go to 427 OEM. I say Ford's GT40 already has gone to V6 DOHC, I can't see GM needing both DOHC and turbos... It does NOT add up to me. Plus the ZR1 would seem to be faster than the GT40. Once again what market will a mid engine DOHC Vette capture over its current market, to my mind nothing. The Vette would LOSE market share if it went DOHC and or mid-engine and or turbo. IMO of course.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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02-01-2018, 08:55 PM | #50 |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,325
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I find it hard to believe that a DOHC head is near the same size as a OHV. One of the problems with the 4.6 Ford was the port was low and did not flow well, the fix was to raise the port which increased head size, as in the design the cams sit above the valve which sit above the port. It is much easier to get increase port flow with OHV by raising the port.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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02-02-2018, 08:40 AM | #51 | |
Drives: 21 Bronco Join Date: Jun 2012
Location: Carol Stream
Posts: 6,031
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Quote:
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02-02-2018, 01:41 PM | #52 |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,325
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yep and twin turbo, mid engine, and / or DOHC are all pricey. Mean while a plain RWD, front engine OHV Vetter seems to be doing better than a GT40.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
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02-02-2018, 02:10 PM | #53 | |
Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,719
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Quote:
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02-02-2018, 09:36 PM | #54 |
Drives: 2001 Onyx Black/Ebony SS. 427/M6 Join Date: Apr 2016
Location: Sussex, Wi
Posts: 509
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Since the LT1 development started in '06, you'd have to think that there have been developments since then to produce more power or better economy, or any combination of both. Of that, we havent seen any of those potential developments yet. By this, I mean in an NA configuration. I'd like to think that in the last 12 years, there has been enough new technology to come out that would benefit this engine. Also, with the change in administration, have any of the emission regulations been "toned down"/"loosened up"? Were there certain regulations that this engine had to meet during development, that either no longer exist or have been altered in a way that will favor the enthusiast side. Could it be possible to have an NA engine in the 600+ (not saying that's what I'm looking for) range in todays world where ot couldn't have a decade ago?
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02-03-2018, 12:11 PM | #55 | |
Drives: 1LT RS 2.0T 8A HD Join Date: Feb 2016
Location: McHenry, IL
Posts: 239
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Quote:
It would make sense to add port injection to the LT1 (and LGX and LTG), maybe some intake/exhaust changes and GM will call it an LT2 or something with 485 hp/tq... But as far as a Z/28 is concerned, maybe dual injection would open the door for the cancelled LS7 successor to meet emissions and power standards. |
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02-03-2018, 10:50 PM | #56 | |
Drives: SS 6 speed of course Join Date: Jan 2016
Location: Hilo, HI
Posts: 4,325
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Quote:
This engine off the cuff looks to be 2" longer, 3/4" taller and about 3" wider than a LS / LT1. bout. It does say 7.0 liters so it will be a BIG DOHC engine internally.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.
Last edited by oldman; 02-04-2018 at 10:31 AM. |
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