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10-24-2012
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#1 |
 Join Date: May 2011
Location: Sydney, Australia
Posts: 2,479
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With the LS platform dying will the LT5 come back to life?
2014 Corvette Powertrain - Preliminary Specificiations
As of 9:30am 10-24-2012: (Click on the images for a larger view) 2014 LT1 Smallblock Specifications: Engine type: 90-degree V-8 with overhead valves; continuous VVT Displacement: 6.2L (376 cubic inches) Bore x Stroke (in / mm): 4.06 x 3.62 / 103.25 x 92 Cylinder block: cast aluminum with nodular main caps Main bearing fasteners: six, including two cross-bolts per cap Crankshaft: forged steel Connecting rods: powder metal, 6.125 inches in length Pistons: eutectic aluminum alloy Compression ratio: 11.5:1 Cylinder heads: 319-T7 cast aluminum with 59.02cc combustion chambers Valve angles (degrees): 12.5 intake, 12 exhaust Intake valves: 2.13 inches (54mm) hollow Exhaust valves: 1.59 inches (40.4mm) hollow sodium Camshaft: Hydraulic-type with tri-lobe for fuel-pump drive Camshaft lift: 0.551-inch (14mm) intake / 0.524-inch (13.3mm) exhaust Camshaft duration: 200-degrees intake / 207-degrees exhaust (at 0.050-inch) Lobe separation angle: 116.5 degrees Fuel delivery: direct injection Intake manifold: “runners in a box” design; composite construction Throttle: 87mm electronically controlled throttle body Ignition: 58X with individual coil-on-plug and iridium-tip spark plugs Horsepower / kW: 450 / 335 (estimated) Torque – lb.-ft. / Nm: 450 / 610 (estimated) Max. engine speed 6,600 rpm (fuel cutoff) New 6.2L LT1 Link http://corvetteactioncenter.com/spec...owertrain.html
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Robert J. DeMarco [SIGPIC][/SIGPIC] [COLOR=blue]G[/COLOR][COLOR=red]rand[/COLOR] [COLOR=blue]S[/COLOR][COLOR=red]port[/COLOR] Registry Lifetime Member NCM Lifetime Member #2655 Pacecar Registry Member [COLOR=red]ZOOM Charter Member - ZR-1 Owners of Michigan[/COLOR] [COLOR=plum][I]ZR-1[/I] Registry member since 2012 [/COLOR] [COLOR=black]1990 LPE "368" Aerobody ZR-1, Last ZR-1 built by John[/COLOR] 1991 Callaway Aerobody ZR-1, DRM 500 1991 Shinoda Aerobody Spyder, 1998 Pace Car |
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10-24-2012
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#2 |
  
Join Date: Jun 2005
Location: pittsburgh
Posts: 4,632
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Re: With the LS platform dying will the LT5 come back to life?
hope not.
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It's not the car, it's the people - Doug Johnson 90 r/r "KEYS ON" nick named "T.L.B" |
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10-24-2012
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#3 |
 Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: With the LS platform dying will the LT5 come back to life?
I'm disappointed that they chose not to persue the cam-in-cam VVT. Instead they are just phasing a single cam with no way to change overlap. I think some other entity holds patent on that and GM nixed it due to lic costs (just my theory).
I'm not against a high tech 2 valve engine at all, but 3 of my last newer cars all had proper VVT and I'm telling you, I do not care to own an engine type that does not use this tech. It is obvious at this point that GM isn't going to make large displacement 32v v8's anytime soon. |
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10-28-2012
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#4 |
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Join Date: Jul 2005
Location: Jupiter, Fl.
Posts: 815
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Re: With the LS platform dying will the LT5 come back to life?
I think the premise of your question is wrong. How is the LS platform dying? It seems like normal development is proceeding logically. How you relate the ancient design of the LT5 to this is not clear.
The old LT5 is hampered by a severe weight penalty, along with the packaging problems of a four cam motor. The old screamer is much beloved by all us C4 ZR-1 nuts, but as far as development goes, it's contributions were all made in the 20th Century. BTW, the long list of specs provided don't seem to include one of the most important ones, weight. It made the power, but size and weight is what killed the LT5. |
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10-28-2012
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#5 |
Join Date: Mar 2004
Location: Found Member
Posts: 4,346
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Re: With the LS platform dying will the LT5 come back to life?
With the LS platform dying will the LT5 come back to life?
Not a chance. The LT5 is overweight and overdone, stick a fork in it.
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Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237 |
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10-29-2012
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#6 | |
 
Join Date: Nov 2007
Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri
Posts: 6,493
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Re: With the LS platform dying will the LT5 come back to life?
Quote:
NEVER thought i'd be singin the praises of FOMOCO!
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Good carz, good food, good friendz = the best of timez! 90 #1202 "FBI" top end ported & relieved Cam timing by "Pete the Greek" Sans secondaries Chip & dyno tuning by Haibeck Automotive SW headers, X-pipe, MF muffs Former Secretary, ZR-1 Net Registry |
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10-29-2012
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#7 | |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: With the LS platform dying will the LT5 come back to life?
Quote:
Welcome Back Paul!!! (sorry to be off topic)
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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10-30-2012
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#8 | |
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Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
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Re: With the LS platform dying will the LT5 come back to life?
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10-30-2012
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#9 | |
Join Date: Dec 2004
Location: Jacksonville, FL USA
Posts: 4,645
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Re: With the LS platform dying will the LT5 come back to life?
Quote:
 Tom  sorry for the Hi-jack Hey are all you guys in FBI land okay? Did you get any fall out from this storm?
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1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member |
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Hybrid Mode
