C7 walks C6 from a roll - ZR-1 Net Registry Forums

XfireZ51 · 10-11-2013

GOLDCYLON · 10-11-2013

Love the Rev match. My Youngest son has that in his FRS with the paddle shifters.

mike100 · 10-11-2013

I haven't looked at the specs, but it sure sounds like the 7 spd manual has tighter (closer) ratios than even the z51 c6 gearbox. Even if you do get caught at 3k rpm, the variable cam timing will phase in some low end like crazy.

-=Jeff=- · 10-31-2013

what is with the C7 tail lights,,, what is causing the them to blink int he odd way they do in that clip?

XfireZ51 · 10-31-2013

Quote:

Originally Posted by -=Jeff=-

what is with the C7 tail lights,,, what is causing the them to blink int he odd way they do in that clip?

Video. It's not the lights. You'll see the same thing w vids of other cars w LEDs for taillights.

-=Jeff=- · 10-31-2013

Quote:

Originally Posted by XfireZ51

Video. It's not the lights. You'll see the same thing w vids of other cars w LEDs for taillights.

ok.. for a moment I thought the New C7 had an electrical problem.

I really do like the C7

XfireZ51 · 10-31-2013

Quote:

Originally Posted by -=Jeff=-

ok.. for a moment I thought the New C7 had an electrical problem.

I really do like the C7

Yeah, I'm liking it lots too. Putting down some impressive 1/4mile times even stock. I'm wondering if we'll be seeing a couple of these at the next
Corvette Challenge. They may be tough to beat in bracket racing w rev matching and launch control.

Hog · 10-31-2013

The 7 speed manual has 2 flavours, not much difference from the T6060 6 speeds except that it has a deep cruise only 7th gear for 7 Overdrive gears total. Those high 7th gears require light throttle torque torque which the AFM and VVT and Direct injection supply, even when operating with only 3.1 liters on displacement when in 4 cylinder mode.

2014 Chevrolet Corvette Tremec T6070
1st 2.66
2ng 1.78
3rd 1.30
4th 1.00
5th 0.74
6th 0.50
5th 7th 0:42
R 2.90

2014 Chevrolet Corvette T6070 With Z51 Performance Package
1st 2.97
2nd 2.07
3rd 1.43
4th 1.00
5th 0.71
6th 0.57
7th 0:48
R 2.90

If you get caughtin a situation like being in the wrong gear for a roll race, the VVT will not dial in more torque as you only get more torque at light throttle. See that you would be at WOT, the cam phasers would be in full power mode with full cam advance.

The whole point of Variable Valve Timing is to run a cam to meet you power goals at WOT, while at the same time, providing decent low rpm torque for daily driving.

The LL8 4.2 I-6 in the GMT360 Trailblazer has been using VVT on the exhaust camshaft only since MY2001.
The GEN 5 LT1 is the 1st GM V8 engine to run CVVT (continuous variable valve timing) and AFM(Active Fuel Management) with a manual transmission. Up to 68° of cam phasing is available.

The previous engine to use VVT and AFM was the L99 in Camaro, but that was only with an automatic trans. The manual trans Camaro got the LS3 with its higher than L99 rev limits.

Camshaft:

The Gen 5 LT1 camshaft features 200/207 degrees of duration at .050-inches, .551/.524-inches of lift, and a 116.5-degree lobe separation angle. These specs are quite similar to those found on the LS3 (204/211-degrees of duration, .551/.522-inch lift, 117 LSA) although the design has been optimized for the splayed valves, 1.8-ratio rockers, and the AFM system, and reversed for the new intake and exhaust valve locations.

Source GMHTP

FU · 10-31-2013

Nice......technology moves on.

csavaglio · 11-13-2013

It's just really too bad you have to walk up and look at it before you can get in and drive it fast.......

I know a lot of guys like the way it looks, but it's not my thing. They'll be good bargains in a few years as they filter into the used car markets. I'll be curious what the higher HP option ones do as they come out.

Chris

10-11-2013	#1
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,669	C7 walks C6 from a roll http://youtu.be/RBGX1xTQfCQ __________________ [SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX

10-11-2013	#2
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,153	Re: C7 walks C6 from a roll Love the Rev match. My Youngest son has that in his FRS with the paddle shifters. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

10-11-2013	#3
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,802	Re: C7 walks C6 from a roll I haven't looked at the specs, but it sure sounds like the 7 spd manual has tighter (closer) ratios than even the z51 c6 gearbox. Even if you do get caught at 3k rpm, the variable cam timing will phase in some low end like crazy.

10-31-2013	#4
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,137	Re: C7 walks C6 from a roll what is with the C7 tail lights,,, what is causing the them to blink int he odd way they do in that clip? __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - 3" Magnaflow Bullet cats - LT4 Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978

10-31-2013	#8
Hog Join Date: Jul 2010 Location: Woodstock, Ontario, Canada Posts: 1,275	Re: C7 walks C6 from a roll The 7 speed manual has 2 flavours, not much difference from the T6060 6 speeds except that it has a deep cruise only 7th gear for 7 Overdrive gears total. Those high 7th gears require light throttle torque torque which the AFM and VVT and Direct injection supply, even when operating with only 3.1 liters on displacement when in 4 cylinder mode. 2014 Chevrolet Corvette Tremec T6070 1st 2.66 2ng 1.78 3rd 1.30 4th 1.00 5th 0.74 6th 0.50 5th 7th 0:42 R 2.90 2014 Chevrolet Corvette T6070 With Z51 Performance Package 1st 2.97 2nd 2.07 3rd 1.43 4th 1.00 5th 0.71 6th 0.57 7th 0:48 R 2.90 If you get caughtin a situation like being in the wrong gear for a roll race, the VVT will not dial in more torque as you only get more torque at light throttle. See that you would be at WOT, the cam phasers would be in full power mode with full cam advance. The whole point of Variable Valve Timing is to run a cam to meet you power goals at WOT, while at the same time, providing decent low rpm torque for daily driving. The LL8 4.2 I-6 in the GMT360 Trailblazer has been using VVT on the exhaust camshaft only since MY2001. The GEN 5 LT1 is the 1st GM V8 engine to run CVVT (continuous variable valve timing) and AFM(Active Fuel Management) with a manual transmission. Up to 68° of cam phasing is available. The previous engine to use VVT and AFM was the L99 in Camaro, but that was only with an automatic trans. The manual trans Camaro got the LS3 with its higher than L99 rev limits. *Camshaft:* The Gen 5 LT1 camshaft features 200/207 degrees of duration at .050-inches, .551/.524-inches of lift, and a 116.5-degree lobe separation angle. These specs are quite similar to those found on the LS3 (204/211-degrees of duration, .551/.522-inch lift, 117 LSA) although the design has been optimized for the splayed valves, 1.8-ratio rockers, and the AFM system, and reversed for the new intake and exhaust valve locations. Source GMHTP __________________ peace Paul ZR-1 Net Registry Member #1494 Last edited by Hog; 10-31-2013 at 12:29 PM.

10-31-2013	#9
FU Join Date: Mar 2004 Location: Found Member Posts: 4,346	Re: C7 walks C6 from a roll Nice......technology moves on. __________________ Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237

11-13-2013	#10
csavaglio Join Date: Oct 2013 Location: Colorado Springs, CO Posts: 160	Re: C7 walks C6 from a roll It's just really too bad you have to walk up and look at it before you can get in and drive it fast....... I know a lot of guys like the way it looks, but it's not my thing. They'll be good bargains in a few years as they filter into the used car markets. I'll be curious what the higher HP option ones do as they come out. Chris