How fast has anyone driven a C6?

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Apr 12, 2006 | 07:09 PM

#41

2vettes

Le Mans Master

Joined: Apr 2005

Posts: 6,277

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From: Boston's south shore MA

Quote:

Originally Posted by vette-oholic

It has been discussed many times that top speed is achieved in 5th gear....

That's what I told, too. I don't have any place to try that level of triple digit driving, so I have no bragging rights.

Apr 12, 2006 | 11:54 PM

#42

promod69camaro

Instructor

Joined: Dec 2005

Posts: 190

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From: Dallas Texas

Quote:

Originally Posted by Gearhead Jim

If top speed for a M6 Corvette is truely 186 mph, I'm guessing that the A6 would top out at about 180. You lose about 20 hp more due to the automatic, plus you loose about another 20 hp because the engine can only get up to 5,000 rpm in 5th gear. Taken together, that's 40 hp additional loss, or 10%. Since drag increases as the square of the speed, a 10% power reduction should produce a slightly more than 3% speed reduction. 3% of 186 = 6 mph.

Other folks are requested to calculate and post here...

I don't see why you state we loose HP for having an automatic. With a lock up torque converter, there is no torque converter losses, and the internal clutches are locked up, so where would the losses for the automatic be? In drag racing, we are now using automatics with lock up torque converters. The key is the locking torque converter.

Apr 13, 2006 | 12:21 AM

#43

jayp2423

Intermediate

Joined: Jan 2006

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183 in 5th...MN6 non Z51 on a local highway @ around 3 AM.

Apr 13, 2006 | 04:14 AM

#44

Astronomer

Pro

Joined: Apr 2006

Posts: 745

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From: Denver Colorado

Quote:

Originally Posted by als2052

The question should really be, "How fast has anyone safely driven a C6?

Two miles an hour as I enter my garage. :-)

Apr 13, 2006 | 06:22 AM

#45

Turbooo2u

Le Mans Master

Joined: Sep 2004

Posts: 6,714

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From: Providence RI

Quote:

Originally Posted by jayp2423

183 in 5th...MN6 non Z51 on a local highway @ around 3 AM.

How close to redline was this??

Apr 13, 2006 | 09:34 AM

#46

dollarbill

Melting Slicks

Joined: Nov 2003

Posts: 2,312

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From: Ridgeland MS

St. Jude Donor '06-'07-'08-'09-'10-'11

173 on an German Autobahn with a little room left on my '05 Z51 MN6. It was very stable and I was able to change lanes without feeling light. My buddies '04 Z06 had the front fenders swell out due to the air pressure from the brake cooling ducts (I think) and his felt a little light on the front-end. I believe that it will get to 186 without a problem.

Bill

Apr 13, 2006 | 09:55 AM

#47

Irv

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Joined: Jul 2005

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From: CA

Mach .855

I was looking at a picture of mine while flying in a 747.

Apr 13, 2006 | 11:15 AM

#48

SpinMonster

Tech Contributor

Joined: Mar 2003

Posts: 12,094

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From: Colorado Springs, CO

St. Jude Donor '08-'09-'10-'11

I guess the HPtuners tab is wrong stating the speed limiter is set to 186. Maybe the ones that did better had a tune and moved it up.

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Apr 13, 2006 | 11:22 AM

#49

Zig

Safety Car

Joined: Dec 2004

Posts: 3,565

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From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)

Quote:

Originally Posted by SpinMonster

I guess the HPtuners tab is wrong stating the speed limiter is set to 186. Maybe the ones that did better had a tune and moved it up.

hhmm.. good point... that's also why i was interested in how the results were obtained.

Apr 13, 2006 | 11:49 AM

#50

BIGGGIE

Melting Slicks

Joined: Mar 2005

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From: Palm beach Florida

St. Jude Donor '05-'06-'07-'08

Mine was Removed with my Tune...all i remmber is seeing the 190 on the Heads up and i let off...

Apr 13, 2006 | 11:51 AM

#51

C6 DVL

Team Owner

Joined: May 2002

Posts: 26,900

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From: Bann Camp & N.Y.C.

St. Jude Donor '08

152 on a bridge.

http://videos.streetfire.net/search/...421977993A.htm

picture is worth 1,000 words, but videos are priceless

Apr 13, 2006 | 12:37 PM

#52

Burnt C6

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From: Texas Where God intended me to be.

2023 Corvette of the Year Finalist - Unmodified

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St. Jude Donor '08 thru '11,'22 thru '26

164 on the great roads of Texas

Apr 13, 2006 | 12:39 PM

#53

C6 DVL

Team Owner

Joined: May 2002

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From: Bann Camp & N.Y.C.

St. Jude Donor '08

Quote:

Originally Posted by Burnt C6

164 on the great roads of Texas

I just came back from Vegas, the roads out there, you can do 120 all day long

Apr 13, 2006 | 01:15 PM

#54

Gearhead Jim

Team Owner

Joined: Sep 2000

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From: Far NW 'burbs of Chicago

St. Jude Donor '13

promod69camaro-
That's an interesting point, I can't give a positive answer but the few dyno runs I have seen show the A6 making less HP at the wheels than the MN6. Since they run under WOT, usually all the way to redline, the extra HP is going somewhere. Whether the TC is locked or not isn't the complete issue, what counts is HP delivered to the rear wheels.

Apr 14, 2006 | 02:28 PM

#55

ricatthebeach

Drifting

Joined: May 2005

Posts: 1,659

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From: Las Vegas Location: Earth

Quote:

Originally Posted by C6400hp

I'm not sure if it will do 186 or not. It will do 150 quite easily though. This of course was done on a private track.

of course

Apr 14, 2006 | 02:32 PM

#56

ricatthebeach

Drifting

Joined: May 2005

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From: Las Vegas Location: Earth

Quote:

Originally Posted by jayp2423

183 in 5th...MN6 non Z51 on a local highway @ around 3 AM.

I find this hard to believe. I've had my Z51 MN6 Vert to 155 in 5th and was tacking 5500.

Apr 14, 2006 | 02:33 PM

#57

ricatthebeach

Drifting

Joined: May 2005

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From: Las Vegas Location: Earth

I've taken a cel phone call at 100 mph. No problem. Car feels glued to ground and tight at that speed

Apr 14, 2006 | 02:39 PM

#58

H20Vette

Pro

Joined: Jun 2005

Posts: 529

Likes: 0

From: North Carolina

Quote:

Originally Posted by promod69camaro

Even when the convertor is locked there are still losses to mechanical friction inside the tranny. Automatic transmissions are known for having more internal losses than manual transmissions. If you want proof, look no further than your local dyno. The automatic will dyno lower.

Apr 14, 2006 | 03:17 PM

#59

sallen619

Drifting

Joined: Sep 2004

Posts: 1,912

Likes: 33

From: S.D. CA

Quote:

Originally Posted by C6 DVL

152 on a bridge.

http://videos.streetfire.net/search/...421977993A.htm

picture is worth 1,000 words, but videos are priceless

OUCH!!! Please turn it off next time!!!

Apr 14, 2006 | 04:15 PM

#60

dbratten

Drifting

Joined: Nov 2005

Posts: 1,745

Likes: 35

From: Turlock CA

Quote:

Originally Posted by ricatthebeach

I find this hard to believe. I've had my Z51 MN6 Vert to 155 in 5th and was tacking 5500.

Unless your car has had the rear gears changed to 4.00 or you're running a 23" tall tire 155 MPH is around 4700 RPM. Perhaps you were on the cell phone again?

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