Dyno'ed the 427 Today
05-04-2013, 10:45 PM
#4
Le Mans Master
Member Since: Sep 2007
Location: Mechanicsburg Pennsylvania
Posts: 5,535
Likes: 0
Received 14 Likes
on
11 Posts
What does 470 rear wheel hp and 434 rear wheel ft lbs torque translate to ratings at the flywheel? Interested as to how your actual car compares to factory provided numbers . . . . 
05-04-2013, 11:05 PM
#6
Team Owner
Member Since: May 2000
Location: Plantation Florida USAF(Retired) 1966-1990
Posts: 47,930
Received 4,505 Likes
on
3,590 Posts
U.S. Air Force
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20-'21-'22-'23-'24
NCM Sinkhole Donor
05-04-2013, 11:13 PM
#7
Team Owner
s
Well,using the 15% drivetrain loss calculation,it's 540.5 flywheel and 499.10 torque.:Even using a 13% loss it's still 531.10 HP,well above factory ratings..gotta love it!
Keep in mind all dyno's are different.Some high,some low.
What does 470 rear wheel hp and 434 rear wheel ft lbs torque translate to ratings at the flywheel? Interested as to how your actual car compares to factory provided numbers . . . .
Keep in mind all dyno's are different.Some high,some low.
05-04-2013, 11:39 PM
#8
Melting Slicks
Yeah, thanks for posting! I'm pretty impressed being that it is suppose to be 505hp at the flywheel with 470 tq. Those are solid numbers!
What I love about the vette (especially the 427) is there is so many customization and performance upgrades available vs the AMG E63 I just came out of. I loved the Benz but this car has a real fun factor and is very affordable to upgrade. I can imagine solid gains from a cam, CAI, headers, & exhaust.
What I love about the vette (especially the 427) is there is so many customization and performance upgrades available vs the AMG E63 I just came out of. I loved the Benz but this car has a real fun factor and is very affordable to upgrade. I can imagine solid gains from a cam, CAI, headers, & exhaust.
05-04-2013, 11:50 PM
#9
Team Owner
I can imagine solid gains from a cam, CAI, headers, & exhaust.
05-04-2013, 11:59 PM
#10
Race Director
Member Since: Jul 2000
Location: Out Where the Buses Don't Run, Eglin AFB/ Niceville FL
Posts: 15,271
Received 1,460 Likes
on
786 Posts
2022 Corvette of the Year Finalist -- Modified
2021 C6 of the Year Winner - Modified
Finalist 2020 C7 of the Year -- Modified
2020 C6 of the Year Finalist - Modified
Was that corrected or uncorrected? Here's mine:
Uncorrected
Corrected
Uncorrected
Corrected
05-05-2013, 12:21 AM
#12
Melting Slicks
Thanks!
05-05-2013, 12:23 AM
#14
Racer
Thread Starter
05-05-2013, 09:43 AM
#15
Race Director
Looks to be uncorrected numbers, just to high for stock power. Look at the the post with both corrected and uncorrected runs to see the power difference.
Usually it says on the print out what mode the dyno was in.
Usually it says on the print out what mode the dyno was in.
05-05-2013, 10:20 AM
#16
Team Owner
Nice
05-05-2013, 10:55 AM
#17
Racer
Thread Starter
Wow. These are Corrected Number.
The first things Brian Ask me after the first run was "What have you done to it?". I looked at him and said " Drove it, Nothing else". Then ask if it had the Stock Air filter. I said "Hell it's only got 722 miles on it."
He looked and laughed "725 NOW!"
He told me that most new Z06's that come in will pull between 430hp- 440hp. And every once in while they will get one that pulls big numbers. " He said the motor must have been built on a Wensdsay LOL.
I've always live by "Brake 'em in like you'er going to drive it!"
The first things Brian Ask me after the first run was "What have you done to it?". I looked at him and said " Drove it, Nothing else". Then ask if it had the Stock Air filter. I said "Hell it's only got 722 miles on it."
He looked and laughed "725 NOW!" He told me that most new Z06's that come in will pull between 430hp- 440hp. And every once in while they will get one that pulls big numbers. " He said the motor must have been built on a Wensdsay LOL.
I've always live by "Brake 'em in like you'er going to drive it!"
05-05-2013, 12:01 PM
#18
Safety Car
I saw a test on TV a few years ago and if I remember correctly the drive train loss for the manual corvette was among the very best; only 12 percent!