C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

corrected 1/4 times

Thread Tools
 
Search this Thread
 
Old Mar 28, 2008 | 08:55 AM
  #21  
dennis50nj's Avatar
dennis50nj
Race Director
10 Year Member
 
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Default

here's how it works guys, every 1000 ft of da is worth 3% of your hp or rwhp it doesn't mater. so +3000ft da to -1000 ft da 4x3% of rwhp. roughly 400 rwhp 12 more rwhp x 4 = 48 more rwhp so lets say 4-5 1/10s faster, so add that to your best time stay home and keep telling everyone that's what you ran. its just like saying i ran 10.92 in
+200+300 da if i catch a -3000 da which is possible in a lot of the country i could have 40 more rwhp and get 4/10s better and get 10.5 now that's why corrections don't work
Reply
Old Mar 28, 2008 | 08:56 AM
  #22  
dennis50nj's Avatar
dennis50nj
Race Director
10 Year Member
 
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Default

Originally Posted by moship
NHRA uses the following for tracks at elevation...
www.nhra.com/tech_specs/altitude.html
yes and thats for elavation not da ft.
Reply
Old Mar 28, 2008 | 09:31 AM
  #23  
LSCHLEM's Avatar
LSCHLEM
Melting Slicks
15 Year Member
 
Joined: Sep 2007
Posts: 2,597
Likes: 3
From: READING PA
St. Jude Donor '08-'09-'10
Default Why Not Sae Track Tests ??

Originally Posted by dennis50nj
yes and thats for elavation not da ft.

They should have a SAE correction factor for et's just like they do on dyno tests. We would all have a lot of fun chasing numbers around.
Reply
Old Mar 28, 2008 | 09:43 AM
  #24  
socalzo6's Avatar
socalzo6
Thread Starter
Pro
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2007
Posts: 605
Likes: 4
From: chino ca
Default

Originally Posted by glennhl
I'm getting senile, I thought you were the one that posted this, that's why I said you were a great driver!

Anyway, your 11.54 at 119.64 corrects to:

11.03 at 124.88

I'm guessing you'll run around 11.13 at 124 with a zero DA and you be easily into the 10's at 125 at ATCO on a cold -1000 foot day!
I'm a great driver in a automatic
Reply
Old Mar 28, 2008 | 10:16 AM
  #25  
jbsblownc5's Avatar
jbsblownc5
Race Director
Supporting Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Default

Originally Posted by socalzo6
I'm a great driver in a automatic
Yes you are my friend!! The way your car sits right now, I'd put even $$ on you and any auto on the C6 fast list, same track, same day!
Reply
Old Mar 28, 2008 | 10:36 AM
  #26  
dennis50nj's Avatar
dennis50nj
Race Director
10 Year Member
 
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Default

Originally Posted by jbsblownc5
Yes you are my friend!! The way your car sits right now, I'd put even $$ on you and any auto on the C6 fast list, same track, same day!
come to atco my friend $10,000 and tune it for torco, why race their and say would of, could of, should of.
Reply
Old Mar 28, 2008 | 10:38 AM
  #27  
jbsblownc5's Avatar
jbsblownc5
Race Director
Supporting Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Default

Originally Posted by dennis50nj
here's how it works guys, every 1000 ft of da is worth 3% of your hp or rwhp it doesn't mater. so +3000ft da to -1000 ft da 4x3% of rwhp. roughly 400 rwhp 12 more rwhp x 4 = 48 more rwhp so lets say 4-5 1/10s faster, so add that to your best time stay home and keep telling everyone that's what you ran. its just like saying i ran 10.92 in
+200+300 da if i catch a -3000 da which is possible in a lot of the country i could have 40 more rwhp and get 4/10s better and get 10.5 now that's why corrections don't work
I hear ya Dennis. But here's another problem that my left coast friends don't want to ackknowledge. There seems to be more to it then just a DA calculation. Just look at the facts. I've now run a best of 124.4 MPH at SAC, and backed it up with a few 123s. I have a tad more HP then I did then, and ran a best of 119.64 last weekend at Fontana. Remember, there were 2 bone stock Zs there, and both ran 117 MPH against me in the two races I had.
One Z did hit 120 on a few runs, but was in the 118/119 mph range most of the day. I ran 119 with runflats and MTs, on the same day.
I say if you did add about 40 HP to our runs last weekend, the Zs and I would have come right up to what we would have run at 0 ft, around 124 to 125 MPH.


I don't tell anyone I ran anything other then what I ran, and that was 2 bone stock Zs that saw my taillights!!!
Reply
Old Mar 28, 2008 | 10:43 AM
  #28  
jbsblownc5's Avatar
jbsblownc5
Race Director
Supporting Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Default

Originally Posted by dennis50nj
come to atco my friend $10,000 and tune it for torco, why race their and say would of, could of, should of.
As for myself, sure Dennis I'd race you half way between us, loser pays expenses. Bolt on to Bolt on 2 out of 3.

JB
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old Mar 28, 2008 | 10:50 AM
  #29  
dennis50nj's Avatar
dennis50nj
Race Director
10 Year Member
 
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Default

Originally Posted by jbsblownc5
I hear ya Dennis. But here's another problem that my left coast friends don't want to ackknowledge. There seems to be more to it then just a DA calculation. Just look at the facts. I've now run a best of 124.4 MPH at SAC, and backed it up with a few 123s. I have a tad more HP then I did then, and ran a best of 119.64 last weekend at Fontana. Remember, there were 2 bone stock Zs there, and both ran 117 MPH against me in the two races I had.
One Z did hit 120 on a few runs, but was in the 118/119 mph range most of the day. I ran 119 with runflats and MTs, on the same day.
I say if you did add about 40 HP to our runs last weekend, the Zs and I would have come right up to what we would have run at 0 ft, around 124 to 125 MPH.


I don't tell anyone I ran anything other then what I ran, and that was 2 bone stock Zs that saw my taillights!!!
oh yes it works both ways minus da plus da its the same, they other factor is cold most guys cant drive and get traction in the 30s. i remember running an 11.62 at 116 in dec last year and running an 11.62 at 115 in the spring da and weather conditions are not really calcuable
its good in theory but just doesn't work 100% of the time
Reply
Old Mar 28, 2008 | 10:55 AM
  #30  
dennis50nj's Avatar
dennis50nj
Race Director
10 Year Member
 
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Default

Originally Posted by jbsblownc5
As for myself, sure Dennis I'd race you half way between us, loser pays expenses. Bolt on to Bolt on 2 out of 3.

JB
that's great JB! but since you made the challenge and i am the champ, and you are not even a number 1 contender i pick the race and location atco Dec 2008 i will finalise the details later if you accept
Reply
Old Mar 28, 2008 | 10:58 AM
  #31  
jbsblownc5's Avatar
jbsblownc5
Race Director
Supporting Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Default

Originally Posted by dennis50nj
that's great JB! but since you made the challenge and i am the champ, and you are not even a number 1 contender i pick the race and location atco Dec 2008 i will finalise the details later if you accept
Only one problem my friend, by Dec 2008 whose to say you'll still be the champ...


Gota go to work...
Reply
Old Mar 28, 2008 | 11:16 AM
  #32  
socalzo6's Avatar
socalzo6
Thread Starter
Pro
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2007
Posts: 605
Likes: 4
From: chino ca
Default

Oh no, look what i started
Reply
Old Mar 28, 2008 | 11:49 AM
  #33  
LS1LT1's Avatar
LS1LT1
Team Owner
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
Default

Originally Posted by jbsblownc5
Yes you are my friend!! The way your car sits right now, I'd put even $$ on you and any auto on the C6 fast list, same track, same day!
Oh yes, after hearing about his bone stock 1/8th mile times it's very possible that he could be the quickest in the 1/4 as well.
Having nearly 40rwhp extra certainly doesn't hurt.
Reply
Old Mar 28, 2008 | 11:50 AM
  #34  
LS1LT1's Avatar
LS1LT1
Team Owner
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
Default

Originally Posted by socalzo6
Oh no, look what i started
Told ya so!

Reply
Old Mar 28, 2008 | 12:58 PM
  #35  
moship's Avatar
moship
Heel & Toe
10 Year Member
 
Joined: Jul 2004
Posts: 20
Likes: 0
From: Lebanon PA
Default

Dennis50nj

I might be wrong, but isn't density altitude the relative altitude under standard atmospheric conditions? If so, the link provide earlier will work to calculate ET's back to zero elevation. I know the link only has some of the higher elevation tracks, but there are several with elevations at 3700 feet. The conversion factors will be very close since your DA is 3600 feet.

For 3600 feet the conversion factors are 0.9562 (ET) and 1.0465 (MPH). The correction factors came from the following site... http://www.greatlakesdragaway.com/co...onfactors.html

Perhaps I'm wrong... It won't be the first time.
Reply
Old Mar 28, 2008 | 01:10 PM
  #36  
Tony B4's Avatar
Tony B4
Safety Car
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2006
Posts: 3,922
Likes: 4
From: Cheektowaga NY
St. Jude Donor '08
Default

Originally Posted by dennis50nj
that's great JB! but since you made the challenge and i am the champ, and you are not even a number 1 contender i pick the race and location atco Dec 2008 i will finalise the details later if you accept
Originally Posted by jbsblownc5
Only one problem my friend, by Dec 2008 whose to say you'll still be the champ...

Reply
Old Mar 28, 2008 | 01:13 PM
  #37  
LS1LT1's Avatar
LS1LT1
Team Owner
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
Default

Originally Posted by jbsblownc5
Only one problem my friend, by Dec 2008 whose to say you'll still be the champ...
Good point, anything can happen in 8 months...including Dennis's bolt on car getting even quicker as well!
Reply

Get notified of new replies

To corrected 1/4 times

Old Mar 28, 2008 | 01:20 PM
  #38  
Tony B4's Avatar
Tony B4
Safety Car
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2006
Posts: 3,922
Likes: 4
From: Cheektowaga NY
St. Jude Donor '08
Default

Originally Posted by LS1LT1
Good point, anything can happen in 8 months...including Dennis's bolt on car getting even quicker as well!
Without a doubt! Dennis will break his record.

Know one will ever own that spot except Dennis,Dennis owns the #1 spot.

Last edited by Tony B4; Mar 28, 2008 at 01:26 PM.
Reply
Old Mar 28, 2008 | 01:35 PM
  #39  
LS1LT1's Avatar
LS1LT1
Team Owner
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
Default

Originally Posted by Tony B4
Know one will ever own that spot except Dennis,Dennis owns the #1 spot.
Normally I would never agree with a statement like that...stellar track times/records get broken all of the time but something tells this one REALLY might be VERY true.
Until I go for it of course.
Reply
Old Mar 28, 2008 | 01:37 PM
  #40  
Tony B4's Avatar
Tony B4
Safety Car
15 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Sep 2006
Posts: 3,922
Likes: 4
From: Cheektowaga NY
St. Jude Donor '08
Default

Originally Posted by LS1LT1
Normally I would never agree with a statement like that...stellar track times/records get broken all of the time but something tells this one REALLY might be VERY true.
Until I go for it of course.
Reply



All times are GMT -4. The time now is 05:25 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE