Pontiac - Race The next Level

          
Reply
 
Thread Tools Display Modes
  #1  
Old 07-09-2007, 03:36 PM
71 Ventura II's Avatar
71 Ventura II 71 Ventura II is offline
Ultimate Warrior
 
Join Date: Aug 2006
Location: Raymore, MO.
Posts: 3,437
Default ADD 100 HP...what kind of improvement?

Since there is a rule about 100 lbs reducing ET between .08 to .1 I wondered about ET decreases from HP.

EX: If you ran 12.20 and added 100 hp (flywheel) how much quicker would it run?

Vehicle weight 3300#

JD

__________________
Good luck to the new owner of the Ventura II! Sold the car after 13+ years. Look for it on the Hot Rod Power Tour in the future as it's currently being re-configured as a Pro-Touring ride!
  #2  
Old 07-09-2007, 03:59 PM
amcmike's Avatar
amcmike amcmike is offline
Ultimate Warrior
 
Join Date: Oct 2004
Posts: 1,733
Default

HP is usually a better indicator of trap speed than ET.

__________________
"The Mustang's front end is problematic... get yourself a Firebird." - Red Forman
  #3  
Old 07-09-2007, 04:31 PM
Ron H's Avatar
Ron H Ron H is offline
Ultimate Warrior
 
Join Date: Jan 2005
Location: Great White North
Posts: 5,807
Default

www.wallaceracing.com click on auto calculators. You can find out what your HP is based on track times then add the 100 and see what the new et and mph etc would be. It depends on how fast you were to start. I believe the 100 lbs = 10 HP = .1 is based on 11 to 12 sec ets but wouldn't be as true in the low 10's or faster.
I pulled 750 lbs and added approx 70 HP and have shaved 1.4 from my ET's going from 12.10's to 10.70's.

__________________
68 Firebird
Are you running with the wind or breaking it?
  #4  
Old 07-09-2007, 05:05 PM
ponjohn's Avatar
ponjohn ponjohn is offline
Ultimate Warrior
 
Join Date: Mar 2002
Location: Connecticut
Posts: 9,551
Default

Hey Ron, what was the mph increase?

John

  #5  
Old 07-09-2007, 05:43 PM
Brian Baker's Avatar
Brian Baker Brian Baker is offline
Ultimate Warrior
 
Join Date: Feb 2000
Location: Glen Burnie, MD USA
Posts: 17,184
Default

It's a non-linear scale. Add the 100-HP to a 15 second car and it becomes a 14 second car. Do the same to a 12.20 car and may go 11.70 or so. Do the same to a Pro Stock car and it may go .01 quicker. Do the same to a Top Fuel car and there will be no noticeable difference.

__________________
Just a blind squirrel looking for a nut.
  #6  
Old 07-09-2007, 05:49 PM
Ron H's Avatar
Ron H Ron H is offline
Ultimate Warrior
 
Join Date: Jan 2005
Location: Great White North
Posts: 5,807
Default

13 mph John.

__________________
68 Firebird
Are you running with the wind or breaking it?
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 04:16 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017