LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

81mph on the 1/8 track= to what on the 1/4 mile?

Thread Tools
 
Search this Thread
 
Old Oct 21, 2003 | 05:57 PM
  #1  
rage366's Avatar
Thread Starter
Registered User
 
Joined: Apr 2002
Posts: 780
81mph on the 1/8 track= to what on the 1/4 mile?

well, my car ran 81mph on street tires on the 1/8 track, and since there isnt a 1/4 mile track close, i was wondering if there's a way to figure out the 1/4 mile speed based on the 1/8 mile speed.
Old Oct 21, 2003 | 07:18 PM
  #2  
94GrayV6's Avatar
Registered User
 
Joined: Nov 2000
Posts: 905
From: Orlando, FL
I don't think such a calculator exists. There are too many factors that are involved in the MPH. The only calculators I can find require the 1/8 ET as well as the MPH.
Old Oct 21, 2003 | 07:38 PM
  #3  
FastZinTennessee's Avatar
Registered User
 
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
102.X
Old Oct 21, 2003 | 07:40 PM
  #4  
97Z-M6's Avatar
Registered User
 
Joined: Mar 2002
Posts: 2,058
From: near waco tx.
Originally posted by FastZinTennessee
102.X
what formula did you use to get that number
Old Oct 21, 2003 | 07:45 PM
  #5  
FastZinTennessee's Avatar
Registered User
 
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
Cause when my car trapped 102.X in the 1/4 it went 81.X in the 1/8
Old Oct 21, 2003 | 08:29 PM
  #6  
transamtom's Avatar
Registered User
 
Joined: Mar 2001
Posts: 906
From: niagara falls ont. canada
Here is a Calculator:

http://www.prestage.com/Car+Math/default.aspx
Old Oct 21, 2003 | 08:38 PM
  #7  
rage366's Avatar
Thread Starter
Registered User
 
Joined: Apr 2002
Posts: 780
102.x? damn, that sucks!! all my mods, and i should only expect 102.x? damn, that REALLY sucks!!!


edit: although the temp was 90 when i got that time...but still, that sucks!

Last edited by rage366; Oct 21, 2003 at 08:41 PM.
Old Oct 21, 2003 | 08:39 PM
  #8  
Rodrigues's Avatar
Registered User
 
Joined: Mar 2002
Posts: 1,842
From: Bloomfield Hills MI
What altitude?

Originally posted by rage366
102.x? damn, that sucks!! all my mods, and i should only expect 102.x? damn, that REALLY sucks!!!
Old Oct 21, 2003 | 08:40 PM
  #9  
speed_demon24's Avatar
Registered User
 
Joined: Mar 2002
Posts: 3,245
From: Ocala, Florida
When i ran 81.25 in the 1/8th i ran 100.68 in the 1.4
Old Oct 21, 2003 | 08:42 PM
  #10  
FastZinTennessee's Avatar
Registered User
 
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
The bad news is that does really suck for your mods.

The good news is it can be improved, you just have to find out what's wrong!
Old Oct 21, 2003 | 08:49 PM
  #11  
rage366's Avatar
Thread Starter
Registered User
 
Joined: Apr 2002
Posts: 780
Originally posted by FastZinTennessee
The bad news is that does really suck for your mods.

The good news is it can be improved, you just have to find out what's wrong!
yeah, i think a non-stock TB should help...injectors wouldnt hurt either...


i need to get the car dynoed...the graph should explain something...


i should be makin about 380wrhp....but i KNOW i'm not...i'd feel it.
Old Oct 21, 2003 | 08:58 PM
  #12  
FastZinTennessee's Avatar
Registered User
 
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
I'm making enough power to trap 87 in the 1/8 on a crappy track with the stock TB and injectors. You need a tune bad it sounds like. Do you have a cable so you can get a laptop on your car? If you can do that, there is some great software out there you can scan your car with. Even better is that it's free for thirty days! This way you can see your timing retard because of knock, injector duty cycle, get a very, very rough estimate of running rich or lean etc.

John
Old Oct 21, 2003 | 09:01 PM
  #13  
rage366's Avatar
Thread Starter
Registered User
 
Joined: Apr 2002
Posts: 780
Originally posted by FastZinTennessee
I'm making enough power to trap 87 in the 1/8 on a crappy track with the stock TB and injectors. You need a tune bad it sounds like. Do you have a cable so you can get a laptop on your car? If you can do that, there is some great software out there you can scan your car with. Even better is that it's free for thirty days! This way you can see your timing retard because of knock, injector duty cycle, get a very, very rough estimate of running rich or lean etc.

John

yeah, i've got a laptop and a cable.

at idle, the car makes my eyes water...so, it's runnin really rich....

but, the thing is that it's idling at 1000rpm.

any good programs you'd recommend?
Old Oct 21, 2003 | 09:04 PM
  #14  
FastZinTennessee's Avatar
Registered User
 
Joined: Mar 2001
Posts: 2,521
From: Costa Mesa, CA
http://www.ttspowersystems.com/DM_Software.htm
Old Oct 21, 2003 | 09:21 PM
  #15  
NewbieWar's Avatar
Registered User
 
Joined: Sep 2003
Posts: 2,370
From: Germany
there is no way to tell...

i mean sure, assuming that ur car doesnt top out at 85, 102 sounds about right... but u never know, expecally since we dont know how long it took to get to 81



All times are GMT -5. The time now is 12:14 PM.