Nitrous Oxide Installation | Tuning | Products
Sponsored by:
Sponsored by:

How much do you backhalf?

Thread Tools
 
Search this Thread
 
Old Apr 12, 2012 | 12:25 AM
  #21  
green94z's Avatar
Thread Starter
On The Tree
15 Year Member
iTrader: (6)
 
Joined: Apr 2008
Posts: 104
Likes: 2
From: Garland
Default

trans has been together and havent noticed any issues over over a year, dont run the car on motor much but i believe its somthing like this

1.75
7.6@92
11.6@115

first stage is a nozzel 78/48 comming on a 1000/wot
second stage fogger 28/20 comming on at 1500/wot
Reply
Old Apr 12, 2012 | 05:57 PM
  #22  
N2RACINGLS1's's Avatar
9 Second Club
iTrader: (2)
 
Joined: Dec 2005
Posts: 1,194
Likes: 2
From: East, TN.
Default

Over a 2 second reduction in ET with a 346 CI and nitrous is very impressive.

When you look at the fact your NA MPH in the 1/4 mile is now the MPH your car is running in the 1/8 mile on nitrous, the car is working pretty good!

I hope the change in gear allows the car to build more MPH on the back half with no loss in ET.

N2
Reply
Old Apr 12, 2012 | 07:23 PM
  #23  
red 95 t/a's Avatar
Launching!
 
Joined: Feb 2010
Posts: 237
Likes: 0
Default

? what does backhalf mean?
Reply
Old Apr 13, 2012 | 12:53 PM
  #24  
GTA91's Avatar
9 Second Club
iTrader: (14)
 
Joined: Nov 2003
Posts: 1,131
Likes: 2
From: St.Louis, Missouri
Default

3600lb car, 26mph backhalf on a 78N jet.
Reply
Old Apr 13, 2012 | 02:07 PM
  #25  
baezi z06's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: May 2009
Posts: 523
Likes: 0
From: Iceland
Default

í did 35mph on a 78N jet and (29mph NA)

C5 Vette T56 3.42 gears 26" tires 3450lbs weight




Baezi
Reply
Old Apr 13, 2012 | 08:13 PM
  #26  
WheelsUp84z's Avatar
10 Second Club
iTrader: (14)
 
Joined: Oct 2005
Posts: 1,384
Likes: 4
From: Concord, NC
Default

Originally Posted by red 95 t/a
? what does backhalf mean?
the MPH difference between your 1/8 mile trap speed and 1/4 mile trap speed.

My formula on motor would pick up about 26-27mph on motor and 34-35 on spray, grated it is a 6 speed car and the suspension setup was not that great ( mid 1.5's on or off the bottle)
Reply
Old Apr 13, 2012 | 10:05 PM
  #27  
red 95 t/a's Avatar
Launching!
 
Joined: Feb 2010
Posts: 237
Likes: 0
Default

Originally Posted by WheelsUp84z
the MPH difference between your 1/8 mile trap speed and 1/4 mile trap speed.

My formula on motor would pick up about 26-27mph on motor and 34-35 on spray, grated it is a 6 speed car and the suspension setup was not that great ( mid 1.5's on or off the bottle)
Oh ok lol. That was a term i never heard before. Thanks
Reply
Old Apr 30, 2012 | 03:10 AM
  #28  
ProTreeRacing's Avatar
FormerVendor
iTrader: (4)
 
Joined: May 2011
Posts: 93
Likes: 0
Default

Figured we would update you guys, with nothing but a gear change we had some huge imporvements. We swapped out the 4.10 for some 3.73 and picked 9 mph, so now we backhalf about 31. we also logged the run and converter is just about perfect, 1000 rpm drop at 6600 shifts. It seems with the calculations it traps 6600 with either gear, so something is up, the map shows we have air, i think our issue is too low timing, i think its time to turn it up. 150mph stock cube nitrous ls1 here we come!
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Apr 30, 2012 | 03:11 AM
  #29  
ProTreeRacing's Avatar
FormerVendor
iTrader: (4)
 
Joined: May 2011
Posts: 93
Likes: 0
Default

Oh and we got to weigh the car, unfortunately the th400 sns 12 bokt were more then we thought. Were right at 3400
Reply
Old Apr 30, 2012 | 06:14 PM
  #30  
gillbot's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2002
Posts: 2,397
Likes: 0
From: East Palestine, OH - USA
Default

Originally Posted by Carter01
I backhalf 27 mph on spray.
about the same here, both NA and on the bottle.
Reply




All times are GMT -5. The time now is 06:44 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE