Drag Racing Tech
Sponsored by:
Sponsored by:

need help for tonight

Old Mar 20, 2009 | 02:18 PM
  #1  
snakeeater03's Avatar
Thread Starter
Staging Lane
iTrader: (1)
 
Joined: Jun 2007
Posts: 80
Likes: 0
From: FT. Hood TX
Default need help for tonight

Going to the track in a couple hours. Put on my sfc, lca with relocation brackets, torque arm, and panhard bar on a couple weeks ago. Still running 1.9 60'. This was at 12 psi on the mt et streets. Any suggestions to help me get this down tonight. thank you.
Reply
Old Mar 20, 2009 | 02:26 PM
  #2  
z28rob18's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Sep 2008
Posts: 1,830
Likes: 0
From: hamilton nj
Default

i believe ppl on DRs run more air in the tires. i think its because they work better. try lik 18psi and maybe disconnecting the front sway bar
Reply
Old Mar 20, 2009 | 02:29 PM
  #3  
snakeeater03's Avatar
Thread Starter
Staging Lane
iTrader: (1)
 
Joined: Jun 2007
Posts: 80
Likes: 0
From: FT. Hood TX
Default

I'll try that, I ran a 12.3 at 112 with the 1.9. Just looking to get close to the 11 sec time.
Reply
Old Mar 20, 2009 | 03:36 PM
  #4  
02BEAST's Avatar
11 Second Club
iTrader: (8)
 
Joined: Aug 2006
Posts: 528
Likes: 3
From: Mass
Default

Originally Posted by snakeeater03
Going to the track in a couple hours. Put on my sfc, lca with relocation brackets, torque arm, and panhard bar on a couple weeks ago. Still running 1.9 60'. This was at 12 psi on the mt et streets. Any suggestions to help me get this down tonight. thank you.
Dam 12 psi too low. I run 20 psi it seems like a good number. My car is almost like yours you should be running close to my times. Bring the rpm's up to 15-1800 then smash it and let the converter flash and don't let off lol! You should clock in at high 11's.
Reply
Old Mar 20, 2009 | 04:30 PM
  #5  
shortdog's Avatar
9 Second Club/Nitrous Mod
20 Year Member
iTrader: (1)
 
Joined: Nov 2003
Posts: 834
Likes: 0
From: St. Louis, MO
Default

Originally Posted by snakeeater03
I'll try that, I ran a 12.3 at 112 with the 1.9. Just looking to get close to the 11 sec time.
Even with the 1.9 sixty, your mph is low for the mods you have. You should be trapping at least 115 mph.
Reply
Old Mar 20, 2009 | 04:43 PM
  #6  
z28rob18's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Sep 2008
Posts: 1,830
Likes: 0
From: hamilton nj
Default

Originally Posted by shortdog
Even with the 1.9 sixty, your mph is low for the mods you have. You should be trapping at least 115 mph.
a low psi in a radial can slow ur mph down though
Reply
Old Mar 20, 2009 | 05:23 PM
  #7  
LM97Z's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Feb 2008
Posts: 1,291
Likes: 0
From: S.W. Missouri
Default

Thats a very low Trap speed for 435 rwhp, i'de be checking the tune, unless your really spinning bad, something seems off.
Reply
Old Mar 20, 2009 | 05:26 PM
  #8  
Z28/2002's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2005
Posts: 6,799
Likes: 5
From: Your girl's back door giving her the long stroke while you're at work
Default

Are any of the parts adjustable?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-2

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-3

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-4

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

 Verdad Gallardo
story-5

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-6

10 Camaros You Should Never Buy

 
story-7

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
story-8

Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

 Brett Foote
story-9

10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

 Verdad Gallardo
Old Mar 20, 2009 | 05:57 PM
  #9  
transam69230's Avatar
11 Second Club
20 Year Member
iTrader: (49)
 
Joined: Feb 2005
Posts: 1,872
Likes: 22
From: Minnesota
Default

I run 18psi cold and the usually come up to 20psi warm. Wonder what your pinion angle is, I would check that if it is positive it could be hurting your 60ft times.
Reply
Old Mar 20, 2009 | 06:29 PM
  #10  
Z28/2002's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2005
Posts: 6,799
Likes: 5
From: Your girl's back door giving her the long stroke while you're at work
Default

Originally Posted by transam69230
I run 18psi cold and the usually come up to 20psi warm. Wonder what your pinion angle is, I would check that if it is positive it could be hurting your 60ft times.
That is what I was getting at
Reply
Old Mar 20, 2009 | 06:47 PM
  #11  
JUICED96Z's Avatar
TECH Addict
iTrader: (2)
 
Joined: Jul 2002
Posts: 2,970
Likes: 1
From: Indy
Default

Originally Posted by z28rob18
i believe ppl on DRs run more air in the tires. i think its because they work better. try lik 18psi and maybe disconnecting the front sway bar
He is on ET streets, not Drag Radials....

Get the PSI up to what you would drive on the street. Make a run then start droping the PSI untill you slow down, 18PSI may be about right. If your suspension parts are adjustable make sure the rear is square and all that good stuff. Are you on a preped track or street night? That has a lot to do with it.

I have time slips from the previous owner of my old 83 BBC car and with a non adjustable torque arm, double adjustable panhard rod, stock springs and shocks and lakewood drag shocks up front it had 60 foot times from 1.6-1.9 on old M&H race masters (the old crummy ones compared to whats out now).

I got the car and with Spohn double adjustable LCA's (made no ajustments), QA1 drag shocks and MT ET street (28/11.5/15) with street air pressure on the motor and night in the cold no burn out I hooked.

This was at like 2500 rpm (foot brake with no power brakes) but the second I floored it I was at 4,000 RPM.

If your torque arm is adjustable put it at like -2. Even with a stock motor on suspension and stickies you should be able to get a 1.8 or better.
Reply
Old Mar 20, 2009 | 06:53 PM
  #12  
z28rob18's Avatar
TECH Fanatic
iTrader: (7)
 
Joined: Sep 2008
Posts: 1,830
Likes: 0
From: hamilton nj
Default

arent et streets drag radials??? i thought they were drag radials with a stiff sidewall?
Reply
Old Mar 20, 2009 | 07:36 PM
  #13  
02BEAST's Avatar
11 Second Club
iTrader: (8)
 
Joined: Aug 2006
Posts: 528
Likes: 3
From: Mass
Default

My 60 ft's are in the 1.50's with all stock suspention
Reply
Old Mar 20, 2009 | 09:08 PM
  #14  
JUICED96Z's Avatar
TECH Addict
iTrader: (2)
 
Joined: Jul 2002
Posts: 2,970
Likes: 1
From: Indy
Default

Originally Posted by z28rob18
arent et streets drag radials??? i thought they were drag radials with a stiff sidewall?
Look at at ET street next to a Drag radial. Different tires that react to power different.

ET street side walls are not stiff...... I have owned them and have some in my garage... if you sit on them with to rim or air they will colapse BAD. The Drag radial is more like a regular street tire but is really sticky and can flex but can't flex as much as an ET street or full slick.
Reply
Old Mar 21, 2009 | 02:31 PM
  #15  
snakeeater03's Avatar
Thread Starter
Staging Lane
iTrader: (1)
 
Joined: Jun 2007
Posts: 80
Likes: 0
From: FT. Hood TX
Default

thanks for the help, nothing i have is adjustable. it is street night so might have something to do with. Still rocking the stock 2.73's which probably is not helping. I am worried about the tune. had a local shop tune it. Going to leathal performance in san antonio asap.
Reply
Old Mar 21, 2009 | 03:49 PM
  #16  
Deerhunter-Z28's Avatar
Banned
 
Joined: Apr 2007
Posts: 269
Likes: 0
Default

Couple of questions since something seems way off. Are you on drag radials or et streets, mt makes both. What brand is the stall? What track do you run at, how many ft. above sea level is it?
Reply
Old Mar 21, 2009 | 05:58 PM
  #17  
snakeeater03's Avatar
Thread Starter
Staging Lane
iTrader: (1)
 
Joined: Jun 2007
Posts: 80
Likes: 0
From: FT. Hood TX
Default

et streets, got the stall from performabuilt, came with new tranny. running at little river dragway in temple texas. its central texas. not sure of the elevation
Reply
Old Mar 21, 2009 | 07:17 PM
  #18  
Deerhunter-Z28's Avatar
Banned
 
Joined: Apr 2007
Posts: 269
Likes: 0
Default

Originally Posted by snakeeater03
et streets, got the stall from performabuilt, came with new tranny. running at little river dragway in temple texas. its central texas. not sure of the elevation
Any idea of the DA the times you ran? Something is definitely off, I would start with the tune. You need a gear in a bad way. Assuming you are full weight you should be in the 11.70ish range minimum, faster if you have lightened the car up.
Reply
Old Mar 21, 2009 | 08:44 PM
  #19  
snakeeater03's Avatar
Thread Starter
Staging Lane
iTrader: (1)
 
Joined: Jun 2007
Posts: 80
Likes: 0
From: FT. Hood TX
Default

already got the quote from leathal on gears and tune. Im hoping this will solve my problems. Im looking forward to a good launch and that 11 sec pass.
Reply
Old Mar 23, 2009 | 11:31 PM
  #20  
tording99Z28's Avatar
10 Second Club
iTrader: (3)
 
Joined: Nov 2007
Posts: 1,033
Likes: 2
From: Hampton, VA
Default

Also in your tune have you or your tuner disabled the drivetrain abuse? The A4 cars have a drivetrain abuse mode in them that if you footbrake the car it activates the drivetrain abuse which limits your torque that the motor makes. I had this very same issue and with the abuse mode on the best 60' I could muster was a 1.88 on the same tires you are running. I turned the abuse mode off after I got HPtuners and flashed the converter from about 2k rpm and I cut a 1.57 60'. I run my ET streets wrinkle wall tire(not the DR's) at 20 psi of air and they dead hooked after a short burnout.
Reply

Thread Tools
Search this Thread

All times are GMT -5. The time now is 07:45 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE