General Maintenance & Repairs Leaks | Squeaks | Clunks | Rattles | Grinds
Sponsored by:
Sponsored by: CARiD

30mph why no power

Thread Tools
 
Search this Thread
 
Old Mar 19, 2008 | 09:05 PM
  #1  
99nbmws6's Avatar
Thread Starter
On The Tree
iTrader: (3)
 
Joined: May 2005
Posts: 122
Likes: 1
Default 30mph why no power

i have a 99 ws6 a4. why is it when i hit it from a 30 roll the car has no power but if i hit it doing 20 or 40 the power is there. is it because that is a shift point for the automatic? i have no idea please help
Reply
Old Mar 19, 2008 | 09:08 PM
  #2  
goofyfootsurf's Avatar
Staging Lane
iTrader: (1)
 
Joined: Oct 2007
Posts: 74
Likes: 0
Default

yes, 30 seems to be a bad speed for an auto. I have the same issue.
Reply
Old Mar 19, 2008 | 09:17 PM
  #3  
odarabla's Avatar
10 Second Club
iTrader: (1)
 
Joined: Sep 2007
Posts: 1,500
Likes: 0
From: In Uranus!
Default

Put a stall converter in it and that will take care of that 30mph dead spot. It will no longer have any dead spot!! I ran a best of 13.60 @ 104mph stock with lid and exhaust. Then I put on a set of hooker L/Ts and a PTC 3600 stall converter and went 12.60 @ 108mph.. Call PTC best bang for the buck!!
Reply
Old Mar 19, 2008 | 09:25 PM
  #4  
cherryelky305's Avatar
TECH Resident
iTrader: (2)
 
Joined: Mar 2007
Posts: 751
Likes: 0
Default

I have a engine and trans from a 02 trans am. when i floor it from 30-35 its drops to second and flys. i have 3.73's too.
Reply
Old Mar 19, 2008 | 09:45 PM
  #5  
hndakilr's Avatar
TECH Apprentice
 
Joined: Sep 2007
Posts: 333
Likes: 0
Default

seriously consider a stall
Reply
Old Mar 20, 2008 | 01:38 AM
  #6  
1994Z28Lt1's Avatar
TECH Resident
iTrader: (1)
 
Joined: Sep 2005
Posts: 833
Likes: 0
From: Elko MN
Default

Originally Posted by 99nbmws6
i have a 99 ws6 a4. why is it when i hit it from a 30 roll the car has no power but if i hit it doing 20 or 40 the power is there. is it because that is a shift point for the automatic? i have no idea please help
there is absolutely nothing wrong with your car its the nature of a stock stall and automatic at 30 mph if you floor it, its only going to shift into 2nd gear if your below 30 it will shift into first, at 40 mph you'll be high enough in 2nd where it wont be a huge problem but still feels slower than if you were to floor it from 55 and it drops into 2nd gear

like what was said a stall will help alleviate the dead spot but that dead spot isn't because your car isn't working right its there because its the nature of the beast either get over it or get a higher stall
Reply
Old Mar 20, 2008 | 02:01 AM
  #7  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

stall.. gears will do a LITTLE bit.. but mainly if you go to 373s... your just going to change your dead spots.. thats why anytime someone wants to race a stock ls1.. they usually want to go from 35..

323s and 273s are different though.. i think with 273s it will kick down at like 34 and my 373s kick doing at like 28.. but im not 100% on that...

actually best way to solve your problem come to think of it.. forge.. H/C.. procharger.. 9".. built trans.. some suspension and tires....

^^^^ no dead spots.. anywhere..... ever.. lol
Reply
Old Mar 20, 2008 | 02:05 AM
  #8  
quadd2244's Avatar
TECH Enthusiast
iTrader: (13)
 
Joined: Feb 2007
Posts: 554
Likes: 0
From: near rockford
Default

30 is a total deadspot and your in the way way way bottom of 2nd year. SO obviously if you hit it from 20-25 it will downshift so you have alot more power. I have a stall in my car and at 30mph the car just gets loud but doesnt move. I am going to do a 3.73 to fix that problem but it will still be a lil slugish im sure
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-1

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-2

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-3

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

 Verdad Gallardo
story-4

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

 Pouria Savadkouei
story-5

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

 Verdad Gallardo
story-6

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-7

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-8

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-9

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

 Verdad Gallardo
Old Mar 20, 2008 | 02:14 AM
  #9  
kw's01z28's Avatar
Staging Lane
 
Joined: Dec 2007
Posts: 92
Likes: 0
From: odessa, tx
Default

i have a 01 auto and i kick down nasty right at 30mph i call it my sweet spot, i got the car used i doubt it has gears cause the rest was all stock but yeah when i race i love to roll right at 30 then hit it. i feel more of a dead spot from 40 to 50 but after 50 it will pull from any speed



yeah sucks when you race a pos and you dont kick down then have to play catch up to pass them

Last edited by kw's01z28; Mar 20, 2008 at 02:22 AM.
Reply
Old Mar 20, 2008 | 02:23 AM
  #10  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by quadd2244
30 is a total deadspot and your in the way way way bottom of 2nd year. SO obviously if you hit it from 20-25 it will downshift so you have alot more power. I have a stall in my car and at 30mph the car just gets loud but doesnt move. I am going to do a 3.73 to fix that problem but it will still be a lil slugish im sure
373s arent gonna do much at all.. but you will need it as a supporting mod later...............................
Reply
Old Mar 20, 2008 | 02:25 AM
  #11  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by kw's01z28
yeah sucks when you race a pos and you dont kick down then have to play catch up to pass them
i hate that.. ive had many cars beat me to like 50 this way.... although it is funny because by the time you pass them they are doing like 55 or 60 and your doing like 70.. so thats funny.. but still....

then the old... "you hit the nitrous".. with no solinoids.. lines.. nothing under the hood.. haha.....
Reply
Old Mar 20, 2008 | 02:44 AM
  #12  
Joshiedoom's Avatar
12 Second Club
iTrader: (4)
 
Joined: Dec 2007
Posts: 1,712
Likes: 0
From: Between Bowling Green/Owensboro
Default

Drop it down in second
Reply
Old Mar 20, 2008 | 02:47 AM
  #13  
quadd2244's Avatar
TECH Enthusiast
iTrader: (13)
 
Joined: Feb 2007
Posts: 554
Likes: 0
From: near rockford
Default

Originally Posted by Joshiedoom
Drop it down in second
And exactly what will that do?
Reply
Old Mar 20, 2008 | 02:49 AM
  #14  
quadd2244's Avatar
TECH Enthusiast
iTrader: (13)
 
Joined: Feb 2007
Posts: 554
Likes: 0
From: near rockford
Default

Originally Posted by lemons12
373s arent gonna do much at all.. but you will need it as a supporting mod later...............................
Yeah man I know but I will need it sooner or later like you said. I have full boltons and a cam going in sooner or later and a very small dry shot. So once I do some suspension and do the 3.73 that car will really rip out of the hole which is what im shooting for and also it will be nice on like a 40mph roll espicially on the gas
Reply
Old Mar 20, 2008 | 03:01 AM
  #15  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by Joshiedoom
Drop it down in second
Originally Posted by quadd2244
And exactly what will that do?
exactly what i was going to say..... WAIT... i got it!


ok doing 35 your car doesnt drop down into first.. it stays in second.. BUT your gear selecter is in D.......

doing 35 again.. you drop it down into second.. THIS TIME THOUGH!!!!! it still doesnt kick down.. BUT!!!!!!!!!!!!!! your gear selecter reads............................................. .................................................. ............................................. 2nd!


Reply
Old Mar 20, 2008 | 03:03 AM
  #16  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by quadd2244
Yeah man I know but I will need it sooner or later like you said. I have full boltons and a cam going in sooner or later and a very small dry shot. So once I do some suspension and do the 3.73 that car will really rip out of the hole which is what im shooting for and also it will be nice on like a 40mph roll espicially on the gas
well.. even if you have 323s... your not going to have a dead spot.. with a full bolt on cammed sprayed ls1... well not at least not what most people would call a dead spot... haha
Reply
Old Mar 20, 2008 | 03:06 AM
  #17  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by quadd2244
And exactly what will that do?
damn it quadd.... hes from ken.. quit picking on him...... you know what they say about people from ken.







haha.. j/k dude.. one of my best friends is from ken..




and hes dumb as **** too.. lol


dude j/k again.. <<<<<<<<<< i really am kidding.. sorry...
Reply
Old Mar 20, 2008 | 03:08 AM
  #18  
Joshiedoom's Avatar
12 Second Club
iTrader: (4)
 
Joined: Dec 2007
Posts: 1,712
Likes: 0
From: Between Bowling Green/Owensboro
Default

At 30mph in my car it is in 3rd gear..(3.23s) and when you put it in second it gears down.. thus more power availible..
Reply
Old Mar 20, 2008 | 03:33 AM
  #19  
lemons12's Avatar
TECH Senior Member
iTrader: (71)
 
Joined: Jul 2007
Posts: 11,088
Likes: 2
From: Winchester, TN
Default

Originally Posted by quadd2244
And exactly what will that do?
Originally Posted by Joshiedoom
At 30mph in my car it is in 3rd gear..(3.23s) and when you put it in second it gears down.. thus more power availible..
no dude.. i also have 3.23s.. when you kick it doing 30 wether you are in 3rd or 4th gear (it doesnt matter).. it wil kick down into second.....

just the same.. if you drop it into second.. you are in second.. same amount of power....

if your car can.. when you floor it, it will automatically <<< get it automatic..... kick down to the lowest possible gear.. you putting it in that gear is a waste of time..

this has been discussed and BEATEN to death so many times before.. YOU CANT OUTSHIFT an automatic.. leave it in drive and floor it.. if you want to "drop it into second" or manual shift.. ex. from a dig shift from 1st to 2nd to 3rd.... BUY A MANUAL.. otherwise leave it in D and floor it...
Reply
Old Mar 20, 2008 | 04:27 AM
  #20  
JEB99TA's Avatar
TECH Addict
iTrader: (32)
 
Joined: Apr 2004
Posts: 2,712
Likes: 2
From: Florida
Default

Mine's an A4 with 3:73's and I wasn't satisified until I got a PT4000 stall converter put in a couple weeks ago. A lot of M6's and other various manual cars would take advantage and want to roll race from that speed because they KNEW it was my weakest roll speed. Now, the problem is gone and I roll race from any speed. You seriously need a T/C. With GU5 3:23 gears out back, you could get away with larger, but, it takes some getting used to. After owning two Yank SS3600's, I decided to go bigger ... this PT4000 is loose on the street, but, that's how I like it.

Some folks say when it comes to converters, 'go big or stay home'. I say 'go big or stay slow'.
Reply



All times are GMT -5. The time now is 02:03 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
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-4
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-5
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-6
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-7
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-8
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-9
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