Gears & Axles Driveshafts | Rearends | Differentials | Gears | 12 Bolt | 9 Inch | Dana

New here! Need help

Thread Tools
 
Search this Thread
 
Old Mar 16, 2002 | 11:20 PM
  #1  
Trae's Avatar
Thread Starter
Teching In
 
Joined: Mar 2002
Posts: 20
Likes: 0
From: Kalifornia
Default New here! Need help

Posted this on LS1.com and as usual got no response.

Went to the track today, the car was launching great, but on the 2-3 shift it would not go in. It kept hitting the rev limiter, I have a HPP3 and kept trying to adjust the shift points, but that didn't help either. I have a 3500 stall and I know this is the reason, but what is going on and how do I fix it?? Shift Kit? or is something wrong? By the way, I ran a 12.83 @ only 103 . every time it tried to shift to third I would have to hit the brakes and let it off

I just read another post about torque management. Could this be the problem?? Thanks in advance
Reply
Old Mar 17, 2002 | 07:24 AM
  #2  
gwj's Avatar
gwj
TECH Addict
 
Joined: Nov 2001
Posts: 2,003
Likes: 0
From: Live Oak, FL - in the woods where the creatures lurk.
Default Re: New here! Need help

Welcome to the board!
When it does this, can you let off the gas and nail it again and it shifts? (rev limiter)
Or is it shifting and then bogging? (TM)
If the converter install is recent, I would leave stock settings for a while and see if it clears up (worked for me), then setup your shift points. I'm running +4 on 1-2 and +2 on 2-3 w/2.73 gears. TM (pulled timing at the shift) is killing me bigtime right now. It helps if you can use Autotap or similar and log just rpm,mph,timing and current gear to get an accurate handle on what's happening.

<small>[ March 17, 2002, 07:26 AM: Message edited by: gwj ]</small>
Reply
Old Mar 17, 2002 | 07:33 AM
  #3  
Black LS1 T/A's Avatar
Moderator
20 Year Member
 
Joined: Nov 2001
Posts: 3,048
Likes: 12
From: Raleigh, NC
Default Re: New here! Need help

I have a SY3500.

When I was N/A, and had 2.73's, I ran +5 on the 1-2 shift and Rev Limiter set to 6600.

When I put in 3.73's, I had to drop that back to +3. The revs climb so quickly, it sometimes bumped the rev limit briefly, just before shifting.

If I spun too wildly, even +3 was too much. Drop your shift point back until you don't hit the rev limiter. Make sure you are not spinning too wildly (that's useless anyway, right?). And make sure the rev limit is set to max (6600 for the HPP).

Since my SC, I have my rev limit set to 7000. I've seen rpms as high as 6700. <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />
Reply
Old Mar 17, 2002 | 07:37 AM
  #4  
gwj's Avatar
gwj
TECH Addict
 
Joined: Nov 2001
Posts: 2,003
Likes: 0
From: Live Oak, FL - in the woods where the creatures lurk.
Default Re: New here! Need help

Raising the rev limit could help, but I was reluctant to do that on a stock valvetrain.
Reply
Old Mar 17, 2002 | 02:00 PM
  #5  
Trae's Avatar
Thread Starter
Teching In
 
Joined: Mar 2002
Posts: 20
Likes: 0
From: Kalifornia
Default Re: New here! Need help

Thanks for the response guys. I guess I will reset it back to stock and try a flash the pcm and reset the shift points.
Reply
Old Mar 17, 2002 | 07:35 PM
  #6  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default Re: New here! Need help

If that doesn't work, put your stock MAF ends back on and see if that helps.
Reply
Old Mar 17, 2002 | 07:41 PM
  #7  
Trevor @ Texas Speed & Perf.'s Avatar
LS1Tech Premium Sponsor
20 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
iTrader: (3)
 
Joined: Nov 2001
Posts: 4,399
Likes: 5
From: Lubbock, Texas
Default Re: New here! Need help

Hopefully it's something simple. When my trans started doing this in my '98 T/A, my clutches started going out. It wouldn't shift at all on N2O, and it wouldn't shift when running N/A either if I was at sea-level and making some nice power.
__________________
Reply
Old Mar 18, 2002 | 01:03 AM
  #8  
Trae's Avatar
Thread Starter
Teching In
 
Joined: Mar 2002
Posts: 20
Likes: 0
From: Kalifornia
Default Re: New here! Need help

I've tried everything! <img border="0" title="" alt="[Mad]" src="gr_images/icons/mad.gif" /> I took off the MAF ends, reset the PCM, and went back to stock shift points. None of which worked at all. Now at this point I think maybe it has to do with the tranny cooler not being hooked up properly?? Maybe the TC is not getting enough fluid at W.O.T?
Anybody have any ideas please help!
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 Mar 19, 2002 | 12:45 AM
  #9  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default Re: New here! Need help

How have the tranny temps been? Any chance that you bent/damaged a cooler line after the converter instal?

Did you try using negative shift point adjustment, e.g. -3 mph?

Also, is your tranny fluid right to the top? being down half a quart can cause sluggish shifting.
Reply
Old Mar 19, 2002 | 10:43 PM
  #10  
Trae's Avatar
Thread Starter
Teching In
 
Joined: Mar 2002
Posts: 20
Likes: 0
From: Kalifornia
Default Re: New here! Need help

Update.

After all that crap, it was low on fluid. I feel stupid.
Reply
Old Mar 21, 2002 | 06:58 AM
  #11  
99BlueZ28's Avatar
TECH Apprentice
 
Joined: Nov 2001
Posts: 303
Likes: 0
From: Chicagoland Area
Default Re: New here! Need help

Ahh don't feel stupid. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Its the learning process. When I first got my car I didn't know which side was the front on my airlid. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Reply
Old Mar 21, 2002 | 08:13 AM
  #12  
Ragtop 99's Avatar
TECH Senior Member
iTrader: (7)
 
Joined: Nov 2001
Posts: 9,491
Likes: 1
From: Bethesda, MD
Default Re: New here! Need help

Don't feel bad. We're happy that it wasn't anything serious.
Reply




All times are GMT -5. The time now is 01:43 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