Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
Bigwormgraphix
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Engine | Drivetrain | Powertrain Technical Discussions > Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons

Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

Reply
 
Thread Tools
Old 06-10-2013, 11:07 AM   #1
Rogan
No Pain No Gain
 
Rogan's Avatar
 
Drives: Yellow 5th Gen 2SS RS
Join Date: Aug 2009
Location: SFL
Posts: 1,551
Those with Stall Converter knowledge/experience please explain

Exactly what the stall converter does?

I've always owned manual performance cars until I got this SS. I probably wouldn't have if I did more research prior to purchasing. I wanted to eventually put a similar setup I had in Vette - but I'm hearing that I should have got another manual.

Anyway no time for crying and with the car almost paid off I don't plan on trading her in.

I road course the car during the winter months in FL and she is my daily driver for at least another 6 months. Had her for 2 years now - and now I'm ready to start adding some power.

However before I make a decision - need to learn more about stall converters and which one would work for my track & street application.
__________________
2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors
Rogan is offline   Reply With Quote
Old 06-10-2013, 11:22 AM   #2
62nalide


 
62nalide's Avatar
 
Drives: 2013 SS
Join Date: May 2013
Location: DFW
Posts: 2,600
Look in the transmission section on the top section they have a nice stall/converter write up and helping you pick one out.
__________________
GPI VVT cam equipped.
N/A 6.2L 7.0s @ 102mph in the 1/8!
10.92 @ 125.83 mph in the 1/4!
62nalide is offline   Reply With Quote
Old 06-10-2013, 11:31 AM   #3
Rogan
No Pain No Gain
 
Rogan's Avatar
 
Drives: Yellow 5th Gen 2SS RS
Join Date: Aug 2009
Location: SFL
Posts: 1,551
Quote:
Originally Posted by 62nalide View Post
Look in the transmission section on the top section they have a nice stall/converter write up and helping you pick one out.
Thanks
__________________
2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors
Rogan is offline   Reply With Quote
Old 06-10-2013, 11:32 AM   #4
SC2150
Account Suspended
 
Drives: 2012 Camaro RS, RX supercharged
Join Date: Dec 2009
Location: Bradenton, FL
Posts: 6,077
If you are road course racing a stall converter will not allow engine braking and the "flash" when you come out of the corners will cause the rear to break loose.

A stall converter is for straightline acceleration. In a nutshell, think of it as revving a manual with the clutch in and popping it. It puts you into the power band which is great for straightline, but not road course.
SC2150 is offline   Reply With Quote
Old 06-10-2013, 11:40 AM   #5
Rogan
No Pain No Gain
 
Rogan's Avatar
 
Drives: Yellow 5th Gen 2SS RS
Join Date: Aug 2009
Location: SFL
Posts: 1,551
Quote:
Originally Posted by SC2150 View Post
If you are road course racing a stall converter will not allow engine braking and the "flash" when you come out of the corners will cause the rear to break loose.

A stall converter is for straightline acceleration. In a nutshell, think of it as revving a manual with the clutch in and popping it. It puts you into the power band which is great for straightline, but not road course.
Thanks...that was critical info right there.
__________________
2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors
Rogan is offline   Reply With Quote
Old 06-10-2013, 12:27 PM   #6
Pro Stock John
Writer
 
Pro Stock John's Avatar
 
Drives: 2010 SS / 1951 Mercury
Join Date: May 2009
Location: Chicago, IL
Posts: 5,047
Thinking out loud, the stock converter for me would go up to about 1600/1700. If you think it's too tight on the road course, you could go up to a 2800 aftermarket stall. I had also kicked around the idea with a friend of restalling a stock converter, maybe it would be 400 rpms looser. PTC will do that, might be couple hundred $.

Are you using tapshift or letting it shift on its own? With a tune you can also have the tap shifts noticeably sped up.

So...

1) You get a custom tune, speed up the tap shifts. Also get a trans cooler installed. You add more stall but not so much that it will loose traction everytime you floor it coming out of a corner.

2) You get a custom tune, speed up the tap shifts. Also get a trans cooler installed. You add more gear instead. Not sure if this would work better or worse. It seems to me that you will never see 2nd gear on the road course except if you floor it and it downshifts.

I think you have to know the car and know what it wants. If you use tap shift and downshift to say 3rd in most corners, then with more gear or converter you will have higher rpms most of the time.

Hope I'm helping, just thinking out loud a bit.
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@113 1.59 | + 3.91s + Race Star 17x7 Fronts
__.__@___ 1.__ | + GPI VVT Cam + BW Ported Heads
Pro Stock John is offline   Reply With Quote
Old 06-10-2013, 12:34 PM   #7
Rogan
No Pain No Gain
 
Rogan's Avatar
 
Drives: Yellow 5th Gen 2SS RS
Join Date: Aug 2009
Location: SFL
Posts: 1,551
I tap shift.

This isn't going to require more research than I thought.
__________________
2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors
Rogan is offline   Reply With Quote
Old 06-10-2013, 01:56 PM   #8
Pro Stock John
Writer
 
Pro Stock John's Avatar
 
Drives: 2010 SS / 1951 Mercury
Join Date: May 2009
Location: Chicago, IL
Posts: 5,047
A looser converter will rpm higher before it couples, so your rpms will jump up more than it does stock.

So let's say you are in M4, and downshift to M3 for a turn, with a looser stall, say 1000 rpms looser (2700 vs 1700 stock), you'll see maybe that much rpm maybe a bit less, as you floor it coming out of the turn. So you'll see RPMS over 2000 as you got WOT instead of 1700.

As you make more power at higher rpms, it's a good thing but at some point the converter is too loose.

Idea I had with my buddy was maybe to get a stock stall loosened up to like 2200-2400 so how that would drive.
__________________
PROJECT HEAVY CHEVY
Camaro Now: Mods for the Masses Part I | Part II
13.15@106 1.95 | 100% Stock
12.37@112 1.85 | + Kooks Headers/Cats + 20" 555R + CAI + BW TB + UDP + Tune
12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
11.84@113 1.59 | + 3.91s + Race Star 17x7 Fronts
__.__@___ 1.__ | + GPI VVT Cam + BW Ported Heads
Pro Stock John is offline   Reply With Quote
Old 06-10-2013, 04:48 PM   #9
Apex Motorsports

 
Apex Motorsports's Avatar
 
Drives: 2000 Camaro SS
Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 23,521
Check out the video in this thread.

Torque Converter Basics
__________________
Apex Motorsports is offline   Reply With Quote
Old 06-10-2013, 06:17 PM   #10
Rogan
No Pain No Gain
 
Rogan's Avatar
 
Drives: Yellow 5th Gen 2SS RS
Join Date: Aug 2009
Location: SFL
Posts: 1,551
Quote:
Originally Posted by Apex Chase View Post
Check out the video in this thread.

Torque Converter Basics
__________________
2010 2SS/RS/L99 - Headers/CAI/SWAYs/CoilOvers/Tune/Steel Braided Brake Lines/Frozen Slotted Rotors
Rogan is offline   Reply With Quote
Old 06-10-2013, 06:20 PM   #11
SC2150
Account Suspended
 
Drives: 2012 Camaro RS, RX supercharged
Join Date: Dec 2009
Location: Bradenton, FL
Posts: 6,077
To go with ANY looser converter what you have is the Sprague not allowing engine braking, so unless you have a converter just built tuffer (like the billet series) for more durability, you will run into the same "flash" that will break the rear tires loose coming out of turns....even a 2400-2800 will do that. The stock converter you may be able to power brake it up a bit....but it does not "flash" to hit like a clutch dump that a stall converter will.
SC2150 is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:50 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.