Threshold for a stall converter - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

TinyToasta · 10-25-2010, 03:06 PM

Although I'm a LS3 guy, I'd be curious about where the hp/torque borderline is actually crossed for a moderatly cammed and tuned L99:

After what tuning stages, or hp/ft-lbs increases have you guys been installing a stall converter, to keep your car away from trying to run-off while on the brakes?

Where's the best source to get a decent yank or similar product, besides converter.cc?

Is it a major PITA to get this installed and calibrated (hours/$)?

Thanks for helping me out here

SC2150 · 10-25-2010, 03:53 PM

Insatlling a new TC is pretty straightforward on a 5th gen Camaro. And there is no "threshold".

A good one properly matched to your car will drop your 1/4 mile ET 1/2 second or better BONE STOCK! Best mod for the money if quicker acceleration is your goal.

The ones I use are all made to order, and it is not unusual to see .7sec improvement.

I also will buy it back if not happy.

TinyToasta · 10-25-2010, 04:04 PM

Quote:

Originally Posted by SC2150

Insatlling a new TC is pretty straightforward on a 5th gen Camaro. And there is no "threshold".

A good one properly matched to your car will drop your 1/4 mile ET 1/2 second or better BONE STOCK! Best mod for the money if quicker acceleration is your goal.

The ones I use are all made to order, and it is not unusual to see .7sec improvement.

I also will buy it back if not happy.

The 1/4 mile part sounds very promising!

The threshhold question was more around how long (performance-wise) can I use the stock converter 'til an aftermarket becomes "necessary"

What do you mean with "properly matched" (noob-ish question I know, my bad

)?

I really appreciate the buy-back offer

, but fyi - that'll mean buying back from Germany....

SC2150 · 10-25-2010, 04:39 PM

Germany is a bit far on the buy-back. LOL

The stock converter would need upgraded when the cam grind gets to radical to idle low enough.

Yank makes a good converter and for years it is all we used in our race LS cars, but we teamed with FTI a few years back and consistantly se 1-2 tenths quicker w/the new design and have yet to break one. All are built to the dyno sheet and mod specs from your car, nothing off the shelf and around the same price.

DanD · 10-25-2010, 04:41 PM

When? Is when the cam is so big the car won't idle at such a low rpm that it wants to surge forward all time.

When for me. Is the second the car hits my hands lol.

I think you would be hard pressed to find any other mod at the $$ to gain soo much

TinyToasta · 10-25-2010, 04:54 PM

Quote:

Originally Posted by SC2150

Germany is a bit far on the buy-back. LOL

Nevermind, I'm getting used to this

Quote:

Originally Posted by SC2150

The stock converter would need upgraded when the cam grind gets to radical to idle low enough

Is it just about the idle, or does the increased torque at low (1000-2000) rpms play a significant role on upgrading as well?

Quote:

Originally Posted by SC2150

All are built to the dyno sheet and mod specs from your car, nothing off the shelf and around the same price.

So besides the mod list, the dyno sheet specs the converter afterall?

Thanx for your help!!!

Slowhawk · 10-25-2010, 06:59 PM

A have to is when you have to set the idle speed over 650rpm.I know because mine is set to 650 and it is close to pushing.
When you should get it- First mod.

SC2150 · 10-25-2010, 07:00 PM

The TC also puts you in the powerband quicker, sort of like a clutch dump on a standard trans.

Texaslegend · 10-26-2010, 01:38 PM

are there any negatives to a new TC? As far as damaging drivetrain? How much does it affect driveability for an everyday driver?

SK360 · 10-26-2010, 01:59 PM

It requires more pedal to get moving but depending on the rated stall speed they can be very streetable.

You will hit your drivetrain harder due to the converter flashing higher but still nothing as bad as side stepping the clutch in a M6 car.

My Vigilante 3200 feels stock to me anymore and makes me miss the Vigilante 3800 I used to have.

600hp-lpe · 10-26-2010, 02:01 PM

Quote:

Originally Posted by Texaslegend

are there any negatives to a new TC? As far as damaging drivetrain? How much does it affect driveability for an everyday driver?

An aftermarket TC hits higher in the RPM's than a stock TC. Usually you specify the RPM where you want it to hook up.

It will make the car more fun to drive since it launches better. It will hit the drivetrain harder when you reach the stall speed.

biggest downfall is that a TC adds heat - hotter trans fluid needs more cooling...

just my $.02....

Dave Coyle · 10-26-2010, 02:22 PM

Pro Torque offers a custom built convertor built for your 2010 L99's that they say will knock .4 to .6 seconds off your quater mile time, stock motor or any modified one, doesn't matter, they build it for your specifications. Expect to pay about $600 - $700 for it.

*radz28* · 10-26-2010, 02:39 PM

IMO - a converter is the FIRST thing I'd do in my car. The caveat is that it should be matched to your combination, so if you already know what you're going to be doing, make sure to have it matched.

I won't have another CAMARO (if it's an auto') without a stall. My old one was a 3800 through 3.23s and it was GREAT!!! Just make sure to get a good tune for the tranny to take advantage

SC2150 · 10-26-2010, 03:43 PM

Quote:

Originally Posted by radz28

IMO - a converter is the FIRST thing I'd do in my car. The caveat is that it should be matched to your combination, so if you already know what you're going to be doing, make sure to have it matched.

I won't have another CAMARO (if it's an auto') without a stall. My old one was a 3800 through 3.23s and it was GREAT!!! Just make sure to get a good tune for the tranny to take advantage

Agree 100%.

And a heavy duty aux trans cooler is a must on ANY upgraded TC.

10-25-2010, 03:06 PM	#1
TinyToasta Drives: way too fast.... Join Date: May 2010 Location: Germany Posts: 297 View My Garage	Threshold for a stall converter Although I'm a LS3 guy, I'd be curious about where the hp/torque borderline is actually crossed for a moderatly cammed and tuned L99: After what tuning stages, or hp/ft-lbs increases have you guys been installing a stall converter, to keep your car away from trying to run-off while on the brakes? Where's the best source to get a decent yank or similar product, besides converter.cc? Is it a major PITA to get this installed and calibrated (hours/$)? Thanks for helping me out here __________________ custom build forged LSA, 379ci, TVS2300@15psi, 696rwhp/688ft-lbs, built by DH Individual, Customkingz, tuned by Jannetty Racing JRE rough idle cam, JRE ported lower intake manifold, OD cog drive, 6% OD crank pulley, ported ls3 heads, NW102mm TB, 1/2'' RDS spacer, IW 8-rib drive Pfadt Cradle Bushings, Arms & Rods, Pedders Supercar w/FE4 conversion, ZL1 sways, HE Twin Carbon Street Slayer, ZL1 Rear End (3.73) CTS-V Brake upgrade, Street: 22'' Vossen CV1, Strip: 18'' Forgestar F14 on MT Street Radials

10-25-2010, 04:41 PM	#5
DanD Drives: 6 camaros Join Date: Feb 2009 Location: ma Posts: 320	When? Is when the cam is so big the car won't idle at such a low rpm that it wants to surge forward all time. When for me. Is the second the car hits my hands lol. I think you would be hard pressed to find any other mod at the $$ to gain soo much __________________ 2010 IOM RS/SS TVS2300, cam, stall, headers 2002 Z28 427 2002 SSLE Convertible 1968 383 Camaro 1968 327 Camaro Convertible 1967 RS 327 1967 Pro-Tour LS3 in progress

10-26-2010, 02:22 PM	#12
Dave Coyle Drives: 2010 SS , 1970 Z-28, 2002 Avalanche Join Date: Aug 2009 Location: Michigan Posts: 2,524 View My Garage	Pro Torque offers a custom built convertor built for your 2010 L99's that they say will knock .4 to .6 seconds off your quater mile time, stock motor or any modified one, doesn't matter, they build it for your specifications. Expect to pay about $600 - $700 for it. __________________ IF IT'S WORTH HAVING, IT'S WORTH WAITING FOR!!!! (AND IT WAS) 434RWHP/403RWTQ Livernois Motorsports 2C Cam kit Kooks 1 7/8 LT Headers/Hi-Flo Cats/Corsa Exhaust Roto-Fab CAI / Port Intake Precission 2400/2800 Converter/3.73 AAM gears Livernois Motorsports Tune Best time: 11.97 @ 117 MPH

10-26-2010, 02:39 PM	#13
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,846 View My Garage	IMO - a converter is the FIRST thing I'd do in my car. The caveat is that it should be matched to your combination, so if you already know what you're going to be doing, make sure to have it matched. I won't have another CAMARO (if it's an auto') without a stall. My old one was a 3800 through 3.23s and it was GREAT!!! Just make sure to get a good tune for the tranny to take advantage __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

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10-25-2010, 03:53 PM	#2
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	Insatlling a new TC is pretty straightforward on a 5th gen Camaro. And there is no "threshold". A good one properly matched to your car will drop your 1/4 mile ET 1/2 second or better BONE STOCK! Best mod for the money if quicker acceleration is your goal. The ones I use are all made to order, and it is not unusual to see .7sec improvement. I also will buy it back if not happy.

10-25-2010, 04:39 PM	#4
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	Germany is a bit far on the buy-back. LOL The stock converter would need upgraded when the cam grind gets to radical to idle low enough. Yank makes a good converter and for years it is all we used in our race LS cars, but we teamed with FTI a few years back and consistantly se 1-2 tenths quicker w/the new design and have yet to break one. All are built to the dyno sheet and mod specs from your car, nothing off the shelf and around the same price.

10-25-2010, 06:59 PM	#7
Slowhawk Drives: 1999 Trans Am Join Date: Jul 2009 Location: Bridgewater,Ma Posts: 2,018	A have to is when you have to set the idle speed over 650rpm.I know because mine is set to 650 and it is close to pushing. When you should get it- First mod.

10-25-2010, 07:00 PM	#8
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	The TC also puts you in the powerband quicker, sort of like a clutch dump on a standard trans.

10-26-2010, 01:38 PM	#9
Texaslegend Drives: Supercharged 2010 Camaro 2SS/RS Join Date: Aug 2010 Location: Longview Texas Posts: 56	are there any negatives to a new TC? As far as damaging drivetrain? How much does it affect driveability for an everyday driver?

10-26-2010, 01:59 PM	#10
SK360 Account Suspended Drives: 2005 Pontiac GTO Join Date: Jun 2009 Location: Pittsburgh, PA Posts: 591	It requires more pedal to get moving but depending on the rated stall speed they can be very streetable. You will hit your drivetrain harder due to the converter flashing higher but still nothing as bad as side stepping the clutch in a M6 car. My Vigilante 3200 feels stock to me anymore and makes me miss the Vigilante 3800 I used to have.