Choosing a torque converter - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Marotrent · 12-23-2019, 02:17 PM

Hey guys Im doing a little research on torque converters. I have a 2011 L99 with long tube headers, and CAI and I think my next mod will be the torque converter. I may be interested in adding some 3.91 gears and Cam swap next year so can anybody recommend some torque converters?

1fast · 12-23-2019, 02:53 PM

Quote:

Originally Posted by Marotrent

Hey guys Im doing a little research on torque converters. I have a 2011 L99 with long tube headers, and CAI and I think my next mod will be the torque converter. I may be interested in adding some 3.91 gears and Cam swap next year so can anybody recommend some torque converters?

Coanracing.com
I've spent so much money threw 30 years and always end back. best results Coan

Chris49066SS · 12-23-2019, 04:38 PM

The converter needs to be matched to the cam and your powerband. I have a Circle D 5C converter and the GPI SS4 cam. Mine flashes to 4800 RPM (my peak torque is at 4900 RPM) and then it spins up to where I make peak HP, which is at 7600 RPM, with the shifts never dropping below 6200 RPM. The combo of parts is key.

Marotrent · 12-23-2019, 05:05 PM

Quote:

Originally Posted by Chris49066SS

The converter needs to be matched to the cam and your powerband. I have a Circle D 5C converter and the GPI SS4 cam. Mine flashes to 4800 RPM (my peak torque is at 4900 RPM) and then it spins up to where I make peak HP, which is at 7600 RPM, with the shifts never dropping below 6200 RPM. The combo of parts is key.

https://www.glennsautoperformance.co...27-235-641-649

for this cam what would be a good torque converter

Chris49066SS · 12-23-2019, 05:20 PM

Quote:

Originally Posted by Marotrent

https://www.glennsautoperformance.co...27-235-641-649

for this cam what would be a good torque converter

I wouldn't go less than 2800-3000 stall with a PD supercharger. Look at Circle D, Yank, or Coan.

It wasn't in the original post, as to your build goals, but the converter that will be suitable for a PD blower setup will be less than ideal for a centri blower. I highly suggest calling a reputable shop like GPI, TSP, and talking with them for build recommendations.

A lot goes into the right choice of converter, i.e. type of boost, intended usage, powerband, how well built the motor and driveline already are.

Bo White · 12-24-2019, 02:57 AM

Ive had 2 friends run the Circle D 5c on FBO cars and they were a blast to drive.

LCPLPunk · 12-24-2019, 08:32 AM

Circle D for me!

1JEWLDSSRS · 12-24-2019, 09:08 AM

I have the TSP Stage 3 cam and all the supporting mods to go with it and am currently running a Precision 3200 stall in there. Like Bo told me after I did my cam swap I should do a bigger stall that a 3200 would be good for a stock setup, and he is right and am looking to go up to 4000 stall where the cam starts making power, 3200 is just not enough. And as Chris says, it all depends on what your plans are for the car. Good luck in your search sir..

Juiced1 · 12-24-2019, 09:51 AM

Are you going to boost the car? Your torque converter needs to be selected off the parts in the engine. So if you are adding a cam that is a huge part of what stall speed you select. Also, I see you're looking at a blower cam. Are you planning on doing a supercharger as well? That is also something you would need to consider when selecting a stall otherwise you will need to have it adjusted when changing your set up so significantly.

StingrayblueSS · 12-26-2019, 02:40 AM

I see a lot of people installing torque converters and having to go higher when they add a cam. I want to do the converter next spring but stay fbo for a year or so. What's the highest I should go with bolt one so I don't have to do it twice?

LCPLPunk · 12-26-2019, 01:32 PM

Depends on what cam you are gonna go with....I put a 3200 in and I have 3.91s and FBOs, but I wish i had gone bigger...maybe a 3600 or so.

Athletics101 · 12-26-2019, 08:00 PM

LCPLPunk and I have the same converter a Circle D 3200, I also wish I had went with a 3600-3800.

Bo White · 12-27-2019, 12:25 PM

I know a few with a 3800-4000 that wished they had more.

Chris49066SS · 12-27-2019, 12:32 PM

Quote:

Originally Posted by Bo White

I know a few with a 3800-4000 that wished they had more.

I need more

12-23-2019, 02:17 PM	#1
Marotrent Drives: 2011 Summit White Camaro SS Join Date: Feb 2018 Location: South Florida Posts: 142	Choosing a torque converter Hey guys Im doing a little research on torque converters. I have a 2011 L99 with long tube headers, and CAI and I think my next mod will be the torque converter. I may be interested in adding some 3.91 gears and Cam swap next year so can anybody recommend some torque converters?

12-23-2019, 04:38 PM	#3
Chris49066SS Drives: 2010 SS L99 Join Date: Sep 2018 Location: Missouri Posts: 1,634	The converter needs to be matched to the cam and your powerband. I have a Circle D 5C converter and the GPI SS4 cam. Mine flashes to 4800 RPM (my peak torque is at 4900 RPM) and then it spins up to where I make peak HP, which is at 7600 RPM, with the shifts never dropping below 6200 RPM. The combo of parts is key. __________________ Previous PB:11.079 @ 122.99mph.. New setup time: TBD The 11.079 pass: https://youtu.be/pz27Zq54t_E Build thread - www.camaro5.com/forums/showthread.php?t=555371

12-24-2019, 08:32 AM	#7
LCPLPunk USA-1 Drives: 2010 Camaro SS L99 Join Date: Jul 2016 Location: Near DC Posts: 1,893 View My Garage	Circle D for me! __________________ "A Camaro in the garage is safe, but that's not what Camaros are built for..." R2C CAI / Apex Scoop / VMAX Ported TB / Speed Engineering LTHs / X-pipe / GPI port/rod-mod intake manifold / Circle D 3200 278mm Converter / 3.91 gears / DynoSteve tuned / 1LE Shocks/Struts/Toe Links / ZL1 Rear Sway Bar / Z/28 Trailing arms / Prothane Radius Arm & Subframe Bushings / BMR UCA Bracket, Steering rack bushing / B&M Tranny Cooler / RX Catch Can / Jannetty Tranny Dipstick / 2012+ Heater Hose / 2013+ Rearview Mirror / Fuel rail flip / Drake shifter / Oil Cooler Delete

12-24-2019, 09:08 AM	#8
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,435	I have the TSP Stage 3 cam and all the supporting mods to go with it and am currently running a Precision 3200 stall in there. Like Bo told me after I did my cam swap I should do a bigger stall that a 3200 would be good for a stock setup, and he is right and am looking to go up to 4000 stall where the cam starts making power, 3200 is just not enough. And as Chris says, it all depends on what your plans are for the car. Good luck in your search sir.. __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.

12-26-2019, 02:40 AM	#10
StingrayblueSS Drives: 2013 Camaro SS Join Date: Feb 2017 Location: Indiana Posts: 901	I see a lot of people installing torque converters and having to go higher when they add a cam. I want to do the converter next spring but stay fbo for a year or so. What's the highest I should go with bolt one so I don't have to do it twice? __________________ 2013 Camaro SS Kooks Headers Vararam DRX 1le Differential 3.91 Bo White throttle body Magnaflow Competition Exhaust 12.391 112 MPH 10/05/19

12-24-2019, 02:57 AM	#6
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	Ive had 2 friends run the Circle D 5c on FBO cars and they were a blast to drive.

12-24-2019, 09:51 AM	#9
Juiced1 Account Suspended Drives: 2012 2SS CAMARO 45th Join Date: Apr 2011 Location: St. Charles, IL Posts: 18,663	Are you going to boost the car? Your torque converter needs to be selected off the parts in the engine. So if you are adding a cam that is a huge part of what stall speed you select. Also, I see you're looking at a blower cam. Are you planning on doing a supercharger as well? That is also something you would need to consider when selecting a stall otherwise you will need to have it adjusted when changing your set up so significantly.

12-26-2019, 01:32 PM	#11
LCPLPunk USA-1 Drives: 2010 Camaro SS L99 Join Date: Jul 2016 Location: Near DC Posts: 1,893 View My Garage	Depends on what cam you are gonna go with....I put a 3200 in and I have 3.91s and FBOs, but I wish i had gone bigger...maybe a 3600 or so. __________________ "A Camaro in the garage is safe, but that's not what Camaros are built for..." R2C CAI / Apex Scoop / VMAX Ported TB / Speed Engineering LTHs / X-pipe / GPI port/rod-mod intake manifold / Circle D 3200 278mm Converter / 3.91 gears / DynoSteve tuned / 1LE Shocks/Struts/Toe Links / ZL1 Rear Sway Bar / Z/28 Trailing arms / Prothane Radius Arm & Subframe Bushings / BMR UCA Bracket, Steering rack bushing / B&M Tranny Cooler / RX Catch Can / Jannetty Tranny Dipstick / 2012+ Heater Hose / 2013+ Rearview Mirror / Fuel rail flip / Drake shifter / Oil Cooler Delete

12-26-2019, 08:00 PM	#12
Athletics101 Drives: 5th Gen L99 Join Date: Nov 2017 Location: Lake Havasu City Posts: 244	LCPLPunk and I have the same converter a Circle D 3200, I also wish I had went with a 3600-3800. __________________ LSA conversion 2.5 upper 10% lower, L99 converted to LS3. TSP 229/244 cam, TSP LS3 ported and milled heads milled .015,Kooks LT’s no cats, Roto Fab, Borla arak cat back. 3200 stall,Forgestar F14 18’s and drag radials, pedders coil overs, BMR trailing arms & adjustable toe rods, mildly stripped Interior 685/613 on E 610/571 on 91

12-27-2019, 12:25 PM	#13
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	I know a few with a 3800-4000 that wished they had more.