6L90 HP capacity - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

IKILLEDSUPERMAN_ZL1 · 03-06-2022, 08:11 AM

I'm swapping in a 6L90 out of a 13 CTSV while I'm building the new motor. Who hear is using a 6L90 and what if any internal upgrades have you done? My goal is 750+ rwhp and 1000 hp in the future. I'm looking at the Circle D level 4 kit.

4SFED6.0 · 03-12-2022, 02:40 PM

The 6l90 is a very stout trans if tuned correctly, mine held up to almost 850whp with quiet a bit of abuse. I did finally have it gone through but it wasnt actually giving me any trouble when I pulled it, I just didnt want any issues during the season as I was going to turn the car up quiet a bit.

IKILLEDSUPERMAN_ZL1 · 03-12-2022, 03:29 PM

That's good to know!

JMI · 03-13-2022, 03:43 PM

I've pushed mine up to 1100RWHP and 200mph runs(airport) with a bone stock 6L90.
It does have a Circle D triple disk converter ( locked at WOT).
Been running it like that for 4 seasons now. no issues.
My buddie's CTS-V makes 850-880 RWHP all day long and it's also bone stock w/ the factory converter.

IKILLEDSUPERMAN_ZL1 · 03-19-2022, 11:30 AM

Man these things are stout. Makes me question if I need to upgrade it with the Circle D stage 3 kit I've been looking at. I just want to do it now since it's not in the car yet and not worry about the transmission in the future.

03-06-2022, 08:11 AM	#1
IKILLEDSUPERMAN_ZL1 Drives: 2011 Camaro SS Join Date: Jul 2017 Location: Wichita,KS Posts: 603	6L90 HP capacity I'm swapping in a 6L90 out of a 13 CTSV while I'm building the new motor. Who hear is using a 6L90 and what if any internal upgrades have you done? My goal is 750+ rwhp and 1000 hp in the future. I'm looking at the Circle D level 4 kit. __________________ 2011 Camaro 2SS, 6.0 iron block forged bottom end, Dart heads, BTR intake, Huron twin turbo kit, Summit stage 3 twin turbo cam, Circle D stage 4 6L90, 3800 FTI converter. BMR suspension, Viking coil overs, Fore triple pump fuel system.

03-12-2022, 02:40 PM	#2
4SFED6.0 Drives: 1991 Camaro Join Date: Apr 2012 Location: Detroit MI Posts: 261	The 6l90 is a very stout trans if tuned correctly, mine held up to almost 850whp with quiet a bit of abuse. I did finally have it gone through but it wasnt actually giving me any trouble when I pulled it, I just didnt want any issues during the season as I was going to turn the car up quiet a bit. __________________ 2011 SS Twin Turbo Forged LS9/6L90E Runs 9's

03-12-2022, 03:29 PM	#3
IKILLEDSUPERMAN_ZL1 Drives: 2011 Camaro SS Join Date: Jul 2017 Location: Wichita,KS Posts: 603	That's good to know! __________________ 2011 Camaro 2SS, 6.0 iron block forged bottom end, Dart heads, BTR intake, Huron twin turbo kit, Summit stage 3 twin turbo cam, Circle D stage 4 6L90, 3800 FTI converter. BMR suspension, Viking coil overs, Fore triple pump fuel system.

03-13-2022, 03:43 PM	#4
JMI Drives: Red Jewel Camaro SS Join Date: Mar 2014 Location: East Coast Posts: 394	I've pushed mine up to 1100RWHP and 200mph runs(airport) with a bone stock 6L90. It does have a Circle D triple disk converter ( locked at WOT). Been running it like that for 4 seasons now. no issues. My buddie's CTS-V makes 850-880 RWHP all day long and it's also bone stock w/ the factory converter. __________________ BTR LSX388,AGP Twin Turbo.6L90,GM 9.9" Diff.Fore Innovations Level 4 fuel system.Great fuel economy !!!! 1xxx RWHP Last edited by JMI; 03-19-2022 at 07:47 PM.

03-19-2022, 11:30 AM	#5
IKILLEDSUPERMAN_ZL1 Drives: 2011 Camaro SS Join Date: Jul 2017 Location: Wichita,KS Posts: 603	Man these things are stout. Makes me question if I need to upgrade it with the Circle D stage 3 kit I've been looking at. I just want to do it now since it's not in the car yet and not worry about the transmission in the future. __________________ 2011 Camaro 2SS, 6.0 iron block forged bottom end, Dart heads, BTR intake, Huron twin turbo kit, Summit stage 3 twin turbo cam, Circle D stage 4 6L90, 3800 FTI converter. BMR suspension, Viking coil overs, Fore triple pump fuel system. Last edited by IKILLEDSUPERMAN_ZL1; 03-19-2022 at 12:14 PM.