700 HP Auto Trans problems - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Switch-Link · 08-22-2014, 03:00 PM

Does anyone have any experience seeing the auto trans flare or bounce off the rev limiter in between shifts? Almost sounds like a manual transmission getting knocked into neutral at WOT.. The car is supercharged, dyno's just under 700 RWHP. I've seen several other cars run this kind of power on stock trans with no issues. I JUST had the car built. No problems beforehand. And has anyone heard of problems with 2010 SS Auto transmissions?

Please help. Just dumped a boat load of money into my car and we all know transmissions aren't cheap. Thanks.

jbrown13 · 08-22-2014, 05:20 PM

I had a similar issue after my heads and cam install, and the installer's tuner couldn't solve the issue. Fired them and hired another tuner, Rhino79, and he solved the problem. IIRC, he thought the problem was being caused by the pump cavitating and what he did to solve it was raise the shift pressures and have me overfill the transmission by 1-1/2 to 2 quarts. No, the transmission did not blow fluid out the vent. Maybe he'll come along and correct me if I'm mistaken, and add to the story.

He also suggested I install a ZL1 transmission filter, which has a larger inlet opening than the SS filter. I bought the filter, but haven't installed it yet since the issue is gone. I'm going to have it installed when I ditch my cats later this year. Also having a dipstick installed on the transmission to correct GMs stupidity.

white ZL1 · 08-22-2014, 05:32 PM

Was going to say tuner and talk to Rhino. jbrown nailed it.
Hopefully it's not too late for your trans.

rrrocketman · 08-23-2014, 01:23 AM

Have you manually calibrated the pressure going to the pressure control solenoids? Have you increased line pressure in the torque tables? Sometimes with an auto shifting under high load, the shift will be delayed as the clutches and bands try to engage but slip and this can cause the RPMs to run away temporarily until it bites. If the soft parts aren't worn, it could just be a pressure issue. I had this problem and solved it completely by going to the FMC tables and upping the line pressure at the appropriate torque levels as well as installing HE band and clutches.

Chevrolade · 08-23-2014, 01:25 AM

It's the trans tune man I had the same problem before I got tuned by Ryan at GPI!problem solved!! Good luck

Switch-Link · 08-24-2014, 01:16 PM

Thanks guys, this is what I heard too. I talked to another Camaro5 guy and he too recommended Ryan (Rhino79). I did get ahold of him and when I get a second am going to data log some WOT passes and send him my tune. We'll see what happens. Keeping my fingers crossed. My trans feels ok driving at normal to slightly aggressive, but every once in awhile at WOT I get that flaring and weird shifting. I think Ryan will fix me up.

Appreciate the feedback.

Switch-Link · 08-24-2014, 01:30 PM

Any known good sources for beefy transmission for these cars? Or a completely different shifting system for drag racing that's not ridiculously expensive?

jbrown13 · 08-24-2014, 05:31 PM

Circle D in Houston, TX, and I imagine others, builds a beefy 6L80E transmission, but it is pricey.

Some guys with blower cars are switching to a built 4L80E transmission, which gets rid of the ridiculously low 1st gear. However, then it seems they require a lower rear gear for best times.

700 RWHP is pushing it with a stock 6L80E from what I have heard.

Switch-Link · 09-15-2014, 03:23 PM

***Update***

Ryan (Rhino-79) at Gwatney Performance did an amazing job solving my transmission woes. I was told I needed to buy a new transmission and spend $3k replacing something that just needed a tune.

Just like doctors, get a second opinion. Most tuners are afraid ofauto trans tunes abd just know the basics. If you want an absolute wizard working on your car, hit up Rhino-79.

Time to go get a ten second time slip. ��

white ZL1 · 09-15-2014, 05:40 PM

Quote:

Originally Posted by Switch-Link

***Update***

Ryan (Rhino-79) at Gwatney Performance did an amazing job solving my transmission woes. I was told I needed to buy a new transmission and spend $3k replacing something that just needed a tune.

Just like doctors, get a second opinion. Most tuners are afraid ofauto trans tunes abd just know the basics. If you want an absolute wizard working on your car, hit up Rhino-79.

Time to go get a ten second time slip. ��

Awesome!

08-22-2014, 03:00 PM	#1
Switch-Link Drives: 2010 Camaro SS/RS A6 LS3 conversion Join Date: Feb 2014 Location: UT Posts: 120	700 HP Auto Trans problems Does anyone have any experience seeing the auto trans flare or bounce off the rev limiter in between shifts? Almost sounds like a manual transmission getting knocked into neutral at WOT.. The car is supercharged, dyno's just under 700 RWHP. I've seen several other cars run this kind of power on stock trans with no issues. I JUST had the car built. No problems beforehand. And has anyone heard of problems with 2010 SS Auto transmissions? Please help. Just dumped a boat load of money into my car and we all know transmissions aren't cheap. Thanks.

08-23-2014, 01:23 AM	#4
rrrocketman youtube.com/c/ChrisCamaro Drives: 2013 Camaro SS w/ NPP and Hi Wing Join Date: Feb 2014 Location: Toronto Posts: 254	Have you manually calibrated the pressure going to the pressure control solenoids? Have you increased line pressure in the torque tables? Sometimes with an auto shifting under high load, the shift will be delayed as the clutches and bands try to engage but slip and this can cause the RPMs to run away temporarily until it bites. If the soft parts aren't worn, it could just be a pressure issue. I had this problem and solved it completely by going to the FMC tables and upping the line pressure at the appropriate torque levels as well as installing HE band and clutches. __________________ https://youtube.com/c/ChrisCamaro

08-24-2014, 01:30 PM	#7
Switch-Link Drives: 2010 Camaro SS/RS A6 LS3 conversion Join Date: Feb 2014 Location: UT Posts: 120	Any known good sources for beefy transmission for these cars? Or a completely different shifting system for drag racing that's not ridiculously expensive? __________________

09-15-2014, 03:23 PM	#9
Switch-Link Drives: 2010 Camaro SS/RS A6 LS3 conversion Join Date: Feb 2014 Location: UT Posts: 120	*Update* Ryan (Rhino-79) at Gwatney Performance did an amazing job solving my transmission woes. I was told I needed to buy a new transmission and spend $3k replacing something that just needed a tune. Just like doctors, get a second opinion. Most tuners are afraid ofauto trans tunes abd just know the basics. If you want an absolute wizard working on your car, hit up Rhino-79. Time to go get a ten second time slip. �� __________________

08-22-2014, 05:20 PM	#2
jbrown13 Drives: 2011 Camaro SS L99 Join Date: Jan 2012 Location: Perry, GA Posts: 553	I had a similar issue after my heads and cam install, and the installer's tuner couldn't solve the issue. Fired them and hired another tuner, Rhino79, and he solved the problem. IIRC, he thought the problem was being caused by the pump cavitating and what he did to solve it was raise the shift pressures and have me overfill the transmission by 1-1/2 to 2 quarts. No, the transmission did not blow fluid out the vent. Maybe he'll come along and correct me if I'm mistaken, and add to the story. He also suggested I install a ZL1 transmission filter, which has a larger inlet opening than the SS filter. I bought the filter, but haven't installed it yet since the issue is gone. I'm going to have it installed when I ditch my cats later this year. Also having a dipstick installed on the transmission to correct GMs stupidity.

08-22-2014, 05:32 PM	#3
white ZL1 Drives: none Join Date: Aug 2011 Location: DFW area Posts: 1,844	Was going to say tuner and talk to Rhino. jbrown nailed it. Hopefully it's not too late for your trans.

08-23-2014, 01:25 AM	#5
Chevrolade Account Suspended Drives: 2010 2SS/RS Join Date: Jan 2013 Location: Texas Posts: 1,050	It's the trans tune man I had the same problem before I got tuned by Ryan at GPI!problem solved!! Good luck

08-24-2014, 01:16 PM	#6
Switch-Link Drives: 2010 Camaro SS/RS A6 LS3 conversion Join Date: Feb 2014 Location: UT Posts: 120	Thanks guys, this is what I heard too. I talked to another Camaro5 guy and he too recommended Ryan (Rhino79). I did get ahold of him and when I get a second am going to data log some WOT passes and send him my tune. We'll see what happens. Keeping my fingers crossed. My trans feels ok driving at normal to slightly aggressive, but every once in awhile at WOT I get that flaring and weird shifting. I think Ryan will fix me up. Appreciate the feedback.

08-24-2014, 05:31 PM	#8
jbrown13 Drives: 2011 Camaro SS L99 Join Date: Jan 2012 Location: Perry, GA Posts: 553	Circle D in Houston, TX, and I imagine others, builds a beefy 6L80E transmission, but it is pricey. Some guys with blower cars are switching to a built 4L80E transmission, which gets rid of the ridiculously low 1st gear. However, then it seems they require a lower rear gear for best times. 700 RWHP is pushing it with a stock 6L80E from what I have heard.