What Torque Converter with Procharger

cjperformance · 09-07-2021, 01:39 PM

So the A8 shudder is back. Had the flush done approx @ 10K miles. I now have about 25K miles. No warranty obviously at this point.

Was going to put a new converter in myself. I've done this many times on oldschool TH350 and 700R4. Watched some vids, looks like nothing much has changed with the process.

Was thinking of a new Circle D with a stall around 2500??? maybe as much as 3000??

90% of the time I use the car for fun on the street... the other 10% as my backup daily driver.

Want to keep the stall on the more tame side, but something that will leave room for improvement later.

Looking for suggestions on what I should be considering in my choice.

2017 SS + P1X Procharger + 305/30R20 NT05 rear tires (currently) Will be upgrading to actual DR in the near future.

KingLT1 · 09-07-2021, 06:02 PM

Centri cars like a little more converter...I would contact Circle D or FTI and tell them what you are looking to do. My guess is a 3200 for a daily, 3600 for street/strip.

danhr · 09-07-2021, 07:00 PM

I went with a pray performance spelled circle D unit. Keeping it the same with the new setup, so should be able to hit 8s with it

grampa_ss · 09-09-2021, 09:10 PM

I have the Circle D 258mm Pro Series 3200-3400. I daily drive it. Drives fine. The most important thing is to find a tuner that knows how to do converters. Definitely look at the fast guys and see who they use. I had a trans tune for the stock converter, then upgraded to a Circle D. Had to get a new tune (same tuner). I compared the 2 and let me tell you, they are very different. very very different.

cjperformance · 09-10-2021, 08:39 AM

Great point regarding the tune. Did a little research this morning, sounds like there's a lot more people familiar with engine tuning, and less with trans tuning....

Anyone know who might be able to do a good tune on this in the St. Louis area?

Or alternately, anyone who can do a remote tune? I can start reaching out to one's I've seen mentioned on this board, but grateful for any suggestions on a starting point.

ZO6Ted · 09-10-2021, 08:11 PM

My tuner Sam Miller at AMP in Grand Prairie TX. Has a PC 13-1400whp DD C7.He's great with 6-8spds. Probably 4's-10's if I know him. He won't allow it to get hurt. I said DD may be a wkend driver lol.

SSUNDVL · 09-11-2021, 01:36 PM

Sam Miller tunes some of the fastest Gen V's, Pat G has done excellent on my tunes, engine and trans out of Katy, TX but also does remote. I used to be weary on remote and now I actually prefer it due to how much the dial in drivability, wot and everything else with all the revisions.

09-07-2021, 01:39 PM	#1
cjperformance Drives: 2017 Camaro SS 50th Anniversary Join Date: Apr 2021 Location: Missouri Posts: 950	What Torque Converter with Procharger So the A8 shudder is back. Had the flush done approx @ 10K miles. I now have about 25K miles. No warranty obviously at this point. Was going to put a new converter in myself. I've done this many times on oldschool TH350 and 700R4. Watched some vids, looks like nothing much has changed with the process. Was thinking of a new Circle D with a stall around 2500??? maybe as much as 3000?? 90% of the time I use the car for fun on the street... the other 10% as my backup daily driver. Want to keep the stall on the more tame side, but something that will leave room for improvement later. Looking for suggestions on what I should be considering in my choice. 2017 SS + P1X Procharger + 305/30R20 NT05 rear tires (currently) Will be upgrading to actual DR in the near future.

09-07-2021, 06:02 PM	#2
KingLT1 Drives: 2016 1SS NFG A8 Join Date: Aug 2017 Location: 46804 Posts: 7,643	Centri cars like a little more converter...I would contact Circle D or FTI and tell them what you are looking to do. My guess is a 3200 for a daily, 3600 for street/strip. __________________ 2016 NFG SS A8/Whipple 2.9/Fuel System/Flex Fuel

09-07-2021, 07:00 PM	#3
danhr BAMF SS Drives: 2016 Camaro 1SS A8 Join Date: Mar 2010 Location: Ford City, PA Posts: 3,024	I went with a pray performance spelled circle D unit. Keeping it the same with the new setup, so should be able to hit 8s with it __________________ 2016 1SS A8: FBO + Circle D + P1X + Meth + Tuned by Pray Performance Stock Longblock 800 SAE rwhp. 9.4 @ 145 mph.

09-09-2021, 09:10 PM	#4
grampa_ss Drives: 2016 Camaro 2SS Join Date: Apr 2017 Location: Stansbury Park, Utah Posts: 1,102	I have the Circle D 258mm Pro Series 3200-3400. I daily drive it. Drives fine. The most important thing is to find a tuner that knows how to do converters. Definitely look at the fast guys and see who they use. I had a trans tune for the stock converter, then upgraded to a Circle D. Had to get a new tune (same tuner). I compared the 2 and let me tell you, they are very different. very very different. __________________ 2016 2SS, MRC, NPP, A8. Procharger P-1X,Stage II,std bypass, 3.9, Alky Meth - 10.84 @129 - DA+2000 New Mods - GPI drop ins, Kooks 2", LT4 fueling, Cam, Circle D Converter, 3.5 pulley & dual nozzle meth.

09-10-2021, 08:39 AM	#5
cjperformance Drives: 2017 Camaro SS 50th Anniversary Join Date: Apr 2021 Location: Missouri Posts: 950	Great point regarding the tune. Did a little research this morning, sounds like there's a lot more people familiar with engine tuning, and less with trans tuning.... Anyone know who might be able to do a good tune on this in the St. Louis area? Or alternately, anyone who can do a remote tune? I can start reaching out to one's I've seen mentioned on this board, but grateful for any suggestions on a starting point.

09-10-2021, 08:11 PM	#6
ZO6Ted Old badass Drives: 14GMC 2.9 16GMC Turbos 2020Silv.6.2 Join Date: Mar 2020 Location: Arlington Tx Posts: 270	My tuner Sam Miller at AMP in Grand Prairie TX. Has a PC 13-1400whp DD C7.He's great with 6-8spds. Probably 4's-10's if I know him. He won't allow it to get hurt. I said DD may be a wkend driver lol.

09-11-2021, 01:36 PM	#7
SSUNDVL Drives: 2016 Camaro SS Join Date: Jul 2020 Location: Dallas, TX Posts: 149	Sam Miller tunes some of the fastest Gen V's, Pat G has done excellent on my tunes, engine and trans out of Katy, TX but also does remote. I used to be weary on remote and now I actually prefer it due to how much the dial in drivability, wot and everything else with all the revisions.

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