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Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 05-21-2018, 09:22 AM
Replies: 22
Views: 6,247
Posted By Circle-D_Brian
We rate our HP Series converter to handle about...

We rate our HP Series converter to handle about 550whp, and our Pro Series units (depending on diameter) are efficient up to around the 1000whp range.

-Brian
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 07-12-2016, 04:06 PM
Replies: 9
Views: 1,588
Posted By Circle-D_Brian
High altitude makes sense. I would go with our...

High altitude makes sense. I would go with our 245mm 5C like IneedAZ was running. Should do the trick. You have your choice of single disk or triple disk lockup. Did you have a preference there?
...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 07-12-2016, 02:26 PM
Replies: 9
Views: 1,588
Posted By Circle-D_Brian
A 4000 stall converter will make a huge...

A 4000 stall converter will make a huge difference and bring you really close to being in the 12 second e.t range. That said, given your modifications, it seems a bit radical. Is this a daily driver,...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 07-12-2016, 11:27 AM
Replies: 9
Views: 1,588
Posted By Circle-D_Brian
Is your wife's car the one in your sig, or...

Is your wife's car the one in your sig, or something different? Regardless, we would be happy to help spec a converter that will suit your needs.

-Brian
Forum: Forced Induction - V8 06-21-2016, 04:00 PM
Replies: 30
Views: 4,826
Posted By Circle-D_Brian
A loose converter on the dyno often can...

A loose converter on the dyno often can contribute to low numbers. Just to verify it's not blowing through the converter you should see somewhere between 800-1000 rpm drop on the 2-3 gear change at...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 06-17-2016, 09:50 AM
Replies: 12
Views: 1,935
Posted By Circle-D_Brian
I agree with the above comments. Something in the...

I agree with the above comments. Something in the low 3k range might be good with the stock cam. Our 2C would flash around 32-3400 rpm and get you solidly into the 12's at the drags while retaining...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 03-07-2016, 01:37 PM
Replies: 2
Views: 1,560
Posted By Circle-D_Brian
That bold portion looks like it could have come...

That bold portion looks like it could have come from our website...The 298mm converter is used on 700r4's and early model 4l60's. What are the specs on this vehicle?

-Brian
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 02-11-2016, 12:51 PM
Replies: 11
Views: 2,564
Posted By Circle-D_Brian
Skullcandy, we also have an HP series 245mm...

Skullcandy, we also have an HP series 245mm torque converter for your LFX. It features an oversized 258mm single billet lockup piston, furnace brazed pump and turbine, hand TIG welded fins and your...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 01-04-2016, 10:44 AM
Replies: 14
Views: 3,624
Posted By Circle-D_Brian
I believe G Force uses a Dyno Jet which would not...

I believe G Force uses a Dyno Jet which would not be load bearing unless something's changed since I was there last.

-Brian
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 12-29-2015, 09:50 AM
Replies: 14
Views: 3,624
Posted By Circle-D_Brian
3400 rpm shouldn't be too loose for a...

3400 rpm shouldn't be too loose for a street/strip ride, but we have seen issues on unloaded dynos with unlocked converters. It can be tough to tune. The multi disk would give you cruising and WOT...
Forum: Dragstrip and Launch Techniques Discussion 11-25-2015, 01:07 PM
Replies: 11
Views: 2,091
Posted By Circle-D_Brian
^^ looking good. OP, if you ever need anything,...

^^ looking good. OP, if you ever need anything, let us know.

-Brian
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 11-17-2015, 11:04 AM
Replies: 2
Views: 1,012
Posted By Circle-D_Brian
Welcome to the club. Did you order through...

Welcome to the club. Did you order through Gwatney?

-Brian
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 10-20-2015, 01:16 PM
Replies: 20
Views: 6,608
Posted By Circle-D_Brian
We offer a billet triple disk converter for this...

We offer a billet triple disk converter for this transmission. We do also have an HP series converter for more of a mild setup.

-Brian
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 10-08-2015, 11:18 AM
Replies: 52
Views: 16,127
Posted By Circle-D_Brian
We have a really cool non lockup billet front...

We have a really cool non lockup billet front cover we use to eliminate the need for spacers and adapters. It has all 3 GM bolt patterns on it so you can fit whatever flexplate you need, and we...
Forum: Forced Induction - V6 07-22-2015, 05:03 PM
Replies: 1,899
Views: 344,675
Posted By Circle-D_Brian
Just found this thread. We did a 245mm 5C which...

Just found this thread. We did a 245mm 5C which is usually around a 4000 flash rpm at around 400 hp and similar torque. Are you sure this is the flash rpm and not the footbrake rpm? Like you said...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 07-22-2015, 04:37 PM
Replies: 8
Views: 1,484
Posted By Circle-D_Brian
Most modern transmissions have a lockup clutch in...

Most modern transmissions have a lockup clutch in the torque converter. In an OE application it is used to lower/eliminate converter slip to improve MPG. For what we do, a multi disk lockup can be...
Forum: Forced Induction - V6 07-16-2015, 12:04 PM
Replies: 212
Views: 28,993
Posted By Circle-D_Brian
Sounds fun! Let us know if you need a converter...

Sounds fun! Let us know if you need a converter to spool up a little easier.

-Brian
Forum: Dragstrip and Launch Techniques Discussion 06-24-2015, 02:52 PM
Replies: 44
Views: 6,662
Posted By Circle-D_Brian
Lol. A converter swap would knock off a solid...

Lol. A converter swap would knock off a solid .2-.3 or even more possibly depending on what you get. If we can be of any help let us know. We have some great budget oriented choices.

-Brian
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 06-03-2015, 08:43 AM
Replies: 15
Views: 4,128
Posted By Circle-D_Brian
The converter that you have in that link is our...

The converter that you have in that link is our favorite for daily driving duty. It's got a large 278mm diameter for nice street manners and in the 3000-3200 stall speed, it will pop you into the...
Forum: 5th Gen Camaro SS LS LT General Discussions 04-24-2015, 10:51 AM
Replies: 18
Views: 5,826
Posted By Circle-D_Brian
Big misconception with the high stall converter...

Big misconception with the high stall converter is you will have to reach the stall speed before the vehicle moves. This is not the case, but it will require more pedal effort than stock to achieve...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 04-21-2015, 03:12 PM
Replies: 12
Views: 6,204
Posted By Circle-D_Brian
Some of the trucks are also being equipped with...

Some of the trucks are also being equipped with the 8l90. Those will have a traditional bellhousing and should fit these cars. Not sure how physically large it is and what you would have to do to...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 04-15-2015, 10:59 AM
Replies: 7
Views: 2,461
Posted By Circle-D_Brian
PSJ is right on the money. We are just trying to...

PSJ is right on the money. We are just trying to take advantage of the power the car already makes. The single disk converter is designed for application of the torque converter clutch under part...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 04-14-2015, 05:21 PM
Replies: 25
Views: 4,331
Posted By Circle-D_Brian
When going to a smaller diameter converter you...

When going to a smaller diameter converter you will generally sacrifice a bit of drivability in lieu of performance. We build the converter with the correct heights, dimensions, bolt pattern and...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 04-11-2015, 09:56 AM
Replies: 5
Views: 1,660
Posted By Circle-D_Brian
The torque curve would be nice to look at, but...

The torque curve would be nice to look at, but based on other similar setups we have done, I would say a 3200 in the proper diameter would be the best choice for a street/strip application. You will...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 04-10-2015, 09:44 AM
Replies: 5
Views: 1,660
Posted By Circle-D_Brian
This will depend on a few things...Turbo specs,...

This will depend on a few things...Turbo specs, Cubic inches, Trans type, Gearing, Weight, Intended usage and so on. I will say generally the twin turbo setups don't need as much stall rpm as a large...
Forum: Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons 03-24-2015, 09:49 AM
Replies: 6
Views: 1,419
Posted By Circle-D_Brian
The higher stall converters like stated above...

The higher stall converters like stated above will help you get into the power band quicker and take advantage of the power the car already makes. Even a stock/bolt on 5th gen will benefit from a...
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 03-23-2015, 11:24 AM
Replies: 25
Views: 4,331
Posted By Circle-D_Brian
PSJ, Glad to hear the converter drives...

PSJ,

Glad to hear the converter drives decently. Looking forward to results especially locked vs unlocked.

-Brian
Forum: Vendor and Seller review / feedback / experiences 03-17-2015, 05:43 PM
Replies: 3
Views: 1,272
Posted By Circle-D_Brian
Glad everything is working well for you, and we...

Glad everything is working well for you, and we are happy that you are a raving fan.

-Brian
Forum: V8 and V6 Transmissions / Driveline (6L80 / 6L50 / TR6060 / AY6) 10-08-2014, 05:24 PM
Replies: 6
Views: 1,390
Posted By Circle-D_Brian
The 245mm 4 and 5c converters are great for a...

The 245mm 4 and 5c converters are great for a naturally aspirated setup. When you go power adder I would prefer to see you in the 258mm diameter. This is pretty much a whole different converter.
...
Forum: Tuning / Diagnostics -- engine and transmission 10-08-2014, 04:19 PM
Replies: 6
Views: 1,822
Posted By Circle-D_Brian
Here at Circle D Specialties, we have done...

Here at Circle D Specialties, we have done extensive testing with the members of this community to produce our interpretation of the "best" 6l80 converter possible. If you shoot us an email, we can...
Showing results 1 to 30 of 38

 
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