Exotic-metal55

Well said and converters are one of the least understood mods but one of the best ways to multi torque and keep a big car in the peak power band. One reason, so many people have used them and kept them secret for years Dennis car is a beast and I bet can boil the tires at will! Power mods or street strip converter = need more traction. Dennis is just showing some laws of physics, more power = need more traction = more fun

As you mentioned, a stall converter for a N/A 6.0 litre would need to be much higher to meet that cars power curve and even a 4000 rpm 6.0 stall runs great on the street. I also have run many 4000 to 4500 locking stalls in big N/A engines on the street and love them. As with any engine, the converter has to be matched to the engine and a boosted engine needs to be set up different than an N/A engine.

Dennis and your converter are built for your engines power curve. They have 3 raybestos lock up clutches VS the weak mercedes 2 clutch set up, race bearings and stronger internal pump / stator set up. They are a true street/strip converter built for the 55 Kompressor engine.

Now, before these new 3000 stall converters came out a few years ago, some people took short cuts and sent thier stock , big heavy , 2 clutch pack converter in to some shop to modify it. What that means, is they bend the stator fins over and you get a low stall, weak ,heavy converter that does not do much.

blackbenzz

Good info. Maybe it would help if you provided some 60' data. To my knowledge. All the quickest E55 60's have no stall converter just the "weak" factory converter.

Circle D does make good converters

I'm not saying a converter doesn't help. Would just like to see results. These have been tested many times by now right?

shardul

iTrader: (1)

contact Circle D and see who they refer you too

99lightning

when my buddy buys the circle d for his ls turbo builds the man said to him try and break my convertor. blackbenz didn't I provide the data under no traction conditions.

Denroll

I should be hitting the track this Saturday. More data to be had. My stock converter did not like being brake torqued much at all. Anything over 1200 rpm and it was either pushing through the brakes or trying to do another burnout. I have probably 75 runs or more on my car and have experimented with a lot of different launch techniques and tire pressures with pretty consistent results. A majority of the 60' times were in the 1.8x range with the bad ones being 1.9x, the good being high 1.7x, and my best being 1.76 sec. I know, not very impressive at all considering my mods. I am very confident this converter will help me launch hard. I've already verified that I can brake torque it to 2,000 rpm without any funny business. I need to practice a bit and see how high I can hold it before it wants to break free.

Georgee6086

I have put approx 300km on the car since my last post ( 3 days of driving) and the TCU has adapted! No more rpm fluctuation, no more confused shifts, the car drives absolutely incredible! I should have been a little more patient in the beginning. UPD torque converter

I think this is a great upgrade (drive ability wise) from the stock convertor. Much much smoother now.

As for very aggressive street driving I also think the car pulls away quicker now.

I think anybody planning or contemplating this mod that primarily drives on the street should really consider a stickey tire with as much sidewall as possible to gain the actual upgraded performance. I also think that lower hp cars ( under 500rwhp) will benifit more than higher powered cars due to lack of traction.

In a nut shell if you can put the power to the ground regardless of your hp, this is definitely a performance upgrade and will make your car faster. The only reported side effect is better driveability

Denroll

That's why 99lightning's 60' times on his car with stock pulleys was pulling better 60' times than mine.

Exotic-metal55

We keep 15-20 converters in stock all the time to keep up with our same day shipping program for customers and dealers. Our conveters are exclusively MFG for us and we us proprietary pump set ups for our Supercharged engines. There are hundreds of them in cars in over 18 countries. I will post a side by side pic in a little while.

Denroll

I thought the new converter was heavy... until I picked up the stock one after the swap. It's just massive.

blackbenzz

I already know where you've been getting them from. Hence my post. I've known for many years.
Yea Circle D makes good stuff. I haven't broken my modified stock converter and make more power than most 55s around. Data under no traction = how many times the triangle blinks with ESP on = useless.
Nice! Look forward to your results. If the stall is 3000 you should be able to hold the brake and rev it to 3000rpm. Hopefully you can cut 1.4X 60's since you're heavily modded and have tires. Just like stock converter cars have done
Good to hear. Glad it cleared up for you

Hulk

Blackbenz I have no dog in this fight at all , you hate these guys that's fine but every single time someone likes one of their products without you even having tried with first hand experience you feel the need to bash. You say you hate haters, how do you think you look like? Let it go bro

shardul

iTrader: (1)

oh i am sure you do. you just wanted to post it up lol

BTW they forwarded me your query hahahaha... goes straight to trash box

blackbenzz

I'm asking for results. Is that bashing? I don't have to have it on my car to have had first hand experience with a product. Hundreds of them in cars in different countries but no results? I will just wait to see some results. Have a nice day

shardul

iTrader: (1)

check your PM Hulk for a good laugh

Denroll

Thanks for the words of encouragement, even if they come wrapped in passive-aggression

Exotic-metal55

Stock heavy converter on the scale and ruler.



purpose built 722.6 blower converter on the scale and ruler. 33% lighter is huge, when hanging off the back of the crank and then add torrington bearings to speed up rev time and effeciency .



side by side

HeissRod

Just out of curiosity, what is the stall speed of the stock converter? I hope I asked that correctly as I'm not that familiar with auto trans inner workings.

ygha

Is the BIP stall converter same as the UPD stall converter?

BI-Performance

Yes sir, both of us can give you a good deal, and get you that neck snapping launch

blackbenzz

Did you start a new thread with results?

Bramage

He did not go to the track because he stubbed his vagina

Denroll

That track day ended up being a charity event, not a test and tune. Didn't go to the track yet.

shardul

iTrader: (1)

https://mbworld.org/forums/6115884-post5.html

RAWE55

I still cant get over this mod. Of everything i have ever done to the E55, the High Stall wins hands down every time! I come out shaking after beating on the car. If that doesnt tell you enough about what mod you should do next, the brown stains left by passengers on my seats will. I had a car load full today. 5 people. Total combined extra weight about 460-470kgs. Give or take. Not one difference was made. With engine under load I was still sliding right through 3rd gear with traction off just like iw ould on my own. Failing to realise how fast i was going at one stage, trying to keep myself on the road and not in someones living room, i glanced down and the car had me literally right up to 100km/h with the rear end kicking out all over the shop on a suburban road. Fair to say the guys i had in the car have driven and been in there fair share of fast cars during their life time, so for them to say that the E was the scariest thing they have been in was a true compliment. And something i would like to thank, Brooke, Shardul and UPD for, without the stall this car wouldnt be nearly as fun to drive. Im sure Denroll would back the claim. Fair enough the factory T/C still holds its own, but until you drive or go into a car with someone who has the stall you wont know what your missing. Its night and day difference. Anyone can watch Denrolls burnout video up to 70mph still painting lines. The engine just revs up so fast with the reduced rotating mass and laying into it you can hear the stall, sounds F*****ng insane. Pulley, Stall, Headers, Cooling and Tune! Mod list for any newbie to this platform and your set!

cij911

OK, sorry in advance, but I don't understand why everyone "loves" this modification so much, other than it makes the car "feel" quicker. Here are my concerns :

(1) The fastest e55s are still running factory TC.
(2) The 3000 stall will just make launching the car more impossible....The standard e55 will lay rubber to ~60 mph if you just mash the pedal.
(3) More heat build up in the transmission...Are folks adding a larger pan or additional coolers?
(4) I understand for WOT driving how this modification could be beneficial for a highly modified car, but what about low throttle / around town drivability ?
(5) Do our cars have lockup clutch ? (I don't believe they do.)

I don't mean to rain on anyone's parade, but just don't understand automatics / TC that well....