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New E55 Supercharger power pulley/clutch!

 
Old 11-13-2011, 03:42 PM
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Originally Posted by Exotic-metal55 View Post
168-170mm on power pulley 1 boost and 175mm- ish range on power 2 pulley size.

Bramage, no plans for a ECU clutch cheater but if you figure it out, I am subscribed!

I will have pictures up soon. The special coating will help cut down on belt slip and help with heat. (I have friends at NASA).
Have you seen the unique design of Goodyear's Gatorback belts? I've been using one with no complaints, but I have now way of knowing what the slippage factor is, if any.
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Old 11-13-2011, 05:31 PM
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Ive loved my SC Pulley on my C32. Best bang for the buck of any mod i have done to any car. I know when Code3 shut down, these were hard to come by.
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Old 11-13-2011, 05:34 PM
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B- Is this the same pulley being marketed by EC? I assume so, I know you guys are tight. Either way, the R&D you do and share is more awesome than I can say. I will pick one of these up for sure!! THANKS!!!
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Old 11-13-2011, 05:53 PM
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Originally Posted by Bramage View Post
B- Is this the same pulley being marketed by EC? I assume so, I know you guys are tight. Either way, the R&D you do and share is more awesome than I can say. I will pick one of these up for sure!! THANKS!!!
Nope! E55 S/C pulley being marketed? I am not aware of any E55 S/C pulley but this one. I have been real busy, so have not been hanging out with many vendors over the last year. Motor blew and no Texas mile, so even less hanging out...lol Just LSX dyno tuning, where i dyno and use Kurt`s shop.

I remember the code 3 C32 pulley (do not know much about C32`s)and I think others have made that kit but not an E55 pulley. If there was an E55 S/C pulley, then I could have just bought one, VS doing all this work and out lay of cash. The e55 S/C pulley is a lot different than the c32. Larger clutch plate, larger springs, larger bearings ngs, larger od pulley (90mm). Others that worked on this , said they could not take much material off to make it work. so, started from scratch on this one and used the S/C pulley off my extra motor to re-design.
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Old 11-13-2011, 06:10 PM
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Old 11-13-2011, 07:34 PM
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If I have a 180mm what would the blower pulley bump that to Brooke? What are the two size blower pulleys you are going to make?
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Old 11-13-2011, 07:36 PM
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Im a thread hog.. sue me. Not you Hadi!!


That would be equivalent to 186mm - 188mm but would spin up faster than a 190mm since the weight diff,,,


yea, you want it Craig. (Oh your poor wife!!)
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Old 11-13-2011, 07:57 PM
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Originally Posted by chawkins2001 View Post
If I have a 180mm what would the blower pulley bump that to Brooke? What are the two size blower pulleys you are going to make?

Let me complete the finite analysis and then I can decide the exact mm. Just wanted to give you a range.

Originally Posted by Bramage View Post
Im a thread hog.. sue me. Not you Hadi!!


That would be equivalent to 186mm - 188mm but would spin up faster than a 190mm since the weight diff,,,


yea, you want it Craig. (Oh your poor wife!!)

Bramage is correct, you will have the same boost as 186-190 but the motor will rev way quicker to max rpm. Waaaaaaaay quicker.
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Old 11-14-2011, 09:32 AM
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As I said, I am in
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Old 11-14-2011, 09:50 AM
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Originally Posted by Exotic-metal55 View Post
You get the pulley, high speed bearings and plate assembly.



BTW, I use Finite Element Analysis to maximize weight reduction and maintain strenght. This is the crucial engineering tool to make this pulley work on the E55 after all these years. Can you image how fast your blower/engine will rev up with a couple pounds less weight to spin at 15000 rpm deal with. One pound off would be like spinning 15000 less lbs a minute at WOT .
Great Im interested too.
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Old 11-14-2011, 10:26 AM
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is this the same thing? if so why hasnt EC promoted it?
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Old 11-14-2011, 11:49 AM
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Originally Posted by gaspam View Post
is this the same thing? if so why hasnt EC promoted it?
Just about, in the other thread Eurocharged said they "pulled the plug" on theirs since this one is coming out.

Eurocharged had some good pricing on their site with tuning, I hope these guys in texas come through
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Old 11-14-2011, 11:51 AM
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Originally Posted by gaspam View Post
is this the same thing? if so why hasnt EC promoted it?
It's not the same thing. This is 100% Brookes project and design.

As of last Friday, EC will not be moving forward with our SC pulley.

Sorry for the confusion!
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Old 11-16-2011, 09:35 AM
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Does anyone have the specs on the stock E55 pulley sizes?

I'm curious to know what the original diameters are for each of the pulleys. From the post above, it sounds like the S/C pulley is 90mm (stock). What is the stock crank pulley diameter? It seems strange that I've never come across it, but I only recall seeing threads that talk about the upgrades sizes (168, 172, 178, 180, 185, 190, etc). I don't recall ever seeing a post that says what the original factory pulley diameter is.

All this talk of changing pulleys is confusing enough when there is only one variable (lower crank pulley).... if/when there is a product that will allow the S/C pulley to also be swapped out, the number of combinations and end-results will be a lot harder to keep track of. I'd like to build an Excel spreadsheet that would plot the stock setup first, with the corresponding RPMs of each pulley though the rev range, then add in the various crank and S/C pulley options to show how they affect the supercharger RPMs vs. engine RPM. It seems like the key to all of it is getting the boost as quickly as possible in the rev range with the pulley combination that creates the smallest amount of parasitic drag on the motor.

I don't know if a more efficient pulley combination would also help alleviate the massive amounts of heat soak that normally occur, but obviously that would be a major benefit as well.

This whole topic is really interesting to me, and I'd like to play with some numbers to study the interrelationships between all of these pulleys.


-G
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Old 11-16-2011, 09:57 AM
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Whats going on with this? And same question as Chawkins whats the boost or totall mm going to be already having a 180?
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Old 11-16-2011, 10:32 AM
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Originally Posted by GregMB View Post
Does anyone have the specs on the stock E55 pulley sizes?

I'm curious to know what the original diameters are for each of the pulleys. From the post above, it sounds like the S/C pulley is 90mm (stock). What is the stock crank pulley diameter? It seems strange that I've never come across it, but I only recall seeing threads that talk about the upgrades sizes (168, 172, 178, 180, 185, 190, etc). I don't recall ever seeing a post that says what the original factory pulley diameter is.

All this talk of changing pulleys is confusing enough when there is only one variable (lower crank pulley).... if/when there is a product that will allow the S/C pulley to also be swapped out, the number of combinations and end-results will be a lot harder to keep track of. I'd like to build an Excel spreadsheet that would plot the stock setup first, with the corresponding RPMs of each pulley though the rev range, then add in the various crank and S/C pulley options to show how they affect the supercharger RPMs vs. engine RPM. It seems like the key to all of it is getting the boost as quickly as possible in the rev range with the pulley combination that creates the smallest amount of parasitic drag on the motor.

I don't know if a more efficient pulley combination would also help alleviate the massive amounts of heat soak that normally occur, but obviously that would be a major benefit as well.

This whole topic is really interesting to me, and I'd like to play with some numbers to study the interrelationships between all of these pulleys.


-G
stock crank is 154 i believe
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Old 11-16-2011, 11:07 AM
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just a heads up on boost bleeding.its part in the ecu and the other part is in the esp ecu and not even kleemann has cracked that yet.

Here is a tid bit from me asking cory if I can delete the traction control system all together.

Hey Angelo-

That's right where it should be- stochiometric is always what the car will shoot for in closed loop- there's no way around that. Once you go wide-open, it will go into open loop at 3200 RPM, at which point it starts running on it's fuel map, which, judging from your dyno, looks perfect.

The only way to truly verify it's doing that is to put a boost gauge on it, otherwise, it's just a guess. Boost pressure is a mechanical ratio between drive and driven pulleys- the file you have in your car already has altered bypass valve mapping which won't let it open to control peak boost pressure. If the bypass is indeed opening when you loose traction, I'm afraid there's no way to stop that from happening, as that function will be controlled by the ESP control unit- something our programmers have had zero luck trying to 'crack' (I don't think any tuner other than AMG knows how to alter ESP programming).

I'd honestly leave well enough alone and just be happy with the car- it's making awesome power for what you've done to it and I don't see any cause for alarm regarding lambda ratio's or power. I recently had a K4 E55 make 517 on my dyno, and the AFR curve looked nearly identical to yours. I also just got done with putting a supercharger on an older CLK55- that car's AFR curve also looked nearly identical.


:-)
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Old 11-16-2011, 11:28 AM
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angelo, so if the ESP is turned off then it doesnot control the bypass valve
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Old 11-16-2011, 11:32 AM
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Originally Posted by shardul View Post
angelo, so if the ESP is turned off then it doesnot control the bypass valve
Theres 2 areas that control bleeding boost,one is in the actual file on the ecu and then we has the nasty esp ecu that cuts power when the car thinks its losing traction(like if you are turning and punch it)it will still bleed boost to save your life.

We turned off the boost bleeding in the tune but when my car looses traction it still bleeds boost from the esp ecu and that is what kleemann is trying to crack to delete the whole traction control system.

even if you hit the traction button on the dash the car will still bleed boost if it thinks you are going to spin out.When I have traction in hot weather the car is a blast but now that its cold out up here Im blinking the traction button even with it pressed on the dash.

Last edited by skratch77; 11-16-2011 at 11:35 AM.
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Old 11-16-2011, 11:47 AM
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thanks for you input
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Old 11-16-2011, 11:55 AM
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How about dyno mode, I wonder if that will bleed boost??
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Old 11-16-2011, 11:58 AM
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I have to use dyno mode to just do a burn out at the track.03 cars and early 04s have a tame esp ecu and will let you smoke up the tires until the melt off the car.

try doing a burn out in my car and it just spin for a second and then bog bog wtf pedal to the floor bog lol.

I hate it and wish I could just turn the whole system off
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Old 11-16-2011, 12:01 PM
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That is what mine does too. I am running on Saturday at Silver Dollar Dragway in full dyno mode.
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Old 11-16-2011, 01:23 PM
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Originally Posted by skratch77 View Post
I have to use dyno mode to just do a burn out at the track.03 cars and early 04s have a tame esp ecu and will let you smoke up the tires until the melt off the car.

try doing a burn out in my car and it just spin for a second and then bog bog wtf pedal to the floor bog lol.

I hate it and wish I could just turn the whole system off
i can vouch for that my car is a 03 and I can light up the tires very eaisly.
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Old 11-16-2011, 01:34 PM
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Originally Posted by shardul View Post
i can vouch for that my car is a 03 and I can light up the tires very eaisly.
04 and can do a burnout for days.. Was at the track with Angelo and witnessed him not being able to do a burnout.
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