Fixed Pulley Review and Findings...
#26
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05 White Pano E55, Cadillac CTS-V
Shifter I thought you were an MB tech or something? I would think you would know more about these cars. The supercharger isn't engaged under a certain throttle position angle and load. Have you even ever logged your car? I felt the need to show you in a video since I don't think you still believe what people are saying.
I went out and got on the highway running around 80mph and almost 90 as I was slowly accelerating and the car isn't making boost because the clutch is not engaged. That is the whole purpose of the clutch being their as part of the design, to aid against heat if there is a problem to shut the blower off and that along with the bypass valve to also make no boost and get better fuel mileage while cruising.
The video isn't the best since the camera phone kept needing to focus going back and forth but you can see it running like -6.5psi at the beginning aka vacuum and not in boost, kind of hard to see in the video at the end due to the poor focusing and lower quality of video from photobucket.
And for what it is worth, my CTS-V that has a "clutchless" pulley by design shows zero boost as well with only a bypass valve at high speeds if you are just cruising, even if I am going 85mph.
Might want to actually have facts before you start making statements that are not facts while trying to show them as such. To much dang misinformation gets thrown around.
http://s8.photobucket.com/user/Urbam...3047f.mp4.html
I went out and got on the highway running around 80mph and almost 90 as I was slowly accelerating and the car isn't making boost because the clutch is not engaged. That is the whole purpose of the clutch being their as part of the design, to aid against heat if there is a problem to shut the blower off and that along with the bypass valve to also make no boost and get better fuel mileage while cruising.
The video isn't the best since the camera phone kept needing to focus going back and forth but you can see it running like -6.5psi at the beginning aka vacuum and not in boost, kind of hard to see in the video at the end due to the poor focusing and lower quality of video from photobucket.
And for what it is worth, my CTS-V that has a "clutchless" pulley by design shows zero boost as well with only a bypass valve at high speeds if you are just cruising, even if I am going 85mph.
Might want to actually have facts before you start making statements that are not facts while trying to show them as such. To much dang misinformation gets thrown around.
http://s8.photobucket.com/user/Urbam...3047f.mp4.html
Last edited by urbamworm; 08-09-2013 at 05:39 PM.
#27
MBWorld Fanatic!
To me , from reading all of the above until now it just seems like this mod isn't going to be good for DD. Why ?
Well, first off- even now not everyone has an updated bosch pump
Some who have a Bosch pump don't necessarily have a bigger HE
And those who have both (I do , bosch and bigger H/E) I only have S/C pulley as a mod (I was advised against getting a crank pulley cuz of heat issues
and bad installation) , so if the first and second group of people start putting on this pulley which is equal to (180mm crank) it'll make the car heat soak
and will affect DD capabilities.
Who here has only like S/C pulley or just a bigger crank pulley and has done Meth, split, bigger H/E , trunk tank and what not ? I'd say none. Only
people who have done that are the ones with extensive mods.
For above -correct me if I'm wrong anywhere
I have a simple question though 180mm pulley vs 77mm pulley (equal to 180 crank) only mod on the car, which would make more hp ? and safe ?
Well, first off- even now not everyone has an updated bosch pump
Some who have a Bosch pump don't necessarily have a bigger HE
And those who have both (I do , bosch and bigger H/E) I only have S/C pulley as a mod (I was advised against getting a crank pulley cuz of heat issues
and bad installation) , so if the first and second group of people start putting on this pulley which is equal to (180mm crank) it'll make the car heat soak
and will affect DD capabilities.
Who here has only like S/C pulley or just a bigger crank pulley and has done Meth, split, bigger H/E , trunk tank and what not ? I'd say none. Only
people who have done that are the ones with extensive mods.
For above -correct me if I'm wrong anywhere
I have a simple question though 180mm pulley vs 77mm pulley (equal to 180 crank) only mod on the car, which would make more hp ? and safe ?
#28
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05 White Pano E55, Cadillac CTS-V
It is an easy concept, it don't matter how you make the boost, if a supercharger pulley or crank pulley are making the same boost they are going to make the same power.
#29
MBWorld Fanatic!
I wouldn't draw any conclusions until the tune is done. Would imagine that Jerry is going to actuate the bypass valve under vacuum to lower cruising & light load IATs and cavitation. Assuming the ECU has this capability.
#30
Super Member
Thread Starter
I agree. I'm not posting for or against the product, I just want to accumulate the data and get people to share their's.
I'm currently running the 77mm pulley. If after some testing and tweaking the 77 generates too much heat, I may consider the 80mm pulley as an alternative.
Either way, I need more data before I can conclude for or against it. It does feel very powerful after the reflash and I love the peppiness. Also comforting that I don't have to worry about a bad crank install that could cause expensive engine damage.
Hopefully someone with an 80 or 83mm pulley will chime in with some info. Curious to hear what they're experiencing.
I'm currently running the 77mm pulley. If after some testing and tweaking the 77 generates too much heat, I may consider the 80mm pulley as an alternative.
Either way, I need more data before I can conclude for or against it. It does feel very powerful after the reflash and I love the peppiness. Also comforting that I don't have to worry about a bad crank install that could cause expensive engine damage.
Hopefully someone with an 80 or 83mm pulley will chime in with some info. Curious to hear what they're experiencing.
Last edited by Tech-Tune; 08-09-2013 at 08:00 PM.
#31
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Join Date: Nov 2012
Location: Germany
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C215 CL55 AMG, W124 500E, W210 E430, W124 300E
To all, i really would like to see how the bypass-flap is working with the new tune for the fixed pulleys and IF and WHAT fail-save measures are implemented if IATs getting to high (pump failure while hard accelerating or highspeed highway driving, etc) by Eurocharged.
Ideal would be bypass-flap fully open (ie. no boost) and timing pulled when IATs to high.
However i have no idea what can be done in the ECU software we use, besides changing Hex-values for fuel and ignition timing.
#32
PLATINUM SPONSOR
Shardul and I drove Jerry`s @ EC stock E55 with our 80mm Fixed SC pulley on it. Car is all stock but his FSCP tune and EC heat exchanger. It was 100-101 degrees and IAT`s on a heat soaked car stayed in the 130 to 136 deg range. We were all suprised how radical the car felt with the pulley being fixed. Lot of fun to drive, very responsive and you could almost bounce the front tires off the ground by doing rolling throttle blips When it cools down here, going to a lot of fun. 80mm is = to a 175mm crank pulley but lot less weight. Tune feels real good and Jerry said he had burned a lot of overtime working on FSCP tune.
Also have a stock fixed pulley size, for the people that want to leave boost the same, but lighten rotational mass and get the quicker throttle response.
Also have a stock fixed pulley size, for the people that want to leave boost the same, but lighten rotational mass and get the quicker throttle response.
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Last edited by Exotic-metal55; 08-10-2013 at 10:24 AM.
#33
MBWorld Fanatic!
Thank you for starting the thread and please update if you can when you get the tune. It would be nice to get rid of the part-throttle engagement chop.
#34
Super Member
Thread Starter
The new tune I uploaded yesterday has a few issues that need to be fixed: It bucks on partial throttle and has massively delayed shifts.
I've been communicating with a forum member who has had more time with this pulley and was also experiencing these same issues. Yesterday he uploaded a revised file from Jerry and it seems to have resolved the problems.
Gonna see if Jerry can apply the changes to my file.
I'll keep you posted.
I've been communicating with a forum member who has had more time with this pulley and was also experiencing these same issues. Yesterday he uploaded a revised file from Jerry and it seems to have resolved the problems.
Gonna see if Jerry can apply the changes to my file.
I'll keep you posted.
#35
MBWorld Fanatic!
So the getting FSC pulley over the crank pulley is to avoid mishaps that happen with bad
installation right ? I mean it still generates same heat as stated above rather the car's ambient
temp stays higher than normal cuz it's engaged all the time right?
Just wondering what are the benefits of getting this over a 180mm pulley ?
installation right ? I mean it still generates same heat as stated above rather the car's ambient
temp stays higher than normal cuz it's engaged all the time right?
Just wondering what are the benefits of getting this over a 180mm pulley ?
#36
MBWorld Fanatic!
So the getting FSC pulley over the crank pulley is to avoid mishaps that happen with bad
installation right ? I mean it still generates same heat as stated above rather the car's ambient
temp stays higher than normal cuz it's engaged all the time right?
Just wondering what are the benefits of getting this over a 180mm pulley ?
installation right ? I mean it still generates same heat as stated above rather the car's ambient
temp stays higher than normal cuz it's engaged all the time right?
Just wondering what are the benefits of getting this over a 180mm pulley ?
(1) Positive : Maintain OEM balanced crank pulley
(2) Positive : Reduced rotating mass on supercharger should improve transient response, although I doubt it would be noticeable given the OEM system
(3) Positive : Eliminate some of the clutch issues folks have - with older or poorly shimmed setups
(4) Negative: Supercharger always spinning, so it will generate heat and wear even when not needed....
#37
i'm interested for the 77mm pulley....is it possible to daily drive the car witout the s/c belt ? and use it at the trac....i have a 5 min drive to the job...dont really need the s/c spinning
Last edited by sircl55amg; 08-11-2013 at 05:53 PM.
#38
MBWorld Fanatic!
Shifter I thought you were an MB tech or something? I would think you would know more about these cars. The supercharger isn't engaged under a certain throttle position angle and load. Have you even ever logged your car? I felt the need to show you in a video since I don't think you still believe what people are saying.
I went out and got on the highway running around 80mph and almost 90 as I was slowly accelerating and the car isn't making boost because the clutch is not engaged. That is the whole purpose of the clutch being their as part of the design, to aid against heat if there is a problem to shut the blower off and that along with the bypass valve to also make no boost and get better fuel mileage while cruising.
The video isn't the best since the camera phone kept needing to focus going back and forth but you can see it running like -6.5psi at the beginning aka vacuum and not in boost, kind of hard to see in the video at the end due to the poor focusing and lower quality of video from photobucket.
And for what it is worth, my CTS-V that has a "clutchless" pulley by design shows zero boost as well with only a bypass valve at high speeds if you are just cruising, even if I am going 85mph.
Might want to actually have facts before you start making statements that are not facts while trying to show them as such. To much dang misinformation gets thrown around.
http://s8.photobucket.com/user/Urbam...3047f.mp4.html
I went out and got on the highway running around 80mph and almost 90 as I was slowly accelerating and the car isn't making boost because the clutch is not engaged. That is the whole purpose of the clutch being their as part of the design, to aid against heat if there is a problem to shut the blower off and that along with the bypass valve to also make no boost and get better fuel mileage while cruising.
The video isn't the best since the camera phone kept needing to focus going back and forth but you can see it running like -6.5psi at the beginning aka vacuum and not in boost, kind of hard to see in the video at the end due to the poor focusing and lower quality of video from photobucket.
And for what it is worth, my CTS-V that has a "clutchless" pulley by design shows zero boost as well with only a bypass valve at high speeds if you are just cruising, even if I am going 85mph.
Might want to actually have facts before you start making statements that are not facts while trying to show them as such. To much dang misinformation gets thrown around.
http://s8.photobucket.com/user/Urbam...3047f.mp4.html
It's fair to say I have some technical knowledge.
I've used SDS to monitor values when driving. That's where I get my info from about " logging".
Anyhow you can't make out anything in that vid you posted.
Maybe I'll just get runoff and fed up with it like most others in the field.
#39
MBWorld Fanatic!
#40
#42
MBWorld Fanatic!
Theoretically speaking :
(1) Positive : Maintain OEM balanced crank pulley
(2) Positive : Reduced rotating mass on supercharger should improve transient response, although I doubt it would be noticeable given the OEM system
(3) Positive : Eliminate some of the clutch issues folks have - with older or poorly shimmed setups
(4) Negative: Supercharger always spinning, so it will generate heat and wear even when not needed....
(1) Positive : Maintain OEM balanced crank pulley
(2) Positive : Reduced rotating mass on supercharger should improve transient response, although I doubt it would be noticeable given the OEM system
(3) Positive : Eliminate some of the clutch issues folks have - with older or poorly shimmed setups
(4) Negative: Supercharger always spinning, so it will generate heat and wear even when not needed....
So number 1 and 3 can simply be avoided by getting properly installed both
items.
The question is how does having no clutch affect drivability and is the luxury
feel go away but having such a "jump ready throttle" even in comfort mode ?
#43
MBWorld Fanatic!
I agree! So it is important to change the supercharger oil
#44
MBWorld Fanatic!
To me , from reading all of the above until now it just seems like this mod isn't going to be good for DD. Why ?
Well, first off- even now not everyone has an updated bosch pump
Some who have a Bosch pump don't necessarily have a bigger HE
And those who have both (I do , bosch and bigger H/E) I only have S/C pulley as a mod (I was advised against getting a crank pulley cuz of heat issues
and bad installation) , so if the first and second group of people start putting on this pulley which is equal to (180mm crank) it'll make the car heat soak
and will affect DD capabilities.
Who here has only like S/C pulley or just a bigger crank pulley and has done Meth, split, bigger H/E , trunk tank and what not ? I'd say none. Only
people who have done that are the ones with extensive mods.
For above -correct me if I'm wrong anywhere
I have a simple question though 180mm pulley vs 77mm pulley (equal to 180 crank) only mod on the car, which would make more hp ? and safe ?
Well, first off- even now not everyone has an updated bosch pump
Some who have a Bosch pump don't necessarily have a bigger HE
And those who have both (I do , bosch and bigger H/E) I only have S/C pulley as a mod (I was advised against getting a crank pulley cuz of heat issues
and bad installation) , so if the first and second group of people start putting on this pulley which is equal to (180mm crank) it'll make the car heat soak
and will affect DD capabilities.
Who here has only like S/C pulley or just a bigger crank pulley and has done Meth, split, bigger H/E , trunk tank and what not ? I'd say none. Only
people who have done that are the ones with extensive mods.
For above -correct me if I'm wrong anywhere
I have a simple question though 180mm pulley vs 77mm pulley (equal to 180 crank) only mod on the car, which would make more hp ? and safe ?
#45
MBWorld Fanatic!
I agree. I'm not posting for or against the product, I just want to accumulate the data and get people to share their's.
I'm currently running the 77mm pulley. If after some testing and tweaking the 77 generates too much heat, I may consider the 80mm pulley as an alternative.
Either way, I need more data before I can conclude for or against it. It does feel very powerful after the reflash and I love the peppiness. Also comforting that I don't have to worry about a bad crank install that could cause expensive engine damage.
been there and cost me 2,700 in repair. The crank pulley sheered the key way.
Hopefully someone with an 80 or 83mm pulley will chime in with some info. Curious to hear what they're experiencing.
I'm currently running the 77mm pulley. If after some testing and tweaking the 77 generates too much heat, I may consider the 80mm pulley as an alternative.
Either way, I need more data before I can conclude for or against it. It does feel very powerful after the reflash and I love the peppiness. Also comforting that I don't have to worry about a bad crank install that could cause expensive engine damage.
been there and cost me 2,700 in repair. The crank pulley sheered the key way.
Hopefully someone with an 80 or 83mm pulley will chime in with some info. Curious to hear what they're experiencing.
#46
MBWorld Fanatic!
Today I kept the gas peddle conersverative at about 2800 RPM for my daily commute (60 Miles)and I was able to get 18MPG on the 77mm pulley
#49
MBWorld Fanatic!
usually when you purchase a tune from E/C and then do more mods down the road E/C will send you a new tune with added mods from free. but with the clutch less pulley you will have to pay for a new tune
#50
MBWorld Fanatic!
Shardul didn't needed to mention anything cuz they both different companies, or maybe he didn't know how EC would work on pricing.
Anyhow, I do understand that how it must suck for you though, not being able to go WOT cuz it ain't tuned yet lol
This however will be a great first mod based on it's value.
Do you not think that it takes away the luxury feel from the car by making it "throttle ready" all the time? For example in comfort mode
the car used to need more throttle to make a jump and then clutch engages and then the car would go and now it just jumps right
away ? Base question is how do you feel driving the car ? You think the car should've already came like this or do you miss the
clutch engagement ? lol sounds cheesy but these are the things that affect daily drivability.