Any power pully users?
#26
Of course they make gains, that's why they've been used since the muscle car era. Why people are still debating it some 50 years later is still unknown. UUC does bring up an interesting point, the gains are more pronounce in lower gears due to the multiplication factor of the lower gears. This in turn makes significant improvements in 0-60 times as well.
At the end of the day... what happens on an engine dyno is irrelevant since nobody takes their engine out of their car and dynos it on an engine dyno. However, on a chassis dyno yes you will see gains of course from driveline mass reduction. At the end of the day the only kind of power that really matters is wheel power... engine power is all theoretical since its impossible to measure once an engine has been installed into the car from the factory.
One thing to add ... the stock C63 pulley is not less than 5lbs... its almost 7lbs. So that thread is incorrect in that regard. Also, the stock C63 pulley is basically underdriven from the factory... its the smallest diameter pulley I have ever seen from MB/AMG by far.
At the end of the day... what happens on an engine dyno is irrelevant since nobody takes their engine out of their car and dynos it on an engine dyno. However, on a chassis dyno yes you will see gains of course from driveline mass reduction. At the end of the day the only kind of power that really matters is wheel power... engine power is all theoretical since its impossible to measure once an engine has been installed into the car from the factory.
One thing to add ... the stock C63 pulley is not less than 5lbs... its almost 7lbs. So that thread is incorrect in that regard. Also, the stock C63 pulley is basically underdriven from the factory... its the smallest diameter pulley I have ever seen from MB/AMG by far.
#27
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2011 GLK 350, 2013 GT-R, & 2013 RAM 1500
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See the actual photos provided in the before/after post here -> https://mbworld.org/forums/c63-amg-w...-2010-c63.html
Stock pulley is just over 5-lbs, almost 6-lbs. Granted my bathroom scale is not the most accurate scale in the world, but it's close enough for comparison's sake.
Last edited by superlubricity; 05-04-2010 at 10:31 PM.
#28
I'll measure it again one more time down to 3 decimal points. I'm pretty sure It was roughly 6.350 (trying to remember from memory, I'll double check again). Either way, the mass reduction is between 2-3 lbs.
#30
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None fast enough!
Four personal friends of mine have installed the Evosport pulley on their cars, and 3 of them have had some type of electrical "hickups" (or issues) soon after the install. When they switched back to stock, the "hickups" stopped. The fourth one have been running without problems so far. Over the past year, I've talked to many more people who got this mod installed and found that opinions are divided on this topic: some say they've had no issues while others have had some (minor though).
The inconclusive nature of this mod has annoyed me for some time now, as I was really considering putting it in my car![action](https://mbworld.org/forums/images/smilies/action1.gif)
The inconclusive nature of this mod has annoyed me for some time now, as I was really considering putting it in my car
![action](https://mbworld.org/forums/images/smilies/action1.gif)
Please try to stick to facts. If YOU have personal experience with something, then you are qualified to make critical comments. However, posting as you did comes off to the casual reader like you do have facts when you simply don't. Forums and the internet is a fantastic tool for sharing information, as long as that information is factual and accurate. Assumption, hearsay, innuendo all work against that purpose and create more misinformation and cynicism.
If you DO have three friends that have had electrical problems after putting on an evosport pulley, then why have they not contacted us?
One was Rick in San Diego I assume. Well he has certainly come out with enough positives on the forum since he changed his alternator (as we recommended). As we diagnosed at the time, his problems were not related to the pulley but was the car itself. Yes, under driving the system most likely made the problem more recognizable, but the FACT is that it was the alternator, not the pulley modification.
If you have others that have real problems, then they should contact us so the issues can be correctly diagnosed and remedied. That would be far better then having assumption and false allegations float around on the internet, don't you think?
As to your statement about it being "inconclusive" that is simply not true either. As AMS posted, this mod has been around for only about 50 years and has worked on every car it has been applied too. Some motors/cars make more gains then others, but the theory and REAL results are far from inconclusive. Owner after owner can post dyno's of gains and you still find it inconclusive? And this is not just about our pulley - any under drive pulley will make power. Some may have other issues as far as reliability of the pulley or the quality, but not if they will make power.
I believe you have some "grudge" against us (it has been reported to me from many users here and I have had PM's forwarded to me stating as much), so if that is true, let's just call a spade a spade. Maybe you should just call us and talk about whatever issue you have. As far as I can tell, you have never been a customer of our products, so I find it hard to understand why you feel the way you do (or at least the way you tell people in private you do). I PM'ed about a year ago asking you about this as well, and it was never replied to.
Thanks
Brad
Last edited by brad @ evosport; 05-05-2010 at 10:31 AM.
#31
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C63AMG
Good Thing
Four personal friends of mine have installed the Evosport pulley on their cars, and 3 of them have had some type of electrical "hickups" (or issues) soon after the install. When they switched back to stock, the "hickups" stopped. The fourth one have been running without problems so far. Over the past year, I've talked to many more people who got this mod installed and found that opinions are divided on this topic: some say they've had no issues while others have had some (minor though).
The inconclusive nature of this mod has annoyed me for some time now, as I was really considering putting it in my car![action](https://mbworld.org/forums/images/smilies/action1.gif)
The inconclusive nature of this mod has annoyed me for some time now, as I was really considering putting it in my car
![action](https://mbworld.org/forums/images/smilies/action1.gif)
NO ELECTRICAL PROBS ever on ours, knock on wood, I mean head. We are 7500 miles now, including track time. Haven't done 200 yet, but have explored other parameters. Evosport hasn't done any after service since our pulley install. Has been trouble free. Must be our European air boxes........
#32
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E63 P30, CL500 Sport
Mo, lately you always seem to be jumping in with "anecdotal" stories but no facts that attempt to paint things we do in a negative light.
Please try to stick to facts. If YOU have personal experience with something, then you are qualified to make critical comments. However, posting as you did comes off to the casual reader like you do have facts when you simply don't.
Please try to stick to facts. If YOU have personal experience with something, then you are qualified to make critical comments. However, posting as you did comes off to the casual reader like you do have facts when you simply don't.
Forums and the internet is a fantastic tool for sharing information, as long as that information is factual and accurate. Assumption, hearsay, innuendo all work against that purpose and create more misinformation and cynicism.
If you DO have three friends that have had electrical problems after putting on an evosport pulley, then why have they not contacted us?
If you DO have three friends that have had electrical problems after putting on an evosport pulley, then why have they not contacted us?
It's funny that you think that because I was thinking the same thing: I was thinking that you had a "grudge" against me for whatever reason, since you seem to jump on my posts lately.
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I never got the PM, which is likely why I didn't reply. If I receive a PM or e-mail, I will reply. If I don't reply, it's either because I did not receive it or couldn't access my e-mail temporarily for some reason.
Last edited by MB_Forever; 05-05-2010 at 03:57 PM.
#34
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CLS63
Mo, lately you always seem to be jumping in with "anecdotal" stories but no facts that attempt to paint things we do in a negative light.
Please try to stick to facts. If YOU have personal experience with something, then you are qualified to make critical comments. However, posting as you did comes off to the casual reader like you do have facts when you simply don't. Forums and the internet is a fantastic tool for sharing information, as long as that information is factual and accurate. Assumption, hearsay, innuendo all work against that purpose and create more misinformation and cynicism.
If you DO have three friends that have had electrical problems after putting on an evosport pulley, then why have they not contacted us?
One was Rick in San Diego I assume. Well he has certainly come out with enough positives on the forum since he changed his alternator (as we recommended). As we diagnosed at the time, his problems were not related to the pulley but was the car itself. Yes, under driving the system most likely made the problem more recognizable, but the FACT is that it was the alternator, not the pulley modification.
If you have others that have real problems, then they should contact us so the issues can be correctly diagnosed and remedied. That would be far better then having assumption and false allegations float around on the internet, don't you think?
As to your statement about it being "inconclusive" that is simply not true either. As AMS posted, this mod has been around for only about 50 years and has worked on every car it has been applied too. Some motors/cars make more gains then others, but the theory and REAL results are far from inconclusive. Owner after owner can post dyno's of gains and you still find it inconclusive? And this is not just about our pulley - any under drive pulley will make power. Some may have other issues as far as reliability of the pulley or the quality, but not if they will make power.
I believe you have some "grudge" against us (it has been reported to me from many users here and I have had PM's forwarded to me stating as much), so if that is true, let's just call a spade a spade. Maybe you should just call us and talk about whatever issue you have. As far as I can tell, you have never been a customer of our products, so I find it hard to understand why you feel the way you do (or at least the way you tell people in private you do). I PM'ed about a year ago asking you about this as well, and it was never replied to.
Thanks
Brad
Please try to stick to facts. If YOU have personal experience with something, then you are qualified to make critical comments. However, posting as you did comes off to the casual reader like you do have facts when you simply don't. Forums and the internet is a fantastic tool for sharing information, as long as that information is factual and accurate. Assumption, hearsay, innuendo all work against that purpose and create more misinformation and cynicism.
If you DO have three friends that have had electrical problems after putting on an evosport pulley, then why have they not contacted us?
One was Rick in San Diego I assume. Well he has certainly come out with enough positives on the forum since he changed his alternator (as we recommended). As we diagnosed at the time, his problems were not related to the pulley but was the car itself. Yes, under driving the system most likely made the problem more recognizable, but the FACT is that it was the alternator, not the pulley modification.
If you have others that have real problems, then they should contact us so the issues can be correctly diagnosed and remedied. That would be far better then having assumption and false allegations float around on the internet, don't you think?
As to your statement about it being "inconclusive" that is simply not true either. As AMS posted, this mod has been around for only about 50 years and has worked on every car it has been applied too. Some motors/cars make more gains then others, but the theory and REAL results are far from inconclusive. Owner after owner can post dyno's of gains and you still find it inconclusive? And this is not just about our pulley - any under drive pulley will make power. Some may have other issues as far as reliability of the pulley or the quality, but not if they will make power.
I believe you have some "grudge" against us (it has been reported to me from many users here and I have had PM's forwarded to me stating as much), so if that is true, let's just call a spade a spade. Maybe you should just call us and talk about whatever issue you have. As far as I can tell, you have never been a customer of our products, so I find it hard to understand why you feel the way you do (or at least the way you tell people in private you do). I PM'ed about a year ago asking you about this as well, and it was never replied to.
Thanks
Brad
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#36
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2008 C63 AMG
Pulley install yielded 8 wkw on my car. Will scan my dyno results and post.
I have done 52000kms with zero problems.
Car definitely revs up faster with pulley.
I have driven other cars without pulley and same software and there is a difference. My exit speeds are also about 5km/h faster.
I have done 52000kms with zero problems.
Car definitely revs up faster with pulley.
I have driven other cars without pulley and same software and there is a difference. My exit speeds are also about 5km/h faster.
#37
Pulley install yielded 8 wkw on my car. Will scan my dyno results and post.
I have done 52000kms with zero problems.
Car definitely revs up faster with pulley.
I have driven other cars without pulley and same software and there is a difference. My exit speeds are also about 5km/h faster.
I have done 52000kms with zero problems.
Car definitely revs up faster with pulley.
I have driven other cars without pulley and same software and there is a difference. My exit speeds are also about 5km/h faster.
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#38
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2011 GLK 350, 2013 GT-R, & 2013 RAM 1500
Zero issues after 1,200 miles. No change in voltage and everything is running like day one.
#39
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CLS63
Independent non-vendor dyno graphs here -> https://mbworld.org/forums/c63-amg-w...-2010-c63.html
Zero issues after 1,200 miles. No change in voltage and everything is running like day one.
Zero issues after 1,200 miles. No change in voltage and everything is running like day one.
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#42
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Last edited by C63newdude; 01-24-2012 at 09:58 PM.