huh ? 
New: FSP Pulley Review with EC Tune 2.0 (Jerry/Brooke/Shardul)
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2014 cls63 a amg. 2018 AMG GTR
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From: Orlando, FL
2017 SQ5 / 2012 Ferrari FF
I'll have one soon for a 77mm supercharger pulley with a stage 3 (injectors, looped rail, 82mm TB, headers (de-cat), and heavy cooling mods), but no ported heads/cams. Jerry and John are working on it today in Houston, and I'll be glad to share when it's done.
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Couldnt any decent tuner modify your tune for this ? I cant imagine too many people with custom dyno tunes are going to want a canned tune or start from scratch just so they can get this mod. I personally would be ordering it right now if I knew I could easily get my tune modified to make it work.
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Couldnt any decent tuner modify your tune for this ? I cant imagine too many people with custom dyno tunes are going to want a canned tune or start from scratch just so they can get this mod. I personally would be ordering it right now if I knew I could easily get my tune modified to make it work.
Call your tuner... I am sure they can speak to it.
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The 77 / 180 combo will put you in the 18.x PSI range. I cannot get anythingover 17.5 to work. I know I could defeat the MAP via a map-clamp or somethingcomparable, but I don't have the stomach for it.
I will be watching your progress.
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HAHA should have clarified..it is a 77mm supercharger pulley and replacing the 180mm crank pulley. Good catch, should have pointed that out.
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Damn even the 83 is a big difference then. On my GTO dropping every tenth of an inch increase boost a good amount. Wish they had more choices on sizes. Also be nice if they listed the amount of boost increase for each size.
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This is relative to your mods of course.
https://mbworld.org/forums/w211-amg/516924-pulley-size-boost-calculator.html
https://mbworld.org/forums/w211-amg/516924-pulley-size-boost-calculator.html
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from Houston.
Looks like it would put you just over 17 psi.. TRY IT!!! Its on the edge, but under the 17.5 threashold!
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Wow, so going to a 83 adds two pounds of boost ? 
According to that chart it makes a good bit more boost than a 195mm .......... They need to get some more in between sizes on those upper pulleys.
According to that chart it makes a good bit more boost than a 195mm .......... They need to get some more in between sizes on those upper pulleys.
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sigh, I liked having money in my pocket... I think I'm sold on the the plan... 80mm FSP, PLM heat exchanger, secondary cat and res delete with x pipe. And then possibly split cooling and some type of way to monitor IATs. I think this will give me a good balance of beauty and beast
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I am not talking to the accuracy of that chart posted, but I gained about a pound of boost over stock. My lower is stock.
I logged using TORQUE and my boost went from ~10.4-10.5 peak to about ~11.5 peak.
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sigh, I liked having money in my pocket... I think I'm sold on the the plan... 80mm FSP, PLM heat exchanger, secondary cat and res delete with x pipe. And then possibly split cooling and some type of way to monitor IATs. I think this will give me a good balance of beauty and beast
Monitoring your IATs is super cheap and easy. If you have a Droid it will set you back about $20 total. I use a blue tooth OBD2 and Torque ($5). Works very well.
hmm..... I was wondering about this. Those numbers did seem very high to me. So you went with the 84mm and gained 1 lb ? On my GTO every tenth adds close to a lb. The 84 would be just about a 1/4 inch. Of course the starting size of the W211 pulley is larger at 3.5 inches VS the 3 inches on my other blower. I would have expected a good 1.5 LB PSI dropping that much. You really need to test with the same conditions too. Cooler temps raise boost.
Last edited by dllhg; Oct 23, 2013 at 11:57 AM.
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Just to add to this thread...I have seen and met a few guys running this pulley and their cars are running strong. I can't believe what a SC pulley is doing to the AMG's compared to what it did 6 months ago which was barely any gains (20-30whp). Now it is very impressive as I have seen them run! The negative is...every guy that I know with the pulley and the EC tune is having shifting issues. They are not major issues but seems to be a small glitch somewhere. Can't these guys solve the problem and is anyone else on here having the same problem? I only want to see their cars at full potential.
I don't know exactly what the shifting issues are but I am sure that someone will explain and maybe it is posted earlier in this thread but I didn't have the time to read through this entire thread.
I have heard many good things about EC so please do not take this wrong. I am just curious what the issue is and to try and help my friends get it straightened out.
I don't know exactly what the shifting issues are but I am sure that someone will explain and maybe it is posted earlier in this thread but I didn't have the time to read through this entire thread.
I have heard many good things about EC so please do not take this wrong. I am just curious what the issue is and to try and help my friends get it straightened out.
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2006 E55
And to be honest, I would not feel comfortable without a clutched pulley, but that's just me. I like the comfort of engaging and disengaging as I please with my right foot. My .02 on the whole FSP product.
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From: Socal, Chino
E55 2006 / CLS55 / S450 / Jag XKR2011
Just want to understand this better, is this correct ?
90mm ==> Stock
84mm ==> smaller pulley with clutch
80mm ==> Fixed pulley without clutch
77mm ==> who makes ?
90mm ==> Stock
84mm ==> smaller pulley with clutch
80mm ==> Fixed pulley without clutch
77mm ==> who makes ?
