Just Ordered AMS Pulley from LET.
hooleyboy, you might want to consider udp's at the same time - combined with the AMS pulley, you should notice an even better bump in rwhp and rwtq.
I think LET makes underdrive pullies for N/A cars - you should check with Erick, if interested. If they don't, I'm pretty sure evosport makes them for your car - so that would be an option.
Thanks for sharing all of your mod info so far - sounds like it's turning into quite a beast
hooleyboy, you might want to consider udp's at the same time - combined with the AMS pulley, you should notice an even better bump in rwhp and rwtq.
I think LET makes underdrive pullies for N/A cars - you should check with Erick, if interested. If they don't, I'm pretty sure evosport makes them for your car - so that would be an option.
Thanks for sharing all of your mod info so far - sounds like it's turning into quite a beast

Im going to stay far away from a underdrive Pulley. It gets hot here in AZ so i dont need that running the A/C weak. I'm not that hard up for HP that I want to run the risk of major crank damage, electricals not working right. there are just to many bad things that can happen that out weight the good.
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just curious, how come you went w/ evo headers and not renntech.
and oh yeah pics pls
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Why did you order an AMS PULLEY FROM LET, instead of just getting it straight form AMS. Btw, AMS isnt very legit, their rep is really low, they copy products from other manufacturers.
Second question. Why mod an NA? Its so expensive and the gains are so small.
Why did you order an AMS PULLEY FROM LET, instead of just getting it straight form AMS. Btw, AMS isnt very legit, their rep is really low, they copy products from other manufacturers.
Second question. Why mod an NA? Its so expensive and the gains are so small.
Not sure what the total cost has been, but IMHO that's a pretty decent jump in output.

Also, as far as modding N/A engines - if you think this forum is bad, DEFINITELY steer clear of any E63, C63, and CLK63BS threads!!
I wasted a ton of money trying to fix the HPS kit but Kleemann is awesome. I went from 387rwhp to 440rwhp just by swapping the blower!
If you can pick up some used Kleemann or Renntech headers, cams then you can probably get an additional 175bhp for about $15K! Still less than a brand new C63 and more power plus you don't take a bath on selling your C55.
Just wanted to say thanks. As a fellow C55'er, it's really enjoyable to follow you slowly modding your car and great to see the results you're getting. I've still got a bunch of warranty left, but as soon as it's up I'll most likely go down the same path you are.
Good luck and happy modding.
Just wanted to say thanks. As a fellow C55'er, it's really enjoyable to follow you slowly modding your car and great to see the results you're getting. I've still got a bunch of warranty left, but as soon as it's up I'll most likely go down the same path you are.
Good luck and happy modding.
I had over 75+ dynos with a SC on it, taken the car to Willow Springs and the car still runs great. If you can find a good tuner who can repair any damage at a reasonable cost (i.e. blown motor) then go for it and don't worry about the warranty.
Just wanted to say thanks. As a fellow C55'er, it's really enjoyable to follow you slowly modding your car and great to see the results you're getting. I've still got a bunch of warranty left, but as soon as it's up I'll most likely go down the same path you are.
Good luck and happy modding.
I had over 75+ dynos with a SC on it, taken the car to Willow Springs and the car still runs great. If you can find a good tuner who can repair any damage at a reasonable cost (i.e. blown motor) then go for it and don't worry about the warranty.
Also On the C63 note I strolled into Dyno-comp today to get my stock airbox back and pulling off the dyno was a C63 and it only put down 330whp!!! no joke. I wanted to take a pic of the dyno sheet but I didn't want the guy to feel bad that he only made 330whp! they flashed the ECU and the C63 picked up 40 more HP and 40tq with the software. I thought this was very low for a car that claims 451bhp. I guess you will just have to take my word for it as i didn't get a pic of the dyno run and didn't want to ask the guy if i could. needless to say I was shocked. Here is a pic of me in front of Dyno-com (not Buddy's alignment shop) with the C63
Also On the C63 note I strolled into Dyno-comp today to get my stock airbox back and pulling off the dyno was a C63 and it only put down 330whp!!! no joke. I wanted to take a pic of the dyno sheet but I didn't want the guy to feel bad that he only made 330whp! they flashed the ECU and the C63 picked up 40 more HP and 40tq with the software. I thought this was very low for a car that claims 451bhp. I guess you will just have to take my word for it as i didn't get a pic of the dyno run and didn't want to ask the guy if i could. needless to say I was shocked. Here is a pic of me in front of Dyno-com (not Buddy's alignment shop) with the C63

I wasted a ton of money trying to fix the HPS kit but Kleemann is awesome. I went from 387rwhp to 440rwhp just by swapping the blower!
If you can pick up some used Kleemann or Renntech headers, cams then you can probably get an additional 175bhp for about $15K! Still less than a brand new C63 and more power plus you don't take a bath on selling your C55.
I just think 17k on mods its pushing it, but your older and if you got the money its up to you.
I wasted a ton of money trying to fix the HPS kit but Kleemann is awesome. I went from 387rwhp to 440rwhp just by swapping the blower!
If you can pick up some used Kleemann or Renntech headers, cams then you can probably get an additional 175bhp for about $15K! Still less than a brand new C63 and more power plus you don't take a bath on selling your C55.
Where?? I've been looking for a used Kleemann for months and cant find one for the ML-55;; Any links or thoughts???
Glenn
Also On the C63 note I strolled into Dyno-comp today to get my stock airbox back and pulling off the dyno was a C63 and it only put down 330whp!!! no joke. I wanted to take a pic of the dyno sheet but I didn't want the guy to feel bad that he only made 330whp! they flashed the ECU and the C63 picked up 40 more HP and 40tq with the software. I thought this was very low for a car that claims 451bhp.
I think VRP is working on the problem areas for the C63 (intake and exhaust flow issues) - theoretically, a C63 *should* be able to put down the same kind of power as the E63, if the restrictions are worked out... since the engine's identical. So, it won't be long before we're seeing lightly modded C63's putting down 440ish rwhp... that's my guess









maybe a bad choice of words, but you're right, he's getting less slow day by day. I meant as opposed to going to Kleemann like Dragon did and just getting the whole shot done in one trip.