175mm Pulley and cooling questions for the experienced veterans...
Thread Starter
Super Member
Joined: Nov 2006
Posts: 952
Likes: 9
From: NJ/Greece
2006 CLS55 & 2002 SL55 (R129) Silver Arrow
175mm Pulley and cooling questions for the experienced veterans...
Was hoping to get some good advise from those who have first hand experience.
I have (what seems to be) an ASP 175mm crank pulley that I am considering installing in conjunction to my UPD supercharger pulley.
Mods to the cooling system:
-split the cooling with the new version Bosch pump (on constant circulation)
-installed coolant tank outside of engine bay (behind front grill) and larger heat exchanger
My questions are:
-Is this a safe pulley to install?
-What would be the crank size equivalence of this pulley combo?
-Is my current cooling adequate for this combination?
I have (what seems to be) an ASP 175mm crank pulley that I am considering installing in conjunction to my UPD supercharger pulley.
Mods to the cooling system:
-split the cooling with the new version Bosch pump (on constant circulation)
-installed coolant tank outside of engine bay (behind front grill) and larger heat exchanger
My questions are:
-Is this a safe pulley to install?
-What would be the crank size equivalence of this pulley combo?
-Is my current cooling adequate for this combination?
Last edited by Tech-Tune; Apr 21, 2013 at 09:13 AM.
Super Member
Joined: Dec 2007
Posts: 504
Likes: 8
From: DE
2003 E55 AMG
I have 175MM Brabus pulley and Shardul's smaller upper supercharger pulley. That combination bumps your effective size to around 185MM. Honestly I think you will need a bigger tank. What you have now will be sufficient enough when it is not so hot outside. You will see and average of 25-35F temp. difference during normal driving.
Thread Starter
Super Member
Joined: Nov 2006
Posts: 952
Likes: 9
From: NJ/Greece
2006 CLS55 & 2002 SL55 (R129) Silver Arrow
Thanks for the input gentlemen.
I prefer to leave the cooling alone for now. Would a 168mm pulley suffice with the current cooling system?
I prefer to leave the cooling alone for now. Would a 168mm pulley suffice with the current cooling system?
MBWorld Fanatic!
Joined: Aug 2010
Posts: 2,156
Likes: 7
From: Northern Va
Dirt Scooters
I got pretty warm when I had the 175mm but after the meziere pump and trunk tank it wasn't too bad. I think you would be right around the 185mm range. Best way to see how it works is to try it 
MBWorld Fanatic!
Joined: Jan 2009
Posts: 7,659
Likes: 67
From: Atlanta
2006 E55 AMG
We just did a car tha t was bonestock with 168mm and kleeman headers only. Stock cooling and we saw 130* on the dyno as peak iats when tuning. Anything over 120* and it pulls timing brotha. Correctly setup meth kit will have you at ambient on wot runs.
Thread Starter
Super Member
Joined: Nov 2006
Posts: 952
Likes: 9
From: NJ/Greece
2006 CLS55 & 2002 SL55 (R129) Silver Arrow
AMBIENT @ WOT????.... That's amazing! I'll have to consider installing a meth kit in the future.
Last edited by Tech-Tune; Apr 21, 2013 at 10:40 AM.
Trending Topics
MBWorld Fanatic!
Joined: Oct 2012
Posts: 1,242
Likes: 7
From: Canada
2004 E55 AMG
Not trying to hijack the thread but similar position here
Cooling won't be enough with all he has ?
I was in route to order 180 crank and supercharger pulley and was planning to put both and I just have a tune only. So I should just also refrain away from that and just get the 180mm alone ?
Cuz I do not even have a CM90 pump it's just the stock one. I don't do 1/4 like all of you , just some hwy pulls and speeding up here and there and maybe few laps in summer ?
Cooling won't be enough with all he has ?
I was in route to order 180 crank and supercharger pulley and was planning to put both and I just have a tune only. So I should just also refrain away from that and just get the 180mm alone ?
Cuz I do not even have a CM90 pump it's just the stock one. I don't do 1/4 like all of you , just some hwy pulls and speeding up here and there and maybe few laps in summer ?
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: May 2011
Posts: 1,109
Likes: 20
From: Las Vegas, NV
1000Hp Diesel Trucks, 2019 E63s
Not trying to hijack the thread but similar position here
Cooling won't be enough with all he has ?
I was in route to order 180 crank and supercharger pulley and was planning to put both and I just have a tune only. So I should just also refrain away from that and just get the 180mm alone ?
Cuz I do not even have a CM90 pump it's just the stock one. I don't do 1/4 like all of you , just some hwy pulls and speeding up here and there and maybe few laps in summer ?
Cooling won't be enough with all he has ?
I was in route to order 180 crank and supercharger pulley and was planning to put both and I just have a tune only. So I should just also refrain away from that and just get the 180mm alone ?
Cuz I do not even have a CM90 pump it's just the stock one. I don't do 1/4 like all of you , just some hwy pulls and speeding up here and there and maybe few laps in summer ?
Senior Member
Joined: Mar 2009
Posts: 443
Likes: 8
From: UK
Stage 3 63
Not trying to hijack the thread but similar position here
Cooling won't be enough with all he has ?
I was in route to order 180 crank and supercharger pulley and was planning to put both and I just have a tune only. So I should just also refrain away from that and just get the 180mm alone ?
Cuz I do not even have a CM90 pump it's just the stock one. I don't do 1/4 like all of you , just some hwy pulls and speeding up here and there and maybe few laps in summer ?
Cooling won't be enough with all he has ?
I was in route to order 180 crank and supercharger pulley and was planning to put both and I just have a tune only. So I should just also refrain away from that and just get the 180mm alone ?
Cuz I do not even have a CM90 pump it's just the stock one. I don't do 1/4 like all of you , just some hwy pulls and speeding up here and there and maybe few laps in summer ?
Its best if you have a Tank in the boot that will sort out you cooling issues.
I was running a 200mm pulley with a tank never had any problems
Thread Starter
Super Member
Joined: Nov 2006
Posts: 952
Likes: 9
From: NJ/Greece
2006 CLS55 & 2002 SL55 (R129) Silver Arrow
The UPD supercharger pulley is 6mm smaller than stock... If it were 10-12mm smaller I wouldn't even consider installing this crank pulley.
MBWorld Fanatic!
Joined: Jan 2009
Posts: 7,659
Likes: 67
From: Atlanta
2006 E55 AMG
Yes, ambient temps Alex, you read that right. Onething you will notice when you add a crank pulley is that your TQ will climb substantially. A supercharger pulley is nice, but even on the terminator (03/04) and lightning platforms, cranks pulleys make a ton more tq than just doing the blower pulley.
