C450/C43 AMG
Sponsored by:
Sponsored by:

Let’s Talk WMI

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 23, 2020 | 02:45 PM
  #1  
C43HeartBoost's Avatar
Thread Starter
Super Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2019
Posts: 841
Likes: 315
C43
Let’s Talk WMI

I will be placing my order for an upgraded intercooler in the next few weeks and was thinking to go with a WMI kit while I am at it. That said, I am considering WMI solely to lower IATs and am thinking of running primarily water, with very little meth. Additionally, if I go WMI I have no intention of re-tuning my car (currently stage 2).

Is anyone else running WMI on their c43/c450 without being tuned to run WMI? If so, what power gains have you seen (either dyno results or trap speeds)? If data logging, what reduction have you seen in IATs? I really do not want to run WMI if it causes me to lose power without a WMI-specific tune.

Thanks everyone, happy holidays!
Reply
Old Dec 23, 2020 | 04:01 PM
  #2  
BMS's Avatar
BMS
Former Vendor of MBWorld
 
Joined: Dec 2005
Posts: 827
Likes: 152
From: Simi Valley, California
2018 C63 Sedan
I'd just do WMI and skip the intercooler personally. We've got a variety of solid WMI setups and progressive control via the JB4.
Reply
Old Dec 23, 2020 | 11:20 PM
  #3  
Howyalivin's Avatar
Member
 
Joined: Mar 2020
Posts: 199
Likes: 75
Acura TL-SH, among others
Originally Posted by C43HeartBoost
I will be placing my order for an upgraded intercooler in the next few weeks and was thinking to go with a WMI kit while I am at it. That said, I am considering WMI solely to lower IATs and am thinking of running primarily water, with very little meth. Additionally, if I go WMI I have no intention of re-tuning my car (currently stage 2).

Is anyone else running WMI on their c43/c450 without being tuned to run WMI? If so, what power gains have you seen (either dyno results or trap speeds)? If data logging, what reduction have you seen in IATs? I really do not want to run WMI if it causes me to lose power without a WMI-specific tune.

Thanks everyone, happy holidays!
No one that I've seen has produced higher HP numbers w/ a new intercooler. If so, it's marginal. It's not that there might not be more HP, but it's a rare change and it seems that it doesn't make much HP. The thing I have seen is consistency. On back to back runs, this platform heats up quickly, so being able to run the same times, especially in high heat, doesn't happen. With a new IC, consistency is the biggest gain.

WMI is another thing entirely.
Reply
Old Dec 23, 2020 | 11:54 PM
  #4  
C43HeartBoost's Avatar
Thread Starter
Super Member
5 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2019
Posts: 841
Likes: 315
C43
Originally Posted by Howyalivin
No one that I've seen has produced higher HP numbers w/ a new intercooler. If so, it's marginal. It's not that there might not be more HP, but it's a rare change and it seems that it doesn't make much HP. The thing I have seen is consistency. On back to back runs, this platform heats up quickly, so being able to run the same times, especially in high heat, doesn't happen. With a new IC, consistency is the biggest gain.

WMI is another thing entirely.
Completely agreed, which is the only reason I am going with the upgraded intercooler and am considering WMI. On even moderately warm days the heat soak on this platform is absurd.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 03:42 PM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE