BEFORE (Stock HE) and AFTER (LET HE) IAT on the dyno

Subscribe
Dec 11, 2007 | 04:45 PM
  #1  
Some of ya'll may know I received my HE last Wed & brought
it to the Towers meet on Friday to show. Well I couldn't dyno
my car yesterday but today I got to it. The only difference
between the two datalogs is that one had the stock heat
exchanger and todays run has LET's (Erick) Heat Exchanger.
Both runs were made with the Johnson CM30 pump (which he
sells) and the install could've been done in under a hour if the
car was cooled overnight and worked on the first thing in the
morning.

One thing I suggest you to get is to get a gallon of coolant,
(4) hose clamps, (3) self-tapping screws, and patience in
removing the front bumper.

BEFORE: 19NOV07 Monday morning it was cool but still hot
as hell, gotta love South Florida weather.





AFTER: 11DEC07 Tuesday afternoong, hot as hell. I really
hate South Florida weather.





If you have any questions feel free to ask!

Yes Erick! Sending out the ECU tomorrow! This is why I was
holding back!
Reply 0
Dec 11, 2007 | 05:29 PM
  #2  
you would think the bigger HE would only make a diff under sustained hard running- the kind that uniformly heats up the coolant.

do you know the temps of the coolant resevior before your did the runs?

my car is stronger since codessmiths HE but i installed the c030 pump and attributed the performance to better cooling by more liquid flowing over the intercooler.....not that the coolant itself was at a lower temp.
Reply 0
Dec 11, 2007 | 05:39 PM
  #3  
I must have just missed you at the towers GTG. I left at 9ish. Apparently Donn made it out too. Too bad I missed it. Next time
Reply 0
Dec 11, 2007 | 05:51 PM
  #4  
Quote: you would think the bigger HE would only make a diff under sustained hard running- the kind that uniformly heats up the coolant.

do you know the temps of the coolant resevior before your did the runs?

my car is stronger since codessmiths HE but i installed the c030 pump and attributed the performance to better cooling by more liquid flowing over the intercooler.....not that the coolant itself was at a lower temp.
Don't know what to tell ya. I just buy my stuff, install them, put it on the
dyno / drag strip and share it with ya guys.

Quote: I must have just missed you at the towers GTG. I left at 9ish. Apparently Donn made it out too. Too bad I missed it. Next time
I got there after that. Met up with Donn and caught up, haven't seen him
for almost 3 years now. Met a Blue C32 from my neck of the woods so that
was pretty cool. The bad thing was I was driving around looking like a idiot
trying to cruise in a parking lot
Reply 0
Dec 11, 2007 | 11:17 PM
  #5  
You probably met Ernie who has a black opal 2004 C32. Relatively new but pretty handy, he's a gear head that will do upgrades by next year. Well next time I will be sure to catch you
Reply 0
Dec 11, 2007 | 11:33 PM
  #6  
Wow that looks great. Thank you neihouma for collecting this data.
Reply 0
Dec 12, 2007 | 01:04 AM
  #7  
Rey,

thanks so much for posting up this data, it confirms what i found way back when i first installed mine...looking good!

PS- you need to edit your signature to include the LETMotorsports Heat Exchanger...
Reply 0
Dec 12, 2007 | 08:14 AM
  #8  
Quote: You probably met Ernie who has a black opal 2004 C32. Relatively new but pretty handy, he's a gear head that will do upgrades by next year. Well next time I will be sure to catch you
yeah that was me if all goes well i plan to start modding next year im just collecting as much info for now as possible since im new to germen cars
Reply 0

MB World Stories

The Best of Mercedes & AMG

Explore
story-0

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

 Verdad Gallardo
story-1

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-2

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-3

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-4

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-5

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-6

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-7

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-8

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-9

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
Dec 12, 2007 | 08:35 AM
  #9  
Quote: Rey,

thanks so much for posting up this data, it confirms what i found way back when i first installed mine...looking good!

PS- you need to edit your signature to include the LETMotorsports Heat Exchanger...
You're welcome Erick, it's the least that I can do for all the help you've given
me before you opened up LET.

OMG I should burn in hell for that. I have sigs & avatars off when watching
the forum. Guess what? Even though it was 15 degrees hotter since my
last visit on this Mustang dyno, I still made the SAME power IMAGINE
if it was 15 cooler like the last time?

BEFORE (Stock HE) and AFTER (LET HE) IAT on the dyno-dyno01graph.jpg   BEFORE (Stock HE) and AFTER (LET HE) IAT on the dyno-dyno2graph.jpg   BEFORE (Stock HE) and AFTER (LET HE) IAT on the dyno-dyno03graph.jpg  

Reply 0
Dec 12, 2007 | 01:56 PM
  #10  
I think you are still going to make the same basic power, but the only difference is that you will not overheat and loose the power over time.

I really hate reading this thread because I now want one so bad but cant come up with the cash, lol.
Reply 0
Dec 12, 2007 | 02:37 PM
  #11  
Quote: I think you are still going to make the same basic power, but the only difference is that you will not overheat and loose the power over time.

I really hate reading this thread because I now want one so bad but cant come up with the cash, lol.
How is that so? I do agree that the heat exchanger will make the heat soaking
to minimal and the power loss shouldn't be great as it would be with the
stock heat exchanger.

However the first run or two, it would be the peak HP/TQ, if it's 15 degrees
colder what would the car do?

PS. It's worth every penny
Reply 0
Dec 12, 2007 | 02:38 PM
  #12  
Nice.....
Reply 0
Dec 12, 2007 | 02:42 PM
  #13  
Quote: I think you are still going to make the same basic power, but the only difference is that you will not overheat and loose the power over time.

I really hate reading this thread because I now want one so bad but cant come up with the cash, lol.
You can sell your soul to Erick!
Reply 0
Dec 17, 2007 | 01:45 PM
  #14  
Rey, your ECU is leaving Evotech HQ today. You will get it tomorrow. Feel free to call me for feedbacks! Thanks!
Reply 0
Dec 17, 2007 | 04:11 PM
  #15  
Quote: Rey, your ECU is leaving Evotech HQ today. You will get it tomorrow. Feel free to call me for feedbacks! Thanks!
Will do Adam! I hope the info I sent you with the ECU
was enough
Reply 0
Dec 17, 2007 | 08:49 PM
  #16  
Quote: Will do Adam! I hope the info I sent you with the ECU
was enough
It's good enough!!! Hopefully you can track her soon!

Adam
Reply 0
Dec 18, 2007 | 05:35 PM
  #17  
REY !!! Thanks for calling me and keeping me informed.

GO Drive her like you stole it now!
Reply 0
Dec 19, 2007 | 01:33 AM
  #18  
My soul does not come cheap... Now the TT project on the other hand.... We just may have a deal, lol
Reply 0
Dec 19, 2007 | 02:27 AM
  #19  
Rey, how does your car run?

Can you please share to us your experience with Evotech software?
Reply 0
Dec 19, 2007 | 09:07 AM
  #20  
Got to sit in Rey's car last night... from first hand experience... it runs great so far!!!
Reply 0
Dec 19, 2007 | 11:53 AM
  #21  
Quote: Rey, how does your car run?

Can you please share to us your experience with Evotech software?
I gotta say the car is impressing me. Driving it on normal mode and traction
fully on, the car will shut down temporarly and then drive normal, while the
previous software couldn't flicker the Traction light for dear life unless I
partially disable it (ESP off). The pudding will be at the dyno and drag strip
which is coming soon Adam!

Quote: Got to sit in Rey's car last night... from first hand experience... it runs great so far!!!
Your car moves too Honson! Damn shame those tires were bald or I'd nail it
as hard as I nailed my C32
Reply 0
Dec 19, 2007 | 12:26 PM
  #22  
Congrats!
Reply 0
Dec 19, 2007 | 12:57 PM
  #23  
Have a dyno appointment yet?
Reply 0
Subscribe
Currently Active Users (1)
 
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