RENNtech Air Box Installed Today

[///AMG124]

Well, after waiting 2 weeks, it finally got installed today. The first box sent out was not the right one (W210) and so RENNtech FedEx'd the right one.

How is it you ask??

Looks 1-10: 10
Performance: 1-10: :confused: Can't tell

If anyone can tell me that they can tell the difference between 8 - 10 HP increasment from any mod, please contact me ASAP so I know how to determine it :D

http://images.andale.com/f2/124/107/8051513/1056247739584_DSC00160.JPG

Now I need to change the ugly thing-a-ma-giggys that deliver the air to the box. Any suggestions?

I was going to try and fabricate some out of stainless steel with a 45 deg bend to meet the box.

Suggestions appreciated.

[ConceptEuroMBZ]

It definately looks incredible, how much did that run with installation? Stainless steel idea is a great idea too, if possible, perhaps you should do a high polished alluminum. It will definately give your engine a very nice look.

Lookin good, keep up the good work:)

[///AMG124]

As for cost well, it list for $950.00 so I got it for $850.00. As for installation, well it just replaced the factory box. less than 5 minutes to install, so my mechanic pro-rated the 1 hour labor charge:D

High polished aluminum may be a great idea too. I will look into what is available.

[BenzoAMGpower]

i would say get the tubes powder coated red or something....powdercoating keeps off heat!!!!

[ConceptEuroMBZ]

i would say get the tubes powder coated red or something....powdercoating keeps off heat!!!!

Yea thats a great idea too, defintely would look nice as well. That price isn't bad just to have a nice renntech CF airbox, even if you cant feel performance:D

[W420]

Originally posted by ///AMG124
As for cost well, it list for $950.00 so I got it for $850.00. As

Let me get this straight.. As you were saying, they sent you the wrong one of W210 CF Airbox at first.. So this tells me their costs for W124 & W210 are about the same otherwise this mistake would most likely not happen. Then why is the box for W124 list for $950 while the one for W210 97 E420 list for $3,495 (with ECU) and $2,500 (swithout ECU)??? UNFAIR!! :mad:

Anyway, CONGRATS and welcome to the $1K PER HP CLUB. :D

To me, the minimal performance gain is not big deal cuz it looks pretty damn good and that works for me :)

EDIT - Just went to Renntech website to check their pricing structure again and I don't see W124 chasis listed under there. Hmmm weird!

[joe55]

Looks tight, much better than the stock stuff it comes with. Did you get before and after figures for it yet? I'd be curious to see how the numbers compare.

Nice job:cool:

Joe

[///AMG124]

W420,

Here are the RENNtech specs and prices for the W124...

RENNtech W124 Specs and Prices (http://www.renntechmercedes.com/splash/cars/eclass/eclassw124.html)

Tommy

[krk230]

you should dyno your ride...but the box looks mega-pimp...i like...:)

[C280 JR]

wow man, that looks really good...i like the engine bay now defenitively better than the stock...

BTW,

Karan, take ur away message off

Elvir

[run.exe]

I increased the volume of my 500E's OEM airbox by slightly more than that of RENNtech's offering...
for $450.00, total, thanks to Thomas Queen (Feather Carbon) using my OEM airbox as a template.

Performance gains are negligible, in my opinion; however, only a dyno can show before/after numbers
(no seat-of-pants-meter reading, here). I highly doubt a 10 BHP gain; +3-5 BHP is more likely.

I (and every other M119 owner with a RENNtech/larger volume air-box) are curious to know if you
encounter any stalling problems. Several Shop Foreman at Mercedes-Benz dealerships in the Bay Area
have told me that stalling is a common, reported problem with 500E/E500 owners who have the RENNtech
(or other 3rd-party, larger volume than OEM) airbox.

[shanta]

Originally posted by run.exe
I (and every other M119 owner with a RENNtech/larger volume air-box) are curious to know if you
encounter any stalling problems. Several Shop Foreman at Mercedes-Benz dealerships in the Bay Area
have told me that stalling is a common, reported problem with 500E/E500 owners who have the RENNtech
(or other 3rd-party, larger volume than OEM) airbox.

I told you that is bull ish. We have both had our stalling problems before upgrading the airbox. I will mention this to my foreman but I already know what he is going to say. I will also mention this to my friend at the dealership that does a good bit of racing and highly recommends Renntechs products and see what he says.

If your dealer wants to pull the proof out of the pudding, you can run my E420 airbox, which is the same as the my E500. I already did that and still I stall. It doens't matter what airbox I use.

[run.exe]

I'm not saying that our stalling problems are 100% (or even at all) related to our airboxes (since our stalling predated our new airboxes); rather, I am merely passing along the assertions of some senior techs (with 100+ years of collective experience among them) whose opinions I highly regard.

In fairness, accruing more data can only help us (all).

Your (OEM) airbox-swap experiment offer is most appreciated, but not required; I already have proven to Autobahn Motors that the airbox was not the culprit.

I have had my stalling problem for almost 3 years, now - longer than any other 500E/E500 owner, to my knowledge. I am certain Mercedes-Benz of North America will be interested to learn the solution - as even their senior-most technician ("Lou," from New Jersey) could not solve the problem/wrote it off as "solved," before he returned to the East Coast from California.

I have been a happy RENNtech customer for 4+ years; in no way is anyone inferring that their products are inferior/performance inhibiting... quite the converse.

[///AMG124]

Originally posted by run.exe
I'm not saying that our stalling problems are 100% (or even at all) related to our airboxes (since our stalling predated our new airboxes); rather, I am merely passing along the assertions of some senior techs (with 100+ years of collective experience among them) whose opinions I highly regard.

In fairness, accruing more data can only help us (all).

Your (OEM) airbox-swap experiment offer is most appreciated, but not required; I already have proven to Autobahn Motors that the airbox was not the culprit.

I have had my stalling problem for almost 3 years, now - longer than any other 500E/E500 owner, to my knowledge. I am certain Mercedes-Benz of North America will be interested to learn the solution - as even their senior-most technician ("Lou," from New Jersey) could not solve the problem/wrote it off as "solved," before he returned to the East Coast from California.

I have been a happy RENNtech customer for 4+ years; in no way is anyone inferring that their products are inferior/performance inhibiting... quite the converse.

Scott / Shanta:
This now makes all sense to me! As for me buying the CF airbox from RENNtech, I contacted Thomas and he told me that it would take a week or so that have his box sent to me and that I would have to send my box to him... so for an extra $400 or so dollars, I took the RENNtech instead since I wanted it quick and not too mention I do want to mod the complete car RENNtech.

As for the stalling problems that you both talked about, ever since I had the RENNtech air box installed, I have experienced stalling or near stalling (when braking, rpm's drop very low as if it wants to stall) and not too mention engine surge. I am under the impression that this is due to maybe the MAS or throttle body?? Also, I noticed that the when I start the car after the engine is hot, the car starts funny??

[BenzoAMGpower]

hmmmmmm, i got the airbox on my M113, and i havnt felt any problems with stalling. That problem your having is odd...you should definately get that checked out!!! I think it might be cuz the MAF is reading more airflow...but theres gota be a way to compensate with more fuel...maybe get your ECU tuned to run a bit richer!!

[shanta]

Scott,

All I am saying is that I know 100% my stalling issue is not caused by my airbox, so collecting data where stalling is caused by the airbox is not of interest to me, at this point, because I have already taken that out of the equation.

In any case my dealer has narrowed things down for me, and all I need to do is proceed witht he next steps.

Please bare in minds our cars are not regular stallers, ours only stall when doing sharp turns at slow speeds, or at least mines is that way. I never stall going straight, ever. So when collecting information you may want isolate regular stallers form sharp turn stallers.

[run.exe]

We have the exact same stalling problem, Shanta (U-turn cut-outs).

I will continue to try to resolve this $%^& and let everyone know what I find; likely, our solutions will be identical/similar.

:)

[hedpe]

I hadn't realized your stalling problem was never fixed. I read about it like 2 years ago...that sucks. Mine has a pulling problem, it pulls right even under allignment specs. It's gone to like 4 shops, its still a mystery.

[Rocky]

Originally posted by hedpe
I hadn't realized your stalling problem was never fixed. I read about it like 2 years ago...that sucks. Mine has a pulling problem, it pulls right even under allignment specs. It's gone to like 4 shops, its still a mystery.

Warped brake rotors?

[run.exe]

Originally posted by hedpe
I hadn't realized your stalling problem was never fixed. I read about it like 2 years ago...that sucks. Mine has a pulling problem, it pulls right even under allignment specs. It's gone to like 4 shops, its still a mystery.

Is this a by-product of your accident?

Frame/wheel-base issue, perhaps?

[Renn 208]

Originally posted by run.exe
Is this a by-product of your accident?

Frame/wheel-base issue, perhaps?

Hey Scott, just wondering, have you or Shanta found any number of examples of accident free 124.036 cars with the stalling-on-turns problem?

[hedpe]

it is a by-product

the frame was checked by 3 frame shops and all get a reading exact to the milimeter

it wasn't struck that hard to throw the frame off

i'm beginning to think its the front right strut

the front left strut popped up during the accident due to the wheel smashing into the jersey

it was replaced, but the right side strut was ignored, all the weight probably shifted to that side

[shanta]

Originally posted by Renn 208
Hey Scott, just wondering, have you or Shanta found any number of examples of accident free 124.036 cars with the stalling-on-turns problem?

No:(

Our stalling problem is very unique. While there have been people with 500E500's with stalling problems, they were remedied by measures that our cars seem to be immune to. Also those cars didn't have the same exact stalling on U-Turns problems.