C32 AMG, C55 AMG (W203) 2001 - 2007

C32 New 18" rims & SL55 intake - Car Feels Slower?

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Old 06-10-2012, 07:04 AM
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C32 AMG
C32 New 18" rims & SL55 intake - Car Feels Slower?

So I just fitted new rims and the full SL55 intake set-up with k&n inserts

Driving the car now it doesn't "feel" as quick as it did with the standard intake and 17's

Could it be the larger intake looses some low end torque?

Or just the bigger wheels rob some acceleration?

Old 06-10-2012, 07:53 AM
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Carlsson CM60 EX:C36AMG'96
wheels should make a little difference, should have test drove it after install wheels before the intake mods. Maybe the car has to adjust to the new more air?
Old 06-10-2012, 08:09 AM
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don't get me wrong the car is still very rapid....

but just seems a little different.
Old 06-10-2012, 08:27 AM
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Carlsson CM60 EX:C36AMG'96
hm, wheels could be making a little difference barely noticiblem, can't you do a reset on the car? if you really want to know if you slowed your car down change the intake to stock
Old 06-10-2012, 08:32 AM
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Yeah I'll get the diagnostic computer hooked up and do a reset...

I never thought about doing that.

Cheers
Old 06-10-2012, 10:46 AM
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Are the 18s appreciably heavier?
Old 06-10-2012, 01:23 PM
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1999 C43, 2008 P30 E63, 2014 SQ5, 2024 Model Y Performance
Originally Posted by w202mylove
wheels should make a little difference, should have test drove it after install wheels before the intake mods. Maybe the car has to adjust to the new more air?
Doubt it, as soon as I installed my Renntech intake the increase in power was instantly noticeable. Not saying there isn't some adaptation that needs to occur but there should be an increase noticed immediately and then the adaptation would make MORE power.

EDIT: Just noticed you have a C32, I can't speak to the need for adaptation for a F/I setup as mine is N/A
Old 06-10-2012, 02:20 PM
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Originally Posted by Saaboteur
Are the 18s appreciably heavier?
Yeah the 18's with tyres mounted are pretty heavy to be honest.
Old 06-10-2012, 02:52 PM
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Originally Posted by 503C43 ////AMG
Doubt it, as soon as I installed my Renntech intake the increase in power was instantly noticeable. Not saying there isn't some adaptation that needs to occur but there should be an increase noticed immediately and then the adaptation would make MORE power.

EDIT: Just noticed you have a C32, I can't speak to the need for adaptation for a F/I setup as mine is N/A
I doub it to, but what else can he tr?, he definetly slowed the car down with the new wheels, the stock c32's are pretty light. I always thought it would be barely noticeable to have heavier wheels on straight line performance
Old 06-10-2012, 04:05 PM
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Originally Posted by varoom
Yeah the 18's with tyres mounted are pretty heavy to be honest.
Originally Posted by w202mylove
I doub it to, but what else can he tr?, he definetly slowed the car down with the new wheels, the stock c32's are pretty light. I always thought it would be barely noticeable to have heavier wheels on straight line performance
Heavier wheels will definitely affect acceleration as well as braking. The less un-sprung weight the better
Old 06-10-2012, 05:10 PM
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Most def the wheels if they are appreciably heavier. One of the reasons I gave up my 19's even though I LOVED the way they looked. They just rode too hard for a Mercedes IMO and made the car feel really slow.

I went back to OEM and felt like a rocket again. But I just picked up some OEM C55 wheels and gonna try 18's, but I think they weigh just slightly more.
Old 06-10-2012, 05:37 PM
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C32 AMG
Nice one!

I LOVE the C55 wheels but couldn't find any in the UK.

Car still feels awesome but just seems to have lost a bit of Punch!

I don't think the SL55 set-up made a difference...but it's bigger so must be breathing better.
Old 06-11-2012, 10:11 AM
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I went with SL55/K&N setup on mine and went up 10hp on dyno (dynamics dyno befor eand after intake)...beleive I got more as with intakes you don't get the power until you are moving and the fans they throw in front of the car during dyno session can't replicate higher speeds.

I am sure it is your wheels, seen that played out on many platforms I've owned...Imore rotational mass has a good impact on acceleration....assuming the new wheels are appreciably heavier
Old 06-11-2012, 11:09 AM
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looks like i NEED a Pulley and Tune now
Old 06-11-2012, 12:29 PM
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And the benefit of the intake is really maximized with a pulley and tune.
Eurocharged FTW!
Old 06-11-2012, 12:39 PM
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On the flip side, your setup is beautiful!
Old 06-11-2012, 01:11 PM
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Originally Posted by Gramma_Benz
Most def the wheels if they are appreciably heavier. One of the reasons I gave up my 19's even though I LOVED the way they looked. They just rode too hard for a Mercedes IMO and made the car feel really slow.

I went back to OEM and felt like a rocket again. But I just picked up some OEM C55 wheels and gonna try 18's, but I think they weigh just slightly more.
I swapped up to C55 18"s a few years back and did not notice any performance difference but, the car looked a lot hotter.

Before:


After:
Old 06-11-2012, 03:21 PM
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a car that can't do the throttle reset.
Call me crazy, but I actually like the 17's better. I want me some LM's.
Old 06-11-2012, 04:37 PM
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Pointman = crazy.

LMs FTMFW. I thought I had gotten over my LM fixation and decided that I would eventually go with a set of Forgestar F14s. But now I'm going back on that and I think I will just plump for a set of LMs (eventually). Probably from VRwheels.com, you can get a decent set in 18" for about $2k, then they charge $150 or so to redrill from 5x114.3 to 5x112. Lots more selection at 5x114.3.

Last edited by Saaboteur; 06-11-2012 at 07:01 PM.
Old 06-11-2012, 04:50 PM
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a car that can't do the throttle reset.
Originally Posted by Saaboteur
Pointman = crazy.

LMs FTMFW. I thought I had gotten over my LM fixation and decided that I would eventually go with a set of Forgestar F14s. but now I'm going back on that and I think I will just plump for a set of LMs (eventually). Probably from VRwheels.com, you can get a decent set in 18" for about $2k, then they charge $150 or so to redrille from 5x114.3 to 5x112. Lots more selection at 5x114.3.
Good info, my man. Thanks. I have been shopping for some and just haven't been too well informed so been scratching my head and googling.
Old 06-11-2012, 06:20 PM
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C32 AMG
LM's are sweeeeeet
Old 06-11-2012, 07:10 PM
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a land yacht.
It's crazy what a difference an inch can make...
Old 06-11-2012, 07:59 PM
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Originally Posted by C_DirtyTwo
It's crazy what a difference an inch can make...
Sorry, but I have to....

"That's what she said..."
Old 06-12-2012, 12:00 AM
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a land yacht.
Originally Posted by Gramma_Benz
Sorry, but I have to....

"That's what she said..."
Hahah I'm glad someone got it
Old 06-14-2012, 12:40 PM
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when i put my 18in LM's on my 32 felt a little quicker, but thats probably because the wheels are a bit lighter than stockers.


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