AMG 6.3 high-flow airbox demystified

[RM-6302]

Originally Posted by Jae Duk I thought only CA and NV and maybe of couple of other states were restricted to 91 octane? While the rest of the States are higher than that? If that is true then why would they say that America is only restricted to 451 while other countries are 457? Doesn't that mean that Texas C63s are closer to 457 if not 457. The formula for the measurement of the power produced by the engine is different. I also believe that the US measures with accessories attached and the rest of the wolrd does not. I am not a mechanical engineer, but I think that is correct. Is anyone out there can get the numbers for the conversion factors?

To remove this ad, register today or login if you already are registered!

[Vadim @ FD]

457 is DIN number, 451 is SAE number.

That all it is. MB rates their engine the same, no matter what octane.

[NORTH 44 C55]

Originally Posted by Sincity

Tks JJB! Now I need to take these #s to my local dealership and see what they make of it.

EDIT: Called the dealer and they can order them. Here are the PNs to use:

LT side 1560940506 $314
RT side 1560940606 $314

It takes 5 business days from Germany to the dealership. I wonder how these compare to the Carbonio?

Carefull. Those are the North American part #s

I have 2 sets of part #'s

North American
LT side 1560940506
RT side 1560940606

or

ROTW (the ones we want)

LT side A1560940306
RT side A1560940406

[Sincity]

Originally Posted by Jae Duk

I thought only CA and NV and maybe of couple of other states were restricted to 91 octane? While the rest of the States are higher than that? If that is true then why would they say that America is only restricted to 451 while other countries are 457? Doesn't that mean that Texas C63s are closer to 457 if not 457.

As I think more about it, I am not certain if the 451/457 is all octane related. The ROW doesn't have charcoals because their box tops were not designed like the North American ones.

[bhamg]

Originally Posted by Sincity

As I think more about it, I am not certain if the 451/457 is all octane related. The ROW doesn't have charcoals because their box tops were not designed like the North American ones.

Vadim is correct. My BMW E39 M5 was rated at 394 HP (U.S), 400 HP (Europe).

[Sincity]

Originally Posted by NORTH 44 C55

Carefull. Those are the North American part #s

I have 2 sets of part #'s

North American
LT side 1560940506
RT side 1560940606

or

ROTW (the ones we want)

LT side A1560940306
RT side A1560940406

Opps...you are correct. Let me go edit. I have so many PNs scribbled all over.

[jstefanop]

any update on this...has anyone received the European airboxs and done any testing with them.

[Sincity]

I only know of Lomita having a set.

[lomita]

Originally Posted by Sincity

I only know of Lomita having a set.

I have em, however, I feel a strong urge coming on for a set of long tube headers.........

I haven't done any dyno's, just want more performance.....

[andrew89930]

i called the dealer asking about EURO parts then I had heard the E63 had the same part number and sure enough it did. i have to pull my invoice but i can tell you they are dirt cheap and look exactly as pictured

[andrew89930]

E63 has no charcoal from what my guy told me in Georgia. Anyway I have the parts and they were Cheap as hell. Also got 2 piece front rotors for 700 a piece.

[Sincity]

I would need to see it. AFAIK, I cross-ref all the USA 63 vehicles and they all have the same P/N using the North American box tops.

[MB_Forever]

Originally Posted by andrew89930

E63 has no charcoal from what my guy told me in Georgia. Anyway I have the parts and they were Cheap as hell. Also got 2 piece front rotors for 700 a piece.

That is incorrect. All E63 come with charcoal filters. I have them on my car and verified them on 6 other E63s at one of the meets.

All US spec E63s, CLS63, S63, etc.... come with charcoal filters.

[pmknapp]

What about the inside of a CF air box from one of the after market suppliers, can anyone photo the inside of the top (and bottom)so that we can see what that looks like? I know the boxes are different but for myself just really curious to what they look like inside.
Thanks in advance.
Be safe out there.

[Sincity]

Carbonio

[NORTH 44 C55]

Thanks Sin. I have been looking for that photo for the last hour..LOL

[Sincity]

Looking at the Carbonio box, I wonder if we can just simply cut out the flat section of the tube on our NA boxes because that is what it looks like on the Carbonio. My concern was that two much air may flow under the MAF instead of through it and giving a false reading. However, Vadim stated it shouldn't matter.

<<<< Not brave enough to try.

[pmknapp]

Sin, Thanks for the pic. Very nice. I am suprised the "roughness" of the inside the box. I know that its insude and not seen but hummm still suprised. Looks like the Carbonio box has more volume for air, (bigger insde diminsions) I will have my shop make up a set of "clear ones" based on stock deminsions since I do not have the carbon ones, (unless someone wants to donate a set to me hehe) and just experiment with those under a "smoke" test to see the air flow and dead spots (turbulant air) in the box. I really want to lower the intake air temp in the box at least 20F, and lower the engine compartment temp as well. will update on this later. Again Sin, thanks for the pic.
Be safe out there.

[Sincity]

NP. They sell those thermo spacers that you install between the intake manifold and heads to reduce intake temp. Are you talking about reducing the radiated heat onto the boxes themselves?

[pmknapp]

Yes that heat as well as the "trapped" heat in the oven under the hood. Very aware of the spacers but they will not reduce the heat built up in the tubes while at idle or low speeds do to the heat build up, sure will clear quick but still there will be this lag from punching throttle to clean air. I know maybe barking up the wrong tree but oh well. But I know the intake tube build up a ot of heat just from radiated heat from engine.

[NORTH 44 C55]

Originally Posted by pmknapp

I am suprised the "roughness" of the inside the box. I know that its insude and not seen but hummm still suprised. Looks like the Carbonio box has more volume for air, (bigger insde dimensions)

I too was concerned about the interior not being smooth on the CF boxes when I took delivery. The reply I got was that once they applied the Heat Reflective Barrier inside the box they tested the air flow with the textured surface. Proved to provide a more consistent less turbulant flow directly to the TB vs. the smooth interior. That's why they went to production it textured....if that makes sense??

Yes the Carbonio Boxes are about 30% larger by Volume.

[Sincity]

Someone please explain to me how a larger volume box will be a benefit since the tubing still retains the same crossection?

[pmknapp]

My unintelligant guess would be more avaliable air to use (30% more), less starvation of air into the TB and maybe less force required to pull through the filters and snorkles on a limited stock system since it has the 30% more space for air to be stored up ready to use instead of pull through the system (filter and snorkle) to use on demand. Just my guess.

[UGOTMOPPED]

I am getting in a set of the Euro Boxes tomorrow. I will post pics tomorrow night for everyone. Stay tuned. This should compliment my Kleeman tune.

[Brian GT PRO]

Originally Posted by NORTH 44 C55

I too was concerned about the interior not being smooth on the CF boxes when I took delivery. The reply I got was that once they applied the Heat Reflective Barrier inside the box they tested the air flow with the textured surface. Proved to provide a more consistent less turbulant flow directly to the TB vs. the smooth interior. That's why they went to production it textured....if that makes sense??

Yes the Carbonio Boxes are about 30% larger by Volume.

Makes 100% sense, and to a degree they are right in their *basic* theory. If the interior surface was totally smooth, there would be no surface tension to create a laminar boundry layer, and would start to turbulate and create a turbulent free stream. A surface that is not totally smooth will allow a laminar boundry layer to be created and have an accelerating airflow effect, given the right set of circumstances. The airbox does need to be carefully designed in this respect for sure to get true gains.