STD Tuning Engine How big should be the exhaust?

How big should be the exhaust?

How big should be the exhaust?

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DaimlerDK
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Naturally-aspirated

11
08-20-2015, 05:50 AM #1
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Hello,

how bis should be the exhaust, on an OM606 with TB70 and 7.5mm Pump?
I dont come over 1.2bar pessure with my orig. exhaust, is this a Problem?

King Regards
Kay
DaimlerDK
08-20-2015, 05:50 AM #1

Hello,

how bis should be the exhaust, on an OM606 with TB70 and 7.5mm Pump?
I dont come over 1.2bar pessure with my orig. exhaust, is this a Problem?

King Regards
Kay

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m1tch
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GT2559V

199
08-20-2015, 06:36 AM #2
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I have found that the stock system on my E300 with the OM606 is actually quite good at 2.5" - the car was the fastest production diesel car when it came out after all, I will be looking for a 3" exhaust, although for me I have an issue with the fact that the steering rack gets in the way of having a large downpipe + exhaust, a 3" system seems to be the norm though.
m1tch
08-20-2015, 06:36 AM #2

I have found that the stock system on my E300 with the OM606 is actually quite good at 2.5" - the car was the fastest production diesel car when it came out after all, I will be looking for a 3" exhaust, although for me I have an issue with the fact that the steering rack gets in the way of having a large downpipe + exhaust, a 3" system seems to be the norm though.

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barrote
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Superturbo

1,627
08-20-2015, 07:54 AM #3
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70 to 80mm all the way to the rear, with a small mufler at the end , mufler not silencer Wink
FD,
Powered by tractor fuel
barrote
08-20-2015, 07:54 AM #3

70 to 80mm all the way to the rear, with a small mufler at the end , mufler not silencer Wink

FD,
Powered by tractor fuel

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Hario'
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C300TD Wagon (W202)

894
08-20-2015, 07:56 AM #4
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I am keeping the stock 2.5" exhaust with de-silencer & de-cat. The turbo is a rotary muffler anyway.



Installed:
OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. [/i]
Hario'
08-20-2015, 07:56 AM #4

I am keeping the stock 2.5" exhaust with de-silencer & de-cat. The turbo is a rotary muffler anyway.




Installed:
OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. [/i]

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m1tch
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GT2559V

199
08-20-2015, 08:58 AM #5
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(08-20-2015, 07:56 AM)Hario I am keeping the stock 2.5" exhaust with de-silencer & de-cat. The turbo is a rotary muffler anyway.

I will be looking to add an 'exhaust cutout valve' to mine Big Grin
m1tch
08-20-2015, 08:58 AM #5

(08-20-2015, 07:56 AM)Hario I am keeping the stock 2.5" exhaust with de-silencer & de-cat. The turbo is a rotary muffler anyway.

I will be looking to add an 'exhaust cutout valve' to mine Big Grin

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AlanMcR
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mind - blown

400
08-20-2015, 11:34 PM #6
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I upgraded my OM606 based G with a shorter exhaust path (right side only). 2.5" tubing all the way out, with nothing but a Magnaflow 12276 in the path. That is a 24" stainless steel packed straight through silencer. Not at all noisy and the G went from 15.5s to 13.5s with no other changes (factory ECU).
AlanMcR
08-20-2015, 11:34 PM #6

I upgraded my OM606 based G with a shorter exhaust path (right side only). 2.5" tubing all the way out, with nothing but a Magnaflow 12276 in the path. That is a 24" stainless steel packed straight through silencer. Not at all noisy and the G went from 15.5s to 13.5s with no other changes (factory ECU).

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