Aftermarket air filter sound - Exhausts / Induction (Mk3 Mondeo) - TalkFord.com

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Aftermarket air filter sound


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8 replies to this topic

#1 kokenyes1

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Posted 30 June 2020 - 08:10 AM

Hi guys, 

 

I took down the stock air filter and the box because i wanted to hear the noise while the turbo spools up. (Mondeo mk3 2002 TDDi 115hp)

Without any filters or box, there is no sound when the turbo draws air. 

I heard from another TDDi, same engine same year the loud and thick sound without air filter and box. 

 

I put a "sport" air filter but the sound is the same.

I was expecting, hearing from the others to be louder and thicker, that sound when the turbo receives a lot of air.

 

What can be the problem?

Without air filter the same engine sounds different..

 

PS: the turbo spools good, the car is running good, it pulls good. It's remapped.

 

 

Thank you,



#2 ST56

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Posted 30 June 2020 - 05:30 PM

Hi

 

To achieve turbo sounds with the TDCi engine you just need a straight through exhaust, or exhaust leak. Perhaps that also works for the TDDi engine.

 

Peter


MK5 Mondeo 5 Door Hatch 210PS Titanium X Full Bodykit on 19" Y-Spoke Wheels.
Previously Mondeo MK3 2.2 ST Tdci. (ST56MON).

Previously Mondeo MK2 ST200.

Previously Sierra XR4x4.

Previously Escort XR3i, Capri, Sierra, Escorts RS2000, RS1600, Mexico & 1300GT.
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#3 ul9601

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Posted 01 July 2020 - 05:38 AM

what does a diesel turbo sound like anyway?


2003 Mondeo 2.0 Duratec HE petrol MTX-75 5 speed manual (pre-face Mk3)


#4 raynkar

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Posted 01 July 2020 - 09:36 AM

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what does a diesel turbo sound like anyway?

 

For some reason a lot of people like this choo sound. They do an EGR delete, fit a decat and straight through exhaust.

 

When going to a car meet I tend to find the 600-1000HP fast/sporty cars don’t make this noise, whereas older very low powered cars will have owners who love it :)

https://youtu.be/7FLcO-8WZd0


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#5 ul9601

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Posted 01 July 2020 - 09:42 AM

 

what does a diesel turbo sound like anyway?

 

For some reason a lot of people like this choo sound. They do an EGR delete, fit a decat and straight through exhaust.

 

When going to a car meet I tend to find the 600-1000HP fast/sporty cars don’t make this noise, whereas older very low powered cars will have owners who love it :)

https://youtu.be/7FLcO-8WZd0

 

On diesel? How does that work?

We call that "dose" here - fully hectic uleh... not turbo diesel though.

https://www.youtube....h?v=m09lFNb_KYE

That guy cracks me up lol


2003 Mondeo 2.0 Duratec HE petrol MTX-75 5 speed manual (pre-face Mk3)


#6 PURPLE_2L_LX

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Posted 01 July 2020 - 01:40 PM

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Worst noise ever heard was a Capri. It made such a racket and not a nice V8 burble

yet it was the slowest thing pulling away.

 

All that noise and no go.. I prefer the street sleeper approach.


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#7 ST56

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Posted 01 July 2020 - 05:11 PM

what does a diesel turbo sound like anyway?

 

 

Hi

 

This is an example of turbo chirp: https://youtu.be/y-BruE3KCA8

 

Noise also occurs on engine overrun as you go through the gears. You often get this sound when there is a small leak in exhaust.

 

Peter


MK5 Mondeo 5 Door Hatch 210PS Titanium X Full Bodykit on 19" Y-Spoke Wheels.
Previously Mondeo MK3 2.2 ST Tdci. (ST56MON).

Previously Mondeo MK2 ST200.

Previously Sierra XR4x4.

Previously Escort XR3i, Capri, Sierra, Escorts RS2000, RS1600, Mexico & 1300GT.
.

#8 raynkar

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Posted 01 July 2020 - 06:47 PM

Worst noise ever heard was a Capri. It made such a racket and not a nice V8 burble

yet it was the slowest thing pulling away.

 

All that noise and no go.. I prefer the street sleeper approach.

 

My 220 has the ‘sleeper’ look to perfection..........

 

Its been on the drive since May 2018 :)


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#9 ul9601

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Posted 01 July 2020 - 08:14 PM

"Dose" or "flutter" in petrol turbo occurs when you slam shut throttle (usually for changing gear but you can do just for fun of it) the compressed air bounces back from the throttle plate then tries to go the other way through the turbo compressor wheel - where you don't have blow-off valve/recirculation valve. It goes tzu zu zu zuzu...

It was (maybe still is) a thing to "tune" for the sound - depending on the pitch and the volume you want - by varying the intake pipe diameter and length etc. Quite a bit of science involved... ;)

Big in Holden Commodore VL turbo with RB30ET crowd...


Edited by ul9601, 01 July 2020 - 08:15 PM.

2003 Mondeo 2.0 Duratec HE petrol MTX-75 5 speed manual (pre-face Mk3)





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