Torque Cars

Diesel exhaust systems

Discussion in 'Diesel Chat' started by orca1911, 20 April 2019.

Tags:
  1. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    I often wonder if it's possible to upgrade the exhaust system to a better flowing one without making my car into one of those rolling coal type of mess on the road? (huge black cloud as soon as you push the gas pedal)

    I'd be interested in some examples of diesel exhaust systems done right and where to find them/buy them (for regular cars not trucks in my case).

    Any help on this matter would be greatly appreciated :)
     
  2. TCJBOLDIE

    TCJBOLDIE Torque King

    Messages:
    4,886
    From:
    Brisbane
    Car:
    JB Starion
    Any turbo powered vehicle will benefit from a larger than stock diameter free flowing exhaust system as that will allow the turbo to be more efficient by reducing any back pressure after the turbine exit which then allows the turbo to spool up faster.

    Been there done that :)
     
  3. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    That's what i know basically exhaust upgrades, but since I'm talking about a diesel car, i really want to avoid a black cloud every time when i hit the gas pedal.

    I was wondering if there are any products out there that could mitigate that effect while providing that exhaust free flow.
     
  4. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    I’ve got a Volvo S40 2.0d..A friend of mine made a bespoke stainless steel exhaust for mine using 3.0” tubing and a single silencer...sounds very nice...no black smoke although it’s custom mapped for perfect fuel/air mixture..
     
  5. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    Stock injectors?
     
  6. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    Yes..stock injectors and stock fuel pump..it’s got a K&N performance panel air filter,hybrid turbo and a Nissan skyline GTR intercooler..
     
  7. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    And with all those upgrades you have none of those black smoke issues or emission problems and such?
     
  8. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    None at all....my engine is the same as the Peugeot 2.0 HDI 2004-2010...I may also add that I’ve also removed the DPF filter..
     
  9. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    That's great then, i tried searching your posts about your volvo but didnt manage to find all of the details. Could you make a topic to sum up all your modifications and such if that isnt much of a hassle for you?

    I plan to upgrade/change my exhaust system but my engine is 1.6 not 2.0 HDI so im not sure how things will go with that but what i am sure about is that it would involve removing the dpf and lots of other things + remap.

    I just dont want to pollute like crazy and leave huge dust clouds behind me but on the other hand it feels very difficult to make modifications to a diesel car without the necessary know-how one should have.
     
  10. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    Tap on “torquecars” on the top left of this page then tap on car forums..go to the bottom of the page where vehicle manufacturers are and tap on Volvo..my threads should be near the top..Removing the DPF & EGR will require a remap as engine management lights may/will come on?..A remap is a great first mod to do,you should see around 35-40% increase in power + improved MPG...Make sure you use a reputable mapper and you shouldn’t have any issues regarding lots of black smoke bellowing out behind you like something out of 007!,,lol...it’s generally the poor “generic” maps downloaded off the internet that causes all those problems usually down to over fuelling!...
     
    obi_waynne likes this.
  11. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    There are so many things i don't know where even the simple dpf/egr/exhaust portion seems like too much info to soak in at first, the tiny details at least.

    Regardless of that ill learn what i can and consult the best people for any future project i might have so there will most likely be a lot of random questions here lol

    btw thank your for your time and input, i appreciate it, also your volvo looks awesome :D
     
    Greg1990 likes this.
  12. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    No worries..there’s plenty of people on here who’ll be more than happy to help..and thanks for the comment on the car..she’s 12yrs old but well looked after..
     
    Last edited: 28 April 2019
  13. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    Modifications know no age lol

    Mine is 14 and im hoping for 150 ponies one day.
     
    Greg1990 likes this.
  14. Lunchmoney

    Lunchmoney The Torque Meister

    Messages:
    1,156
    From:
    Poole, UK
    Car:
    '98 JDM Impreza STI
    12 years, 14 years.... Mine is 20 this year :rofl:
     
  15. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    lol Lunchmoney but I wasn’t aware they did an STI diesel?..
     
  16. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    Mine is around 180BHP with around 400ftlb torque..with the new hybrid turbo and skyline GTR intercooler I’m hoping to hit around 230+ when she gets re-mapped?...and you should see 150BHP+ with just a good re-map?...
     
    Last edited: 30 April 2019
    obi_waynne likes this.
  17. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    Well for starters im hoping for 125/130 with the removal of things like egr and dpf + replacing the exhaust system and then a remap followed by it, i got 110 now on stock and its a small car, you notice everything lol.

    Then i would go for suspension upgrades, wheels maybe and tires. If all goes well ill inspect everything on the car and see what needs improving and then go for a slightly bigger turbo and injectors if i manage to not mess it up with the stage 1 portion.

    Lots of ideas running through my head and at one point im asking myself why not swap a gti180 petrol engine in it and be done with it but maybe im hung up on the torque feel when the car lifts off. Where i live there's nothing but mountains and curvy roads so no point going past 200hp.
     
  18. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    Lets make a party when it reaches 21yo lol

    There's an sti diesel?
     
  19. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    No...lol..I’m just yanking his chain being a “scooby “ owner commenting on diesel chat...
     
    Lunchmoney likes this.
  20. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport

    If you do all the things you’ve mentioned in the first paragraph you will see well north of 150BHP...then look at upgrading the brakes..more go needs more slow..lol..
     
    Lunchmoney likes this.
  21. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    I sure do hope so but still take the safe road just in case. Usually the car comes with weak front disc brakes and drum brakes in the rear but on this one i got disc brakes front and back so i got that stopping part covered mostly + the car is lightweight.
     
  22. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    You should be ok there then...mine was disc all round as standard but I still upgraded the fronts to 320ml gross drilled and groved with 4 pot callipers..it stops very well and I find I can outbreak most “challengers “..lol..you mentioned dropping a 180BHP petrol engine in?..Don’t!..I’ve had some seriously powerful petrol engined cars in the past but none of them have had the pulling power of my Volvo!..Power is all about top speed whereas “torque “ is all about acceleration!!..You’ll be surprised what power/torque you could get out of that 1.6 engine?..if you do all the mods I’ve done you’ll see north of 200BHP which is what you feel is your maximum?..
     
    Last edited: 30 April 2019
  23. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    I really got hooked on the torque portion as you said, for me its all about acceleration and not top speed (since i cant really utilize it anywhere). That's the sole reason why i want to tune my car + it just looks so damn awesome too.

    I'm just worried that from all that torque the crank might break or something but i think it can be solved with proper mapping or something. Im hoping for 150 anyway and if all goes well after a while ill start searching where i can buy forged internals for the engine (doubt i will succeed since i tried and failed so far).
     
  24. Greg1990

    Greg1990 Tuner

    Messages:
    81
    From:
    Pontefract
    Car:
    S40 2.0D SE sport
    Don’t worry about the internals...diesel engines will cope with quite an increase in power.They are built a lot stronger than petrol variants due to the higher torque that they develop even in standard form...It’s generally the injectors that may need uprating to supply the extra fuel.
    Mine is still running stock injectors at 180BHP and I’m told I shouldn’t have to change them even with the new hybrid turbo and larger intercooler?...we shall find out in a couple of weeks when I get her on the dyno?...I’m anticipating that the clutch is going to be the weak link?...
     
  25. orca1911

    orca1911 Tuner

    Messages:
    54
    From:
    Canada
    Car:
    Peugeot 206 1.6 HDI
    Im curious to see how your results pan out, for some reason i recently got an offer for a 180 gti engine and a set of forged internals which is weird since i didnt really ask for any of that. I wanna see what the hdi has to offer first :Đ
     
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