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Thread: Fastest diesel cars on Nurburgring?

  1. #51
    Regular Kev_G's Avatar
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    Quote Originally Posted by 951S View Post
    Is your car stock, 204HP?
    A remap really helps a lot on theese cars!
    I am not sure how much the downpipe helps, I guess about 10HP extra (?). The downpipe also lowers the backpressure / exhaust temperature (makes your engine more happy..).
    The KW V2 suspension is very nice too. It is a little stiffer (when adjusted to full soft) than the original m-sport suspension, but not much (this car is my daily driver).
    On the track, the KW V2 is better than the stock m-sport suspension (the car is more stable).
    Mine was the 197 but is now 250bhp with over 400 torques. The suspension set up interests me but think it will be way to extreme for me I don't plan (famous last words) to touch this car apart from maintaining it!
    Daily - E91 325d M-Sport Touring
    Project - Astra Mk3 with Saab B204 engine (sitting in the garage)
    Track - Suzuki Swift ZC32 Ex Rent 4 Ring

  2. #52
    I've been enquiring with ecotune about some hybrid turbos for my f11.
    Seems the boxes can handle some serious powers

    Planetary 8spd zf box is mighty
    SILVIAAAAAAAAAAAAAAAAAAAAAAARGHHHHHHHHHH S14!!!!!!

  3. #53
    The lump in my X5 (m50d) is 380hp/740Nm. I think it was available in a 5-series in some countries. Thats more potent than the current Alpina diesel motors. Dunno how much difference a 5-series to 3-series would make.......

  4. #54

  5. #55
    Regular Floyd's Avatar
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    BMW 123D M Sport. Blacked out windows, leaning baaack...

  6. #56
    The more I drive my 335D and I am not driving my Fabia I think the 335D might be a better tool for doing a nice lap of the Ring. One thing is for sure, the BMW is a darn sight more comfortable.

    I think all it would need is an intercooler, hybrid turbos, a set of PS4 tyres (brakes too!) and possibly couple of other bits and it would be a bit of a weapon. 450hp, point and squirt.
    Jason - Oil burner
    http://www.youtube.com/watch?v=TOE4nbT5NGY 315bhp dyno run. Finally, 300+
    http://www.youtube.com/watch?v=zDUMEte1t50 13.4 second 1/4 @ The Pod

  7. #57
    Regular Kev_G's Avatar
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    Quote Originally Posted by TDIfurby View Post
    The more I drive my 335D and I am not driving my Fabia I think the 335D might be a better tool for doing a nice lap of the Ring. One thing is for sure, the BMW is a darn sight more comfortable.

    I think all it would need is an intercooler, hybrid turbos, a set of PS4 tyres (brakes too!) and possibly couple of other bits and it would be a bit of a weapon. 450hp, point and squirt.
    They go well. My 325d in standard form with just pad, fluid and hose upgrade worked well.
    Daily - E91 325d M-Sport Touring
    Project - Astra Mk3 with Saab B204 engine (sitting in the garage)
    Track - Suzuki Swift ZC32 Ex Rent 4 Ring

  8. #58
    Quote Originally Posted by Kev_G View Post
    They go well. My 325d in standard form with just pad, fluid and hose upgrade worked well.
    Good to hear. Trip booked in September and at the rate my Fabia is suffering with headlift, might be a safer bet to use the BMW.
    Jason - Oil burner
    http://www.youtube.com/watch?v=TOE4nbT5NGY 315bhp dyno run. Finally, 300+
    http://www.youtube.com/watch?v=zDUMEte1t50 13.4 second 1/4 @ The Pod

  9. #59
    Regular Kev_G's Avatar
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    Quote Originally Posted by TDIfurby View Post
    Good to hear. Trip booked in September and at the rate my Fabia is suffering with headlift, might be a safer bet to use the BMW.
    I'd lap it again, I would like too now its mapped actually lol
    Daily - E91 325d M-Sport Touring
    Project - Astra Mk3 with Saab B204 engine (sitting in the garage)
    Track - Suzuki Swift ZC32 Ex Rent 4 Ring

  10. #60
    Oh the small turbo on my 535d blew up last yr so since I have done

    New oem small turbo
    Hybrid large turbo
    Wagner intercooler
    Remap
    Dpf/cat delete

    Need to get it back on the dunk but does 0-100 in 10secs now
    SILVIAAAAAAAAAAAAAAAAAAAAAAARGHHHHHHHHHH S14!!!!!!

  11. #61
    Quote Originally Posted by karan View Post
    Oh the small turbo on my 535d blew up last yr so since I have done

    New oem small turbo
    Hybrid large turbo
    Wagner intercooler
    Remap
    Dpf/cat delete

    Need to get it back on the dunk but does 0-100 in 10secs now
    This is where I want to take my 335D - currently DPF delete and 350hp / 520 lb/ft, but would like to get to 450 without a huge extra amount of torque, as not that sure what the gearbox can take.
    Jason - Oil burner
    http://www.youtube.com/watch?v=TOE4nbT5NGY 315bhp dyno run. Finally, 300+
    http://www.youtube.com/watch?v=zDUMEte1t50 13.4 second 1/4 @ The Pod

  12. #62
    Quote Originally Posted by TDIfurby View Post
    This is where I want to take my 335D - currently DPF delete and 350hp / 520 lb/ft, but would like to get to 450 without a huge extra amount of torque, as not that sure what the gearbox can take.
    Hmmmm yeh i get occasional converter slip in high gears up hill at about 1800-2000rpm and I’m
    On the stronger zf8spd
    SILVIAAAAAAAAAAAAAAAAAAAAAAARGHHHHHHHHHH S14!!!!!!

  13. #63
    Quote Originally Posted by TDIfurby View Post
    This is where I want to take my 335D - currently DPF delete and 350hp / 520 lb/ft, but would like to get to 450 without a huge extra amount of torque, as not that sure what the gearbox can take.
    Automatic mot failure now though isn't it?
    I'm arresting you for murdering my car you dyke digging tosspot

  14. #64
    Quote Originally Posted by Gary Kinghorn View Post
    Automatic mot failure now though isn't it?
    Are the modifications visible?
    Unlikely if done on the reverse of the standard box and behind heat shields
    SILVIAAAAAAAAAAAAAAAAAAAAAAARGHHHHHHHHHH S14!!!!!!

  15. #65
    Quote Originally Posted by TDIfurby View Post
    This is where I want to take my 335D - currently DPF delete and 350hp / 520 lb/ft, but would like to get to 450 without a huge extra amount of torque, as not that sure what the gearbox can take.
    How are you planning to get the HP without the Torque? :)
    Thordur Magnusson
    Road - E39 M5 Twin SC
    Track - E30 M3 S85 - build in progress.....

  16. #66
    Quote Originally Posted by bimmer View Post
    How are you planning to get the HP without the Torque? :)
    You can limit the boost mid range but the larger turbo allows more flow at higher rpm with less back pressure
    SILVIAAAAAAAAAAAAAAAAAAAAAAARGHHHHHHHHHH S14!!!!!!

  17. #67
    Just got to watch out for smoke. Any of that stuff and again it's an automatic MOT failure.
    I'm arresting you for murdering my car you dyke digging tosspot

  18. #68
    Quote Originally Posted by karan View Post
    You can limit the boost mid range but the larger turbo allows more flow at higher rpm with less back pressure
    Adding torque at the higher rpm => more hp ;)
    Thordur Magnusson
    Road - E39 M5 Twin SC
    Track - E30 M3 S85 - build in progress.....

  19. #69
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    i thought HP was a factor of torque


    like torque multiplied by highest revs at which the engine achieves it and divide the lot by 5252 or something along these lines?


    so increasing the revs at which or during which the torque is produced would in fact increase HP ?
    to the hedge, and beyond.

    R1 4XV, XF 3.0D

  20. #70
    Quote Originally Posted by djuwenda View Post
    i thought HP was a factor of torque

    like torque multiplied by highest revs at which the engine achieves it and divide the lot by 5252 or something along these lines?

    so increasing the revs at which or during which the torque is produced would in fact increase HP ?
    HP is indeed a function of torque but not in the way you describe.

    For every rpm you have the following relationship between the two:

    hp(rpm) = constant * torque(rpm) * rpm

    So if you know either torque or hp at a given rpm, you can calculate the other one. The constant depends on the units you choose to use.

    The 5252 "magic" number is coming from the constant used when using ft-lbs, then the constant is 1/5252. So from the formula above you can see if the rpmīs are 5252 they cancel each other out and hp and torque become "equal" at that only rpm. I say "equal" because they are obviously different things and cannot be equal, only the numerical values for them.

    But from this formula you can see that torque is more valuable at a higher rpm in order to produce horsepower. One more Nm at 7000 rpm gives twice as much hp as one Nm more at 3500 rpm.

    How all this is figured out is nicely explained here:
    https://www.youtube.com/watch?v=lt7iUBE3_AE
    Last edited by bimmer; 10-06-2018 at 01:14 PM.
    Thordur Magnusson
    Road - E39 M5 Twin SC
    Track - E30 M3 S85 - build in progress.....

  21. #71
    Quote Originally Posted by bimmer View Post
    Adding torque at the higher rpm => more hp ;)
    Yes I understand that but torque at lower/mid rpm increases load on box/converter
    SILVIAAAAAAAAAAAAAAAAAAAAAAARGHHHHHHHHHH S14!!!!!!

  22. #72
    Quote Originally Posted by Gary Kinghorn View Post
    Just got to watch out for smoke. Any of that stuff and again it's an automatic MOT failure.
    Yep and I can't see many MOT people, letting this one slide its hardly like its not visible to the rest of the world , like your horn not working
    Volvo V60 D5 R Design
    Nick Oak road tested Mk 2 ABF Golf Gti 16v

  23. #73
    Quote Originally Posted by Gary Kinghorn View Post
    Just got to watch out for smoke. Any of that stuff and again it's an automatic MOT failure.
    I think that's only 2014+ cars that have to meet euro 6. I don't believe my 2006 335D needs to be clear, as long as it passes the particulate test and the tester hopefully believes I still have DPF fitted....
    Jason - Oil burner
    http://www.youtube.com/watch?v=TOE4nbT5NGY 315bhp dyno run. Finally, 300+
    http://www.youtube.com/watch?v=zDUMEte1t50 13.4 second 1/4 @ The Pod

  24. #74
    Regular Floyd's Avatar
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    I think there's a level of subjectivity with that test on older cars.
    BMW 123D M Sport. Blacked out windows, leaning baaack...

  25. #75
    Quote Originally Posted by karan View Post
    Yes I understand that but torque at lower/mid rpm increases load on box/converter
    Yes and you may also want to bleed that off because of traction issues.

    What I was just getting across is that you can only get more hp with more torque ;)
    Thordur Magnusson
    Road - E39 M5 Twin SC
    Track - E30 M3 S85 - build in progress.....

  26. #76
    Quote Originally Posted by TDIfurby View Post
    I think that's only 2014+ cars that have to meet euro 6. I don't believe my 2006 335D needs to be clear, as long as it passes the particulate test and the tester hopefully believes I still have DPF fitted....
    From what I've read it's any car with a dpf fitted.... So the Skoda might be in a spot of bother
    I'm arresting you for murdering my car you dyke digging tosspot

  27. #77
    Regular Prawn's Avatar
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    Quote Originally Posted by bimmer View Post
    Yes and you may also want to bleed that off because of traction issues.

    What I was just getting across is that you can only get more hp with more torque ;)

    I think the issue here is just the wording.

    More torque at higher rpm is what you need for more HP, not necessarily higher peak figures.

    You could have 2 cars producing 450lbft peak at 2000rpm, but wildly different peak HP due to the way each car is able to maintain that torque as the revs rise.
    Wrong-wheel Drive, Turbocharged, and proud!

    A3 track car

  28. #78
    Quote Originally Posted by Prawn View Post
    I think the issue here is just the wording.

    More torque at higher rpm is what you need for more HP, not necessarily higher peak figures.

    You could have 2 cars producing 450lbft peak at 2000rpm, but wildly different peak HP due to the way each car is able to maintain that torque as the revs rise.
    Exactly.
    Thordur Magnusson
    Road - E39 M5 Twin SC
    Track - E30 M3 S85 - build in progress.....

  29. #79
    Quote Originally Posted by Gary Kinghorn View Post
    From what I've read it's any car with a dpf fitted.... So the Skoda might be in a spot of bother
    Good job it never had a DPF then It predates all that rubbish, and I think the smokeless thing does only apply to euro VI cars. My 335D is euro V so just needs to pass the smoke test and have the DPF in. Luckily my DPF delete still looks like a DPF so fingers crossed.
    Jason - Oil burner
    http://www.youtube.com/watch?v=TOE4nbT5NGY 315bhp dyno run. Finally, 300+
    http://www.youtube.com/watch?v=zDUMEte1t50 13.4 second 1/4 @ The Pod

  30. #80
    Depends if the tester gives the dpf a 'tap' with the corrosion assessment tool, "knock knock"...sounds hollow.

    Fail.

  31. #81
    Quote Originally Posted by TDIfurby View Post
    Good job it never had a DPF then It predates all that rubbish, and I think the smokeless thing does only apply to euro VI cars. My 335D is euro V so just needs to pass the smoke test and have the DPF in. Luckily my DPF delete still looks like a DPF so fingers crossed.
    I've looked at a couple of places and non refer to Euro 6 including the .gov site

    I'm arresting you for murdering my car you dyke digging tosspot

  32. #82
    I think I was thinking of the particulate limits


    Vehicle first used

    Type

    Value


    1. First used before July 2008 Non-turbo 2.5m-1 or plate value if lower
    Turbo 3.0m-1 or plate value if lower
    2. First used on or after 1 July 2008 All diesels 1.5m-1 or plate value if lower
    3. First used on or after 1 January 2014 All diesels 0.7m-1 or plate value if lower


    The visible smoke thing is an interesting one as I look to fall in to that, but I'll be fine if its visible smoke at tickover, as it's only a little wispy on full power. I think even stood still and revving it there's no smoke.
    Jason - Oil burner
    http://www.youtube.com/watch?v=TOE4nbT5NGY 315bhp dyno run. Finally, 300+
    http://www.youtube.com/watch?v=zDUMEte1t50 13.4 second 1/4 @ The Pod

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