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Thread: Karls 3.0 TDI build thread

  1. #121
    viceroy's Avatar
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    Very impressive runs mate.
    With tiptronic in mine I can only hope to get low 14s or maybe just touch high 13s
    | 2009 A4 3.0TDI quattro tip | Ice Silver | 19" OEM RS4 style wheels | PDC | Sunroof | Black Leather | Symphony Radio | Aftermarket Navigation & DVD | RS4 mesh grille | Custom mesh fog grilles |

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  3. #122
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    Quote Originally Posted by desertstorm View Post
    Thanks Rick, To be honest I was expecting something like 13.6-13.7 with just over 100mph. I wanted something that would match a standard B8 S4 Avant with the fuel economy of a diesel and looks like thats what I have.
    Have a few more small mods to make maybe get into the 13.2's .

    Karl.
    To be honest i also found my old tuned a6 about 80-90% of the s4 b6 performance with a good blend between performance and economy and none of the drawbacks, however diesels are a little boring to drive unless you have 550-600 Nm of torque to play with ! Well done with that mate...
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  4. #123
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    Great info, it makes me want to map my 245, what is your 0-60 time now?

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    This is from a previous post.

    Manual diesels not so good 0-60 as you can't do 60 in second as you can in most petrols so you need 2 gear changes but I would say it's some where in the low 5's 5.3 -5.4s if you get it right. Car isn't a lightweight it does weigh 1800Kg. A car with a DSG box would be a little quicker but I am not sure how it would handle 720Nm of torque.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  6. #125
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    Quote Originally Posted by desertstorm View Post
    This is from a previous post.

    Manual diesels not so good 0-60 as you can't do 60 in second as you can in most petrols so you need 2 gear changes but I would say it's some where in the low 5's 5.3 -5.4s if you get it right. Car isn't a lightweight it does weigh 1800Kg. A car with a DSG box would be a little quicker but I am not sure how it would handle 720Nm of torque.
    The tiptronics are no different and require a change to 3rd
    | 2009 A4 3.0TDI quattro tip | Ice Silver | 19" OEM RS4 style wheels | PDC | Sunroof | Black Leather | Symphony Radio | Aftermarket Navigation & DVD | RS4 mesh grille | Custom mesh fog grilles |

  7. #126
    viceroy's Avatar
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    Karl,
    Have you done any logging after the remap.
    What boost are you running?

    Thanks
    v
    | 2009 A4 3.0TDI quattro tip | Ice Silver | 19" OEM RS4 style wheels | PDC | Sunroof | Black Leather | Symphony Radio | Aftermarket Navigation & DVD | RS4 mesh grille | Custom mesh fog grilles |

  8. #127
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    Great results you got there

  9. #128
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    Thanks,
    Car is running around 1.75 bar of boost at 3K RPM dropping off to 1.6 bar at 4K RPM.The standard map runs 1.4-1.45 bar boost.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  10. #129
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    With some time off work and between the rain showers got around to fitting the exhaust cutout kit that I bought from sunny China.

    2.5 INCH EXHAUST CUTOUT REMOTE CONTROL ELECTRIC DUMP Y PIPE CATBACK CAT BACK TURBO BYPASS STEELE-in Complete Installations from Automobiles & Motorcycles on Aliexpress.com

    These are available on E-bay but they are more expensive.

    2.5"/63mm ELECTRIC EXHAUST CATBACK/DOWNPIPE CUTOUT/E-CUT OUT VALVE SYSTEM KIT | eBay

    Unfortunately had to pay import tax on the one from China but still worked out about £90 instead of £123

    I chose a 2.5 inch kit as I have some 2.5 inch stainless pipe from when I was modding the Passat. Also the standard exhaust on the Audi is 65mm or just over 2.5 inch.
    I knew the pipe supplied wasn't going to fit so I was going to have to do some welding and fettling.

    The quality of the components looked reasonable, the valve looked quite well made, some of the welding quality was slightly suspicious but better than my welding .





    location for the valve was here, plenty of space for the actuator and protecting it from some of the elements. Also the exhaust would be a little cooler here so will probably help reliability.



    After some measuring, tweeking, cutting, welding, angle grinding, fileing etc ended up with this.



    Here a close up of the cutout in action. Click on the picture to play the video



    And some revving of the engine whilst the valve is opened and closed, click on the picture to play the video.



    Located remote in the boot area for the moment.Currently plugged into the boot 12v socket, will hardwire it shortly.



    It's not as load as a full supersprint exhaust but I think it makes quite a nice noise now. Click the button and return to the sensible quiet exhaust, click again for hooligan mode .
    Need to do some logging of exhaust back pressure just to see if it's making any great difference, it feels like the turbo is picking up a little quicker but that is the kind of effect I would expect.

    Karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  11. #130
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    Never seen one of them before, weird little gizmo

  12. #131
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    Took some arty pictures of the car at the Weston Park Dubmania meeting last weekend, Taking advantage of the nice weather and the backdrop of trees and the fact the car was clean.







    Karl.
    JG51 AUD likes this.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  13. #132
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    Tweaked the suspension a bit yesterday by fitting the S-line Rear anti rol bar. This is the same as fitted to the S4/ S5 performance models. The SE standard one on mine is 19.7mm the thicker one 21.6mm .
    Cheap enough off Ebay for £40.
    Only 1.9mm thicker but with anti roll bars the roll resistance is equal to the diameter ^4.
    So 19.7*19.7*19.7*19.7 = 150614
    and 21.6 * 21.6* 21.6 * 21.6= 217678 217678 / 150613 = 1.45 so nearly 1.5 times stiffer.



    seems to have improved turn in a bit and reduced understeer which is what it's supposed to do.

    Karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  14. #133
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    Quote Originally Posted by desertstorm View Post
    Tweaked the suspension a bit yesterday by fitting the S-line Rear anti rol bar. This is the same as fitted to the S4/ S5 performance models. The SE standard one on mine is 19.7mm the thicker one 21.6mm .
    Cheap enough off Ebay for £40.
    Only 1.9mm thicker but with anti roll bars the roll resistance is equal to the diameter ^4.
    So 19.7*19.7*19.7*19.7 = 150614
    and 21.6 * 21.6* 21.6 * 21.6= 217678 217678 / 150613 = 1.45 so nearly 1.5 times stiffer.



    seems to have improved turn in a bit and reduced understeer which is what it's supposed to do.

    Karl.
    Hmm I was thinking of doing a similar mod on mine. Mine is also the SE but has the ADS adjustable dampers which specs the sport springs. Any idea what ARB mine would have Karl?

    Kane

  15. #134
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    You probably already have the thicker bar. The option code for suspension on my car is 1BA and is the only one listed with the 19.7mm bar.
    If you have 1BD , 1BE or 1BL then you will have the thicker bar.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  16. #135
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    Quote Originally Posted by desertstorm View Post
    You probably already have the thicker bar. The option code for suspension on my car is 1BA and is the only one listed with the 19.7mm bar.
    If you have 1BD , 1BE or 1BL then you will have the thicker bar.
    Ah I have 1BL. Cheers mate

    Kane

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    The exhaust mod has me thinking of a Milltek Valvesonic system that I read about a long time ago. Did It ever happen?

    Now I'm the wrong side of 50 there still a part of me that would like the noise for say 30 minutes a week, and the ability to flick a switch would be mega cool.

    I've seen some valved S4 systems that were an arm and a leg. Anyone found an off the shelf solution for the 3.0 tdi?

  18. #137
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    Karls 3.0 TDI now with added Methanol

    With GTI International just around the corner next weekend been working on extracting a bit more out of the car. Fancied having a go with Water Methanol, works quite well on diesels apparently and not that hard to install and prices are quite reasonable for some of the kits.
    Bought a Cooling Mist kit off Fleabay, some 6mm plastic fittings that the kit didn't come with, an in line filter and a 3Ltr Kart fuel tank to put the water / Methanol mix in.This basic kit comes with a pressure switch that I have teed into the boost pressure gauge pipe to actuate the pump. It's adjustable from 1-25 PSI. I couldn't see the point of buying a more advanced proportional controller as when the car is on boost it very rapidly builds up to 25-26 PSI, I intend setting the trigger point around 12-15 PSI.
    This kit came with a solenoid to stop any kind of siphoning in the system and these work a lot better than the check valves that some systems seem to use.

    The main bits of the install



    With the 3 litre tank located in the plenum chamber with the filter, this is covered with a plastic cover so looks standard when looking under the bonnet.



    Some people just use the washer bottle as a reservoir but squirting 50/50 water methanol all over the car seems a waste, so decided to keep them separate.

    Mounted the pump under the headlight on the passenger side. Plenty of room there and close to where I am going to mount the injector at the outlet of the FMIC.



    With the base of the headlight refitted which the headlight mounts into you can see little of the pump install.With the light refitted and the front bumper back on you cannot see any of the pump install. However removing the passenger side foglight trim allows you to get at the nozzle easily to check / change it without removing the bumper.



    Bought some Methanol off Fleabay



    Bought in bulk 25L, worked out better with the postage costs,



    Hopefully doing some logging runs this weekend and some tweaking of the activation pressure. Kit came with the wrong nozzle originally which would have put way too much water / meth in, taken some time to get the replacement. Hopefully it stops dry for GTI International next week, currently forecasting showers.
    British GP weekend as well so a bit of rain might make that more interesting.Hopefully will provide an improvement in power and associated reduction in intake and EGT temperatures.

    Karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  19. #138
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    I still think a water methanol injection is a band aid, and highlights a not efficient enough turbocharger IF you have increased EGT... However the gtb2260vk should be fine with 2 Bars of boost or 1.8 sustained without the EGT going sky high... I run my gtb2260vk with titanium compressor wheel at 2.5 Bar without detrimental issue, so far so good !
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  20. #139
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    I do agree a bit that water meth can help a car if the turbo is a little small or is being over worked but it's also useful if your intercooler isn't up to the job or in general to help the engine temperatures and performance.
    I did some data logging at GTI international this weekend.
    Starting with an intake temp of 25 degrees with no methanol by the time I got to the end of the run the intake temps had risen to 36 degrees and EGT to around 850 degrees. With the methanol switched on at the next run the intake temps were 25 degrees again at the start, by the time i had got to 60mph they had dropped to 23 and then slowly increased to 28 degrees and the EGT temps peaked at around 810 degrees.
    So the water meth does what it says, The intercooler on my car is a good size but you can't get a big enough intercooler in or the EGT temps do get too high then water meth might help.

    Karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  21. #140
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    Well took the car to GTI International on Saturday at the Shakespeare Raceway. A good day out looking at some very nice, expensive cars and running up the quarter mile after it had stopped raining in the morning.
    Did 11 runs in all and managed a new quickest time just beating the one I set at Santa Pod. I don't think the track surface there gives the same grip as at Santa Pod as I couldn't get the 60ft times I managed at Santa Pod,The fact I miscalculated the fuel and had over half a tank didn't help, the Methanol helped I think probably good for a tenth of a second.
    The fastest run a 13.35 seconds at 104.8 mph.



    Had 2 runs up against a 2007 Manual Audi S5, 4.2 V8 with 350bhp and supposed to be around 4.9s 0-60.



    Click on the picture below to play the video, bit boring as you don't see anything of the S5, the same in most of the videos as I just left the other cars at the line.



    The slip for that run



    Had another run against him, he seemed impressed with the performance of the car and when we lined up for the second run asked if I could slow down a bit so not to embarass him so much , LOL. He did try harder the second time around.



    Only lost 2 runs out of the 11, the one I should have won but when changing from 2nd to 3rd found 5th instead so just left it there. Still managed at 14.5 second run thanks to the torque of the engine.
    The other was an R32 but it must have been tweaked a lot as it ran a 12.5 at 120 mph. Still managed to beat him off the line and was in front till about half way up the strip when he came past me.The Traction and torque is just great.



    Click on the picture below to play the video



    Heres the timeslip



    I was hoping for a shot as the fastest diesel on the day and when they asked for people to come to the grandstand for the trophy presentation my name was mentioned. However they were calling up the fastest and second fastest in each class and I was second fastest :sad: so no trophy.
    Beaten by Michael Till who was about 0.3s quicker than me in a MK2 Golf synchro with a 2.0 TDI Skoda VRS BLT engine with a hybrid turbo and a 200bhp shot of NOS.Probably similar power outputs but he is probably 350Kg lighter than my car.

    Michael Till - Mk2 Golf 1.9 TDI Syncro - YouTube

    Good fun never the less.


    Karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  22. #141
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    Well took the car to GTI International on Saturday at the Shakespeare Raceway. A good day out looking at some very nice, expensive cars and running up the quarter mile after it had stopped raining in the morning.
    Did 11 runs in all and managed a new quickest time just beating the one I set at Santa Pod. I don't think the track surface there gives the same grip as at Santa Pod as I couldn't get the 60ft times I managed at Santa Pod,The fact I miscalculated the fuel and had over half a tank didn't help, the Methanol helped I think probably good for a tenth of a second.
    The fastest run a 13.35 seconds at 104.8 mph.



    Had 2 runs up against a 2007 Manual Audi S5, 4.2 V8 with 350bhp and supposed to be around 4.9s 0-60.



    Click on the picture below to play the video, bit boring as you don't see anything of the S5, the same in most of the videos as I just left the other cars at the line.



    The slip for that run



    Had another run against him, he seemed impressed with the performance of the car and when we lined up for the second run asked if I could slow down a bit so not to embarass him so much , LOL. He did try harder the second time around.



    Only lost 2 runs out of the 11, the one I should have won but when changing from 2nd to 3rd found 5th instead so just left it there. Still managed at 14.5 second run thanks to the torque of the engine.
    The other was an R32 but it must have been tweaked a lot as it ran a 12.5 at 120 mph. Still managed to beat him off the line and was in front till about half way up the strip when he came past me.The Traction and torque is just great.



    Click on the picture below to play the video



    Heres the timeslip



    I was hoping for a shot as the fastest diesel on the day and when they asked for people to come to the grandstand for the trophy presentation my name was mentioned. However they were calling up the fastest and second fastest in each class and I was second fastest so no trophy.
    Beaten by Michael Till who was about 0.3s quicker than me in a MK2 Golf synchro with a 2.0 TDI Skoda VRS BLT engine with a hybrid turbo and a 200bhp shot of NOS.Probably similar power outputs but he is probably 350Kg lighter than my car.

    Michael Till - Mk2 Golf 1.9 TDI Syncro - YouTube

    Good fun never the less.


    Karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  23. #142
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    Enjoying the Thread Karl
    Sounds like you had the exhaust flap open on those runs, but did not make much difference to performance considering you also had the methanol??
    Obviously made a good job of the straight through silencers.

  24. #143
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    I wasn't expecting a great difference TBH, On a hotter day the Methanol would definately have helped more, I did some logs on virtual dyno and the exhaust mod is only worth about 5bhp as the exhaust was pretty much straight through any way, sounds a bit nicer, the methanol probably good for 10bhp.
    I would say the actual track isn't as quick as Santa Pod as I couldn't get the same 60ft times and I had about 30Kg extra weight with fuel and stuff so to go a little faster was the result of the tweaks.

    The last run I did at GTI I put the camera on the steering wheel and filmed the clocks.
    I didn't lift at the quarter just kept it planted as you can keep going for a way and take a later run off point.
    Unfortunately forgot to turn off the ESP so launch is a little tardy due to the wheel spin. Makes about 0.2 seconds difference on the 60ft if you don't turn off the ESP and about 0.4 seconds overall on the run.
    Click on the picture to play the video. The engine management light is on due to the small fudge I make to the car to get the fans running when the car is in the queue, keeps the engine/ intercooler nice and cool.



    karl.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

  25. #144
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    Digging around the net looking for any videos taken on you tube and came across the Audi SRS website. As I went up the strip twice against an S5 off that site thought there might be something on there. Lots of pictures and videos including the S5 I ran against but no piccies or video of mine.

    AudiSRS.com :: AudiSRS @ GTI International - 5/6th July 2014

    There are a few interesting videos linked to showing how quick I think my car was in relation to RS and S cars. These were running on Saturday when I was.

    GTI International 2014 Sprint - B7 RS4 vs R8 V8 - YouTube

    B7 RS4 13.33 104 MPH

    R8 V8 13.8 106 MPH


    GTI International 2014 Sprint - Audi RS5 13.15s @ 107mph - YouTube

    Audi RS5 13.15s @ 107mph

    My little old diesel keeping pace with what would be considered more exotic faster company.

    Karl.
    kanecullen89 likes this.
    Karls 312bhp A4 3.0 TDI build thread http://www.audi-sport.net/vb/audi-s4...ld-thread.html

 

 
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