tdi info

fuller0554 · May 12th, 2013, 01:34

Hi guys. i would love to do abit of tuning to my 850 tdi but i cant find much, ive found bits and pieces but not a start to finish prodject or a step by step etc. I would love to find some info i could have a good read through so i can deside how far i want to go and which parts to find. i have an auto and its only done 63k with most service history and is in very good nick for its age so the last thing i want to do is start going mad with head skimming and changing rods etc im just thinking 200-250bhp dpending on the cost it will be to get there.
Any info would be useful apart from things like "sell it and get an R etc" as the car is exactly what i wanted i just want to give it more performance"
Thanks a lot

RiPsTa33 · May 12th, 2013, 07:55

I would have a look at a remap or good tuning box first, i had a van aaken tuning box on my tdi when i bought it and it was easily as fast if not quicker than a standard T5.

artiedtke · May 12th, 2013, 11:27

http://forums.t5d5.org/topic/8749-v7...0-280hp-600nm/

From what I understand, what your looking for is achievable with a bit of tuning, turbo swap and an exhaust setup. I think the stock internals on this engine are good for a lot more power than your suggesting.

martin_r_smith · May 12th, 2013, 18:44

At last another member with similar plans to me! I put mine on the rollers last month with just a plug in box and egr removal, the result was 170 bhp and 270 ft/lb. Dyno chart is in diesel section somewhere. Now since then I have fitted bigger nozzles to get even more fuel in but as you can imagine there was lots of smoke due to a lack of air! So on goes a 3 bar MAP, boost now holds (after a few tricks) at 18psi, resulting in no more smoke than standard. Unfortunately the kkk k14 turbo turns into a bit of a hot air blower at a constant 18psi so either a more efficient intercooler is needed or a bigger turbo (probably going to whack an 18t on her first see how it goes) but probably both.

Dyno on saturday showed promise, 207bhp and 300+ ft/lb but my 125k mile clutch couldn't take it anymore! So now on order is a much better clutch capable of handling the extra power.

Hopefully with a better turbo and a few more tricks It will be even better!

Hope this helps

RiPsTa33 · May 13th, 2013, 10:59

http://www.vpcuk.org/forums/showthre...8k24-%29-turbo

martin_r_smith · May 13th, 2013, 17:56

The thought had crossed my mind!

May 12th, 2013, 01:34	#1
fuller0554 Member Last Online: May 21st, 2018 13:20 Join Date: Jun 2011 Location: oswestry	tdi info Hi guys. i would love to do abit of tuning to my 850 tdi but i cant find much, ive found bits and pieces but not a start to finish prodject or a step by step etc. I would love to find some info i could have a good read through so i can deside how far i want to go and which parts to find. i have an auto and its only done 63k with most service history and is in very good nick for its age so the last thing i want to do is start going mad with head skimming and changing rods etc im just thinking 200-250bhp dpending on the cost it will be to get there. Any info would be useful apart from things like "sell it and get an R etc" as the car is exactly what i wanted i just want to give it more performance" Thanks a lot

May 12th, 2013, 07:55	#2
RiPsTa33 Trader Last Online: Jul 7th, 2022 15:22 Join Date: Jan 2007 Location: Shildon	I would have a look at a remap or good tuning box first, i had a van aaken tuning box on my tdi when i bought it and it was easily as fast if not quicker than a standard T5. __________________ ABS Ecu Repairs £25 850 T5 304 Chip £80

May 12th, 2013, 11:27	#3
artiedtke Just one more thing... Last Online: Jul 10th, 2020 14:44 Join Date: Dec 2008 Location: North Wales	http://forums.t5d5.org/topic/8749-v7...0-280hp-600nm/ From what I understand, what your looking for is achievable with a bit of tuning, turbo swap and an exhaust setup. I think the stock internals on this engine are good for a lot more power than your suggesting. __________________ '98 V40 2.0T B4204T - died... '96 855 2.5 TDI D5252T - 255,000 miles "Diesel without turbo is like a woman without boobs... sure you can drive it, but there's always something missing."

May 12th, 2013, 18:44	#4
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	At last another member with similar plans to me! I put mine on the rollers last month with just a plug in box and egr removal, the result was 170 bhp and 270 ft/lb. Dyno chart is in diesel section somewhere. Now since then I have fitted bigger nozzles to get even more fuel in but as you can imagine there was lots of smoke due to a lack of air! So on goes a 3 bar MAP, boost now holds (after a few tricks) at 18psi, resulting in no more smoke than standard. Unfortunately the kkk k14 turbo turns into a bit of a hot air blower at a constant 18psi so either a more efficient intercooler is needed or a bigger turbo (probably going to whack an 18t on her first see how it goes) but probably both. Dyno on saturday showed promise, 207bhp and 300+ ft/lb but my 125k mile clutch couldn't take it anymore! So now on order is a much better clutch capable of handling the extra power. Hopefully with a better turbo and a few more tricks It will be even better! Hope this helps __________________ 1983 244

May 13th, 2013, 10:59	#5
RiPsTa33 Trader Last Online: Jul 7th, 2022 15:22 Join Date: Jan 2007 Location: Shildon	http://www.vpcuk.org/forums/showthre...8k24-%29-turbo __________________ ABS Ecu Repairs £25 850 T5 304 Chip £80

May 13th, 2013, 17:56	#6
martin_r_smith Premier Member Last Online: May 10th, 2022 21:01 Join Date: May 2009 Location: Wiltshire	The thought had crossed my mind! __________________ 1983 244

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