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Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old June 11th, 2006, 11:35   #31
BORA130
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i have a 130bhp bora tdi. is it possible to upgrade it to 150bhp using the VAG COM
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Old August 15th, 2006, 10:53   #32
turkeyssr
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Fuel Economy: 44 avg.
Default Why not this?

For a 2003 ALH, why not simply do the EVRY MOD, then mufflerectomy, and then KERMA TDI 520s? It seems this would be the least expensive progressive route to go. What about fuel economy? It seems that no one has mentioned any loss in fuel economy with power mods, but I would think more fuel injected = worse fuel economy.
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Old August 15th, 2006, 21:32   #33
Mike_M
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Quote:
Originally Posted by turkeyssr
For a 2003 ALH, why not simply do the EVRY MOD, then mufflerectomy, and then KERMA TDI 520s? It seems this would be the least expensive progressive route to go.
Doing nozzles, EVRY and a mufflerectomy is certainly one low-budget route, but not by any means necessarily the "best"...that's an individual decision. One could point out that EVRY simply increases fueling, without increasing boost, so nozzles and an EVRY will give you more speed and more smoke, probably negatively affecting fuel economy a bit in the process.
Quote:
What about fuel economy? It seems that no one has mentioned any loss in fuel economy with power mods, but I would think more fuel injected = worse fuel economy.
Common fallacy. The engine will only inject the quantity of fuel that you need to maintain your current requested power...it's not like a gasser where you'll always get (more or less) a 14.7:1 air:fuel ratio, ergo more performance equals less fuel economy. On a TDI (and diesels in general), if you're only using 17hp, you'll only get the fuel to produce 17hp, no matter the nozzle size or ECU programming.

Actually, within certain limits, larger nozzles HELP fuel economy by squirting in the same amount of fuel in a shorter window, thus effectively advancing injection timing and potentially allowing a more complete burn. Of course, if you use the extra power that more fueling capacity makes available, you lose that benefit.
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Old October 10th, 2006, 00:59   #34
IBsurfer69
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i've had my 2004 jetta for 2 years and havn't thought much about adding performance parts but i've finally decided to look into it. i was already planning on getting DIGI-PD (bew) and i was thinking about possibilities for the exhaust system. i looked into themufflerectomy, but didn't want to go that way. i'm looking for a less restrictive exhaust system than the stock system, hopefully a ready cat-back system that i can order and bolt on. as far as noise, i like the sound from the mufflerectomy, but is there a way to get that sound with a cat-back system?
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Old October 10th, 2006, 01:02   #35
IBsurfer69
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o and before i forget to ask, the stock turbo is a vnt-15 that comes in the '04 jetta?
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Old January 27th, 2007, 21:34   #36
Onebadho
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04 jettas come with a Borgis weimer kkk39 turbo.. or something like that .. I dont recall off the top if my head but i know its not the vnt turbos
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Old March 3rd, 2007, 05:52   #37
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I curious if someone can give me a link to instructions on how reassemble all parts after an EGR delete project. This forum is simply toooo big ..
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Old August 13th, 2007, 06:56   #38
SeaFred
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Default Chipping 2006 Jetta TDI

I've just bought my first diesel - leftover new 2006 Jetta TDI - and love it. This is my first VW in over 40 years and it's great!

I'm concerned with blowing my 7-year warrantee. Wouldn't mind trying a chip (flash) but don't want the dealer to spot it and negate my expensive coverage. Anyone tell me how much danger there is of being "caught" and if the change is worth the price (almost $500 Canadian up here)?

Also, anyone have feedback on oil. Understand VW has its own standard for oil for this beast and I'd like to know if there are any choices. I'm not a fan of Castrol since they were caught marketing Syntax falsly as a synthetic.

Thanks for any advice or feedback.

Fred
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Old September 29th, 2007, 11:09   #39
LoveMyVW
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u could try the Diesel Power Module from concept1 www.concept1.ca in calgary ive got this chip in my car its just a simple plug and play setup with a very notice able power increase and for the oil i have switched over to amsoil my self not too sure who else would be making 50501 oil
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Old September 22nd, 2008, 14:58   #40
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Default Bigger turbo please

Hi im new to this site and have been searching it for days trying to discover which bigger turbo i can use,i have a 1998 transporter and i have installed a 1995 golf 1z ahu 90 bhp motor,i have .216 nozzles ready to go in. Im running the original turbo and header from the transporter which is the same turbo model as the golf engine a garrett T15, the only difference in the two turbos is that in the golf it sits beneath the header and in the transporter it sits above the header and the three bolt flange is the opposite way around,currently the engine is standard although i have fitted a front mount intercooler,built a custom 2'1/4 exhaust system and have a k&n panel filter,i have vag-com to adjust the pump once the nozzles have been installed but i want to upgrade the turbo for higher boost and greater flow,can anyone help or suggest where to look to find options or a solution to my problem?
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Old October 18th, 2008, 06:10   #41
Steve C
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Default Scared to buy Reman Turbo

I'm in need of a new turbo .Could someone point me in the right direction, for the purchase of a VNT-17. Is this a bolt on replacement/upgrade?? Need new turbo asap.
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Old October 25th, 2008, 16:09   #42
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you can buy new, kerma tdi.com
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Old November 19th, 2008, 08:57   #43
Victor Vazquez
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does anyone know where to get some 184mm injectors for a 90hp 2002 Mk4 tdi. So far the only ones i can fine are at kermatdi. THis is the link for the ones i was looking at:
http://www.kermatdi.com/servlet/-str...l?sfs=1f830531
Any help would be much appreciated.
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Old January 19th, 2009, 13:15   #44
plljas
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Question mk4 golf 130 turbo.

Hi guys / gals

I have a GT TDI 130 with a turbo issue , what happens normally is im going about 70 in 6 gear, i put my foot down a bit and the turbo starts but then fails, i need to turn the car off then on again and then its fine it also boots later than it should around 2100 revs i thought it should boot about 1800 , i do about 350 miles a week and it might do it once or twice , is there any one that could shed some light on this for me please? i would be very gratefull, cheers guys .

Last edited by plljas; January 19th, 2009 at 13:22.
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Old January 23rd, 2009, 12:44   #45
hatemi
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You either have overboost or underboost issues. The oberboost is more likely. You either have a bad tune, sticky N75 valve, vacume leak or sticky vanes on your turbo. The vacume leak sounds the most likely cause if you feel its lacking in the bottom end. Check the 3.2mm ID lines from vacume pump to the N75 to the turbo first.
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