Read about the whole thread. Intresting stuff. Especially noticed fjtwelves project with impressive +600nm torque numbers. I have a stock A4 B6 2,5TDI AKE -01. Cams checked and all lifters changed a bit over 10000km ago.

• Free Audi Repair Manuals

About the same time stock flywheel was replaced along with SRE clutch setup and standard clutchplate. Car has 6sp manual transmission and naturally quattro powertrain. What I'm looking for is more power but which is the 'best' way to do it?

- Remap only - 200-210bhp? - Upgrade turbo ok, where stock AKE nozzles are limiting? Around that same 200bhp or higher? Is there a point to upgrade turbo compared to remap only? - New IC solution (custom DSMICs or FMIC) but I guess this isn't first things. Fjtwelve reported having +260bhp/+600nm with stock ICs. As long as they work and don't leak.

Nozzles, unavoidable at some point. I know DP isn't that ideal and why not have some V6 noise. But which is 'the best' route to go? I wound't ask but as you propably guess I can't have them all at once. Do these make any sense: Stage 1: - Standard turbo, hi-flow exhaust, upgraded IC solution, cleaned intake-manifold and remap (propably no more than 200-220bhp? Where AKE nozzles drop off?) Stage 2: - Upgraded turbo, big nozzles and remap OR: Stage 1: - Upgraded turbo, standard nozzles and remap Stage 1.5: - Upgraded IC solution, hi-flow exhaust, cleaned intake manifold Stage 2: - Big nozzles and remap Basically later solution might give more in Stage 1 allthought there might be some effect on those IC and exhaust mods.

But still far from upgraded turbos capabilities. The A4 AKE has an injection pump that is limiting injection quantity at 55mg. You can configure the chip to use these 55 mg mg but you will experience boost creep above 3000 rpm.

So a bigger turbo might give you the abbility not to experience boost creep but it is not really a gain in power. With 55mg you will also have increased injection time and exhaust temperature will raise.

It may kill you the exhaust valves by overheating them. Not the early ones! The early 2001 a4 quattros have all metal intercoolers and the sport models have the same turbo as the a6, either ending in S or F. Later 02 on a4 have the extra immobiliser and plastic ended intercoolers. I have fjtwelve old a6 which i bought with a broken engine and done a little work to get it back on the road, the torque ripped the crankshaft pulley and the timing jumped all over the place, the belt moved and all rockers shatered. The heads were ported and the compression lowered.

I also had the race nozzles balanced and pop tested and the plastic ended intercooler replaced with the early allroad intercooler- also full alloy so it can hold more boost without splitting. Also the old turbo had a damaged turbine due to rusty exhaust manifolds sending shards of metal into the turbo so that got replaced with a turbine off a GT2256v mercedes turbocharger.

Free Audi Repair Manuals

The larger turbine is a better match to the 60mm compressor wheel and i should not get boost creep- not that i noticed any before. Now the car is pushing about 300Bhp with a GTB2260vk turbo which i modified to fit but aiming for a little more so a hybrid turbo from Darkside will replace it shortly. The flywheel rumbles if i step on it hard but the clutch holds pretty well.

I have a stronger clutch to fit when weather gets warmer but i don't drive it much lately! Not the early ones! The early 2001 a4 quattros have all metal intercoolers and the sport models have the same turbo as the a6, either ending in S or F. Later 02 on a4 have the extra immobiliser and plastic ended intercoolers.

I guess ICs have to be checked along with turbo. I know it's 1st gen VNT technology and I was recommended to use at least 2nd gen VNT for a hybrid (or then go for 2260). What about the VP44 pumps. Are all B6 models with 55mg limit or is there a 'early-late' model difference as well?

At least my cars MAF isn't Bosch which indicated for 'transition' model on some parts. Stock turbo is also gen 1 VNT and VP44 ends with 030 which indicated for 'big pump'? Car is 09/2001 so it's very early AKE engined B6 quattros. The 180 Bhp used the GT2052v turbo which IS the 2nd generation VNT turbo with narrow vanes on the vnt pack. It also have a slightly larger (2mm or so) compressor wheel. Also you need to check the nozzles, early a6 quattro had DSLA930 and later had DSLA1025, the 150Bhp had DSLA683 which are compatible with the PP683/race683 nozzles. I also have 2 early 01/02 audi a4 v6 quattro and one 03 model, one is the sport version and had the S turbo the other is a SE and had the turbo ending in F.

The early ones pull harder than the 03 plate even though the 03 is remapped. Tried the same map on the early ones and there is no difference between the power delivery, i would say the early ones are a little faster off the line! Remember the AKE has a 2 plunger/11mm head but the best pump is to have a hybrid 3 plunger and 11mm head- that's what i have on the a6 and with the race nozzles i have enough fuel for over 400 Bhp, no doubts about it! 630Nm was with a worn engine and a few missing rocker arms, is close to 700Nm now. Need to map it properly and take it on a rolling road. I have a friend who owns a stock rs4 b5 and when i took it for a drive in mine it was very impressed! However the a6 is a big barge and i would not call it sporty, i am planning to pull the engine of it and swap it into my old b5 quattro, thing is i had a hybrid pump i lent to my mate when his one failed and he sold his car with my pump on it!

Idiot did not know it cost me £800 to have the pump built to my spec! The b5 had loads of suspension upgrades to cope with the power:big brakes, H&R antiroll bars, rs4 rear diff, forged axles, rs4 suspension and much more.Here's few pictures, it lays in my car park without an engine as i sold it to another forum member- was thinking to swap a 1.9Tdi engine on it! The 180 Bhp used the GT2052v turbo which IS the 2nd generation VNT turbo with narrow vanes on the vnt pack. It also have a slightly larger (2mm or so) compressor wheel. Also you need to check the nozzles, early a6 quattro had DSLA930 and later had DSLA1025, the 150Bhp had DSLA683 which are compatible with the PP683/race683 nozzles.

Turbo is checked. It's not 009 (end of Garrett number on the plate) or newer which have Gen 2 VNT. I don't know is that normal with early B6 models.

Are all B5 2,5TDI VP44 pumps without limitations? So is there a possibility that early B6s might be unlimited?

Audi A4 B6 2001 2002 2003 2004 2005 2006 factory repair manual Audi A4 B6 (Typ 8E; 8H, 2001 2002 2003 2004 2005 2006) repair manual download Audi A4 is launched in 4 generations up till now. First generation is known as B5 series whereas second generation is called B6 series. For users of A udi A4 B6 (Typ 8E8H; 2001–2006), it is good to know that company approved service manual is available for expensive vehicle in market.

Audi AG technicians are professional and interested to design repair manual by studying model year, body style engine transmission, and generation. For second generation V6 automobile, we have designed our factory instructions manual according to three body styles that are Cabriolet 2 door, Avant 5-door and saloon 4-door. For second generation 2001-2006 model year, turbo and diesel engines are offered.

Manual 5-speed and 6-speed are in list along with 5-speed and 6-speed automatic transmission. We crush competitors giving customers the factory repair manual in a legal manner. Respecting the copyright of the manufacturers, our repair manuals are taken directly from the manufacturer, so are the highest quality possible. Only we can offer these service manuals in pdf version. Only we can give the customer exactly manual written for his car.

Because we use customers car VIN number when we deliver these workshop manuals. Content in Audi A4 B6 manual pdf, Factory Service Manual. Description and repair of B6 second generation Audi A4 engines: -6-cylinder (TDI), AKE AYM BAU BCZ BDG BDH BFC -6-cylinder engine (3.0 ltr.

5V), ASN AVK BBJ BGN -4-cylinder engine (5-valve turbo), AVJ AMB BEX BFB BKB -4-cylinder TDI engine (1.9 ltr.; 2.0 ltr. 2-valve), AVB AVF AWX BKE BPW BRC BRB -4-cylinder engine (2-valve), ALZ -4-cylinder engine (2.0 ltr. 4-valve), AWA -8-cylinder engine (4.2 ltr. 5-valve), BBK BHF -6-cylinder engine, AMM BDV -4-cylinder TDI engine (2.0 ltr.

4-valve), BLB BNA BRE BRF BVF BRD BVA BVG -6-cylinder TDI engine (2.7 ltr.; 3.0 ltr. 4-valve common rail), ASB BKN BPP BSG -4-cylinder direct petrol injection engine (2.0 ltr.

4-valve turbo), BGB BPG BWE BUL BYK BPJ BWT -6-cylinder direct petrol injection engine (3.2 ltr. 4-valve), AUK BKH -8-cylinder direct petrol injection engine (4.2 ltr.

4-valve RS4), BNS -4-cylinder TDI engine, (2.0 ltr.