17. Water/Meth Injection - Ok so the new big thing on here is water/meth injection. Basically it allows for a water/meth mixture to be shot into the intake manifold to lower temps and allow for more timing (such as running a race file on pump gas). The DevilsOwn and SnowPerformance kits are great. It is AWESOME but the effects could be dangerous if correction factors get too high. Check out Timing 101 near the bottom if you have no idea what Im saying
18. VAG-COM - This could be one of the most important things you get for your B5 as you start to mod. VAG-COM is a software made by Ross-Tech (
www.ross-tech.com) that can Erase/Read CELs, Get rid of the seat belt chime, enable remote windows up/down, and most importantly, LOG! With VagCom you can log IATs, knock, CFs, RPMs, Engine Temp, blah blah... Here is the website to see more features B5 VAG-COM... Its about $220 from them for the full licensed verison or you can get an Ebay cable and get the lesser version for $20-100 for that cable
19. Suspension - Suspension is just as important as power. Being able to control your car is essential and coilovers or shock/spring combos allow for this... There is much controversy over which ones are the best. Stasis products are great. Their tracksports and motorsports are well known. The Bilstein PSS9s are also highly recommended. H&R is good quality. Vogtland and KW make fine products also. for the more frugal individuals the Eibach Pro-Kit coils, Koni Coils, and Stasis Streetsports get the job done! As for shocks and springs, Bilstein/H&R is most popular. also Koni shocks and eibach and neuspeed springs work well too. just put them together in the right combo.
20. Sway Bars - Neuspeed (29mm front, 19mm rear) are good. H-Sport's(35mm front, 22mm rear) are by far the best. either ones that you get, make sure you get the reinforcement bracket system. some that have run without them have cracked their subframe's.
21. Brakes - The simplest upgrade is an A8 312x25 rotor with Porsche caliper brackets(with special brackets from ecstuning or bira.org). If you do it right, you might not even need to bleed them. in the future. This fits with almost all wheels, even 16's. ECS tuning has some awesome Brake systems that you need to check out. also stainless steel lines are a cheap way to improve the braking feel. they don't expand like the OEM lines thus making the braking more firm and responsive.
21. ECU/Engine Codes - our car's generation is broken up into two different ECU's and three different Engines for the 1.8T.
1.8T AEB = 1997-1999
1.8T ATW = 2000
1.8T AWM = 2001
AEB is DBC(drive by cable) or a.k.a. nDBW(non drive by wire) meaning that there is an actual cable conected to the throttlebody. which is more easily tuned
ATW and AWM is DBW(drive by wire) means that the ECU, the computer, controls the throttlebody. harder to custom tune and can have a mind of its own sometimes..
AEB has the larger port head and 20 mm wrist pins.
"ATW is the bastard engine w/ the AEB bottom end and the small port AWM head" 94jedi.
The AWM has 19mm wrist pins, small port head and internal waterpump
22. TimingBelt - our engines are interference engines meaning that if the timing belt breaks, waterpump fails, or tensioners fail then the pistons slam into the valves bending them. and costing you big money to fix. audi suggest that the timing belt and such be replaced in 120k intervals. but experience has shown that that is false. they should be replaced in 60-70k intervals to be safe. some have gone longer but it's not worth the risk. the change is a strait forward process it just takes time due to the entire front end has to be removed. ECS Tuning and Purems sells the best kits for a worry free switch.. it's best to do all belts, rollers, tensioners, and waterppump at once since you already have the front end off. and this is also the best time to do a Snub mount that i mentioned earlier. takes 2 minutes to install during the TB process.
23. Headlights - there are two different sets of headlights for our cars. pre facelift's have two peice non projectors where as facelift's have one peice projector lights. 2000 and 2001 had HID's as a factory option. 4300k and you will know if you have them by looking at them while on. if not there is a ballast on the back of the headlight housing that has a lightningbolt on it. if you don't have HID's then no worries because they are a cheap and easy upgrade. provided you have projector housings. if you have 2 peicers then first upgrade to OEM projectors, Valeo Ecodes(the best), or even Depo Ecodes off of Ebay(but stay away from all other Ebay lights!). cqlight.ca is a popular place to get a good kit, link down below. also Ebay has some good kits provided you buy from a reputable seller.. OEM 4300k are supposed to have the most light output you can get. then there is the 6000-6500k which is the most pure white you can go. 8000-10000k are bluish and beyond that is purpleish. 3000k is a yellow and a poplular choice for foglights.
All bulb numbers can be found here
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LINKS
Performance Parts and Tuning:
Achtuning
Advancedmotorsport
APR
ATPturbo
AWE-Tuning.
Brembo Brakes
Dahlback Racing
Dieselgeek
ECS Tuning
Evoms
GIAC
Hoppenmotorsport
Kineticmotorsport
LLtek
Neuspeed
Oettinger
PES-Tuning
Purems
RENN-ART
STaSIS
Stratmosphere
Stoptech Brakes
Supremepowerparts
Ultrarev
OEM Parts:
http://www.germanpartsonline.com/
www.thepartsbin.com
www.autohausaz.com
www.4usedaudiparts.com
www.dadsauto.com
http://worldimpex.com/
http://www.car-part.com/
http://www.germanautodismantlers.com/
http://www.clairparts.com/
Misc:
1.8T Troubleshooting Guide-LOOK HERE IF YOUR CAR IS ACING UP.
B5 A4 External Differences
http://www.ross-tech.com/
VAG Tool Locator - Registry of individuals with Audi/VW VAG tools.
Bentley Fault codes
Decoding VAG fault codes
logging blocks with VAG-COM
cqlights.ca - great HID kits!
www.hid-lights.com
Acronyms-
Can all be found here