Just a few simple questions that I've been wondering about.

With a 2000 Quattro A4 1.8T what is the stock PSI? And what is the stock turbo model/name.

Second is about an intake. Does anyone have any pictures on a custom intake they have made? Like a filter right off the manifold or something similar. Basically an airbox delete to give you more of the whoosh sound. What size filter is recommended?

Last is about the DV. Does replacing the stock DV in a stock A4 do anything? Sound? Performance? More boost?

Thanks for helping the new guy out.

 

Your 2000 ATW will put out 7-8psi stock. The 2001 AWM had the boost upped to 11psi. Chipping either car will bring it up to 18-20psi.

You have a K03 turbo.

A filter right off the manifold would eliminate the entire turbo and intercooler system, you don't want to do that. You can remove the air box and attach a filter to the end of the MAF, while you may hear the intake more, you will be sucking in more hot air than you would with the stock air box.

The DV needs to be replaced if you chip the car, otherwise you won't see any performance difference unless the one you have now is busted. You may hear a piston style DV more than the stock one.

 

Great! Thank you, all the info I was looking for!

 

The stock engine can handle the jump in PSI?

 

Absolutely. Once you start crossing ~330ftlb of torque the rods should be replaced with forged units, they are the weak point in the block.

You do want to make sure all your maintenance is done before upping the boost, it will exacerbate any boost leaks, etc.

 

Oh yes I know. I won't be getting a chip for a little while yet. The car is new to me so I want to make sure the engine is strong and good for at least a couple months.

 

Do most just replace the stock air filter with a K&N one?

 

You basically have 3 options. Keep the stock air box and use a K&N filter. People will warn you about destroying the MAF from oiled filters, just do not add more oil to the pre-oiled filter and it will be fine. IMO, that concern is overblown.

You can buy a Carbonio intake. It replaces the stock air box with a metal box/heat shield and a carbon fiber top cover that ties into the stock air inlet on the carrier support. This is the best option IMO. It looks the best, it integrates a metal heat shield that can be supplemented with additional insulation, and it utilizes the stock "ram" air intake. The only downside is the price, I picked up mine used for $125.

You can remove the air box and run a cone filter off the MAF, this is the cheap-**** "I want a cold air intake hur dur" route. If your goal is to reduce intake air temperatures, this is the worst option. Half the people who go this route do not put a new heat shield in place and are sucking hot air right off the turbo. You can build your own heat shield based off the "Blinktek" design to make this option marginally better.

The MAF is also supposed to have a section of straight pipe to "normalize" the airflow, although I do not have that with the Carbonio intake either and have not had any problems.

 

Stock air setup seems pretty good to me than! I'd rather put that money towards my catback that is going to be $350-$400 from the custom shop. I'll probably pop in a K&N at some point. Any turbo noise increase or anything like that with the filter change?

 

You won't hear any difference by just switching to a K&N. Do a search for swiss cheese air box mod.