2009 A4 Build

[yoshibishi]

My cousin just picked up a 2009 A4 2.0T with 160k miles for $3,500 USD.

The engine had jumped timing and bent the valves. Here are some pictures.









2009 Audi A4 2.0T Build List

Goal: 500 AWHP/500AWTQ reliable daily driver.


Stage 1 - Initial Repair and Basic Tune

• Cylinder head w/ valves, springs and cams and rockers from wrecked A4 with 30k - $1200
• Repair/Replace OEM Pistons?
• APR Stage 1 ECU - $600 (+70hp/+70tq)

Stage 2 - Upgraded AWD Conversion

• Audi S4 B8 Driveshaft - $800
• Audi S4 Rear Axles - $300
• Audi S4 Rear Differential - $800
• Audi A4 Rear Subframe + Misc Mounts/Brackets - $200
• Audi A4 Quattro Transmission - $700
• Transmission Torque Converter Upgrade - $250
• Audi A4 Quattro Fuel Tank - $250
• ARP Stage 2 Exhaust - $1600 (free Stage 2 ECU Upgrade)

Stage 3 - Brakes & Suspension

• Drilled & Slotted Front/Rear Rotors - $300
• HAWK HP Brake Pads - $200
• H&R Coilovers - $1400

Stage 4 - Engine Build

• Ferrea Competition Valves - $450
• Ferrea Valve Springs - $300
• Ferrea Spring Seat Locators - $100
• JE Forged Pistons - $600
• ARP Forged Connecting Rods - $300
• JE JG1004 3346 Piston Rings - $100
• Mahle Connecting Rod Bearings - $30

Stage 5 - Turbo Build

• Still Researching...but most likely a K04 turbo with custom turbine for smooth and reliable power.

Stage 1 Parts have been ordered and are trickling in.

Thanks to EuroTech RTP in Raleigh for letting us use their shop space.

[bluetori]

I see you are gonna go with H&R coil overs I would recommend Vogtlands as they are less known but have a lot less documented issues and better adjustment. Also how many miles were on this car?

[yoshibishi]

I see you are gonna go with H&R coil overs I would recommend Vogtlands as they are less known but have a lot less documented issues and better adjustment. Also how many miles were on this car?

Thanks for the tip on Vogtlands, will check it out.

The car had 160k miles.

[bluetori]

Thanks for the tip on Vogtlands, will check it out.

The car had 160k miles.

Damn I missed that was there a service history?

[poweredbyaudi7]

500awtq/500awhp on a k04?

[shaunm82]

500awtq/500awhp on a k04?

I thought the same thing.

OP, you are going to have to look to another turbo if you want those power levels.

Interested to follow the progress though! Shop is letting you use their space, but you guys are doing the work?

[Smellie]

500 wtq on stock tranny and most likely an older 6 AT..

500 awhp on a k04 variant

Engine internals all sound good but I don't see you making past 400 awhp without going with something along the lines of a gtx3071 / efr6758

[Project Quattro]

^ This. And I'd strongly urge a 6MT with a performance clutch if you're going to be putting down that much power. I doubt the 6AT can take it.

[Shaph]

500 wtq on stock tranny and most likely an older 6 AT..

500 awhp on a k04 variant

Engine internals all sound good but I don't see you making past 400 awhp without going with something along the lines of a gtx3071 / efr6758

dont think youd even hit 450ish with a 6758.

[Smellie]

dont think youd even hit 450ish with a 6758.

Maybe with meth and an agressive maestro tune

[kaz02a4]

Interested to see how this will turn out. Anyone try to push the limits of the 6AT? Or OP, will you have a 8AT in there instead?

[elscotto80]

I am interested in the upgraded driveline components. I thought the a and s drive lines were the same?

Sent from my XT1096 using Tapatalk

[Project Quattro]

I am interested in the upgraded driveline components. I thought the a and s drive lines were the same?

Sent from my XT1096 using Tapatalk

The Quattro system may be the same, but the S4 "automatic" is a dual clutch not a traditional automatic.

[Lambda13]

[*]Transmission Torque Converter Upgrade - $250

I'm interested in more information on this. Can you post/PM me details?

[zokissima]

Great thread, in!

I did not realize the driveline parts from the A4/S4 were different and interchangeable. So the A4 you got is a non-quattro model? Where are you sourcing the below parts, and do you need a rear subframe due to the Quattro conversion?

Stage 2 - Upgraded AWD Conversion
Audi S4 B8 Driveshaft - $800
Audi S4 Rear Axles - $300
Audi S4 Rear Differential - $800
Audi A4 Rear Subframe + Misc Mounts/Brackets - $200
Audi A4 Quattro Transmission - $700

[bermudakid]

Goal: 500 AWHP/500AWTQ reliable daily driver.

Stage 5 - Turbo Build
Still Researching...but most likely a K04 turbo with custom turbine for smooth and reliable power.

[1_naudi_a4]

i recently mis shifted a 09 a4 quattro. ended up spinning a rod bearing. going with je pistons integrated connecting rods acl calico coated race bearings for time being. limited budget but eventually gtx turbo, cts turbo is working on a gtx kit n should be out hopefully in 3 to 6 months at least thats what the rep was telling me

[Shaph]

Maybe with meth and an agressive maestro tune

Still doubt it. a 6758 maxs out at 490-500. im pretty sure we have more than 10% power loss