What can I do to increase power or gas mileage on a b6 A4 3.0 Quattro auto?

[Cxcardinal]

What can I do to increase power or gas mileage on a b6 A4 3.0 Quattro Auto? I'm not trying to race. I'm just looking for some improvement from stock. I bought it about a month ago with 90,000 miles. Only Code is transmission range sensor. He told me about $650 for that.


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[texasboy21]

Full exhaust and JHM tune.

[deyrag]

2.7 swap.

Just getting in first, you know someone was going to

[Cxcardinal]

Thank you. does the KnN air filter make a difference compared to Bosh


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[Cxcardinal]

I see a lot being done to 1.8t engines but nothing for 3.0s. I saw a tcm upgraded or the automatic but nothing increasing power.


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[Cxcardinal]

"For the automatic "


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[moyenecorniche]

Trade in for a Prius ?? lol. ( And make sure your life insurance is up to par ) lol

Seriously, gas is cheap. You can / should plan your unnecessary trips to be combined. We tend to spend most of our fuel in multiple short errand trips. Making a plan to have 1 day a week where you combine all your shopping and other errands into one will save you quite a bit of fuel at the end of the month. Be more efficient.

That being said I never buy a car based on MPG.. Its pointless since without Quattro I would not have been able to get to work many times in the winter. That loss in income far surpasses the negligible gains of MPG's. An Audi is far more capable of getting you home safely and in one piece in case of an accident than most of the small fuel efficient matchboxes out there.
There is a price to pay but I'll gladly pay more for fuel for the advantages that an Audi Quattro S4 or A4 provides... Or any Audi for that matter.
You are driving what is considered a luxury sedan. The new sticker price tag at the dealership does imply that fuel costs are not a concern.. Never mind that MPG and all that nonsense is advertised. Its irrelevant since the concern should be more about the design and quality of the car and its safety features..

[moyenecorniche]

BTW OP who is He ?
A certified VAG tech or the run of the mill OJT mechanic ? Always get a second or even third analysis. ( worth the saved $,$$$ in the long run )
You can increase performance with the 3.0 but if you are concerned about MPG than insuring that the car is all up to spec as far as service and maintenance will go a long way in that direction..
Its really not a platform that lends itself to a lot of performance upgrades unless you have big bucks. Since there isn't much available you would be experimenting and having to customize a lot of upgrades which then nullifies the frugal plan.

You may want to consider trading in for a 1.8T or 2.0T where you can upgrade the FI and exhaust tweak the ECU to a stage I or II and still get decent MPG which actually improve with just a stage I upgrade. Since the motor becomes more efficient under load..

[cschuster]

People with the 3.0 JHM tune have claimed 2-3mpg increases.

[Cxcardinal]

Wait.... I'm not worried about mpg. I was just giving possible outcomes of modifications. I know I have a awd v6. I was never expecting 35 MPG. Just looking for little tweets. If there are none, I'm cool with that. I love the car.


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[Cxcardinal]

I thought this would be the place to ask. Thank you for the speedy feedback.


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[DarkoNova]

Months before I got my A4 I started reading this forum daily and googling stuff.

The general consensus is that the 3.0 isn't worth modding. There aren't a lot of mods, and what is available doesn't really do much for power.

I thought about getting a 1.8t so I could have a plethora of mods available, but they didn't have as many features as a stock 3.0 does.

Plus, 4 cylinder exhaust, ew.

I'll take the 3.0 with no mods just because the exhaust note is infinitely better, lol.

[Cxcardinal]

It was taken care of and I didn't want to deal with a 14 year old 1.8t. I thought the 3.0 would be have less wear and be more reliable.


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[moyenecorniche]

I would add, following that photo. A set of lowering sport springs and shocks. A set of 18x8 wheels and tires. OEM wheels from Audi or Mercedes.

[S5Buzz]

i was also wondering were there any performance upgrades for the 3.0...

[john_gonzo]

i was also wondering were there any performance upgrades for the 3.0...

Well... there is this: My-A4-3-0-V6-6-speed-DYNO-amp-progress-thread

[Cxcardinal]

I haven't found any besides an exhaust


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[19jdog]

People with the 3.0 JHM tune have claimed 2-3mpg increases.

NOPE!!

I think I have almost every 3.0 mod and still get the same gas mileage. I could do the SAI delete and Zingo airbox mod, I'm saving for 2.7t.

I get 25 -26 mpg

[SJorge3442]

NOPE!!

I think I have almost every 3.0 mod and still get the same gas mileage. I could do the SAI delete and Zingo airbox mod, I'm saving for 2.7t.

I get 25 -26 mpg

Off topic, but how'd that head gasket job go?/I don't think i saw you post a follow up on it.

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[19jdog]

Off topic, but how'd that head gasket job go?/I don't think i saw you post a follow up on it.

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It went great, well wait. During the tear down, there are metal cooling pipes on the back of the cylinder heads. 2 5mm hex bolts. I stripped one of them so I had to use my sawsall to remove the pipe to remove the heads. I broke a stud on the bank 1 exhaust stud to the downpipe. Had to buy a exhaust manifold. Had to go the to the salvage yard to replace both items. That sunday I put her back together, filled her with fluid and started her up. She fired right up. I was so happy! Success, until I looked under the car. I had a coolant leak and it was coming from the back of the engine. First I thought it was the heater hoses. But it turned out to be the fricken metal coolant pipe that feeds the secondary water pump. The O ring!




I was so fucking pist, to fix it I had pull the intake, the cylinder head covers, timing belt, ect ect. All for a $3.00 o ring that was warped and old. I shoved the 2 pipes together and didn't think nothing of it. It didn't seal correctly. AGH!!!!!

LOL

I didn't get the heads checked. I took my straight edge and tried to push a 0.004 feeler gauge under it on both the heads and the block. Nada. Bentley says use a 0.010. I don't see how they could be warped since I didn't overheat the motor. I replaced the head gaskets and did the timing belt job and called it a day. So far so good been 2 weeks and my commute is 120 miles round trip. Hell my gas mpg went from 24 mpg to 26!


SUCCESS
IMO

[Cxcardinal]

Is that a Quattro? I only get 15-17 with Quattro. No highway though.


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