poolemac (sold)

Sad...

jimbents

listen don, yes the jap cars com with alot of hp but that hp is to the crank. The average jap car loses a good 50 hp from the crank to the wheels. yes your dads car has close to 300 hp to the crank. My old car was a 95 maxima and yes it felt fast and I made it faster. They only thing that I didn't like was that it broke down every 2-3months. I replaced the tranny two times, axles two times and number of other parts. I have the same car as you,when it was stock I beat 180hp tuned altima,210 hp intrepid. Believe me when you put that pes supercharger on. You will beat your dads acura by a couple of car lenghts and most of the japenese 300hp v6 if not all of them.

JWG

Unfortunately, Audi used computer-aided design to make the 30v a very trim, conservative, fuel efficient engine.
Audi's 12v engine has some "fat" on it due to borrowing from other engines and far less-sophisticated computer-aided design.
The single butterfly valve throttle body is way too small to flow 300 hp on a NA 2.8. Mance Etheredge, ported a dual butterfly 12v TB to flow about 700 cfm, IIRC.
Additionally, the passages from the air inlet to the TB are way too restrictive, but you could try to replace the restrictive plastic 30v MAF with a ported 12v MAF, replace the 30v's mesh air flow stabilizer with a velocity stack, and replace the 30v plenum with some silicone and custom-made parts.
Then you have a plastic intake manifold that you cannot port; at least, one can port a 12v intake manifold with weeks of grueling work. However, the two manifolds will not interchange.
Then, you cannot port the heads too much, because you got way to many valves in the way; however, 12v heads port for some very significant gains.
However, some headers will make you some major gains.
Exhaust has minimal gains in it, as Audi's 2.8 exhausts flow pretty well--high flow cats and a muffler will get you some high-end gains.
Of course to get over 250 hp, you will likely need a stand-alone aftermarket ECU, like a Haltec.
Then, you could lighten things on the accessory belt with an aluminum alternator pulley, lightened OEM power steering pulley, and a Spal electric fan to replace the viscous clutch fan pulley. (I would not touch a non-dampened aluminum crank pulley if you paid me.)
I assume that you could use some lightened lifters; perhaps gun drill the DOHC's on each side to reduce rotational mass?
Do not forget an adjustable fuel pressure regulator and higher flow injectors.
So, I bet that you could spend $7000 to make your normally aspirated 30v almost as fast as my normally aspirated 12v, but you will likely never touch Mance Etheredge's 12v when he brings his NA monster to life.
Remember, better flowing OEM heads do little when you have so many other big restrictions in the system.

Toaster29

my STOCK 5 speed A4. The tips have lower gearing and much higher drivetrain losses. They are much slower.

Toaster29

My mom has a TL type S which makes 260. The car pulls pretty hard for a big mom mobile and gets 30 mpg on the hwy at 80 mph (geared real low, 100 mph is 3k rpms in that car).