Unless there's a difference in cams that would necessitate tuning differences for the injector duty cycle, and as long as your 30v is also a dbw car (ATQ engine), I don't know why it wouldn't work, provided your hardware (such as injector size and fuel rail) matches the spec for the S4 tune. That's a better question for 034 or at least for a tuner like Mike Hood. I don't know what other differences there are between A4 and S4 engines but they would know.

 

he posted the dyno results on f-book



pretty good.

 

410HP at 16lbs? I'd say freaking awesome!

Heck, if I could get 300ish out of 8lbs I'd be ecstatic.

Edit: Oh yeah and that's on 91!

 

That's close to stage 3 output so it's likely got nearly as much money invested as a stage 3 car. Either setup requires an engine pull and all the supporting mods, so what's more expensive, this setup or a pair of K04 turbos to complete a conventional stage 3 build? The only real advantage I see on this (at least at low boost as noted in the graph) is that upgrading the turbo in the future doesn't require an engine pull.

 

Check the chart - that's an S4, not an A4.

 

300 out of an a4 with a single turbo? i doubt it. your talking wheels right. 300 wheels ii doubt the engine could hand that for starters.i think this is a cool idea for the 2.7tt as jeremy said, no engine pulls. but for the 2.8 still no beans. it amy fit but its just not worth it.

 

Max - "I'm a firm believer that the AHA/ATQ can hold 350-400whp no problem with conservative tuning, a big intercooler, and some meth to be extra safe."

I guess we'll see..

It isn't worth it? That's for you to decide. I think it would be. How many single turbo 2.8 a4's do you know of?

Yep, I'm well aware, thanks.

I've been following this since Max started the thread on AZ.

 

Its a built motor with 2.8L heads though I believe.

Thats correct Jeremy. The advantage of this is not having to pull the engine for replacing the turbo. I think he's saying that this setup would be cheaper or relatively close to the same price as a stage 3 setup without pulling the engine for turbo replacement. Stage 3 S4's do run on stock internals correct?

 

A single turbo a4 v6 would be pretty sweet. Once they start getting it out there and getting results we will see what the engine can and can't handle. The only downside is cost, as Jeremy said before you still have to source some s4 bits for it all to work correct?

 

Yes, it would still require some homework for others to do this. I think the market they are aiming at are people who had always had the itch for a Stage 3 S4. Almost anyone who bought a B5 S4 ended up getting infected with the stage 3 bug until people started realizing that 2 ticking time bombs were becoming a nuissance.

Stage 3 were great as DD, if the turbos didnt blow. This is stage 3 territory and you could swap out the turbo in half the time. I think it being a bigger turbo also made it less prone to blowing up.

So as far as S4 owners, this is a viable option for them. For the 2.8ers, Im interested but still somewhat skeptical. Im sure this guy knows what he's doing. He has a 2.0L B5 A4 as his track car.

I still hate myself for not having a manual.. They were so hard to find at the time I bought my car