My car is goin' into the garage this week for the installation of bolt-ons + CAM.. It's a 2005 A4 Z51 C6 Coupe (LS2, 4L65e transmission).. Dynoed 330/343 stock with Borla Cat-back..

My mods are: -

Halltech Stinger + Induction Option
LGM LongTube 1¾ headers (Off-Road) & 3" X-Pipe
G5X3 @ 114LSA <-- Had to upgrade springs & valvetrain components with this, hardenned pushrods, etc..
SLP 25% U/D Pulley
LPE 160° Stat
Vigilante 3500 Stall Converter
Borla Stinger Cat-back
Trans-Go Shift kit
B&M 24,000 TransCooler

I'll be tunning the car using HP-Tuners

What kind of numbers should I be expecting in terms of hp and torque..? What sorta times should I be running in the 1/4 mile and how much should I be trapping (drag radials!? Slicks!?)

I would be pleased with 430/415 out of these mods.. Are my expectations too high/low..!?! If I don't reach this I'd probably slap on a fast90 and a set of proven afr or etp heads and pass my expectations by about 20hp and 20ft.lb..

Running the stock z51 3.15 gears.. Contemplating 3.73's .. Won't go higher than that with an A4... Anyone think the 3.42's could serve me better..!?!?

Any thoughts!? ideas!? I don't wanna end up doing this more than one..!

Comments & suggestions are most welcome!

 

You're probably not going to dyno at what you want with an automatic and a stall, but who cares? Automatics aren't dyno queens, and track times are what matter. Either way, the dyno section is where you would get the best input.

 

I'll definately lock the stall when taking the car to the dyno.. To be honest I care more about ET that I do about HP...

But still..! Who doesn't want more hp.. !?

 

Good question for our Dyno section.

 

I don't see 430 at the wheels. Thats what m6 guys are doing over at the corvette forums. With that 3500 stall I sure wouldn't count on it. With the stall locked up I say 403hp 385tq.

 

I'll guess 413 rwhp

 

Pay somebody to tune it for ya if you've never tuned a car.

Nate

 

i think this guy hit the #'s on the head.


A4 + 3.73's + 3500 stall from what i have seen around here are a lethal combo. putting the power to the ground is the key. when you can hook and go. i have seen many lower HP cars out run High Hp cars because of the hook and go factor.

TFS 225 heads, PORTED fast 90 and port your LS2 90 you should hit 460+ with no problems at all. IMO a fast 90 and most tb's out of the box just arent worth it unless you port them.

IMO my shaner ported LS2 90 is freaking awesome, even better since he tuned my car as well.

 

In your case A4 , stall & 3.73's i'd say 400-405rwhp & 375-380rwtq

Keep us posted & good luck .

peace

 

411/389 is my guess