LS1speedy

iTrader: (3)

Ok It's all most been a year and 260-290ish rwhp doesn't cut the mustard any more for this 2002 ws6 A4. I want to go faster, but I have to work around my warranty.

How much power can these LS1 engines make? How much power is too much power before the engine starts breaking down?

I want to build my TA up to 400rwhp NA, really 450rwhp, and legally off of a $2500 parts and labor budget. To me any thing over $2500, I might as well put that money off to the side, wait until the engine gets old then get the ZL402 longblock(if street legal).

So my mod list was to get

>SLP lid & Black Wing filter 5hp-10hp
>SLP loudmouth 10hp-15hp
>Cam (how much do avg. installs run?) hopefully 35hp-55hp gain
>1.85 RRs (do I need them) 8hp-12hp
>ASP UD pulley 5hp-13hp (Is there anybody that had full bolt ons, then added the UD pulley? How much power was gained?)
>Maybe a ported TB( what are avg. gains) ??hp Probably not worth the money since I can't do the port work myself.

What is the best most powerful emissions friendly "Install, tune and go" cam that I can run with out needing to upgrade rods, valve springs and other components?

Will these upgrades get me to my goal are do I need a pair of Heads?

Ouch!!!! for 450rwhp I would have to be making 543hp at the flywheel that's why I need to stick to 400rwhp.

So any thoughts, advice, opinions, 2 cent, .02 cent, dolla, input, etc.

Replies will be much appreciated.

_JB_

iTrader: (33)

My friend with a huge cam, full exhaust, lid and ls6 intake made 370rwhp on a Mustang dyno. It probably would have made more but it spun a bearing and cracked the block. I don't think it would have went past 400rwhp though on that same dyno.

LS1speedy

iTrader: (3)

Well, I hope that didn't happen because it was making too much power.

sidewayz28

iTrader: (24)

lol no. i made 395rwhp with a cam and exhaust on a MD. now i got heads & a 90/90 set up and plan on spraying a 125+ shot on the stock shortblock.. just get a nice cam and torque converter and youll have a beast.
and your going to need new valve springs with a bigger cam then stock, and pushrods.. you wont see 400 rwhp with a stock cam, unless you go nitrous

Arctic2002ss

Yes, you can get there with a big cam and full exhaust. I think you will also need a stall converter to make a big cam more driveable. Over 500hp seems to be the point where we start breaking things.

DAn95

iTrader: (2)

throw full exhuast and intake a converter and gears. then decide if u need more power cause your car will really wake up from those mods. then if u want more grab a cam w/ install kit

00T\A

230'ish cam LT's, and all realted boltons +a good tune you will be in the 370-390 range

slammedchevy

iTrader: (13)

i spend 2 grand on parts + a tune and did 430 400

stock ls6 heads $400 to my door from patriot every thing but springs
gaskets and **** like that $300
228r cam $250 used
pushrods $100
longtubes $285
ory cut out $130
tune $350
stock intake ls6
stock pulleys
stock injectors

gyrene2003

will that cam work with my stock heads? If so, let me know i ya wanna sell er. I might be in he market soon for a mild cam.

KONG

iTrader: (4)

Hey Darren, you cant go wrong with a 224/224 cam. That with a 3200 stall in your car would be pretty nasty.

slammedchevy

iTrader: (13)

yes sir that will work with stock heads. i sold the motor already as a long block. sorry

01Z0H6

iTrader: (63)

Check my sig... Mine is an A4, full bolt on's,LS6 heads,LS6 intake,PPTB, Vig 3600 stall... G5X3 cam.. made 403rwhp with 405rwtq...

It is definately doable...

LS1speedy

iTrader: (3)

How much did all of that cost?

01Z0H6

iTrader: (63)

Don't ask.... It's depressing...
I lost count...

BlueSix

Since you have an A4 it'll be harder to make 400 at the wheels. And you won't get there with any resemblance of a warranty (what f body still has a warranty). I'd go with a 3600 stall converter, long tubes, lid, ported TB (even if you don't gain any hp the throttle response is worth it), and a tune. Once that doesn't cut the mustard you can go heads and cam.

LS1speedy

iTrader: (3)

Got 3 yr warranty up to 100k+ miles.

A cam is on my mod list, just got to make sure I match it with the right stall.
Unless there is Head/cam combo that avg 90-110rwhp in gains it is highly unlikely that I will spend $$$$ for any thing less.

LTs = leaks, emissions, reduce ground clearance so they are a no no.

The way I see it, is that I have to make an additional 157 flywheel HP on to of the stock rating to make around 380-410hp to the wheels.


And WTF is this lol

Optimus_Prime

iTrader: (4)

It's easy to do if you don't consider nitrous forced induction.

=Tac=

iTrader: (8)

Well your probly going to want to get LT's to let the car breath which will help in your goal. Also, not all LT setups leak and you can get a catted y-pipe if your worry about emissions.

SREETRACEGUY

iTrader: (13)

long tubes, y pipe, any good muffler, basic cam install kit and cam of course, fast 90/90 and a good tune and enjoy your 400HP car ........

2000badbird

iTrader: (5)

ms4 and a set of worked 5.3 heads that will put 400 to the wheels