Bill'sWS6

iTrader: (6)

Like the title says I am looking to get a little more power out of my car.

The car is a 01 A4 Z28 that has 400RWHP/379RWTQ. I have Absolute Speed heads 10:8:1, TR 224/224 563 on a 114 cam, Fast 78mm intake and throttle body, 2800 Stall with 2.5str.

The car runs 12.1-12.2s but I am looking for mid 11s. I was thinking of bumping my cam up to a 580+ lift cam on a 112. I figure that would have to be good for soem additioanl PWR. I was looking at a STS turbo but it is $5,800 with a tune, Meth injection, injectors and a fuel ssytem upgrade.

I really don't want to do NOS.

Just wondering what peoples thoughts are for this? I may still end up with the STS Turbo kit if that is what it will take. I just hate to have thta much cash tied up if at all possible. I am also going to bump my converter to a 3800 stall.

Thanks for your input.

Bill

98Z28MASS

iTrader: (6)

I say get a bigger cam and stall and you will see mid 11's. Same maybe something in the mid 230's/230's and you should certainly see big diff in your numbers and the stall should def make good use of the power. The STS kit isnt bad but its gonna cost you a lot more going turbo than just the cost of the kit. Turboing a car is so expensive, I would say just go bigger cam IMO.

NemeSS

iTrader: (127)

ever think of going with 6.0L?
corvettetimmy put down 492rwhp with lt1dave 23x cam and stock bottom end
alittle more weight,but it is a few more cubes and better breathing
bore
slap on ur heads and a 230-240 ish .585-600 lift
problem solved
look 4 corvettetimmy post in dyno section of the forum
i think its 492 sae rwhp thread if im not mistaken
hope this helps

orangeapeel

iTrader: (18)

It will be in your converter and sticky tires.

8GTOKLR

iTrader: (6)

Get tuned, you should be way over 400rwhp with all those mods and cam setup you should be at min 420 on 93 Octane, drag radials might help, make sure your car is tuned.

Ryan02SS

iTrader: (3)

If I was in your shoes I would opt for a little higher stall 3500-3800rpms with stickier tires. Easy mid 11's with your power level. That way you don't have to tear into the motor again or add a $6,000 dollar turbo kit to meet your goal. I've seen high 11's out of a bolt on 355rwhp Auto with MT DR's @ 4000 stall. Your power level is more than capable of your goal. 400rwhp is more than respectable with a HC 224 setup thru an A4.

TTU98SS

iTrader: (5)

4k stall, get a bigger cam check out the LG motorsports g5x3/x4 cams or an MS3 maybe a TREX.

technical

Am I the only one who thinks 400rwhp is substantially high for a H/C TR224 **auto**?

98Z28MASS

iTrader: (6)

He said he has the heads milled though to up the compression so that might be where the additional power is coming from, JMO though.

Bill'sWS6

iTrader: (6)

A 224/224/563 on a 114 to be exact. That is why I was wondering if bumping to a 580 + on a 112 would boost both my HP and TQ number a bit?

The car ran a best of 12.1 @ 112mph with a 1.75 60'.

By the way, the car is running 275/40/17 Nitto Drags.

Thanks,

Bill

technical

If you are going to put in a new cam you should think about a 231/237 type cam. With your stall and gears that power would be very uesable.

Just for reference: I have the TR224 on a 112 with PP stage II's, dynatech LT's that put down 395rwhp and 370rwtq through a M6 and 10 bolt. I don't have the FAST or pulley, but notice the similar setup yet you make more through an A4. Yet your ET and trap seem low for the power level.

TXZ28LS1

iTrader: (5)

an auto putting down 400rwhp is friggin impressive with a little cam.. but i would say bump up that stall and you should be at 11's...maybe like a 32-3600 stall..

98Z28MASS

iTrader: (6)

Again I vote for bigger cam and stall. No need to go with something huge like a TREX or MS3, but you could easily run a 228/228, 230/232 (similar to an FM13), or something in the low to mid 230's intake and duration and with a good tune it will have great street manners. You would probably see around 425 rwhp and with the larger stall i think you would easily make it into mid 11's. As someone else said the stall alone will get you into the 11's, but a bigger cam would probably get you mid to low 11's IMO.

Cam02ss

iTrader: (8)

another vote for a bigger cam and stall. i currently have a TR 230/236 590/598 112 with my heads and my car is currently having a larger cam put in

98Z28MASS

iTrader: (6)

yea only thing hes gonna have to watch out for is piston to valve clearance with the mild heads but I think if he keeps the lift under .600 it should be safe, but dont quote me ont hat though as im not 100% positive.

Ru2n00n3er

iTrader: (13)

I know Bill, and for the people suggesting X3/4's or TREX, trust me he doesn't want THAT big. I'd say upgrade the cam a bit, maybe around the size of my F13, which is a great cam for a daily, and the addition of a 90/90 setup. Do those along with possibly a stall and I'd think you'd be mid 11's.

I also just noticed that you're running mid-length headers with cats. You could switch those out to a long-tube setup with high flow cats in addition to the above.

I'll be back up at work in mid May if you want a ride in my car to see what the cam acts like, or if you want help installing parts.

98Z28MASS

iTrader: (6)

Exactly, plus with a trex, gx-3, or ms3 would probably require him to flycut his pistons with his milled heads. I was gonna go FM-13 but I liked the custom 232/238 that dez racing had ground for me. Also, the 90/90 would be a sweet along with some LT's, but the mac mids arent that bad.

99blancoSS

iTrader: (115)

Its all in the tune. I have TSP/PRC stage 2.5 heads a tr224 112 lsa and my numbers are in my sig. ls6 intake ported tb stock ,10 bolt 373 gears, 30# injectors, racetronix.

98Z28MASS

iTrader: (6)

Damn those are some real nice numbers 99blanco!

99ssleeper

iTrader: (98)

bigger stall definately.

i had similar mods with a 3500 stall and untuned it went 12.0s...full weight on nitto drag radials.

if you stay n/a, step up to a 3800 and that sucker will fly. i'd say mid-low 11s.