Z4CSS

I am building a mild emissions legal 383 setup for my 97 Camaro SS and I am wondering what type of power I should expect to see. My goal is to have an impressive car at the track to beat my buddy's with and a relatively easy car to drive in city traffic.

One of my buddy's has a full bolt on A4 LS1 with a 3500 stall and the other guy with the A4 LS1 has a mild cam and the usual bolt-ons and one guy has a stock 2004 SVT Cobra and I want to be able to beat them.

Here is a list of the parts that will be making up my combination. I realize the cam is small for a 383 and that I only have short tube headers but I have to pass emissions. Feedback is appreciated.

3.75" Eagle Cast Crankshaft
6.0" I beam connecting rods
SRP -16.0cc forged pistons
LE2 cylinder heads - flow @ .500 is 266/181
XE503 camshaft - dur @ .050 224/230, lift .503/.510, 112lsa
Stock LT1 intake manifold port matched to heads
52mm throttle body
30# Ford SVO Injectors
GM Extreme Duty Timing Set
SLP short tube headers
Random Technologies High Flow dual cat y-pipe
SLP 2OTL catback
Factory Camaro SS hood scoop with factory cold air ducting
4.10 gears with torsen differential
SLP clutch
Hurst Shifter
Nitto 555R's (315's on the back and 275's on the front)
LT4 km
1LE intake elbow
1LE aluminum driveshaft
Boxed lower control arms with relocation brackets
Boxed panhard bar
Edelbrock Torque Arm

Engine compression should be around 11:1 and the car will also be dyno tuned.

Z4CSS

anybody? TTT

BizZzatch350

iTrader: (33)

They have long tubes with emisions fittings, just no carb numbers, those shorties will kill power

Z4CSS

Any guesses? I am also wondering if 1.6 roller rockers are going to have a huge impact on performance - I only plan to rev the motor to 6000rpms. I am debating to use them or not as I don' t like the ticking noise.

Can anybody tell me if a set of aluminum valve covers would mask some of the noise of the rockers?

METALBEAST

iTrader: (1)

I am running some Comp Cam Pro Magnum 1.6/1 RR on my 1992 Vette. The are not that noisy.

Violat0rX

iTrader: (2)

That's almost the exact setup i'm currently running in my car, even the cam (224/230 on 112 LSA, .503/.510 lift) Except I have the 1.6 RR, a stage 3 clutch with light weight fly wheel, stock ported TB, and stock ported heads. I'm not sure what pistons i'm running, but my compression ratio is around 10.5:1, basically the stock compression. When it was done and dynoed it put down about 362rwhp and 370 something rwtq. A little less than I had hoped for, but the cam isn't all that big and i'm still running the stock heads. You will probably be closer to 380-400, maybe with the LE2 heads. I've also got all the fuel upgrades and exhaust stuff. I have only been to the track with this setup once...and it was my first time ever at the track so those numbers are irrelevant to what the car can actually do with an experienced driver.

Z4CSS

Nice to hear someone else has put a cc503 in a 383 - I was beginning to think I might be the only one. Most people say the cam is very small for a 383 but streetability and emissions are a big deal for me.

How does the car idle and have you had to go through an emissions test yet?
Is your car an automatic or a 6speed as that should make a difference on the dyno.

BTW what rpm does your combination make power to - I am thinking with this cam that power will probably drop off around 5800-6000rpms.

Thanks for the feedback.

BlackScreaminMachine

iTrader: (17)

I have a 383 with a hotcam, ported LT1 castings on stock heads. I do have LT headers but the place I go to are not too particular on CAT placement. I run full emissions with exception of the CAT 99% of the time, until when I have to go for testing. I do go on a emissions roller.... I just went yesterday to dyno, my numbers are based on these mods....

http://www.fbody.com/timeslips/member.cgi?id=560

Basically a 383, through a auto with a 2500 stall, 3" steel DS, and a moser 12 bolt and 3.42 gears.

I did 355 rwhp at 6000 rpms. My TQ number is not a true number since I pull from lik 4,500 rpms But it was decent. here is the vid

http://www.mainstreamtopics.com/~scr...whp%20dyno.WMV (right click save as)

pigpen

iTrader: (1)

Since you'll be using Lloyd's heads, I suggest you call him for a cam recommendation. With a 383 and decent programming you can get away with more cam than a 350, and still pass emissions.

Mine passed with a much larger cam.

95 N2OT/A

iTrader: (37)

That edelbrock torque arm is crap!!!!!!!!
I put one on my mostly stock 95 trans am and twisted it into the driveshaft.

BlackScreaminMachine

iTrader: (17)

LLoyd uses Bret Bauer for camshaft grinds.

I just bought a cam with specs that work awesome for making power and will pass emissions. here is his email, ask him what he could do for you....

bret@bauer-racing.com

I cannot give out his specs on my motor, but email him and he will give you the low down on whats you need to do

Violat0rX

iTrader: (2)

My valve train is mad noisy! It gets kind of annoying but most of the time my exhaust drowns it out. My car's idle is pretty nice...it's lopey but not bad at all. It just sounds very aggressive. I had ECS build it as a daily driver so it wasn't that extreme. Now that I actually have another car as a DD, i kinda wish i went a little further with it...like upping the CR to 11:1. As for emissions testing, I don't think i would pass. It smells like gasoline sometimes (the shop did dyno and street tune my computer, but i think it maybe running rich) but I also have the LT headers w/cats - but I still probably will not pass. I just had it inspected in July at a local gas station and they hardly did anything. Just looked at a few things took it down the street and back and gave me a sticker.

My car is a 6spd with the stage 3 clutch and flywheel. It's got a good tq and power curve. I don't have the dyno sheet with me, but next time I go home I'll dig it up and scan it. It starts making tq around 2000-2500 RPMs, it shoots staight up and plateaus around 370 something until maybe around 6000 rpms? And it think the power does drop off around then too.