Ok my 383 is getting build and should be ready to put in my car in about a month. I was wodering how much RWHP/RWTQ you think i would be able to get and possibly 1/4 times? Here is what i got going on:

Eagle forged 383 Rotating kit. 11.3:1 CR
Stage 3 CNC ported heads (http://www.lonniesperformance.com/cnc.htm)
2.02/1.60 valves, Flow 279/193
CCA-07-468-8 camshaft with 1.6 RR
Ported intake with 58mm TB, CAI, Granatelli MAF
42#svo injectors
Pacesetter LT w/ 3" ORY
4.10 gears (have M6 tranny)
MadZ28 tune

I think i might be missing a few things, but what numbers would you think i would be able to get? Anything you guys think i might be missing out? I would love to have AT LEAST 425 RWHP. what 1/4 mile times do you also think i should be able to get?

 

425 RWHP sound feasable. Could you go into more detail on the camshaft specs. And I know all you guys with M6s get tired of hearing this but, are you saving up for a real rearend? What kind of exhaust do you have? Catback, duals, cutout?

 

the cams specs are:
.242 int. /.248 exh. @ .050
.292 int. /300 exh. advertised duration
.584 int./.579 exh. lift w/ 1.5RR (going with 1.6RR)
113 LSA
2200-6200 RPM range

As far as exhaust i have the LT's with the 3" y-pipe and dumped in the center.
Yeah i will be working on the rear end. I would like to get the Moser 12 bolt

 

with a cutout and the 10 bolt you may hit 425 rwhp/tq. After the 12 bolt goes in it will be iffy.
The mail order tune will be another big factor.
Have you considered a custom camshaft?

 

yeah i was thinking about a custom cam but i already ordered that one camshaft. I have all the parts already and the motor is currently getting built. I was just curious what HP i would be able to get with the mods mentioned above, i think it would be too late to change anything right now

 

Depending on tune you should get near 400, going over prob wont happen with a mail order tune, get it dyno tuned if you can or at least a wide band o2 reading so it can be adjusted.

You will losed 12-14 hp from 10 bolt to a 12 bolt. It looks like a big cam but the 113 LSA softens the overlap of the cam

 

getting the car to hook and 60-foot well are going to be your biggest challenges. at 425rwhp, the car has the potential to be a solid 11-second ride.

good luck with it

 

what exactly is the wide band o2 reading? Is that the air/fuel guage so you can adjust correctly?

 

I got 421 RWHP on a smaller cam and I have a lot of trouble putting it on the ground

230/236 .544/.555 lift 112 LSA

 

105 hp at 8000 rpm.

 

Personally, MadZ28 does great tunes but if you ask him yourself and even I agree, that for a stroker setup you should have the car personally dynotuned that is if there are any shops near by, you will still see a gain but a dynotune can squeeze out the extra horsepower plus you will see the A/F Ratio.

 

yeah i dont think i will do the mail order tune. There is a dyno shop about 30 minutes away so i will have them tune it. My buddies take they cars there and they do great work.
So when i take it in to get dyno tuned do i need anything, or are they gonna plug everything in and use my existing PCM and tune it off of their laptop? Because if they do that they can read the A/F ratio right?
Streetwarrior96, what kind of setup do you have? do you have any drive-ability problems?

 

Mike96z, do you have any numbers or track times with your car? It seems like i almost have the same setup along with the same cam