Mattsz28

iTrader: (1)

I know everyone hates a "what if I" thread, but I geuss I will ask you to deal with it

I have aquired a 383 shortblock details as follows

Speed pro pistons, Hyper eutectic
speed pro ring and seal kit
speed pro gasket set
clevite 77 bearings
Scat forged rods
scat forged crank
ported heads
ported intake manifold
8 new intake valves, cut exhaust valves
3-angle grind on seats
comp cams double spring valve train with comp pro-magnum 1.6 rockers
ARP engine bolt kit

Its running a cc306 cam.

Its going into an a4 car with a "built" tranny and a 3k yank (probably). What kind of numbers do you think I should get out of it. I dont plan on spraying it, but I would LOVE to be in the 11.5 range. The motor is out of the car right now, so if I was going to spray it, I suppose I would switch to a set of forged pistons (maybe some mahle's, can get them on the cheap). I just wanted some opinions on if you guys think a setup like that is capable of pushing into the 11.5 range without squeeze. Also, its a full weight car, running nitto dr's on zr1's as it sits now, but I expect it get some MT's. Its also a 3.42's gear in the car.

Thanks for the input in advance

O Holy P

iTrader: (9)

3.73's and maybe a little weight reduction. With some good weather, and the proper suspension and a good launch. I think you could see an 11.5 with that set up.

fast

iTrader: (24)

11.5s are do-able
even with 3.42s (although 3.73s would be worth it)

what headers/exhaust?
consider some light rims (skinnies/drags)
drop all the weight you can
and get it tuned (of course)
suspension (say that one 3 times)

good luck bro

-PEPE-

iTrader: (10)

That is a baby cam for a stroker, that would be the first place I'd start tinkering.

edit: now that I've read more of your post I agree with Inifinitebird, the combo doesn't really make sense. I'd suggest talking to a good engine builder and getting some advice, you'll get good info on here but it's going to be bits and pieces of opinionated options Vs. a build that is synchronized for your goals.

infinitebird

iTrader: (11)

That seems like an odd setup, why would someone do a forged crank and hyper pistons?

As far as what you would run, depends on what kind of heads you have (don't think you mentioned this), and other things like exhaust, tuning, etc.

The 306 would make some power but it's far from the optimal cam for a 383. If you're going to change out the pistons, might as well swap a larger custom cam in there that will do more with a 383.

Mattsz28

iTrader: (1)

There ported stock heads. I will be running a full exhaust, long tube headers, 3inch magnaflow catback job. I have a pcm tuned for the 383, but I will def be looking into a dyno tune. The hyper pistons were cheaper, was running outta cash at the time it came for the slugs. Whats a more optimal off the shelf cam for the set up. Keep in mind, this is still going to see alot of street duty, and may be a "daily driverish" car during the summer time.

Thanks Again.

LT1Formula007

iTrader: (66)

My .02 says Splay the mains if not already and align bore it, and then throw some forged pistons in there.
But the setup you have mentioned should get you there without any problems, even with the 3.42's But 3.73's will help. Just get it to hook up well.

infinitebird

iTrader: (11)

If it has to be an off the shelf cam you might check into the comp xe 236/242. That would work good for a stoker I think.

Mattsz28

iTrader: (1)

Already splayed and bored (hence the shitty pistons, more cost than I thought). The real question I geuss is, am I going to run spray at this car. I dont think I will, I think I want to go the all motor route for 1 time (ive sprayed the other cars/motors Ive owned). So you guys think an 11.5 with the current cam and head set is an option if I can get this bitch to hook?

EDIT: Is the 306 cam really that small? I know its a pretty large cam in a 350, figured it would be "about right" for a 383. Ive also heard some decent (410-420 whp) results with a cc306 cam in a 383 with similiar headwork.

infinitebird

iTrader: (11)

It's not that its that small, its just that the newer designed cams make more power (compare some dyno sheets with the XE cams vs 306 for example) and they are also more driveable, so you can go larger without sacrificing as much. The 306 would work ok though.

ABA383

iTrader: (1)

Don't put too much faith in dyno numbers especially with A4s...I only dyno 375 rwhp with a weenie cam in my 383, but my trap speed may tell a different story...My advice would be to look at cams in the 22X/230X range with lifts around .570"...They make terrific street/strip cams with no drivability issues and tons of fun without having to spin the motor to the moon to do it...Also don't be afraid of 3.73s or 4.10s depending on 26" or 28" tires and converters around 3600...I'm also a big fan of 4.10s and a 28" tire with A4s N/A and I drive mine everywhere...

I just upped my Vig from 3600 to 4000 and am trying to get my suspension tweaked a bit more to try to get a 10.99 pass out of my weenie cammed junk...Good luck with your set up...

--Alan

LT1Formula007

iTrader: (66)

ABA383, You have a good point. I think too often people mix up "The BIGGER THE CAM, THE MORE POWER" Although theoretically true, If you don't have the supporting mods for a huge cam your just killing yourself in the long run. I've seen smaller cammed cars walk cars with huge cams all day. It's all in the setup. Nice car and times BTW man!
James

ABA383

iTrader: (1)

Thanks! I'm still sorting out the suspension and have a few more tweaks to do, but I'm trying my damndest to get this thing into the 10s n/a at 3600 lbs with this weenie cam...Its going to be in the 60'...I think if I can get it into the 1.4s I may get it...

--Alan

LT1Formula007

iTrader: (66)

I think 10's are in your future...Especially with the times you are running now. Good Luck man....James