C Man

Since my motor let go... I'm back to the drawing board with respect to the new Cam for the car. However, I don't want the biggest, lumpiest most powerful cam... but one that will give me great power... but as quiet as possible. Is this even possible?

Here is what I have:
- strong 383 Shortblock.
- Older AFR 210 Heads and portmatched LT4 Intake (see specs below)
- Approx 12:1 Compression, running on 91 Octane (will usually have 94 but just in case)
- I also have a 200shot Wet Kit for the track with a standalone fule system to add race gas, however, I'm more interested in N/A power first... as that is how most of my driving is done.
- A4 with 3600 stall, 3.73 Gear, 3750lb Camaro

Since I want to drive the car more often, I don't want:
- a lumpy cam
- a "loud" cam
- **** poor idle quality (smell, rich idle, poor overlap)

Since the motor blowing up basically wasn't in my budget (is it ever?) I'm trying to figure out if there is a good Cam that can be had off the shelf that would be almost as good as a Custom Grind. If so... what would you guys think is the best for my application?

Here are the head specs:
- 58cc
- 2.02 Intake / 1.6 Exhaust valves
- 1.45 Spring (140/385 open)

Flow (with pipe)
Intake Exhaust
.400 197.45 144.33
.500 235.76 164.94
.550 252.26 174.46
.600 266.41 180.80
.650 279.38 183.98


Thanks for your help guys.... I'm trying to get my car up and running before the summer passes me by

xx_ED_xx

iTrader: (17)

Would you like some cake too?

C Man

If possible

I'm not looking for a stock quiet type cam... but if I can avoid all the idling issues... and the loud lumpyness of the big cams and have to loose a few HP... then I'm willing to do that.

JasonShort

iTrader: (242)

So you are asking if you can run a "smooth" cam and be able to run in the 10's on motor? Or, are you asking if you can run a small cam and still be able to run 10's with your current combo on spray?

It's not going to happen naturally aspirated on the heads you have now. As you have probably read many times, it's not the parts but rather the combination. You probably could run close to (or into) the 10's on motor with a medium size cam (read: not choppy), but you are going to need a perfectly matched heads/cam combo with high compression and all the proper supporting mods.

Now, if you want to stay in the 10s on your current nitrous setup with a smaller cam, then than could be done

Jason

SS RRR

iTrader: (2)

I recommend the LPE 211/219 cam for most anyone looking for a smooth idle. If you don't want to use it specifically then at least a profile similar with short duration/large lift numbers. As long as you were able to utilize the torque off the line a cam profile like this can give you that should get you into the 11's N/A and possibly 10's with a 200 shot. It's possible you would have to take some weight out, but maybe worth a shot...

krill

I dont know how the LPE 211/219 would act in a 383 but I have one in my 350 and it is really smooth. Smooth idle, just a little lope, you can barely tell there is a cam in there.. No surging or anything, you can cruise at idle rpm

SS RRR

iTrader: (2)

It's the cam LPE uses in their 383 LTx packages.

slomarao

iTrader: (6)

are you willing to step up the n2o? Direct port?

JasonShort

iTrader: (242)

Why would he need to "step up" his nitrous setup? If you can't run 10's on a 200 shot, you've got MAJOR setup problems.

If he is running 10.5 already, a small cam with no other changes to his current setup MAY only drop him to a 10.7-10.8 ET.

96capricemgr

iTrader: (1)

A friend managed 11.2 at 118mph blowing up the stock shortblock in his Impala with self ported heads and the Lingenfelter 211/219, 175 shot of nitrous. The car was a street racer with a spool and 3.73s but was a stock shortblock Impala lightened but not gutted.

I would probably go a little bigger on the cam, keep a 112LSA. This will keep it mellow, no need to go wider unless you spray a good bit more at it.

I think your goal is attainable though.

C Man

Sorry for the confusion... I'm defintely not interested in running 10's on the motor... just on the spray. It'd take too aggressive a combo for that... and on the street, I'm thinking 400rwhp, and a high 11 NA motor will be enough for me to have some fun. I drive the car more than I race it... and want to enjoy cruising around town as much as when I hit the track.

As for the track... I want to hit the nitrous and stay around that 10.5x's. I've run that already... and want to stay there with a stronger motor than I had before.

A little update from the shop looking at my former motor. Looks like I actually had a 377 motor (stock bore, 3.75 crank), stock rods and lunati pistons... and the compression was around a 10:1. The cam was on a 110LSA and was similar to a cc306. I still can't believe the times I got... and that the motor lasted 4 years. So I know I can keep those times with more compression, more cubic inch... and a decent cam.

JasonShort

iTrader: (242)

That is a piece of cake to stay in the 10's on your current setup on the spray with just a smaller cam. Raise that compression up on your new motor to at least 11:1. I think that your combo with the "right" smaller cam will continue to yield you mid 10's on spray.

Jason

skinnies

iTrader: (33)

You shouldn't have a problem running 10's with a small cam, lots of options out there also.

spray

Call Jay allen and beg for a freebie!! Try yellowbullit.com message board for better tech. on this issue.