Does anyone else think the misspelling of my name is an antagonistic shot or is it just me.... for being 37 you sure are petty.

Valve float..... can you please go do a search and find those posts of accusations of valve float with my stuff? PRETTY PLEASE, since you are Mr I Want PROOF. Cause I do. Only case I know of was a a instance with valvesprings installed at the incorrect installed height and once that was fixed he picked up 4mph in the 1/4 that you wanted to question as well. Hmm you trolling for instances to screw with me or anything i've done, what a suprise.

On the setup Karl did:

1. I didn't setup the springs nor know where they are set. Easily there could be .030" less installed height or more that can cause that issue. There is a spec and it's either in that range or not.

2. That cam is designed to run to 6200rpm, and guess what it does. There is a emissions cam that runs higher RPM than that. Lloyd ordered that cam from me so he talked with the customer and requested that specific cam from me.

3. Valve Float on hyd roller motors results in a horrible loss of power, not a jagged HP output as RPM increases like is shown. Could very well be a opti issue.

4. Considering it has heavier Crane/GMPP rockers, Ferrea 11/32 steel valves and steel retainers it actually does quite well. The cam/valvetrain are always designed for Pro Mags and that is always what is recomended, but not always run.

5. There is obviously no smoothing on there. Any raw dyno data on street/sportsman motors running hyd cams jumps around a bunch past 6000rpm, anyone who has EXPERIENCE with dynos would know this. Hell understanding spintron data would tell you the same things.... motors will have some valve bounce at the upper RPM limit that the system was designed for and at one point crash. It looks like that COULD be happening past the designed RPM (6200rpm) and works without crash till 600rpm past that point. That's doing the job it was designed to do.

Bret

 

thread hijacked!

 

I don't think the LE2 will pass CA emmissions. I barely passed with a
baby cam (Crane 104227). Here is the post with my results:

http://web.camaross.com/forums/showthread.php?t=416331

 

to answer thge original question . . . .

LE2 cam would NOT pass emissions.

LE1 would most likely not pass emissions either.

The cam used in the above thread was an EMISSIONS cam that has LESS duration and a WIDER LSA than the CC 503 cam. I really feel the cam would NOT be the problem if it did not pass emissions.

Springs were set up at 1.760-1.770 and have 140 lbs on seat. That will control the valves on these lobes way past 6200 RPM. Not sure what is going on with the graph up top but valve float usually looks a lil different up there.

 

My vote goes for the LPE 211 heads/cam package. Guaranteed to pass emissions. On a 383 it'll make extremely good power.

 

im still deciding

 

Here's my two cents and not knowing the specs on the LE cams. In our Southern CAlifornia car club running moded L98 third gen cars, some members have 225 and 226 degree cams with 113 and 114 LSA's and passing smog easily. The tuning is a key issue. Will have to wait on the 230 degree XFI cam car when his smog test comes up.

 

let me know how it goes!lol

 

sounds like the CC 503 (224/230 112 LSA) wilkl pass pretty easy also.

The LE1 emissions cam has LESS duration and a WIDER LSA than this cam.

When it comes to emission cams, we prefer to use a cam that will safely pass (unless you have something wrong) as opposed to trying to push the envelope and get a cam that will barely pass . . . . . . . and end up barely failing.

 

For those interested here is a link to one of the cars that recently passed California smog. This car has a Crower 225 degree cam on a 114 lsa and .570 lift. Listed is the smog report and shows how well it passed.

http://www.thirdgen.org/techboard/so...-fast-car.html

 

Cool. The cc305's (220/230, .544", 114 LSA) pass pretty regularly too. Mine passed without a tune.

 

awesome!i'll be doing research until i order my heads and cam!
thanx for the info

 

Update: Motor passed smog easily here in CA. Many thanks to Karl, Lloyd and Bret for their fine skills and fantastic customer service!

1996 Chevrolet Impala SS, ERE#8, LE 2 heads/LE 1.5 smog cam, all the goodies that go along with it. Ask if you want more details. Here are the smog results:


RPM %CO2 %O2 HC(PPM) CO(%) NO(PPM)
Test Meas Meas Meas Max Ave Meas Max Ave Meas Max Ave Meas Result
15mph 1922 14.5 0.1 45 9 5 0.45 0.02 0 393 57 175 Pass
25mph 1782 14.5 0.1 29 7 4 0.42 0.03 0 680 50 123 Pass

- Sean

 

Also of note, programming was handled by Bryan Herter.

- Sean