I thought this would be an informative post. It is a continuation from another post here: https://ls1tech.com/forums/showthread.php?t=113454 about the '02 LS6 cam in a 5.3L.

I have run the Crane 208/216 .500/.500 113lsa cam on boost. I thought the 113lsa was leaking some boost, so I now run an '02 LS6 cam (204/218 .555/.551 117.5lsa). Here is what I said about the switch in my post on the linked thread:

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Originally Posted by Ryan23silverado
Hey Flem, you know your stuff man! The '02 LS6 intake lobes are retarded 2*. For this reason, I installed an adjustable Rollmaster double timing chain set. I advanced the '02 LS6 cam 4* with the Rollmaster. I am expecting good things with this cam! I will let you guys know how she feels
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Well, right now she feels like a turd compared to my Crane Cam! I am only beginning tuning for it though (I know that WOT is way rich)
However, L-trims are now really negative which leads me to believe that the '02 LS6 cam is not letting in as much air as the 208/216 .500/.500 113lsa cam was. that was alot of work for this, I will tune before I get too frustrated though...

Lets hear some other boost cams you guys run.

 

Comp Cams has recommended a 216/224 .524/.534 for me twice. Once on a 114+2 and again on a 115 or 114 for the choppy idle.

A 3rd time they recommended to me a 212/218 .522/.529 on a 114 center. I thikn I'll go with the first one prolly on a 114.

 

Okay I have tuned for hours on the '02LS6 cam. Holy sheeeet what a difference the right tune can do. Verdict on the '02 LS6 cam: I like it, I like it a lot!!!
It seems my air/fuel was just way out of whack to begin with. I have tuned Idle air values in edit (this cam idles so smooth compared to my old 113lsa cam) tuned l-trims (might still be just a tad rich) and Power Enrichment (I see 0.92-0.94 on the O2 sensors).

This cam lost the slightest on low end it feels. I think the tighter valve overlap of the '02 LS6 cam is holding in more boost pressure at cruise even with the Whipple's boost by pass valve open. I believe that is why the torque loss is not too noticeable.

At wide open throttle, it for sure is holding in more boost than the old Crane 113lsa cam I had in there. The new cam flows a lot more peak air than the old cam too. From AutoTap readings of the MAF, the peak seen on the Crane cam was 255.01g/s and on the '02 LS6 cam peak was 272.05 grams per second. So it is flowing more at WOT.

 

I forgot...I need to hook up my ghetto rigged boost gauge and see if the psi increased with this cam. With the Crane cam I saw a peak of about 5.25psi at 5700rpm.

What MAF readings are you other supercharged guys seeing? With what cam? Amount of boost/type of SC?
BlownChevy you gotta install that Lingenfelter GT2 cam soon man I am interested in the results.

 

I looked at some old logs of mine from the black truck. I see 54.2 lbs/min from the MAF .. I don't know what that equates to in g/s though. I was seeing about 8.5 pounds at redline.

What is the lobe center of that LS6 cam?

 

54.2 lbs/min is a ton of air. My 272.05 g/s is 35.992 lb/min. I guess that is what more boost does for you Was that on the stock cam Flyer?

The '02 LS6 cam is a 204/218 .555/.551 117.5 lsa
I would have liked to get a 115 lsa or so to keep a little bit more torque but still keep in boost. However I liked the price and measurements of this cam.

 

Yes, that was the stock cam. My new truck is pulled 37.9 lbs/min. but was more consistant at about 34.5. This is stock cam as well, just as listed in sig.

 

woops...I forgot to tell you on your ICL question Flyer that i have the new cam advanced 4* with an adjustable timing chain.

I noticed last night that there is something else that should be stated with peak MAF flow is the rpm at which it is seen. AutoTap does not read lightning fast, therefore a max MAF read might not come from a max rpm reading. I think a gear reading is good too or just look at your rpms and see how many times it shifts to figure out what gear you are in.

This is a lot more accurate: With the '02LS6 cam and wide open throttle, I saw 34.802 lb/min at 5635.5rpms at the top of 1st gear. It then recorded that 35.992 lb/min reading at 5267.8rpms in second gear.

Hey Flyer could you post your readings like I just did man. I think it is a lot more accurate than just peak numbers. I am interested, I just wish we both had the same blower and same amount of boost readings.
Thanks man