How is the idle? I would think fairly choppy with -2 overlap.

 

Might not be too bad. The Hot Cam has around -1 or zero overlap and it has a lope, but not choppy.

 

https://www.facebook.com/kenny.dangler/videos/10222266353073735/

 

 

wow sounds great with that 108 lsa and still makes all the torque! best of both worlds! Seriously want to try that in something...

 

Yes, choppy for sure.

 

I'm really digging these cam specs the more I think about it, I have a 2004 suburban L59 5.3 4x4 4.10's stock converter stock tires daily driver. I've modified it with 706 heads 0.048 gaskets 4.8 flat top pistons and the BTR stage III truck cam and it runs great with a great tune up, it's way faster than stock, but now I'm thinking I'd be even happier with one of these shorter duration guys with similar overlap to the BTR stage III truck I have in my flat top 5.3 right now which is a 218/224 113+3, I think the smallest one on a 108 would be awesome to try with my setup I probably wouldn't have to change the tune much either

 

Do you have any idea when these will be made available to us little ppl?

 

They are available. Do a google search. I can’t post a link because the site I saw them on, isn’t a vendor or sponsor here.

 

I searched Google and Callie's site with no luck. I'll try again

 

Check CNC Motorsports. Go to Engine parts, then camshafts, then do a search for Callies. I’m sure there are other vendors as well.

 

I honestly really liked that cam. It was my favorite of the bunch.

 

Id give them a call on Monday. Ask for Justin. He can get you set up.

 

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I honestly really liked that cam. It was my favorite of the bunch.

Thanks for that, makes me pleased I stuck with my low duration tight LSA cam after a lot of mind numbing deliberation over it. I only have to think about how the car is used most of the time and It becomes easy to decide.

​​​​​​People say don't chase a number but that is not quite correct, still chasing a number but lower in the rpm were it's used most.

I have a graph out of street magazine article where a lot of cams were tested side by side and a 212/212 makes 50 ft lbs more than a 228/228 at 2200 rpm tested in same LS1.

 

Yeah I thought they dynoed in the low 200's and you confirmed that, but you showed a dyno that yours did 248 stock cam? When you say low 200's is that bone stock exhaust and tune and all? And yours is tuned with exhaust making 248? I'm in no way saying your numbers are false, I just have looked up dynos on these trucks for a while and numbers have been all over the map.

There's a couple of guys that have posted 240-250 cammed and tuned.. nothing seemed to make sense, so when you posted 248 stock cam I was wondering if yours was reading high, or normal or..?

 

248 was the oem camshaft with the exhaust that I made for the truck. 1 7/8" longtubes, x pipe, dual 2.5" stainless exhaust. I did no tuning outside of turning off the rear 02's. So effectively it made 30 more whp with the headers and exhaust on whatever timing and afr at wot it was.

 

Im still not sure where you are looking? I find a ton of 330+ stuff. Nearly every search.

 

All the wrong places I'm sure.

One of the main ones I looked at in the past, when I started looking at drop in cams for my 2004 truck, was Thunderstruck's post. He was really detailed so I leaned towards trusting these numbers. But they also seemed low. But then again, years back I had no idea what one of those trucks would baseline
https://www.performancetrucks.net/fo...-531293/page2/

After that I did a bunch of looking on youtube and saw numbers from 200-300 on gen 3-4 5.3 trucks and I didn't understand how one guy would have a 5.3 truck with bolt ons doing 300 and another one stock doing 200 and another with a good write up and full details doing 250 with a cam.


For whatever reason when I did search for dyno numbers on 5.3 trucks (gen3-4), it seemed like I never got consistent numbers, and got dyno numbers with minor info on the mods. I kept seeing them dyno low 200's to as high as 330 with claims of being stock, or bolt ons only. There's a gen 4 5.3 truck on youtube supposedly doing 330 with exhaust and a tune. I didn't understand the massive swing in numbers and I still don't. Really doesn't matter just gonna trust your numbers here.

Add on top of that been talking a bit with a guy here recently making 250 with a cam, with bumped compression and a little headwork (it is a 4.8 but close enough).
https://ls1tech.com/forums/generatio...valuation.html

So again, it just seemed like I saw numbers ranging all over the map, thunderstruck and the other dude only made 250 with a cam and had detailed posts and likely built properly so I leaned more toward trusting those numbers since there was so much info in those posts.

Then I see yours with good info making 250 exhaust only and the loop of wtf just started all over again lol.


I apologize for clogging up your thread. I'm just going to take the info you provided as the right info and run with this..... 210-220 ish stock. 250 bolt ons, maybe 270 full bolt ons and tune for gen 3-4 5.3 trucks. And I'm assuming with full bolt ons a good tune 93 octane and light wheels they can do as high as 300

And then of course your cammed numbers. Thank you for the testing and info, I've been wondering for a while what these things do when solid information is provided.

 

I was probably searching differently than you and using much different search terms. I was just using "5.3 dyno"

 

I do what you do, I look at lots of dyno results and get an average, but !!!

Isn't it reasonable to assume dynos can vary plus or minus 5 to 10% between them.

Not only that it often doesn't reflect how fast the vehicle will be or how fun it is to drive.

Although the graphs are useful here because it shows the difference in the same set up on same dyno with the different cams.

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