I think that the truck engines have the ability to do very well on larger duration cams but they need the proper supporting mods such as good flowing heads and a good flowing intake. Like take my truck for example. I did the cam first and I'm doing the supporting mods afterwards. Don't get me wrong my 5.3 loves me 224/224 on a 110+4 but it will do so much better once I finish with the rest of my mods. I decided to do everything *** backwards but when the cam is properly supported with the correct mods it should do very well.

The smaller cams do so well because they require less of everything else. You can always make a big cam work if you want to but there is a lot more thought process that goes into it rather than just throwing in an ls6 cam and calling it a day because you can pick up 25+rwhp

 

This is a good thread!!!!!!!

James

 

How many extended cabs are hitting mid 13's n/a? Check out AdrenalineP's mod list and look at his time.....with a ZO6 Cam!
https://www.performancetrucks.net/fo...er.php?u=41235

Do you think he'd be running a 12's if he had let's say a 224/224 .581 lift? I honestly don't know. Hell he's only .4 away from the fastest n/a 5.3L ecsb and a better tune could easily make that time up.

I'm not saying you're wrong, but I am saying that some of the fastest n/a 5.3L truck on here are running tr220's and smaller.

 

My 6.0l ECSB went 13.5 at 100 or 101 mph.
TR220/.551/112LSA
This was with a damn near stock tune, running out of injector at 5200rpms,3.42 gears, a very small TT2600 converter and spinning the first 20 foot or so.
Basically i'm a fan of not overcamming a motor. Me= like the baby 220 in the ol 6.0l

 

I just learned so much that I don't know jack..

 

I think the main things to note for a stock head/intake truck is that a nice reverse split cam to overcome the intake restriction while keeping the lsa low to bring the power in sooner. While the lower lsa will create a powerband that is "peakier" it will bring the power on sooner while the truck intake can still flow the CFM to support the power in the lower rpms so you get the heavy turd up and moving before you run out of intake. I would love to see someone like TDrumm run a cam like his and retard it and advance it just to see how drastic it changes the pwoerband. If someone near Austin were to run a cam like that I would help make the adjustments on the timing, any takers?

 

Really well I bet. I have a buddy on the Tech forum that runs an A4 firehakw with a tr230.....230/224, that cam works really really well. Power peaks at about 6200 but it carries that power to 6800. Revese splits have an awesome powerband, early torque and they tend to carry the power for a while once they peak. Definetly not a great cam for spray, but for a NA application with the 78mm induction, they work well.

 

thats the thing I was getting at. We know that the the small cams make power for trucks, I'm not arguing that. I trying to argue the point that big cams CAN work you just have to match your setup a lot better than just throwing a cam in, full bolt ons and then dropping some weight and trying to get traction.

But you proved my statement anyways. Which was that the small cams do so well because they require so much less than everything else. You don't have to match the heads perfectly or have certain bolt ons to make good power with them. That's all I was saying. I wasn't saying that they aren't worth anything. **** I just helped put a z06 cam in Mike's (Laynlow77) truck 2 weeks ago. I think they are great cams. All I'm saying is that big cams have the ability to make big power if they are properly matched to the rest of your setup but that's just IMO. Not a lot of people have the money to go around testing that theory and most people will just go off what others say on here because it's proven. Which there is nothing wrong with that but I didn't just pick a cam off the shelf just because, mine was a long thought out process and hopefully one day soon I will get the rest of my **** together and find out how to make it work the best.

 

Maybe some day I'll do just that.

 

I wish you were closer, I would help you break it down to change it.