get a better tuner as well

 

whats your opinions/experience with the wat4me tunes? I noticed a big difference, but was also the only tune I used so I can't compare..

 

Anyone have a video of a 5.3 with this cam so I can see what it sounds like? how about some before and after dyno numbers with this cam and the 5.3?

 

https://www.performancetrucks.net/fo...d.php?t=445175
heres a thread with posts on that exact cam, shouldnt pick a cam based on how it sounds though so here is a thread all about that cam with dyno sheet and all
https://www.performancetrucks.net/fo...d.php?t=435536

 

they show 2 cams under that number, same duration but different lifts. would you recommend the lower lift one? also, why exactly should I be careful about over camming it with a lift and bigger tires when I have done the gears to compensate for bigger tires? thanks guys

 

nice, thanks.

BTW im not picking it for the sound I just want to have an idea how it will idle with it because Ive never cam'ed a fuel injected engine and not sure how much it will change compared to, say, my 67 camaro after I did the cam in it.

 

The high lift one is supposed to move the power higher in the powerband, for a lifted truck the low lift cam should be better.

Every aftermarket cam will move the power up in the power band compared to the stocker, but it will hurt low end to a point, so it's a trade off. The 212/218 low lift cam is an excellent compromise as it should keep the same low end (or really close) as the stocker and will give you some gains on the mid-top end.

Once you go over this size it starts to hurt low end, and you won't get it back with any gears.

 

Got ya, as I look more and more into this cam im getting closer to choosing it. I read a couple threads on this cam with the 5.3 and the guy ran the dyno before and after and showed pretty much no loss at the lower end, and alot of gain in the upper end. it sounds like it idles a little choppy, but not too much for a daily driver which I like.

comp cams camquest program recommends a 2100-3100 rpm stall for my truck with that cam. is that realistic or should I go for around 3200 or more like recommended earlier on this thread? I dont want too much stall, but at the same time want to take advantage of the added mid-high horsepower from the cam.

also, other that better lifters and pushrods, what else should I do while installing the cam? will my factory valve springs be ok with the cam?

 

I have the stock converter with it and it feels exactly the same as with the stock cam, so a converter isn't needed right away. A tt3000 or Circle-D 278"mm should be perfect if you want to tow, plus they're supposed to feel like the stock one just flash higher.

I got a set of cheap GM yellow springs and used the stock pushrods. I guess it depends on how much you want t spend really.

Other than that you're going to need the front cover seal, 2 water pump seals and that's it.

I forgot, you'll need a tune after the cam if you want to see the full benefits. It rides ok on the stock tune but my truck really came to life after the Blackbear tune.

 

Yeah, I might justwait on a stall converter and just focus on the cam. On the gen III motor do you have to take the oil pan off like on the classic chevy smallblock? also, I will have the heads checked out since I will have them off. Anything you would recommend I do with the heads other than maybe springs?