As you can see from my sig I am better at bigger motors. I build and tune all my own stuff but I am totally new to the truck thing.

I have a free Futral 224/230 114 cam that I am thinking of putting in my 06 5.3 Silverado Z71 extended cab. I am installing some AFR 205's milled to 59cc's and OBX LT's and have this cam now. I have ported the TB installed an air intake and done a 160 thermo, wires, plugs, and cheap Summit exhaust. The question is, is this cam too big for the 5.3. In my mind it is a tiny DD cam that I put in cars where people don't want to know there is a cam there. But it seems that it may be a little large for the 5.3 with a stock converter.

My final plan is to put a TVS 2300 on it and I think the cam will be perfect for that. But if I am going to have the heads off I might as well put the cam in at the same time. I just don't want a dog down low. It is a truck after all.

Thanks.

 

what Compression ratio are you headed for? 10:1? i think that cam needs a stall, but should not be too bad that you cant drive it. with the added comperssion, it will add TQ so it is not as doggy down low. however, the 2300 IMO is overkill. TVS 1900 is plenty big for a 5.3. its the weight of the truck that will make it a dog with that cam and a stock verter.

 

+1, you're definitely going to want a higher stalled torque converter with that cam in a 5.3 IMO...I'd recommend 3200-3400 for N/A, I'd guess a little less for the supercharger...

 

I was affraid the cam was too big. I just didn't want to spend the money on any thing right now. I was hoping the stock intake manifold would keep my low end up enough to make the cam usefull. The compression will stay relatively the same with the AFR's. The stock heads are 61cc's. So maybe a .1 or .2 change at most unless I went with a .040 cometic. I was looking at the 2300 so I wouldn't have to do it over again. Eventually I want to do a 400+ci engine and make 700+/700+rw. It is just killing me going from a car that ran bottom 10's@137+ to the truck that barely gets out of it's own way. I guess I will hold off on the cam for now. Thanks guys.

Brett

 

a circle D 278mm 3200 stall is 375 bucks for PT.net members if you want something for the meantime to use with that cam but if you plan on a blower than you will have to upgrade to one of his stronger converters when that time comes

 

I have a similar cam to that and i did notice a loss in low end. But not as much as i thought it would. With your milled heads giving a little extra comp, if you had like a 4 deg advance in the cam, i'd imagine you would have close to the same bottom end as you do now. I cant really complain about the real low rpm drivability but the 2 to 3.5k rpm area kinda sucks under heavy throttle. BTW my cam has 0 deg advance.

 

Jeteys. How do you like the 3,200 for normal driving? This thing is a DD 4x4 that gets worked over during hunting season.

LS1. I called Futral about the advance on the F-7 cam and had to leave a message. You might get some of your throttle response back also if you manipulate the B1507 table so the throttle input matches the throttle blade opening. It is the red folder that only pops up when the computer is hooked up to the vehicle. I do that to all the cars and trucks I tune and it makes the vehicle feel like it gained 50rw down low. You have to be carefull with stock stalled vehicles though. Be a little gradule on the bottom.

 

I LOVE IT. It drives like stock until you go WOT or push the pedal in a good bit (i did this alot after getting it in just cause its fun) and it will stall up a tad more than stock. Mines a DD 4x4 too and it sees the woods/farm alot hauling firewood or doing what you said and that's getting to my hunting spot.

 

i like that cam my frriend has it on a 112lsa and it runs strong on his 5.3

 

Cool, I will have to look into the converter. Do you know if the tq multiplication is up there with Yank and Vig?

Playing phone tag with Futral they put 2-4* of advance into thier cams. I will have to corner some one over there tomorrow and get a good answer from them on what they think.

I also played with my compression ratio calculator and can get it up to 10.05:1 if I use a .040 Cometic and the 59cc's. That should help me make up some of the lost dynamic compression. Advancing the cam should do a little bit as well. It seems that I will be limited to 5,500rpm with the stock intake so getting as much bottom end as I can will be good.