2000 GMC 5.3 ECSB 4WD
Flex-a-lite electric fans,
160 degree stat
pacesetter LT and ORY pipe
3in hooker Aerochamber dumped over axle with 3inch cutout,
K&N FIPK,
Underdrive pulleys,
nelson's tune,
fuddle 3200 convertor

has to fit this criteria:

• has to have power to for towing a trailer (2000lbs) at 2000 rpms with out having to drop gears all the time. i want to be able to give it gas and have it start picking up speed sorta like stock or better.
• it has to lope alot
• be able to have nelson tune it.
• take me from a 15.3 with a tb stall and edelbrock shorties to somewhere in the low 14's if not faster keep in mind i will have a bigger stall and lt headers with a cutout.

Thunder Racing Custom Camshaft - 220/220 .551/.551 112 LSA 1500-6500 RPM Power Band. Computer Tuning Required with automatic transmission cars. A very well balanced camshaft that makes excellent power across the entire RPM range.

what does everyone think.

 

With a 3000+ stall speed wont you lose everything below? I did, but make up for it at the top.

 

so just crusing around, you have no power under 3000?

 

It will feel a little bit looser-but not too much, and it will take a little bit more throttle too, until the TC locks.
I'd look at the TB stall or a TT2600 for towing and a trans cooler.

 

i got a tb stall right now with a cooler, i know what its like to give it more gas, but im looking for something that i will shave to give it gas but it will have power to move the truck nicely with out downshifting all the time

 

ok well i just got off the phone with fuddle looks like i got a 3200 stall being built as i type. so i need something to work with that.

 

That cam is too big for your heavy truck and wanting to tow without any trouble and being stock driveable. I had a 222/224 112lsa in my old 5.3 and it lost some power down low when cruising down the highway. It wasnt exactly a towing worthy setup. What you are asking of a cam is too much IMO. You arent going to get a cam that lopes like it sounds like you are wanting with a small duration cam like what you need to be able to tow. I would get the ever popular 212/218 comp grind. That cam wont give you any lope or very little but will give you a good power gain and still be close to stock for pulling.

 

ok how bad will it be if i tow. im not towing very heavy things just a 2 place snowmobile trailer with 2-3 quads on it. if i come up to an small incline at 2200rpms am i going to have to defently drop a gear inorder to keep from dropping more then 10 mph? because if thats the cse i will just start giving it more gas b4 i get to the hill, and compensate for it.

i tow about 3-4 times a year, and only go about 300 miles one way.

if im not towing how would it be as far as street driving?

im willing to give up some towing because i dont really tow that much and this year i probably will just put my quad in the back of my truck and not even pull a trailer to the dunes, so i guess i can forget the whole towing thing just as long as it is posible to tow with it, and not be a huge burden.

 

You could tow with the 220 cam I think but nothing big and it will have to drop a gear to maintain speed atleast it would have in my truck.

 

what about something a little smaller. i can get a custom grind comp cam for $345. somethign like a 218/218 .551/.551 112lsa or even a 216/216 .551/.551 112lsa. doesn't the lsa have to do with tuneing and how much it lopes?