Looking at a comp LSR 227/235 .614/.621 113LSA its going in a 01 reg cab short bed 373 gears 3k stall. Plan on changing to a 3600 stall later. Input appreciated
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Looking at a comp LSR 227/235 .614/.621 113LSA its going in a 01 reg cab short bed 373 gears 3k stall. Plan on changing to a 3600 stall later. Input appreciated
That is a very big can for a 5.3 are you going to be spraying and do you plan to drive it other than racing? Behind a 3600 it will be pretty good, but behind a 3k it will be a dog down low. I would suggest something a little smaller. 224/228 is a great 5.3 cam.
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Originally Posted by kerrige
It already has a 224/230 in it now. Looking for a little more power above 3500. Plan on porting the heads and adding a nnbs intake n 90mm tb
I don't know how much more you will really get by changing cams. Porting the heads and allowing it to breath better will help IMO, but changing the cam seems like a waste of time to me. For a small motor I think it will move the power band move up, but it won't net valuable gains unless you are planning to run 65-140mph roll races. You will want 4.56 gears for that monster cam.
Quote:
Originally Posted by kerrige
Well 65-140 is where its at!!! That my plan. I have seen lots bigger cams in 5.3s. This will strictly a highway roll truck.
I think your money would be better spent on spray if you are going to be roll racing. The cam you have now is such a good cam for a 5.3. A max effort cam verse the one you have will net you 10-15hp. You will be much better off bolting on 150hp that you can add at the touch of a button. Roll racing is mostly about horsepower.Quote:
Originally Posted by GraniteBlueNNBS
Useable Hp > peak Hp.....
Well im also wanting a lil more thump at idle. This cam isnt even notible
What about comp 223/231 610/614 112lsa. Wanting more thump n a lil more power this is a lsr lobe vs xer lobes. Will be adding new lifters n springs.
A 224/230 is not noticeable at idle??? What is the lobe separation angle? Through a stock exhaust?Quote:
Originally Posted by GraniteBlueNNBS
If you want more thump then you need to ask your tuner to lower your idle a bit and give you a choppy idle timing. A lower LSA would help as well. Your duration is already good to give you a mean thump, however, changing lobes isn't a bad idea.Quote:
Originally Posted by GraniteBlueNNBS
If its the same grind as my old 224/230 then you are smokin mule dick if you think its not noticeable. My crap sounded like king kong in the bed of the truck.Quote:
Originally Posted by jmgak47
Garrison you helped put the cam in my truck nuckle head. Its a 224 230 but on a 114 lsa. G yours was on a 112 lsa.
It still should have a nice chop to it with the right exhaust system. Still in no wise tame sounding.Quote:
Originally Posted by GraniteBlueNNBS
NP told me to do a 228/228 112LSA and a 2800 stall, said that is a great reliable set up for the 5.3. I've done some research on it and there's right at a 90 horse gain from stock. That's with a tune to. The idle will make you fall in love. I don't have a cam so I can't say for sure, but that's what I'm going with. NP knows there stuff.
Quit changing your screen name lol, only thing I could suggest is a more free flowing exhaust.Quote:
Originally Posted by GraniteBlueNNBS
I got a smaller cam than that on a 114 and it screams race truck! No way I can hide it! https://www.youtube.com/watch?v=8ZPX...e_gdata_player
Mine screams like hell at full throttle. Just want a harder chop at idle. Im gonna do ported heads n new lifters so I might as well do a new lsr lobe cam.
overspeed and underspeed and timing at idle and idle rpm... adjust those to the idle sound you like.
Thanks for the input Kirt