waltsfastz

iTrader: (4)

Building a Fox body with a 5.3. This car is going to be a driver.Car will have a 4l60e. Was talking to a Erson rep at PRI last month and he sugester either of these 2 cams
230/238 .578lift 114
or
234/242 .621 lift 114
he also reccomended bee hive springs for anything under .600 lift. I thought these were a little large for stock heads and very street friendly. If not what is everyone suggestions? I have a TR224 in my vert that makes good power and has good street manners. Catch is we are an erson dealer and I can get these at a good deal. Thanks for any input

nobreaks254

iTrader: (50)

Lol. Yes they are too big

99 Black Bird T/A

iTrader: (4)

Both are bigger than the cam in my 383 LS1 stroker. I think both would work pretty well in a larger 6.0+ engine. Those cams might make nice race cams with a 4L60e and 4000+ stall.

I would contact other vendors for suggestions.

Driver 5.3 seems like a 224/230 at .050 cam might might work well but thats pretty aggressive.

Felix C

5.3 is 7% less than a 5.7 in terms of displacement

waltsfastz

iTrader: (4)

That's what I thought as well. Too big. I think I'll go with the 224 or thunder has a 228 that looks good as well thanks for the input. What about beehives? Use them or no?

Floorman279

iTrader: (11)

In a 5.3, absolutely keep the lift under .600 and int and exh duration absolutely no more than 235, and thats pretty high too. I find it odd that your exhaust duration is so high. Cathedrals dont need duration splits like rectangles do.

As far as springs, id say under .575 lift you could do beehive. Simply becuase the maintanence is much less on hives vs doubles. Doubles i think they say swap every 10k.

Generally more cubes means you can get away with more duration. I know stock ls1s consider anying over 235 to be a large cam, but a cam on a 416 isnt considered big until over 245

C/10

So LJMS stage 3 truck cam is to big for a stock 5.3?

codyvette

iTrader: (24)

You can debate what's "TOO BIG" until the sun gets tired. As far as springs, I will never run another beehive set on anything bigger than an LS6 cam again. Ask me why. Jegs sells a Jegs brand cam with 228/230 on a 114 lsa for cheap if that's your goal.

99 Black Bird T/A

iTrader: (4)

Per Lil John Motorsports website:
https://www.liljohnsmotorsports.com/...camshafts.html

Truck Stage III Cam 218/224 .553"/.553" 113+3

Truck Stage IV Cam 224/230 .553"/.547" 111+2

Both the stage 3 & stage 4 cams are with in the guidelines he mentioned. They have less than 235 duration @ .050 lift and max lift less than .600

Floorman279

iTrader: (11)

Correct on the too big comment, and i agree with the beehive comment as well as long as no racing or slightly long increments of upper rpm use. I too have read lots of beehive hate stories.

Op when i say too big im talking too big for 100+ mile a week use. Too big is almost irrelevant imo for a weekend car.

JakeFusion

iTrader: (7)

Both too big in a 5.3 and probably on the edge of too big in a driver 5.7. I wouldn't worry about lift. I'd worry more about lobe profile.

I would recommend something like a 222/226 114 or so with .600" lift on milder type lobes from Cam Motion, EPS, or Comp LSL and a decent dual valve spring like a PAC 1904 or BTR Platinums. Something in the 150/400lbs range with stock rockers.

waltsfastz

iTrader: (4)

Thanks for all the input. This car will see the track every once in a while but will see some miles. I told the rep I thought this cam was too much in a 5.3 with stock heads and a driver but he insisted it wasnt, Especially when I talked to other companies all day that was thinking like I was. I may go with the behives. Ive been running them on my convertable and have done well. Thanks again

Taspeed

iTrader: (1)

too big is relative around here. MY 5.3 cam is substantially larger and makes 600 at the wheels (untuned ) With the right compression and gears anything will run. thats where the relative part comes in. I can drive a top fuel car on the street as long as it stops and idles, but for some a rough as hell cam is too much and not comfy. (wieners) 646 646 246 242 108* with around 12:1 on a stock bottom end and a 2.5 inch true duals with bullets....its violent at about 4k and pulls hard past 9k. My money is the valve train. I spent a lot of time getting the geometry right, and timing was a bit of a bitch, but not impossible. You want to turn heads and make power...go big or go home. these 5.3's love them some big cams.

TheeCamaroKid

so BTR truck cam basically?

TheeCamaroKid

5.3 in a Fox sounds fun, what are your power and or ET goals if any. What supporting mods will you have. Heads/Intake/comp ratio? EFI or carb.

kinglt-1

iTrader: (26)

Most folks associate the term "driver" in relation to something that still maintains some low speed TQ and power under the curve. A setup that replicates a 2 stroke powerband does not fall under the "driver" category.

99 Black Bird T/A

iTrader: (4)

Only why to know for sure what any cams specs are is to put it on the cam doctor and check.
They do look the same based on the info given.

My guess is its basically the same stage 3 & 4 cam.

I think both look like decent cams.

waltsfastz

iTrader: (4)

No real goals(If that makes sense) Dont want another drag car and would like to be able to hop in this one, turn on the a/c and drive it to work nearly every day. therefor fuel mileage is to be concidered. Gonna use fuel injection with either the stock truck intake or a LS6 intake. Planing on upping the compression to 11:1 minimun. Not planning on spray or turbo in the near future. Going with long tubes and a 3600ish stall so cam lope is not really an issue. 3.73 gear

Sales2@Texas-speed

iTrader: (5)

waltsfastz

We have dyno'd about 12 different cams on the 5.3 recently. Everything from Lower duration lower lift to higher duration Higher lift and everything in between. There are very noticeable difference where the cams pick up power throughout the band.

If you give us a call we can shoot you a dyno graph on the cam you are looking at. That way you can see exactly what your getting. This way you don't have to guess at it.

We are lucky enough to be able to test the camshafts we sell, so we know exactly what they are going to do, instead of guessing at it.

Taspeed

iTrader: (1)

I am making 400ft lbs at 2k...hows that for low end torque?