Cam Motion 5.3 "drop in" cam results, +41rwhp/22rwtq
01-26-2017, 01:17 PM
#81
Bumping this up. Thinking of doing the same cam in my Rainier. I need to change the waterpump at some point as it has a slight leak so I figured I might as well throw a small cam in it. I use it tow the Camaro on an open trailer and while it currently does pretty well, having some more midrange on tap would be nice.
Is it imperative that I change springs? I'm sure it would probably be a good idea but figured I'd ask.
Is it imperative that I change springs? I'm sure it would probably be a good idea but figured I'd ask.
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40 years of Championship Winning Experience • Superior 8620 Steel Camshaft Cores • Quiet, Smooth & Powerful Lobe Design • Virtually Unlimited Lift and Duration Combinations • Finish Polished For Quiet Operation • Cam Doctor Printout With All Cams
The Industry's Best Customer Service
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01-26-2017, 02:57 PM
#83
Since the thread is already bumped I forgot to post the picture a couple months ago but the truck crossed 200,000 total miles. Think as of today it's up to 203,650.
On that trip I drove from SE OK to Tulsa with 38 used torque converters in the bed and got 18.6mpg on the way there (turnpike at 75-80mph), dumped them out and drove home to the tune of 21.4 mpg on 87 octane (went south then cut through Durant on highway 70 with quite a few small towns and stoplights)
On that trip I drove from SE OK to Tulsa with 38 used torque converters in the bed and got 18.6mpg on the way there (turnpike at 75-80mph), dumped them out and drove home to the tune of 21.4 mpg on 87 octane (went south then cut through Durant on highway 70 with quite a few small towns and stoplights)
01-26-2017, 03:12 PM
#84
TECH Senior Member
You done GOOD!
02-13-2017, 10:56 AM
#85
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In reference to post #93 here: https://ls1tech.com/forums/dynamomet...am-only-3.html
Kip wanted to see how one to of the 5.3 drop in cams would do in the real world but I lucked into being able to get a before and after dyno as well.
My truck, BEFORE:
1999 Silverado single cab short bed, 170k miles (unless engine was replaced prior to me purchasing the truck)
2.5" dual exhaust, no crossover pipe, no cats, Thrush welded mufflers, stock manifolds
home ported throttle body
ebay CAI (no gains over stock airbox)
very mild EFI Live tune (ls1 timing table with a couple degrees pulled, no TM, slightly leaned PE, no MAF or VE correction)
Added:
Cam Motion Stage 2 5.3 drop in cam (205/210 .510/.510 115+4)
GMPP blue beehive springs
EFI Live tune (updated to 02 operating system due to constant 8* KR post cam, stock ls1 timing table, MAF and VE corrected using CALC.VET procedure)
literally everything else is the same except gaskets and oil, reused stock rockers, pushrods, lifters, oil pump, timing set, etc
Notes: 2nd gear pulls, same dyno 2 weeks apart. Dyno seems stingy, a ZL1 automatic with 400miles went on right after me and made 436hp, but the gains are all I was concerned with. No dyno fan was used, literally pulled it in strapped it down and made some pulls. 89 octane fuel for both.
I was quite shocked honestly. Seat of the pants is impressive from idle to the 6000rpm redline and I could definitely tell it was making more power, but I was expecting about 22rwhp tops. My MAF readings went from ~29 lbs/min to ~34 lbs/min.
The truck drives incredible around town and on the highway. The gains are enough to have severely reduced the converter's need to unlock pulling up hills and a few times around 40mph it's been in OD with the converter locked cruising down the road at 1000rpm like it's nothing.
Early MPG calculations (it's 200 miles to the dyno I used) are showing an approximate gain of ~1.2 mpg highway. Further monitoring will be done to confirm and get a better average. One of the front o2 sensors is currently reading 6% off so I need to correct that for best results.
Needless to say, I am very pleased and was expecting much less from such a small increase in cam size. Whenever the Speed Engineering longtubes come out, I will be adding those as well.
Kip wanted to see how one to of the 5.3 drop in cams would do in the real world but I lucked into being able to get a before and after dyno as well.
My truck, BEFORE:
1999 Silverado single cab short bed, 170k miles (unless engine was replaced prior to me purchasing the truck)
2.5" dual exhaust, no crossover pipe, no cats, Thrush welded mufflers, stock manifolds
home ported throttle body
ebay CAI (no gains over stock airbox)
very mild EFI Live tune (ls1 timing table with a couple degrees pulled, no TM, slightly leaned PE, no MAF or VE correction)
Added:
Cam Motion Stage 2 5.3 drop in cam (205/210 .510/.510 115+4)
GMPP blue beehive springs
EFI Live tune (updated to 02 operating system due to constant 8* KR post cam, stock ls1 timing table, MAF and VE corrected using CALC.VET procedure)
literally everything else is the same except gaskets and oil, reused stock rockers, pushrods, lifters, oil pump, timing set, etc
Notes: 2nd gear pulls, same dyno 2 weeks apart. Dyno seems stingy, a ZL1 automatic with 400miles went on right after me and made 436hp, but the gains are all I was concerned with. No dyno fan was used, literally pulled it in strapped it down and made some pulls. 89 octane fuel for both.
I was quite shocked honestly. Seat of the pants is impressive from idle to the 6000rpm redline and I could definitely tell it was making more power, but I was expecting about 22rwhp tops. My MAF readings went from ~29 lbs/min to ~34 lbs/min.
The truck drives incredible around town and on the highway. The gains are enough to have severely reduced the converter's need to unlock pulling up hills and a few times around 40mph it's been in OD with the converter locked cruising down the road at 1000rpm like it's nothing.
Early MPG calculations (it's 200 miles to the dyno I used) are showing an approximate gain of ~1.2 mpg highway. Further monitoring will be done to confirm and get a better average. One of the front o2 sensors is currently reading 6% off so I need to correct that for best results.
Needless to say, I am very pleased and was expecting much less from such a small increase in cam size. Whenever the Speed Engineering longtubes come out, I will be adding those as well.
My buddy and I are going to install it but he lives 2 hours away. Will I be able to drive it till I can get it tuned? I do have a Superchips tuner on it now. thanks
02-13-2017, 11:24 AM
#87
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thanks, I'm looking to gain a little more for towing our camper. The truck has 4.10 gears but on some hills it drops to second gear and just screams. I'm hoping this will keep it from going into second. also the camper loaded is around 8-8500 lbs.
03-01-2017, 12:42 PM
#89
TECH Veteran
Scott.... 8500 lbs is a real load to be pulling with a 5.3 motor. Since you already got the gears I would turn my attention towards a torque converter. Call Circle D and tell them exactly what you are doing. I bet they can help get you setup with a nice converter that will help pull that camper.
I think about towing daily.... all the guys that tow with a 5.3 or 6.0 hates it. I'm considering going to a old big block myself one day just for the purpose.
I think about towing daily.... all the guys that tow with a 5.3 or 6.0 hates it. I'm considering going to a old big block myself one day just for the purpose.
03-01-2017, 01:59 PM
#91
TECH Veteran
Most claim 10 mpg on a good day while towing. 9 mpg is really more like it honestly.
*4L80 with 4.10 gears
454 motors you'll get the same mpg towing but with a low end grunt that 6.0 don't have.
03-01-2017, 02:03 PM
#92
Well, I have owned all manner of pickups heavy trucks. Small block, big block and diesel. I can tell you that my one big block truck got 6 mpg. The small blocks were around 10 to 12. With that said, the diesel trucks fuel bills were just a little more than half per month what the gas trucks averaged. We actually pulled the big block out of the that truck and installed a diesel. Best move we made.
03-01-2017, 02:15 PM
#93
TECH Veteran
Well, I have owned all manner of pickups heavy trucks. Small block, big block and diesel. I can tell you that my one big block truck got 6 mpg. The small blocks were around 10 to 12. With that said, the diesel trucks fuel bills were just a little more than half per month what the gas trucks averaged. We actually pulled the big block out of the that truck and installed a diesel. Best move we made.
Duramax- injectors go out.
Ford- head studs made from crap metal.
Dodge-tranmissions ain't worth 2 cents.
07-14-2017, 10:22 AM
#95
Haven't been on here in a while but thought about this thread while doing my oil change yesterday.
Happy to report I've now crossed 210,000 miles on the engine and there are no signs of any issues. This means the cam/valve springs have about 40,000 miles on them.
Still literally not doing anything but changing oil every 5,000 miles (with whatever is on sale that day) and putting gas in it.
Happy to report I've now crossed 210,000 miles on the engine and there are no signs of any issues. This means the cam/valve springs have about 40,000 miles on them.
Still literally not doing anything but changing oil every 5,000 miles (with whatever is on sale that day) and putting gas in it.
07-14-2017, 10:38 AM
#96
TECH Senior Member
Sounds like a winner to me!
07-17-2017, 02:41 PM
#97
LOL @ 6.0 not having the low end grunt of a big block. It has big block low end and more up top. It weighs much less and doesn't **** crank bearings like it just left a Mexican restaurant. If you do set up a big block rig to compare or surpass a 6.0, (It's very easy) it wouldn't get 10MPG if you dropped from an airplane.
07-17-2017, 02:55 PM
#98
TECH Senior Member
Yeah, a big block can do all kinds of stuff, so long as you feed it with a 1" fuel line running at capacity.....
It'll pass anything but a gas pump....
It'll pass anything but a gas pump....
07-19-2017, 09:43 PM
#100
TECH Resident
LOL @ 6.0 not having the low end grunt of a big block. It has big block low end and more up top. It weighs much less and doesn't **** crank bearings like it just left a Mexican restaurant. If you do set up a big block rig to compare or surpass a 6.0, (It's very easy) it wouldn't get 10MPG if you dropped from an airplane.