6.4l cam in a 5.7l hemi dyno results

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Raadz

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2014 ram 1500 4x4 sport 5.7l hemi 8 speed truck 3.92 gears.

Thought i'd make a little post about my personal experience for those who are trying to do what i did and just want a very straightforward answer. I read a lot of different forums during my planning stage and found a lot of conflicting information so here is what i did and it works, the truck runs and drives good, just got it dyno tuned as well.

CAM
5.7l hemi with a 6.4l non mds cam (the one from the manual challengers). i've built quite a few of these motors, when the mds system works it's great, saves you fuel but it's one more thing that could go wrong so save yourself the hassle and just get rid of it. CEL will be on for your solenoids obviously until you delete it but it shouldn't affect your drivability, it didn't for me.

SPRINGS
6.4l hemi apache springs with the factory 5.7l sized shims. The shims aren't required if you don't plan on living way up in the rpms which unless you're racing you probably won't be, but leaving the shims in or replacing them with new ones also doesn't hurt anything so that's what i did because it just made sense.

LIFTERS
I personally chose to get my non mds lifters from comp cams, not the most expensive but definitely not the cheapest. Don't cheap out on lifters, you get what you pay for and you might end up paying for another new motor. Also required is non mds lifter trays, they are different and you will need them. Also have a mellings high flow oil pump for better idle oil movement.

VVT LIMITER/LOCKER
Didn't use one, don't need one. If you put one on you'll make just as much power as stock if not even less actually. The 6.4 cam is very mild, it's an upgrade but not crazy enough to warrant a limiter.

HEADERS
If you're doing all this work anyway throw headers on the truck, currently i only have shorty headers running back into the factory cats, which isn't the best. Ideally use long tubes and highflow cats or no cats. I'm also using the factory exhaust gaskets with the built in heat shield, remflex gaskets are also a good choice, personally i didn't want to gamble with the gaskets that came with the headers and have them leak after a couple thousand miles. I also put heat shields on my knock sensors (mopar sells them) because the headers sit really close to them.

DYNO RESULTS
Mopar claims 395hp to the crank under perfect conditions, if you account for the roughly 23% loss through the drivetrain that's about 304whp again under perfect conditions. I ran my truck on 89 octane with 33x12.5r20 tires. This is a freshly rebuilt motor with 1100km on it, it's not tired and worn out. First pull made 270whp i don't remember the torque. The Final pull made 303whp @5800rpm and 335lb-ft of torque at it's peak.
I'm aware that these motors with the modifications i made can safely rev over 6000rpm and probably make more power, i'm not a tuner it's not my expertise so i let a reputable shop do the tune work and what they did is what they did. It gained pretty much exactly how much power i thought it would, just the numbers i got were lower than i expected. If anyone else has done this exact setup on the same truck and has dyno results i'd love to hear about them.

EDIT
I suppose i should mention the truck was never tuned to make the absolute most amount of power it could possibly make, my AFR was all over the place so that got cleaned up so the truck runs smooth all across the board and had my shift points adjusted. It shifts nicer and gets just as good mileage as stock with more peak torque which is great. When i deal with my cats and throw long tubes on maybe i'll throw 94 in it just to see how far we can push it (without blowing it up hopefully) because it's hard to go crazy with timing when you're running 89, most of the time i've actually only got 87 in it so. It's built to make more power but is just tuned pretty conservatively. Overall i'm still satisfied with where it's at for what I did to it and 100% do plan on doing it again with another truck in the near future.
 
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Wild one

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2014 ram 1500 4x4 sport 5.7l hemi 8 speed truck 3.92 gears.

Thought i'd make a little post about my personal experience for those who are trying to do what i did and just want a very straightforward answer. I read a lot of different forums during my planning stage and found a lot of conflicting information so here is what i did and it works, the truck runs and drives perfect, just got it dyno tuned as well.

CAM
5.7l hemi with a 6.4l non mds cam (the one from the manual challengers). i've built quite a few of these motors, when the mds system works it's great, saves you fuel but it's one more thing that could go wrong so save yourself the hassle and just get rid of it.

SPRINGS
6.4l hemi apache springs with the factory 5.7l sized shims. The shims aren't required if you don't plan on living way up in the rpms which none of us are, but leaving the shims in or replacing them with new ones also doesn't hurt anything so that's what i did because it just made sense.

LIFTERS
I personally chose to get my non mds lifters from comp cams, not the most expensive but definitely not the cheapest. Don't cheap out on lifters, you get what you pay for and you might end up paying for another new motor. Also required is non mds lifter trays, they are different and you will need them. Also have a mellings high flow oil pump for better idle oil movement.

VVT LIMITER/LOCKER
Didn't use one, don't need one. If you put one on you'll make just as much power as stock if not even less actually. The 6.4 cam is very mild, it's an upgrade but not crazy enough to warrant a limiter.

HEADERS
If you're doing all this work anyway throw headers on the truck, currently i only have shorty headers running back into the factory cats, which isn't the best. Ideally use long tubes and highflow cats or no cats. I'm also using the factory exhaust gaskets with the built in heat shield, i also put heat shields on my knock sensors (mopar sells them) because the headers sit really close to them.

DYNO RESULTS
Mopar claims 395hp to the crank under perfect conditions, if you account for the roughly 23% loss through the drive train that's about 304whp again under perfect conditions. I ran my truck on 89 octane with 33x12.5 tires. This is a freshly rebuilt motor with 1100km on it, it's not tired and worn out. First pull made 270whp i don't remember the torque. The Final pull made 303whp @5800rpm and 335lb-ft of torque at it's peak.
I'm aware that these motors with the modifications i made can safely rev over 6000rpm and probably make more power, i'm not a tuner it's not my expertise so i let a reputable shop do the tune work and what they did is what they did. It gained pretty much exactly how much power i thought it would, just the numbers i got were lower than i expected. If anyone else has done this exact setup on the same truck and has dyno results i'd love to hear about them.
Are you in Alberta,if you are who was tuner?
Good post
 

Lee Peterson

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I seen someone dyno on a dynojet got 330hp and 370 torque but had the 6.4 intake manifold too. Stock on that dyno was 303 and 311 torque
 
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Raadz

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I seen someone dyno on a dynojet got 330hp and 370 torque but had the 6.4 intake manifold too. Stock on that dyno was 303 and 311 torque
A huge restriction for me of course is the fact i've still got cats on the truck, a better exhaust would've done me a lot better. I didn't mention it above but the truck wasn't tuned for absolute peak performance, it's my daily driver and only had 89 in it so couldn't go crazy with timing to make good power. I had a lot of useable RPM range to play with still, it's built to make more power than it currently does but until i get long tubes and maybe an intake i'm happy with it. The truck currently runs and drives great, pulls hard, harder than stock for sure just because of how the cam works. Plus my fuel mileage is great which is definitely not something to complain about.
 

Wild one

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Yea, had it tuned at CCMR performance.
Yea Chris's operation isn't bad for tuning,i wish Kyle was still with him,but Kyle went back to twisting wrenches for a Chrysler dealer in Edmonton. Zelinsky/Player 3 tuned my truck for years,and he had it running 12.0's at Castrol/Rad Torque. How come you didn't use the Mopar Preformance springs ,they're a perfect fit for the 5.7 heads and will handle .625 lift cams and 7,000 rpm,i used to shift my truck at 6600 and it had well over 700 passes on it at Rad Torque and 80,000 clics when i sold it,and it was still holding strong in regards to valve springs.
If you ever went out for Friday night Street Legals,you might have seen my truck,it was a bright red RCSB.It lived there for many years on friday nights,and i'm out of Airdrie,lol
 

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Raadz

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Yea Chris's operation isn't bad for tuning,i wish Kyle was still with him,but Kyle went back to twisting wrenches for a Chrysler dealer in Edmonton. Zelinsky/Player 3 tuned my truck for years,and he had it running 12.0's at Castrol/Rad Torque. How come you didn't use the Mopar Preformance springs ,they're a perfect fit for the 5.7 heads and will handle .625 lift cams and 7,000 rpm,i used to shift my truck at 6600 and it had well over 700 passes on it at Rad Torque and 80,000 clics when i sold it,and it was still holding strong in regards to valve springs.
If you ever went out for Friday night Street Legals,you might have seen my truck,it was a bright red RCSB.It lived there for many years on friday nights,and i'm out of Airdrie,lol
It was actually really hard for me to not just go crazy and buy the best of the best parts, it's my daily driver not a race truck, i have a different truck for that. My motor was tired, 330k on it so i figured while i was in there i'd attempt a budget friendly build and see what kind of gains i could make then post about it so other people who want to do the same have a pretty good idea of exactly what to expect out of it.
 

Mojo88

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....The truck currently runs and drives great, pulls hard, harder than stock for sure just because of how the cam works. Plus my fuel mileage is great which is definitely not something to complain about.

Great posts, thanks for the info. My personal 'benchmark' is always something like a 0-60 mph time. Let's see, for you Canucks (I was born in Nova Scotia) that would be 0-96.6 kph, I guess.... ;)

Did you do any type of before/after acceleration tests? It's pretty easy to do them nowadays, cause just about every cell phone has the built-in capability.

Anyway, good posting!
 
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Wild one

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Great posts, thanks for the info. My personal 'benchmark' is always something like a 0-60 mph time. Let's see, for you Canucks (I was born in Nova Scotia) that would be 0-96.6 kph, I guess.... ;)

Did you do any type of before/after acceleration tests? It's pretty easy to do them nowadays, cause just about every cell phone has the built-in capability.

Also pretty incredible to hear all this was done on a motor with 330k kilometers/miles?? (205k miles??). Either way, it's a lot, haha.

Anyway, good posting!
In the first post he states it's a freshly rebuilt engine with only 1100 clics on it.
 
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Raadz

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Great posts, thanks for the info. My personal 'benchmark' is always something like a 0-60 mph time. Let's see, for you Canucks (I was born in Nova Scotia) that would be 0-96.6 kph, I guess.... ;)

Did you do any type of before/after acceleration tests? It's pretty easy to do them nowadays, cause just about every cell phone has the built-in capability.

Anyway, good posting!
I never made any before and after comparisons but my motor was very tired before i rebuilt it, like i was 100% not even at stock power numbers. So to me it's noticeably faster, compared to a stock truck it's hard to say because mine is lifted slightly and has bigger than factory sized tires.
 

GeauxinUp

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I doubt you saved any money by going with the comp cams lifters, probably would've been better off with OEM non-mds ones
 
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Raadz

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I doubt you saved any money by going with the comp cams lifters, probably would've been better off with OEM non-mds ones
The lifters were the one thing i didn't care if i spent decent money on because i didn't want cheaper ones to just fail, I know "hellcat" lifters aren't cheap. The comp cams lifters were actually only like $675 Cad
 
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GeauxinUp

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The lifters were the one thing i didn't care if i spent good money on because i didn't want cheaper ones to just fail, not that the "hellcat" lifters are cheap. The comp cams lifters were actually only like $675 Cad
I guess you misunderstood my point, OEM lifter are one of the top two options, with the other being Johnson’s.
 

Wild one

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The lifters were the one thing i didn't care if i spent good money on because i didn't want cheaper ones to just fail, not that the "hellcat" lifters are cheap. The comp cams lifters were actually only like $675 Cad
Comp lifters don't have a great rep,i wouldn't use them,but you might get lucky and have one of the few sets that'll last. You won't find any of the good hi-po shops/builders using them. There's basically OEM lifters and Johnson lifters with axle oiling that are the only lifters with a good rep.
 
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Raadz

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I guess you misunderstood my point, OEM lifter are one of the top two options, with the other being Johnson’s.
No i get that, i looked at getting the so called "hellcat" lifters which at the time were almost $400 more and the Johnson lifters being right around the same price point. My options were $300 amazon lifters, comp cams, or the top tier options, mellings being up there too. I was still on a budget so i chose to gamble with a very reputable brand even though this specific part isn't the most reputable.
 

GeauxinUp

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No i get that, i looked at getting the so called "hellcat" lifters which at the time were almost $400 more and the Johnson lifters being right around the same price point. My options were $300 amazon lifters, comp cams, or the top tier options, mellings being up there too. I was still on a budget so i chose to gamble with a very reputable brand even though this specific part isn't the most reputable.
MMX has them for $500 for future reference (hopefully you won’t need them though).
 

RedSRT4Me

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2014 ram 1500 4x4 sport 5.7l hemi 8 speed truck 3.92 gears.

Thought i'd make a little post about my personal experience for those who are trying to do what i did and just want a very straightforward answer. I read a lot of different forums during my planning stage and found a lot of conflicting information so here is what i did and it works, the truck runs and drives good, just got it dyno tuned as well.

CAM
5.7l hemi with a 6.4l non mds cam (the one from the manual challengers). i've built quite a few of these motors, when the mds system works it's great, saves you fuel but it's one more thing that could go wrong so save yourself the hassle and just get rid of it. CEL will be on for your solenoids obviously until you delete it but it shouldn't affect your drivability, it didn't for me.

SPRINGS
6.4l hemi apache springs with the factory 5.7l sized shims. The shims aren't required if you don't plan on living way up in the rpms which unless you're racing you probably won't be, but leaving the shims in or replacing them with new ones also doesn't hurt anything so that's what i did because it just made sense.

LIFTERS
I personally chose to get my non mds lifters from comp cams, not the most expensive but definitely not the cheapest. Don't cheap out on lifters, you get what you pay for and you might end up paying for another new motor. Also required is non mds lifter trays, they are different and you will need them. Also have a mellings high flow oil pump for better idle oil movement.

VVT LIMITER/LOCKER
Didn't use one, don't need one. If you put one on you'll make just as much power as stock if not even less actually. The 6.4 cam is very mild, it's an upgrade but not crazy enough to warrant a limiter.

HEADERS
If you're doing all this work anyway throw headers on the truck, currently i only have shorty headers running back into the factory cats, which isn't the best. Ideally use long tubes and highflow cats or no cats. I'm also using the factory exhaust gaskets with the built in heat shield, remflex gaskets are also a good choice, personally i didn't want to gamble with the gaskets that came with the headers and have them leak after a couple thousand miles. I also put heat shields on my knock sensors (mopar sells them) because the headers sit really close to them.

DYNO RESULTS
Mopar claims 395hp to the crank under perfect conditions, if you account for the roughly 23% loss through the drivetrain that's about 304whp again under perfect conditions. I ran my truck on 89 octane with 33x12.5r20 tires. This is a freshly rebuilt motor with 1100km on it, it's not tired and worn out. First pull made 270whp i don't remember the torque. The Final pull made 303whp @5800rpm and 335lb-ft of torque at it's peak.
I'm aware that these motors with the modifications i made can safely rev over 6000rpm and probably make more power, i'm not a tuner it's not my expertise so i let a reputable shop do the tune work and what they did is what they did. It gained pretty much exactly how much power i thought it would, just the numbers i got were lower than i expected. If anyone else has done this exact setup on the same truck and has dyno results i'd love to hear about them.

EDIT
I suppose i should mention the truck was never tuned to make the absolute most amount of power it could possibly make, my AFR was all over the place so that got cleaned up so the truck runs smooth all across the board and had my shift points adjusted. It shifts nicer and gets just as good mileage as stock with more peak torque which is great. When i deal with my cats and throw long tubes on maybe i'll throw 94 in it just to see how far we can push it (without blowing it up hopefully) because it's hard to go crazy with timing when you're running 89, most of the time i've actually only got 87 in it so. It's built to make more power but is just tuned pretty conservatively. Overall i'm still satisfied with where it's at for what I did to it and 100% do plan on doing it again with another truck in the near future.
Any chance you have the graph to post?
 
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