The Major FLAW w/ 392 Manifolds
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- Опубліковано 26 вер 2024
- 6.4L 392 intake manifolds have active runners which is something that many 5.7L v8 hemi Charger RT, Challenger RT, Durango RT or Jeep owners upgrade to. If you're looking into getting an upgraded manifold like 6.1L SRT or Edelbrock make sure to consider a 392 Manifold but watch this 1st! The active runners in the 392 manifold go from long to short in the RPM range which creates a flow in performance. You will find this 392 intake manifold on all Scatpacks, 392 Daytonas, 392 SRT's & 392 T/A on the road.
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Where in NY state can I go to dyno tune my 2019 Durango RT?
Price vs performance it's better to do just a bolt on with the 6.1 instead of messing around with the 6.4 because there is literally very little difference in power between the two. Like 2-3hp👌
Did you find a Tuner?
I like the layout with info and timestamps. Really thoughtful for the viewers. Wish more ppl did that
I try doing that when the video title/thumbnail topic isn't addressed within a reasonable time in the video. I appreciate the support
Exactly!!! And this channel has so few subs it blows my mind great content great editing and an honest guy I wish him the best
The education. The knowledge. God tier. Great vid man!
hahaha you the man! Thank you for always supporting buddy
Always like when videos have the time stamps! Straight to the point if that’s all I clicked for. Keep up the good work 🙌🏻
Thank you for the support. I will try including more time stamps so people can get to the topics they prefer to listen to.
The manifold for the 6.1 is heavier and was one of the reasons that they went with fiber on the 392 in 2011, but the 6.1 is waaay cooler and the best-looking production mill built in decades. If you port them out well, it shave's some weight off
Yah most that select a 6.1 are planning on running a centrifugal forced air setup because of those advantages. I like the active runners but the 6.1 upside with forced air is the better option.
@@RTLife Oh so do most with the 5.7, prefer the 6.1 manifold over the 6.4 then ?
??
Great review! I love all the options you bring to the tabel and information that is brought up in the video. Keep up the awesome content.
Thanks man - Def appreciate it. These hemi's are so much damn fun.
@@RTLife no problem buddy. I'm having a great time following your content. And I agree, way too much fun!
4800rpm is the optimum transition point for airflow in the manifold. That's down to helmholtz resonance and the manifold design, displacement differences between the 5.7 and 6.4 don't affect it.
Definitely feel the difference in my Scat Pack since Ted tuned for the manifold. The smooth response through the RPM's is awesome. It just wants to pull and pull-it's begging for more throttle & less brake. lol
I need to take a ride in that beast! Ted def knows what he's doing. Glad he's working on my ride.
Good thing y'all are in NY. I've been trying to find a good tuner/shop out here in the desert without much luck. Everybody here is into ricers. ☹️
@@DJGRoc I'm in CT-left NY hated the laws and politics. Ted's 30 minutes away or I'd be hard pressed to find as good a shop as his. just lucked out! lol (Ricers you say?-must drive you nuts-gotten up here too they're OBNOXIOUS)
@@pmac5386 That's cool, & yes they are! Always thinking they're hot ish. Subie & GTI owners are cocky as hell! I still shut 'em down!!! 😜
DJ G-Roc those guys must all be cut from the same cloth cause they’re cocky little stinkers here too. I had one try to roll race me yesterday-it’s was so ridiculous I almost felt bad for him.
The 5.7 sounds good buddy! Yeah that dip is noticeable in my scatpack. I've always wondered what it was. Whe. You're on the drag strip it's pretty noticable
The good thing is it can be tuned out or at least made unnoticeable. Thanks man, def appreciate the support.
Nice to see what the tune did for the 392 intake! And the info is great to know!...well done👍
Thank you buddy! Def learning a ton along the way. I appreciate the support
Love the informative videos. Not really to much info on UA-cam about 5.7L's dispite them being so common.
Thank you - these 5.7L hemi's are great. def one of my favorite purchases
Tuning has many more benefits than just peak dyno numbers...
100% agree with that
What other benefits are there?
@@roshardglanville2903 the video clearly states that correcting the dip in power when the 392 switches from long to short intake runners is a big one. Other than that... overall driveability, throttle response, and (based on experience with the 6L80 in my Silverado) auto transmission behavior are the big hits. If you look back at the initial tune that was done on R/T Life's buddy's 2019 Scat... it didn't gain squat for peak numbers.
@@roshardglanville2903 Seriously-every car Ted's tuned for me is a completely different animal when he gives it back. It's so different I have to spend an hour driving them cautiously till I get used to the responsiveness. His "thing" is to make the entire experience of driving "Great Again" not just powerful but smooth as glass from 0-150.
Tuning is of utmost importance to drivability and performance.
Been waiting on this one!! Great video
Thank you - Glad this was helpful! I appreciate the support
Thank for the video, I have been a subscriber for and few weeks now and the information on builds is spot on. The gentleman from Genetti ( hope I spelled it correctly) is extremely knowledgeable and carries experience that shows in the videos. Look forward to the next one.
Yah Ted is the man, def nice having him drop some knowledge in these videos. He's been doing a great job with my RT. Thank you for the support! I really appreciate it man
I remember you talking about this after the install, it's good to know the 6.1 is a direct fit. I know exactly why you cut away for the cold start, the hood was open. I tried it before as well! Lol
hahahaha that's awesome! You caught that... I was going to leave it in for a laugh hahaha. Nicely done
@@RTLife lol Thanks!
Cant wait for the winter, get the best cold starts 🔥🔥🔥
The cold starts are pretty sweet but man I'm not looking forward to the cold lol!
@@RTLife 😃😃 def dont miss the cold lol
Appreciate the video. Easily the go to mods for bang for the buck is the intake manifold and headers. Probably wind up doing both. I’ve accepted this is a perfect daily driver and definitely not a race car. I was spoiled with a Buick grand national as my 2nd car at 19. Would love another, but it’s a death trap in a crash. Love the hemi sound. Just bought my second charger rt plus.
What do you think about Porting and Polishing the intake before it's installed? I'm an old hot rod guy and it just seems like an action that should be taken ( the unit is already off of the motor). That is something we used to do all the time.
Hey Rt life ... Can this be just bolted without the msd switch.. will it give any gains without an msd switch...
I wouldn't bother doing this if you don't install the MSD switch. The only reason to use this manifold is for that reasoning. You can go with a 6.1 or Edelbrock manifold - they're direct bolt ons.
@@RTLife any low end torque gains with a 6.1 srt intake manifold direct bolt on? Thanks for the reply
I m not chasing high speeds .i am after more low end get up and go in the city
I have a 2019 challenger rt and I just a 392 intake in but I notice my car has a shake to it is that normal and I was Also told I need a bigger spark plug put in
it shouldn't shake & no you don't need larger spark plugs. It's a direct replacement that needs wiring for the active runners inside the manifold.
@@RTLife ok I’m getting a p0303 code since I’ve put the manifold
So RT when are you going to port and polish your 392 Intake manifold.
We will see! def would bump up the air flow
@@RTLife Oh definitely RT.
@@CJColvin it's plastic so you can't polish it anymore than it already is
@@732Mopars True.
Wouldn’t do much unless the heads are ported at the same time and ports match.
Very interesting. I wonder why dodge didn't smooth it out from the factory
I was thinking the same. I've seen a bunch of other 392 stock dyno results on youtube with this dip.
Probably emissions
@Lon Denard only thing is that it makes it rich. So not as fuel efficient
Nice now I have some info to share with the tuner on smoothing out the runner where it drops on when switching to short runners
Glad this was useful! I appreciate the support
@@RTLife Always brother I got a major project coming I'm actually going stroker kit for real this time my mind made up total cost is gonna be 12k
I want three spoilers now. 👍🏻
hahahahaha! How funny is that?!?!
LMFAO!!!!
Looks ugly to me dam why put a wing infront of a spoiler
Just wasted all my money and time fully modding a 2012 dodge challenger rallye redline 3.6 v6 just to end up with the same dam 3.6 v6. I made it sound meaner and more like a v8 but besides that i could of just invested into upgrading to the v8.. everything i could do to that engine and body i did... freaking ended up still around the same 0-60 and the best thing that helped my car was resetting the computer thing by pulling the fuse for 30 minutes then after setting car to run but not started flooring the gas for 20 seconds then as slow as possible letting of the gas and turning it off. That made a huge difference and really woke her up like new
I love the new Dodge tech. I'm saddled with a RT Dakota 98. I've seriously modified it. Dreaming of a RT Challenger
You will get into that Challenger! Thank you for the support & keep on enjoying that Dakota.
8:07 omg why.....🥺
hahahahahaha
Take that shit off. My god, the shit people do to their car.
Man 8:07, they should have that challenger taken away from them! How do you and why rice up a muscle car!
What? No stickers?
@@Kuhladestkyicky wtf do you mean what?! They have 2 spoilers!!
My RT did 360hp on a dynojet. Had e50 or e60, full srt exhaust & hellcat intake.. i just installed the 6.4l intake. Havemt tedted it yet. But taking it to same dyno when they come back.
I couldn’t pull the trigger on something like that especially since it comes stock on models like the 6.4 Hemi’s. If going with an aftermarket manifold I’d go big with in mind of pro charging it but I also wouldn’t bother if you plan on doing a positive displacement supercharger(whipple) since the manifold wouldn’t be needed. Just depends on the way you wanna go rather than having to reverse it. Although It would be cool to see a build with a billet Frankenstein manifold on a HEMI, those look awesome and do give you real gains when building an engine.
I think this is a no brainer for anyone that is looking to stay N/A. These combo of long/short runners really improves performance all the way around not just peek power.
R/T Life sorry not sold on it for the minimal gains but I gotta say no one else has dove into this like you have so thank you for the content and info on this, if I was doing even a pro charger I’d probably look into manifold swaps but I’m leaning more towards a whipple so I wouldn’t need it. Just depends on the route you really wanna go and it does get to a certain point of decisions like that otherwise you’re gonna go backwards to get more hens money lost. Gotta think of it like a mod tree not a list lol
I just got my hands on a 6.4l this past weekened & was waiting to put it on once i got tuned, but im guessing ill just put it on once i port it.
Cant wait.
Awesome R/T Life《☆》Interesting stuff :*: Nice that your able to adjust for the dip🤓☻🤠
Yah a little tune adjustment & that dip is gone. Thank you!
Just a thought , u ever think about doing a black bad b5 blue spoiler or wicker bill would make ur car sicker if u think so
I really like the look I have in the back at the moment. Maybe down the road - but this is much different then what everyone else has.
PLEASE READ BRO!!!
I am so interested in seeing what an "independent throttle body (itb) manifold" would do for the hemi (specifically for my 5.7 ram) and I am not finding anything informative. I found a setup for sale online for a 6.1 hemi and I would love to know if this fits my 5.7 as well if I get the proper hardware for install.
I love your channel man, keep putting out the great content! 👍
Holley now has 2 sniper sheet metal intake manifolds for Gen 3 Hemi.
Do you have a link? All I see are LS intakes & ram intakes
So far proven to be garbage. For fi the 6.1 is superior to all but a drag pack/sheet metal. Some canned cars will do better as well with the 6.1. For my 426 with heads and cam , I picked up about 28peak rwhp and lost about 4rwtq ( but my curve was flat as a table!!:)) by swapping from an srv(6.4) to a ported and matched 6.1.
Great informative video as usual thanks, man that exhaust is wicked love it!!
Thank you very much! Def learning a ton along the way. These Mopars are awesome
Definitely look at changing the throttle body going bigger I spoke with Kenny bell when discussing the blower it starves for air in a certain range
When I go forced air, I think I'm getting a hellcat throttlebody. That thing is massive 92mm
A kid 23-24 years old just started at my job in march,I noticed about 2 weeks ago he had a new car(new to him) He got a white 2017 charger RT.so we were talking and I said if you ever go on UA-cam check out R/T LIFE ,and he said he bought hit RT because of your channel LOL.
haha that's awesome!!! Just doing what I can to show how much fun these things are. I appreciate the support & you spreading the word. That's great.
Yea I I figured you would like to hear that...
I suspect the reasoning for that factory calibration is to keep it from downshifting and changing the runner at the same time for improved driveability (full throttle pull)Basically never gonna see that rpm window unless its partial throttle of forcing it to be in too high of a gear (road track) thru a turn.
Recommend doing a running pull thru the gear shift and see the window its using.
The early v-tech days the honda guys would set them to come on too high. It would spin the tire on transition .
With 392 intake will it support a bigger cam? Nothing super crazy like comp cam 274 just something a little bigger that stock so there isn't so much tuning
You shouldn't run into any issues. This intake manifold is a solid upgrade
You are aware, that if you would have swapped to a truck 5.7 intake manifold, you would have gotten the active runners as well, right?
I love that you put time stamps man! Also will this swap work on my 3rd gen 5.7?
I heard it does work but you need some kind of work around or adaptor. Thanks man for the support
John,. did you do the 392 mod?
work around or adapter for? thanks
@@corporateair4853 not yet but I’m getting the stuff together. I’m just swapping out my 3rd Gen heads for 4th Gen heads and using Hellcat exhaust manifolds.
@@John-4649 Thanks .. yeah I have been thinking the same thing about the heads but have not been looking for heads yet.
Have a great day R/T Life! 😊
Right back at you! Thank you for the support
Interesting info on the dip. First I’ve heard of this! At least it can be tuned out but great info to have going into the swap.
Hey!! Whats up buddy, how's it going on your end? Yah def glad mine was smoothed & tuned out. Kind of surprised it does that out of factory though.
R/T Life things are good here. Trying to find time to start making videos again. I say that every few months then get lazy lol. Yeah that is crazy it’s like that from the factory. After you and Build-It did the manifold sway I was all on board, but I unfortunately have some other issues I need to address before I get back to the performance mods. I’m very much considering it though and see them selling in the $300 + shipping range on FB. Very tempting!
Can you do a video on mpg bro?!?! I know it’s weird but bad gas mileage is a factor in these cars
I wish I could - this RT doesn't really do much other then drive to meets now. I don't really commute to work anymore
R/T Life you could talk to the bros that do daily their cars. Or even your experience post mods 🤷🏾♂️ just and idea because my lightly modded 06 RT gets 13mpg on a good day. A really good day
He I have 5.7 VVT what are all the parts I need to order...and I've seen some installed without the MSD(will that make a bug difference)? I just want to maximize and do everything correctly to get the best performance out of my Magnum.
There's always room for improvement with any mass produced car. Thus, you are not getting a race tuned exact car. You guys killing me. My Daytona 392 is a monster and I have no complaints.
You're right about that. Keep on enjoying that 392!
When you put your car in track mode that’s exactly what you’re getting track and sport mode are different tunes Basically
Can I use it on 3rd gen ram 5.7? I know must use it on newer Hemi and on chargers but haven’t seen it on older Rams.
Couldn't you just set the long/short runner switch at a much lower rpm so your not in the power when it hits
You need to pick the RPM where the transition of air flow is seamless to prevent a dip
I learned a lot. Thank you for this.
I appreciate the support! Glad some of this is helpful
What about the Ram 5.7 intake? i've read that's where the extra 25ish hp comes from. And doesn't it also have variable intake runners? I don't know $1000 is a lot for an intake and i've never really liked the variable runners. Just more Togo wrong and for the extra 20-25 hp i'm not exactly sure it is worth it. i'm sure you could get some good gains by porting the 5.7 intake and tuning for it.
yah the ram also have the active runners as well. Believe me 20+whp throughout the RPM range is bigger then you think. I thought the same. The $1000 includes install, throttle body & intake upgrade. I'm sure many others have done it for far less
@@RTLife the fist thing i'm doing is a cam and valvetrain upgrade. i'm not taking any chances with those stock lifters. Mopar sells Scat Pack packages, stage 1, stage 2 etc through the dealership and if you have it installed buy a dealer will not void your warranty.
www.moparproshop.com/inc/sdetail/11433/11447
From what i've read the cam is basically a comp camshafts 270.
This guy has it & loves it ua-cam.com/video/veQYMyzCA_8/v-deo.html
@@ryotaryuu that pack doesnt even come with lifters lmao
Back when you originally did the intake upgrade what cam were your running then? Did you end up having to upgrade valve springs? I got a 2012 Challenger R/T w/ 6 spd. Will be doing cam intake headers over the winter. I'll be looking into the tuner you used for your stroker kit in Waterbury. I live like an hour from there. Thank you for your channel. Very informative.
I think I may go with the Victor Series. just because I can do the swap myself...
yah it's nice to have a direct swap - that wiring is a lot!
Look at Team Mopars vid on the 6.4 swap. Helped me out alot with the wiring.
Are the head intake runners the same size? If not you need the 5.7 to 6.4 intake manifold conversion gaskets
Yes the runners all line up properly.
So you need to change fuel rail and injectors?? If you add a 392 on the 5.7
no - I only did it because it came with the manifold.
I want your opinion...
I got the 6.4L Daytona 392 Charger. I went and got a muffler delete with 5” exhaust tips. And stock cold air intake.
What else (if anything) can I, or should I, do to my engine/exhaust for performance and power?
I was advised that the 2019 Daytona is pretty damn good as far as exhaust and didn’t really need anything else...
What say you?
R/t life what would you recommend for the higher end for better performance instead of the 392?
@8:10, he didn't put 2 spoilers on that Scatpack?
I was stumped when I saw that hahaha
LOL!
How is it a flaw if it can be tuned out?
Tuning should be considered mandatory with any major part swap.
Comes in all 392’s
Good video. The only thing you didn’t include was the fact that the 392 manifold needs a new air filter system.
Also - are those wheels just the stock hellcat wheels? And did you use spacers?
@3.05 I lightly hit on the intake with factoring into the overall cost. The wheels are Hellcat replicas 20x9 in front & 20x10 in back. I needed to beef up the back so I could grip better.
@@RTLife thank you for letting me know. Sick car you’ve got there.
I’m looking at the 392 manifold update for my 5.7 Ram.
My daily is a 2014 300srt. I love the SRT platform but wish I could’ve had mine with the 8 spd like your charger.
What values did Ted change to smooth out the SRV transition? Thank you.
Those 2 spoilers together just doesn't look functional
hahaha I was scratching my head on that!
Yo dawg I heard you like to spoil 2 spoiler fun.
Put some wicker Bill's on there
Can this manifold fit 2006 Dodge Charger Rt
RT what up my man. Where did you get the blue strips for the font splitter? If you don't mind sharing?? Thanks man great video 👍
My buddy @ScatpackDemon on IG gave me them. I have no clue where he got it. Shoot him a message
@@RTLife thank you so much. And keep up the excellent work man.✊
Any idea on how to tune the curve out? Fighting the same issue on mine now. Thanks
I have a nice 2006 Charger Daytona with a stock 5.7. I was thinking about putting a 6.4 intake on it but since mine is an older model I am not sure if the 6.4 intake will fit. Does anyone know if I can make this swap and if so what year model intake should I look for?
Just got a 2019 charger rt and looking to do upgrades of course. Would you recommend me getting the 392 intake manifold?
I think it was a nice upgrade - it will not add peek HP but you will see gains in the lower RPM's. BTW Congrats on the new Hemi
@@RTLife Aye thanks bro!!! You channel is amazing and question I have about a 5.7 is right here
Wait so did i read that right? with the 392 intake you gained 47whp and 36tq? thats impressive!
NO NO - def not that much. At best it gain 20whp under the bell curve. It's a solid upgrade though for 5.7 owners
R/T Life how do u think the Edelbrock would compare?
@@stews7 the edelbrock would help alot more with boost or nitrous just like the 6.1 intake manifold. The point of the 6.4 swap is to gain low end tq that was lost from the cam swap not really high end numbers. If you plan on staying N/A go 6.4
Saul Cruz I’ve read similar comments to that about the Edelbrock. I just was RT re reading a Hot Rod they used one one on a twin turbo 6.4. The wiring just makes me uneasy lol.
@@stews7 the wiring is ridiculously easy lol. Dont let it intimidate you at all. There are a few how to videos that guide you on youtube if you search it up
Yo do you have any spacers on your rear? i wanna know if i should get spacer to get some 315s on the rear of my scat.
I have 5mm spacers all around. Many don't need the spacers because the rims offset is different.
I have 315's on my Chally with no spacer. The rear wheels are 10.5" wide, & they fill out the rim better than 305's did. I've also noticed that different brand tires fit differently, since I go through a pair every 6 months or so.
Will the 392 manifold fi a.c300 2006
Where did you get the manifold from ?
So the MSD box is required, but the fuel rails and injectors are optional correct?
I wouldn't bother doing this with no MSD box
I thought it was part of torque mgmt along with vvt timing.
Not sure why they've kept that in there.
I would like to get 392 intake but i might have to go with the edelbrock cus of nazifornia strict smog laws
It's tough being into cars in that state. I hear many companies can't even ship stuff there!
You should get the Carbon Fiber Viper hood .
yah it would drop a few LBS & bring in some cool air
I have a question if you can reach out
The Dip is the runner change.
The way your activating the runners doesn't work, I'm in the process of getting a system that will.
I tell you all/every time I see your videos. Your Blue car I'd gorgeous!
What kind of msd box did you use??
Where did you buy the intake and fuel rails ? I’ve been searching online
Awesome build btw
Can I cam a 6.4 392 without having any problems?
Many people cam their 392's without issues
Thx bro
Great job with the video 👍
Thank you very much. Def learning a lot
In which RPM should short runner activated ??
I believe mine is set at 4500 range
@@RTLife what if i have a procharger then ?( same as your car mods )
You have come.long ways almost 40k subscribers reason great content I hit a milestone to 35 subscribers lmfao btw
Milestones are milestones! Congrats buddy & thank you for supporting the channel. Def learning a ton along the way
Dealer did a software update on mine to correct the intake runners
Great video ...
Thanks man! Def learning a lot
What rpm are you set to shift on your msd ?
I have to double check that - Ted change it while dyno tuning it
@@RTLife could you possibly check and let me know ?
@@saulcruz9024.. I think its normally 4500 rpm . but I hear people going lower
@@Postofficejoe I have mine set at 4,600
@@saulcruz9024 ...yea 4600 is what I read on the forms, but some argued that 4500 was better, I'm getting one very soon and I asked my mechanic if I should go 45 or 46 he said lower but didn't give a number...should be interesting what he will set mine up at...?
The wing on the plum challenger lmao rice
I couldn't believe I saw that
There is no "major flaw" in that manifold. In fact, it is innovative. The only problem, if there really was one. would be the transition from long tube to short tube. As your dyno guy said, that dip during transition can be turned out. If there were a major flaw then why did you install it on your Charger.
🙄
Good info man. 😎👍
Thanks man - def learning a ton about these cars!
@@RTLife glad you are willing to share your developments. I have a 392 manifold ported and ready to be installed. Have the active runners as well. Im waiting for my guy to come back into town. This is definitely good to know info
Okay... Who's the one with the double spoiler? I know you're on here 🤣🤣🤣 just why?
hahaha I doubt the owner watches this channel. At the meet I was scratching my head though! Wild what some people do
@@RTLife 🤣🤣🤣 well he should because I got questions.
What do you think about a 6.1L with 392 manifold?...
if you're keeping it N/A I would def consider it - if you're going forced air keep what you have on that SRT
Dam good info
Thank you
Nice Vid 👍🏻
Question
If someone was to for sure go forced induction, which intake manifold would be best and why?
I'm going with the 392 because of the gains I've seen throughout the entire RPM range. Having both long & short runners to me is a solid advantage. The wiring is why most don't do this. It's a pain in the A$$
Lots of people like the 6.1 intake manifold for boosted applications too
From what I've seen & read, a plastic manifold is good if you're staying naturally aspirated. If you're going to boost it, which includes baby bottles, you're better off with a cast/forged manifold. Reason being is the added stress/pressure when you add the boost.
wow... Those two spoilers should have come with a warning may cause severe vomiting
hahahaha
Can you list what you need to do this intake manifold swap???
Would yall get a 6.1 or 6.4 manifold??
Those Manifolds are $400 anymore!
Back when I did this they were much cheaper. I guess many people decided to give this a try
Dyno runs with the hood open are not real real world tests unless you drive around with your hood off. Try a closed hood run for real results and you will see a actual result !
dyno runs are just a measurement tool to see mod to mod gains - the hood is open for all the wiring needed. But the variables need to remain the same from run to run to see gains.
@@RTLife : Do you think your engine is going to breath the same with the hood closed ? Trust me try it. I've been at this for many, many, years !
Hey am doing the same thing on my 07 R/T . And need some direction where can I get that msd box🙏🏼pls can you send me a like thanks awesome car and great content 💪🏼💪🏼💪🏼thank you for the knowledge you give us appreciate it.