RJC AD Power Plate

It's just a six

It's just a six

Super Member
Hey guys,

I have heard from some of you that are putting out good power w/the stock Sy/Ty intake manifolds have problems w/certain cylinders running lean.

I forgot which one/s run lean, but I got in touch w/Jason who makes these power plates for the Buick GNs & T-Types that will equal airflow to all cylinders said he would like to look into making them for our Sy/Ty engines.

Example: http://rjcracing.com/product/airflow-distribution-plate/

Address & Phone # RJC Racing • 643 Crestview Dr. • Tooele, UT 84074 • PH:435-882-2839

He would need the intake manifold, intercooler, TB., & bare cylinder heads to do some R&D.

Let me know if any of you guys would be interested in having Jason making these power plates,

We would need the parts as mentioned above to get this done.

Who has spare parts they would be willing to send to Jason?

I might be able to get some of the parts.

Let me know.

Thanks
Rick
 
Beavis

Beavis

Still plays with trucks
Re: RJC AD Power Plate

It looks like a really good alternative to an intake swap. If I remember right, the back 2 cylinders are the lean ones. So would it be different for people with BBK & RPM & ASM throttle bodies? Or is it because we all use the same upper and lowers.....
 
dgoodhue

dgoodhue

BuSTeD 4.3
Re: RJC AD Power Plate

If he makes one, you count me in right now.

Would we get our stock parts back? I can help with parts or I can contribute $ for shipping.
 
It's just a six

It's just a six

Super Member
Re: RJC AD Power Plate

I do not have all the details as of yet, but, I would think we would get all our parts back, probably Jason would need $ to send parts back to the owners of the parts.

I would imagine having a larger or aftermarket TB is not going to change how the air flows through the intake manifold & cylinder heads.

I will get more info & details about the parts we would send Jason.
 
RenzFab

RenzFab

sales@renzfab.com
Re: RJC AD Power Plate

well guess i gotta let this cat outta the bag...but i've been working on this product. I've done a bunch of preliminary testing of stock airflow and gone through testing of 3 iterations of different style plates and have been getting closer to fairly equalized airflow.

The kicker for now is that i'm not measuring under pressure / boost situation. I have however been in contact with some flow engineers who are going to work with me to setup computer modeling to be able to test my design(s) to find out what works the best and to also see how similar non-pressurized flow through our intakes is to pressurized flow.

If Jason is going to go ahead and try to design something i obviously won't attempt to stop him...but he will have a competing product on the market. And if he is going to try to take this on then i will speed up my testing and get some testing products out there prior to the computer modeling, to try to get some real world data.

This kind of sucks becaise i really wanted to get the testing done before announcing it since people always bitch that things take forever after and idea is thrown out there to ponder.

Anyhow...curious to see where this goes. And it does light a fire to get more done on this. I'm on the road right now but will share more details once i'm home and can take pictures of what i have. Guess i'll start my own thread and just open up my research to everyone.
 
sharkbait

sharkbait

New member
Re: RJC AD Power Plate

RenzFab said:
well guess i gotta let this cat outta the bag...but i've been working on this product. I've done a bunch of preliminary testing of stock airflow and gone through testing of 3 iterations of different style plates and have been getting closer to fairly equalized airflow.

The kicker for now is that i'm not measuring under pressure / boost situation. I have however been in contact with some flow engineers who are going to work with me to setup computer modeling to be able to test my design(s) to find out what works the best and to also see how similar non-pressurized flow through our intakes is to pressurized flow.

If Jason is going to go ahead and try to design something i obviously won't attempt to stop him...but he will have a competing product on the market. And if he is going to try to take this on then i will speed up my testing and get some testing products out there prior to the computer modeling, to try to get some real world data.

This kind of sucks becaise i really wanted to get the testing done before announcing it since people always bitch that things take forever after and idea is thrown out there to ponder.

Anyhow...curious to see where this goes. And it does light a fire to get more done on this. I'm on the road right now but will share more details once i'm home and can take pictures of what i have. Guess i'll start my own thread and just open up my research to everyone.
Click to expand...

this may or may not be a silly question, but does this lean condition still happen with the forward facing sheet metal upper you make? just curious. im guessing its the stock lower intake manifold that causes the uneven flow/lean condition on some cylinders. correct?
 
RenzFab

RenzFab

sales@renzfab.com
Re: RJC AD Power Plate

sharkbait said:
this may or may not be a silly question, but does this lean condition still happen with the forward facing sheet metal upper you make? just curious. im guessing its the stock lower intake manifold that causes the uneven flow/lean condition on some cylinders. correct?
Click to expand...

my intakes have the baffle in the middle to HELP with the issue. No testing was done to fully verify that it's a big fix. It can't be worse, there's no way it could....i'll share the horrid stock condition measurements once i get home and get my sheet typed up

And nope its the upper intake that is the culprit.

the lower is just a straight distribution/channeling. The upper intake is what causes all of the air to go wacky. Let's just say that the results were way different than i was expecting.
 
It's just a six

It's just a six

Super Member
Re: RJC AD Power Plate

I have always wondered why nobody ever looked into doing something like this.

At the power level I am at, I do not think a power plate will make a difference for my stock engine. But , who knows.

The power plate has been around for years to the Buick GN's & seems to make a difference for the most part.

I would need to research a bit more if it makes a difference on somewhat stock Buick GN's.

I like the idea, if you can get the stock intake manifold to flow equally to all the cylinders, the better, I am all for a stock appearing engine that kicks butt. :tup:
 
MRKING

MRKING

New Parts for Old Trucks
Re: RJC AD Power Plate

Isn't the air distribution problem in the lower intake different at higher and lower boost levels ? The upper side loading the lower to accommodate the stock intercooler location definitely adds to the problem as well .

Can a single part solve both manifold design issues equally throughout the entire boost range ?
 
RenzFab

RenzFab

sales@renzfab.com
Re: RJC AD Power Plate

It's just a six said:
I have always wondered why nobody ever looked into doing something like this.
Click to expand...
it takes a lot of time and research basically. thus why i have only told a select few about it to bounce the idea off of mostly. I'm doing my testing via the intakes only - no ic, no tb. i don't see why he would really need the intercooler unless he's trying to introduce any swirling that may exist. But i have a spare IC sitting in the shop so i can easily bolt it onto the rig and see if the flow changes at all. That would be a cool thing to see actually, compared to no tb/ic. Also...we can finally test the stupid throttle body air foils.

i'm not going to do all that for the computer model all of those items as it would take way too much time/effort for most likely very little change. there is a lot to test in general if you sit and think it over. it's been a pet backburner project for years that i finally got into a couple months ago. i haven't spent more than about 4 or 5 hours on it so far...but i have a good start on it and was thrilled by the readings i was getting and how easy it was to alter the flow behaviors.
 
RenzFab

RenzFab

sales@renzfab.com
Re: RJC AD Power Plate

MRKING said:
Isn't the air distribution problem in the lower intake different at higher and lower boost levels ? The upper side loading the lower to accommodate the stock intercooler location definitely adds to the problem as well .

Can a single part solve both manifold design issues equally throughout the entire boost range ?
Click to expand...

my take on this is that the higher the boost pressure, the less of an issue it really becomes. Air under pressure is dying to find an opening to escape...so as soon as a valve opens it rushes through it. Obviously the modeling will prove/disprove this logic, but thats my pretesting theory.

all my testing so far has been at a single flow amount, i haven't varied it at all to see what happens. need the baseline #s and then will move on from there.

i really need to start my own thread on this and get out of this one.
 
It's just a six

It's just a six

Super Member
Re: RJC AD Power Plate

The TB air foils are not going to show much difference in a engine that air is being forced into it.

But it does when the engine is trying to suck all the air it can get.

Sorta of like a great valve job on a cylinder head will show great gains in CFM increase, but when you are forcing air/fuel past the valves, the gains are not as much.

A naturally aspirated engine is absolutly dependant on a great flowing cylinder head to make great HP numbers, Not as much when turbo charged.

Our stock LB4 heads suck a$$ as far as CFM flow.:rotf: Yet, they made 280 HP stock, only because it had pressureized air flowing through them.
 
Last edited:
MRKING

MRKING

New Parts for Old Trucks
Re: RJC AD Power Plate

It does sound like a lot of testing will need to be done in order for it to be accurate . I went back and read a lot of Gerber's old posts about what he had to have done to equalize the flow in his old stock intake . Switching to an entirely different manifold afterward leads me to believe the stock style just isn't intended to be used in the high hp application we desire it to work best in .

This does sound like a fun project.I know i wouldn't have the time to figure it all out though . Stupid airfoil is right .lol Somebody got rich of that idea at least .
 
alwayscode390

alwayscode390

pppssssshhhhhtttttttttttt
Re: RJC AD Power Plate

I was wondering if they had something like this for the SYTY's ... I have one and run it in my TTA ... I would DEFINATELY buy one , thanks for setting this up!!! :) ---
 
Darin

Darin

New member
Re: RJC AD Power Plate

RenzFab said:
my take on this is that the higher the boost pressure, the less of an issue it really becomes. Air under pressure is dying to find an opening to escape...so as soon as a valve opens it rushes through it. Obviously the modeling will prove/disprove this logic, but thats my pretesting theory.

all my testing so far has been at a single flow amount, i haven't varied it at all to see what happens. need the baseline #s and then will move on from there.

i really need to start my own thread on this and get out of this one.
Click to expand...

You are correct, however the intake still needs to flow properly. The air will take the path of the least resistance, under pressure or not. All that applies to a N/A manifold still applies to one under pressure.

With all the valves opening and closing under a set sequence, patterns will still develop as they would with a N/A manifold.

I hope I'm making sense. It's early in the morning :)
 
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