RJC Power Plate!

[Steve Wood]

Originally posted by Quick6

Originally posted by Steve Wood
The proof is in the flow tests and in the pudd'n.

Two tenths on a base test car in front of thousands by Nick Micale at the Nats plus the testimonies of numerous satisfied users will suffice for all but the eyeball engineers including the ones that may have five years of experience repeate three times

Ok, 2 tenths? But that does not tell the whole story, what were the MPH and 60 FT's of these runs? Lets see where the 2 tenths came from, were these back to back under the same conditions, was anything else changed like FP? the numerous satisfied testimonies have ranged from "it feels faster"? to "it idles better" just curious what it really does.

As I recall, there have been two cases on the dyno commented about online, and several other track results. If there had been 20 of each, it would make no difference. Some will look at it and find reason to doubt. That is human nature.

There are enough people with the plates now that are happy with them thru either empirical evidence or "feel" that the cynics no longer matter.

I have installed three of them and I am convinced that they work a lot better than the Hemco plenum that I bought when it was the rage. I have never seen any tests to demonstrate that the plenums actually improve performance other than the tests run by Jason that shows the PTE version actually has less variation than the others. Yet no one debates the merits of plenums.

The problem with the Power Plate is that it is cheap and it offends the eyes of experts. After there was enuf reports of improvement in, it was begrudgingly acknowledged that it might work on slower cars in the 12s but it would obviously restrict air too much to work on faster cars.

Jason won TSM at the Nats which was the most heavily contested class and went 9.96 with one installed. Maybe he would have gone faster without it. Who knows?

 

[strikeeagle]

Ever notice how bandwagons always have such bloody wheels???

 

[Steve Wood]

Somehow, I kinda doubt you have ever laid still long enuf to get run over!

 

[Race Jace]

Originally posted by strikeeagle


You are correct. What I meant by cylinder-to-cylinder EGTs is just that - 6 EGTs before, 6 EGTs after, with no changes other than the PP.


This will happen as soon as it is available from Steve. I am doing it for my own personal tunning issues. (there is no way i would spend $800 to just to sell one guy a plate for $59. lol)

here is the question. Does it really matter? When it has been dyno proven and track tested to absolutely increase HP. (not just feels but actual back to back tests)




So far as your orifice theory goes, you are not correct. The system downstream of the smallest opening, whatever it is, still imposes pressure loss, and that loss impacts directly on compressor discharge pressure, and therefore temperature. Whether we like it or not, this is an inviolate law of fluid dynamics.

Am I saying Jason's car would have run faster without the plate? No, absolutely not. I would have no way of knowing whether it would or wouldn't.


I have a way. How about when i did back to back tests with the plate in Las Vegas last November. I lost .15 taking the plate out.



Again, there is a growing body of evidence, if not a preponderance of evidence, that these plates work. It is the engineer in me that would like to know, and I believe given the nature of the product and it's influence on safe operation it's very important to know, exactly how well. Although clearly, no one is under any obligation to me to demonstrate it. I'm just tired of reading, "It's only 50 bucks" and "My car felt faster." These are irrelevant.

Funny how you always seem to ignore the actual tests and only seem to remember the "It's only 50 bucks and the felt fasters"

In BG the #1 and #2 TSM qualifiers and TSM finishers had power plates...
But that is probably just another coincidence, right?

Watch and see how many have them at the next TSM race .

 

[Nashty]

Here's some internet engineering for ya'

Air at the throttle body is much more laminar than it is as it makes the bend down. It will flow more because it is high velocity, low pressure air. As it enters the plenum it is breaking into non laminar flow but the air stream still has momentum and hits the back wall leaning those cyl's out. The plate is probably keeping this pressure lower above the plate and velocity up to some degree, as it goes through the plate, it is redirected and velocity goes up as it passes through, it gets below the plate and goes back to high pressure air, combined with all the eddy currents you essentially have a high pressure cloud of air available to all cylinders at a closer to optimum distribution.

I'd like to know how they arrived at the shape of the holes. What is the theory in that? The Hemco kept volume lower which had the effect of lowering pressure till it got lower into the intake too. My money is on the mixing of the air and higher pressure that makes it work.

I'm interested in MPH not ET. That's where the proof is. I'll be ordering one very soon to try for myself. Seeing 133 made me more of a believer.

Jason, what boost level and cam for your car? How much timing are you running and do you have any EGT's?

 

[TType85]

strikeeagle, you sure your not Red Armstorng?

Outside, after the tech session on wed at bg, someone asked Red Armstrong about the plate. His comment was, he did that years ago and was surprised when he ONLY lost 30hp on a 500hp motor.

I put one on my friends car at the nats. It was running 11.74@117.0 with a 1.8 60'. After the install it would go 11.71@117.5 with a 2.0 60'. thoes were back to back runs same boost, same FP, runs were within 1hr of each other, only change was the power plate. My problem is I was never able to get the nitto DR's to hook after the power plate install.

Does it work?

I'd venture to say yes.

Was it worth $55?

Defenatly!

BTW: Congrats again on the 9sec run Jason. What did you crank the boost up to?

 

[TurboD1987]

Funny how you always seem to ignore the actual tests and only seem to remember the "It's only 50 bucks and the felt fasters"

50 BUCKS!!!!!! then some guy and his old man with a leaf blower ripped me off at Bowling Green! Just kidding. I had a good look at your car there and that is not only 1 fast car but a nice clean car! Way to go on the big win!
Dave

 

[Race Jace]

Originally posted by Nashty
Here's some internet engineering for ya'


Jason, what boost level and cam for your car? How much timing are you running and do you have any EGT's?

26# on the 9.96, comp218 flat tappet, i try to keep it 1600egt. the 9.96 was at 1680 which is a little higher than i usually run.

car weighed 3600-3610.

 

[ttypewhite]

Race Jace- I bought that power plate off ya when I was in BG. I hooked it up and noticed major changes in my car. I have the Felpro Bank to Bank with the wideband 02 and my car always stumbled in regular driving when I just start moving from a dead stop. The power plate illiminated 90% of the stumbling and also the turbo spools quicker. Hp wise I don't know until I dyno the car, but she feels pretty damn good. I was talking to ya a bit on the Friday at BG when I bought the plate off ya and our setups look pretty close to each other. What turbo, cam and boost are you running to achieve these awesome numbers?

 

[Nigel]

Aerodynamics is voo doo. Absolutly no theory can top actual testing and measuring. The individual that can give the formula that defines with 100% accuracy turbulant boundry layer flow, airfoil characteristics, vortex ring state, or the formation of tornados, I will give a million bucks to. Where is the first F-14, F-22, V-22. Theory is just that. Real world data will develop the case in the end.

 

[elevensecgn]

I agree with Nigel, No matter what you can prove on paper, actual results are what count. Seems I remember a long time ago that a group of engineering students at one of the top universities had proven beyond a shadow of doubt that it was physically impossible for a bumble bee to fly. Guess it's a damn good thing bumble bees don't know that

Dwight Hayden

 

[Chris Taylor]

Dwight, I like a good laugh before I go to bed. I am still laughing. That is good about the bumble bees. I think that is the first time I have laughed all day.