Interesting numbers...but even if the spacer does not work well with the '05 engine, that thing still dynoed pretty darn close to the '03 with added mods.

Lou, did the '05 have anything else or just the spacer?

 

Hi Lou,
This is not true. The spacers equilize the flow.

I flow benched it myself. Within the first 1/4" of lift, the flow is as equal as it will ever get. And what I found on the bench is also consistant with Bernoullis equations. If there is any mismatch in flow, it is a result of differences from within the runners. (IE not above the runners) At least that is what I found in my testing.

Additionally, as long as the pressure drop above runners 1&2 is adressed, the plenum slope can be used to advantage. -maintaing a constant flow velocity.

As an example. Consider industrial size air conditioning ducting. Notice how the ducting gets smaller and smaller in diameter with each consecutive outlet vent? This is to maintain a constant velocity/pressure of the internal flow. This allows each vent to have the same pressure and flow rate even though they can be a considerable distance from each other. Constant velocity equals constant pressure. (Bernoullis equation)

But Bernoullis aside, its what I found when I tested a range of spacer heights from 0" to 1.5".
1/4" was very nearly the same as 1/2" or 1.5" in terms of pressure drop distribution. I did this about a year ago, and if I remember correctly, there was only about a 2" water column difference between the 1/4" and 1/2" spacers. And a 2" water column is practically "Zilch" for pressure.

I just wanted to let you know. No flames or anything.

Tony

 

From what I understand this will be soon.
Have you seen THIS THREAD

LOL... ahhhhh the mushroom method

 

No, This is the only camparison I have, and I think it is valid. It shows the power I am making in the low and mid ranges, and where the power is made on the newer RevUp engine. The Crawford would not lose HP in the new engine, if the spacer made HP.

Lou

 

Bonus = secret money! My RX-7 will be coming out of bonus money...might be tough to sneak that by though.

 

Never having run these tests, I am relaying on the information I obtained from Crawford. AAM must have come to the same conclusion, hense their angled spacer.

But whatever, I am convinced that the Crawford is the best solution for a replacement plenum, and would outpower the Motordyne. That being said, the Motordyne does indeed make power, is a great stealth mod, and IMO, the best of the spacers in the market right now.

Lou

 

And no gf does not know as this is coming out of my bonus hehehehe.[/QUOTE]

what??? you tell her how you spend your money??? What's this world coming to?...

j/k bro..respect to you and gf. Just breaking them a little...

 

Hi Lou,

Also, when I did my testing on the REVUP engine. It was pre/post and installed while still on the dyno. It was indeed a very tightly controlled test.

Trust me. I didn't want to see the results that were produced. I have no incentive (other than honesty) to say the spacers don't work on the REVUP engine.

I even did a few extra pulls because I didn't like what I saw. And this was at the Summer So. Cal dyno day with a bunch of people standing around.
But the results were the results. They don't work on the REVUP.

Tony

 

Would you be de-convinced (is that a word? ) if dynos showed the opposite, or is your mind "made up" no matter what data surfaces......

 

I've seen your plenum work on a RevUp engine, I'm not making that up. I saw six runs - 3 without and 3 with - All the same - All showed a 6 HP gain (242 to 248). Also read the post from ZXiMan in this thread:

https://g35driver.com/forums/showthr...ghlight=plenum


Lou

 

Lou,

Yes, I've seen thoes posts you refer to. But there is no mention of controls.
Be honest, was every reasonably controlable variable controled? What variables did you make a specific effor to control? How did you monitor them? How did you control them?

I can make a dyno say anything I want it to by fudging (or ignoring) the right variables. There are way to many to list.

And as the manufacturer of the plenum spacer, why would I ever want to not show a HP gain? I wanted it to show a gain! But I also have no (ethical)incentive to create fake gains. I could sell turbonators if I wanted to go the snake oil route.

I performed the most controld test possible to provide the most accurate results with the highest level of confidence. I also did it in front of a large audience. The true results were (are) Zero.

BTW I was kinda hoping you would reply to Waynes post.

Peace,
Tony


---------
LOL!!! The thought just hit me... I think this is the first time I had to defend a claim where I said a spacer didn't make gains! Somebody pinch me!

I must be in the TwilightZone!

.

 

---------
LOL!!! The thought just hit me... I think this is the first time I had to defend a claim where I said a spacer didn't make gains! Somebody pinch me!

I must be in the TwilightZone!

.[/QUOTE]


Tony
that's what you get when you are involved in the "MAFIA"
Your never right, nor wrongcool:
Pasta