[macncheese]

I'm not taking any sides or anything but 2 tenths is a HUGE difference... Probably about 5 car lengths. I'm not sure I can believe that. Was this just one run with each or was there multiple runs to assure consistency? I know when I started drag racing that I sucked so bad I could vary .4 tenths between every run

--
Cheese
who is still a pretty sucky drag racer

[minime s]

Been drag racing for years. I also have a 10 second Mustang. We were at Englishtwon last night. Same car, same driver, multiple runs. Actually we also raced 2 Mini's on the street from a 1st gear roll. One with each intake and then switched them and did it again. The BMP is opened in the back and allows the car to suck much more air.Your right in New Jersey and should come out to E-Town the next time we go.

[macncheese]

Well invite me!

--
Cheese

[Keith]

Just took another look at the Rogue setup. It keeps the bottom half of the standard air box which has an openning connected to the same plenum. The opening is somewhat over 1" in diameter. It looks like enlarging that openning would add power.

On further inspection, enlarging the openning looks easy. There is a hole in the plenum about 2" in diameter that has a rubber piece connecting it to a smaller hole in the air box. As the Rogue setup only uses the bottom half of the air box, removing this piece of rubber will allow the filter to breath directly from the 2" hole in the plenum. I will see how easy this is to remove when it stops raining.

Is this how the BMP filter gets its air? If so, this should bring the two setps in line with each other.

[Keith]

The rain stopped and I pulled that piece of rubber. The three heat shield bolts needed to be removed to get space to get a hold of it but it came straight out. It looks like the hole in the plenum is about 2-1/4" while the inside of the rubber is about 1-3/8". Removing it should make a huge difference to the air reaching the filter so I will see if my butt-o-meter can detect it. (I doubt my butt is callibrated well enough to tell the difference between the measured standard Rogue and BMP installations.)

[djafactor]

Thanks Keith, I should be getting mine next week.

More reasons why MINI2 is the bomb

Amit

[minime s]

Keith,

Not exactly sure where this rubber piece is your talking about ????? Any pictures or better description would help. I want to see if I still have it on with the BMP intake.........

Thanks.....

[Keith]

The bottom half of the standard air box has a hole at the back where the air comes in. This is about 1" away from the edge of the fresh air plenum which has the air intake holes at the top - these are the ones at the bottom of the widshield. The piece of rubber connects the hole in the bottom of the air box to a larger hole in the edge of the fresh air plenum. You would need to remove it if the BMP installation takes out both the top and bottom of the regular air box.

The Rogue installation leaves the bottom half of the air box alone so does not need to remove the short ruber connector. However, without the top half of the air box, it can take air directly from the fresh air plenum if the rubber thing is removed.

This picture shows the two holes and there used to be a short rubber connector joining them:


Just got back from driving around ... I may be fooling myself, but I am sure there is now more power after removing the connector!

[minime s]

It definitely can't hurt........the more air, the better

[djafactor]

The intake came in to my desk this afternoon. I couldn't resist the urge. I took a 15 minute break and went to my parking garage here at work to install it. WOW! Took Pepe for a little spin and you can feel the quickened throttle response. The supercharger whines so much more once you hit around 4000rpms. It's the kind of sound that gets you pumped. Driving around at normal RPMs its pretty much the same but once you get your foot into it you can hear/feel the difference. I also took Keith's advice and removed the rubber boot thingy. What a great mod a must have. I was lucky enought to buy mine off of minime S for a great discount, thanks.

One thing, you can do the entire job with a 8mm socket wrench (if you have one that fits on a screwdriver). The two torx-20 screws have an 8mm head along with the clamp supplied by Rogue (I think). I'm going to try to seal it better as it looks as if the newer model Intake from Rogue has a better seal.

Can't wait to get off of work!

[MiniVa]

Has anyone done a dyno with the 2" rubber plug and a dyno right after you take it out so we can see if there is in fact a boost in HP.

[macncheese]

You wont see dyno gains with or without the plug.

[Keith]

Quote:

Originally posted by macncheese
You wont see dyno gains with or without the plug.

Why so sure?

[Chrono]

so has anyone compared the rogue and the bmp once the 2" rubber thing was removed? better? worse? the same? anyone?

[Keith]

I'd also like to know how the BMP filter is set up. From the pictures, it looks like it might consist of a can that connects between the rubber pipe taking air to the engine and the same 2-1/4" hole in the air plenum that got opened up when the rubber thing was removed. minime s said the filters were swapped back and forth between cars during testing so the BMP installation could not have required bigger holes being cut in anything. My guess is a re-test is in order as they are probably now both breathing from the same source.

[macncheese]

Quote:

Originally posted by Keith

Why so sure?

Not that its better/worse but the nature of the mod wont show itself during a dyno run. Dyno runs dont simulate real world driving close enough to see realize gains from situations like this.

--
Cheese

[DaveNagy]

Quote:

Dyno runs dont simulate real world driving close enough to see realize gains from situations like this.

Hmmm, that's precisely the opposite of everything else I've read about chassis dynos. (ie. that before and after dyno runs, in conjunction with careful control of variables like temp and humidity, are the only way to quantify small changes such as the one being discussed here.)

Is your issue with the dyno something along the lines of "You can't simulate going-down-the-road
airflow closely enough"?

-Dave

[macncheese]

Quote:

Originally posted by DaveNagy


Is your issue with the dyno something along the lines of "You can't simulate going-down-the-road
airflow closely enough"?

-Dave

Precisely. In this case we're talking about a gain related to airflow outside the car (the air in front of the windshield). Heck, probably 50% of the dyno runs i've seen have been with the hood up! There was another thread today about airflow in the engine compartment and how it helps keep the intercooler cool. You're not going to simulate that on your run of the mill dyno.

--
Cheese

[Keith]

Quote:

Originally posted by macncheese


Not that its better/worse but the nature of the mod wont show itself during a dyno run. Dyno runs dont simulate real world driving close enough to see realize gains from situations like this.

--
Cheese

I beg to differ... This whole thing started with dyno comparisons of stock and two different intake systems. The differences found are real and significant so changes to one of the intake systems is likely to show further significant differences.

It is true that driving down the street and sitting on a dyno are different but the variations seen are large enough to suggest there will be a real-world impact.

Also, my now highly callibrated butt-o-meter shows that the measured hp increases do translate to real improvements on the street.

[macncheese]

Keith,
I think you're misunderstanding what Im saying. Im not arguing that you wont feel a difference, or that there isnt a difference. There is!
Its my opinion that the gains are due to concepts/situations that arent reproducable on a dyno.



--
Cheese