i am looking to up grade my intake. need help do not knew much about this subject. so help me to find a good air intake at good price.
who has what and how much?
how was instlation?

 

Unless you're planning to do extensive mods on your motor, pretty much
any short-ram intake will do the trick.

The Pilo intake can be had for $150 and installed within 30min with simple
hand tools. :smile: I looked at the other ones (alta, madness, rogue) they're
pretty much all the same. I might get a K&N cone filter later, but for now
the green filter is good enough. The pilo one comes with a cleaning kit too. :smile:

check them out at http://www.outmotoring.com

 

What kind of MINI do you have?

What kind of benefits do you think you will get from a new intake?

 

I have tested a total of two intakes (stock and Alta) and found that the Alta showed significantly less restriction than the stock one:



That's the pressure as measured between the throttle body and supercharger. The ~0.5 psi gain showed up as about the same gain in boost in the manifold. Other intakes may perform better or worse than the Alta, but I haven't seen any such data on them.

 

Andy, could you describe the experimental conditions used when you recorded the data in your graph?

Was the car under load, or in neutral.

Was the car moving or stationary.

Was the hood open or closed.

I'm interested in how close to "real-life" the situation was.

 

A few weeks ago I picked up the MINImania/K&N CAI. I am pleased. Easy install, fantastic sounds... smooth accerlation. As Andy always says.. show me the numbers. I do not have any numbers, but it feels good. If anyone else has any info or numbers on HP gains for the MINImania/K&N please post it.

I wanted to pick up the Viper Pipercross for my MiNI, but I couldnt get diamondracing to respond to my questions so I moved on... other buyers be aware.

 

I've commented before on my disappoinment after removing my Madness intake and after another 800 miles or so, I feel the same if not worse.

The car doesn't seem to rev as easy, whic to me equates to less power. The sound is definitely not as aurally pleasing and now it seems as if my mileage has sufffered. I don't have the OBC, but I averaged 500km a tank with the intake and so far without it, I've not even got close to 500km.

I don't understand it? Andy, Trippy, anyone--please explain?

 

Trippy wrote:These tests were done at WOT in 2nd gear from ~1600 to 7200 rpm on the same stretch of road, on the same day. The vehicle was moving. The hood was closed. I'd be happy to dig up the raw data if you'd like to see it.

 

>>These tests were done at WOT in 2nd gear from ~1600 to 7200 rpm on the same stretch of road, on the same day. The vehicle was moving. The hood was closed. I'd be happy to dig up the raw data if you'd like to see it.

Excellent. that sounds like a good experiment.

Were both filters new by the way?

I can imagine if a used stock filter was used and a new aftermarket filter was used that you could see this improvement just due to that.

My stock Cooper filter has 15,000 miles of crap in it, and I need to find a new one ASAP.

 

>>Trippy wrote:>>
>>These tests were done at WOT in 2nd gear from ~1600 to 7200 rpm on the same stretch of road, on the same day. The vehicle was moving. The hood was closed. I'd be happy to dig up the raw data if you'd like to see it.

Andy,
Do think the K&N Typhoon would have similer results?

 

Trippy wrote:
Nope, the stock paper filter had maybe 10,000 miles on it, but was in pretty good shape:



I had measured the pressure drop between the dirty and clean sides of the stock airbox at WOT, redline, 2nd gear as ~ 0.14 psi:

https://www.northamericanmotoring.co...amp;topic=8631

I never tried to make my testing past the rigors of the scientific method, just give me a good rough guesstimate of the types of pressures involved.

BuckeyeMCS wrote: I really don't have any way of knowing without testing it myself or seeing such tests from a believable source.

 

>>I never tried to make my testing past the rigors of the scientific method, just give me a good rough guesstimate of the types of pressures involved.

I think it's totally adequate for the kinds of answers we are looking for.

A 0.5PSI improvement in pressure drop sounds pretty minimal.

Is it worth $150? That's up to the customer I guess.

It's not worth it for me.

I need to do similar experiments on a Cooper to see if the situation is different.

 

Well, 0.5 psi represents about 1/60th of the total airflow in an engine that makes about 15 psi (plus another 14 and change ambient). That's a pretty decent improvement for an easily installed DIY mod.

Do you have a differential pressure gauge?

_________________
SHOW ME THE NUMBERS!

...How Fast is Your MINI?...My Mods...

 

>>Do you have a differential pressure gauge?

No. I was thinking about getting one (or more) of these guys for $20 MPX5050DP diff pressure transducer and recording the pressures electronically.

If I just get a handful of straight pressure transducers and tap in various places, what range of pressures do you think I will encounter?

_________________

 

I truly appreciate Andy's scientific approach to modding the S. Andy, what's your view on exhaust mods? Do you run the one-ball? Have you any opinion on the Scorpion? It seems to be priced with Magnaflow but quieter. No data is available. I'm contemplating Exhaust or something - urge to spend $4-500 or so for a change but don't want to waste it. Maybe the 19% and intercooler would be next, but should I do this with stock exhaust? Sorry if it's O/T. Didn't want to waste your insight privately.

 

Trippy,

Those transducers look very cool.

My Magnehelic has a range of 0-40 in. H2O with markings every 1 in. H2O . With your normally aspirated engine, I wouldn't expect to see absolute pressures much over 1050 mbar. There are roughly 2.5 mbar per in. H2O, so let's say a range of 0-1050 mbar or 0-420 in. H2O. Precision of 1 mbar should be plenty.

SteveS,

I haven't seen any pressure tests done on the various exhausts. I made about 5 whp over a very narrow range above 6,000 rpm with the Magnaflow compared to my stock exhaust. With exhausts, I'd try to get a ride in a car with one that you're looking at to see if the sound levels and tone are pleasant to you.

 

this is an interesting series of tests (even granting the dirt ingestion method).

http://www.bobistheoilguy.com/airfilter/airtest1.htm

based on the above (and another test with similar results, whose website i don't have now, but will add later), i keep wondering why the alta gives the significantly lower reading?

can a larger and different filter medium give this much drop? that's hard to believe.

given andy's small pressure differences in the whole stock inlet duct, and that the front inlet is the same, can you get this much difference from just cutting out the back wall and making the internal hoses a little bigger?

i've never been able to square the low pressure drops in the stock system with the alta numbers. thanks to anybody who can offer an explanation.

flyboy2160