[sstman]

Hi I was trawling through ebay in the last couple of days, when i came across this :-http://cgi.ebay.co.uk/SuperMAX-35bhp-30-fuel-saver-for-Porsche-944-968_

Well for 99p, I was curious, and reading some of the 'theory' I thought I was worth a 'punt'. Well the item arrived today (very quick service), and its a piece of thin aluminium , cut very accurately, which you shape into a circle and fit into the outlet of the airbox before the Maf. It was a bit of a fiddle, but got it in snug, and took the car for a quick spin up the motorway. Well I still think there could be a little bit of physiological " it feels different", but there was defiantly an improvement on throttle response an 'seat of pants' power delivery! have I been 'suckered?, or is there some science in this idea?

Discus [img]style_emoticons/<#EMO_DIR#>/dry.gif[/img] !

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[Ryan]

I think it is right up there with the electric turbo-charger.

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[rhudeboye]

I cant pull up the page but I know what your speaking of. I've seen them before and always assumed it did no more then create noise as the air traveled through the obstruction (like screaming into a fan).

Good news is that you could test it. Sounds like it can be unattached pretty easy, so hook up a g-tech and do a few runs with and w/o it and see how things turn out.

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[Johannvb]

Tough call, I was wondering about the same thing a couple of months ago.

I can relate it to another bit of physics. When you fill a soda bottle with water and you turn it upside down, the water will run out in a jerky, glug-lug motion. You will notice the bottle gulping for air. However, if you move the bottle in a quick curricular motion, you will create a vortex which will empty out the bottle in no time flat without any glugging.

So I am thinking the same thing will happen to air that is swirling i.e the air should get to the pistons faster. So theoretically more air should be able to reach the combustion chamber with the vortex generator than without it.

I think the catch with this gadget is that the air still have to make a couple of turns before entering the combustion chamber and I think all those turns will lessen the vortex effect. Plus the air has to go around the valves, and I think that will destroy any vortexing still left.

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[sstman]

Well I have been very sceptical myself, but yup there is a definable difference, i pulled it back out, and car 'seemed' slower, so its going back in , but now wondering, if the very action of 'disturbing' all those seals from airbox, MAF, and throttle housing may be more effecting the 'performance gain' I dont have access to any sort of testing gear, so will keep experimenting. Oh the car is stock, apart from the K & N filter, cannot quite bring myself to butcher the airbox just yet, and my 'man' at the garage is against such stuff ! lol

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[kwikt]

Maybe you can borrow someones G-tech or similar and compare timed runs.

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[flash]

the theory works - throttle body spacers with "rifling" in them do much the same thing - i have a spacer in the denali and the low end torque improvement was very noticeable

whether or not this gadget works well is going to be determined by a number of factors, not the least of which will be maximum airflow through the intake - while it can crate a vortex down low, and improve throttle response there, it might present a flow restriction up top

testing needed

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[rhudeboye]

<!--quoteo(post=81272:date=Oct 6 2009, 06:39 AM:name=sstman)-->QUOTE (sstman @ Oct 6 2009, 06:39 AM) <{POST_SNAPBACK}><!--quotec-->Well for 99p, I was curious,<!--QuoteEnd--><!--QuoteEEnd-->

What or how much is 99p?

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[Fox944]

<!--quoteo(post=81302:date=Oct 6 2009, 04:21 PM:name=rhudeboye)-->QUOTE (rhudeboye @ Oct 6 2009, 04:21 PM) <{POST_SNAPBACK}><!--quotec-->What or how much is 99p?<!--QuoteEnd--><!--QuoteEEnd-->


British currency, about $155-$160 (u.s.) +/-

As far as this product goes, i'm not a believer. Its been available (for many diff. vehicles) for a while now and if it worked....most tuners would be using it. Most people i've spoke to who have tried it claimed no gains.

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[flash]

yeah - this could easily be one of those things that is very misleading - you may actually be able to provide gains in one spot - the problem is what it does to the rest of the curve

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[sstman]

<!--quoteo(post=81307:date=Oct 6 2009, 10:42 PM:name=flash)-->QUOTE (flash @ Oct 6 2009, 10:42 PM) <{POST_SNAPBACK}><!--quotec-->yeah - this could easily be one of those things that is very misleading - you may actually be able to provide gains in one spot - the problem is what it does to the rest of the curve<!--QuoteEnd--><!--QuoteEEnd-->

Well in this instance 99p stands for pence !! there are 100 pence in a UK pound!, so we are talking about $1.70 for this little piece of metal, so well worth a test I must say

Although the real usp for this gizmo, is the claimed improvements in gas milege, so with a full tank today, I will see how my weekly commute pans out mpg wise .

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[flash]

at cruising rpms it might actually help - theoretically it would densify the mixture by providing smoother airflow - i gained highway fuel economy with the rifled throttle body spacer

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[Cloud9...68]

Hmmm.... Come on, guys. If gizmos like this actually worked, don't you think they'd be under the hood of every new car on the planet? But at least it was cheap, so no harm done, in any event.

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[rhudeboye]

If you paid anywhere near $100 for piece of... meta, I would of requested for you to be banned.

For a little over $100 you can get a proven upgrade that will indeed increase your HP. Its the Stage 1 chip from RSbarn. Also a small device but packs one hell of a punch!

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[flash]

there are a number of reasons things like this would not be in cars - remember that cars are built to achieve a nominal condition - things like this can easily cause it to swing out of the statistical median

i'm not saying it does or doesn't work - however, the theory is sound, but the application is likely not as simple - it's also not new

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[sstman]

Guys , guys, get a grip !! this little piece of aluminium has cost me $1.57 cents!! in total !!! that is why I gave it the benefit of the doubt !! lol I work in the aerospace industry, so can understand some of the 'theory' that this product 'claims', and as I understand it , several luxury car makers do use this type of equipment in their engine intakes!, Jaguar being one that I recall. What I will do however, is let you all know if the gas miles is improved, as that is one of the claims given by the company, my car is a dd, and I cover 75 miles a day round trip. so let's see after this weeks tankfull .

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[flash]

i'm looking forward to seeing how it turns out

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[rhudeboye]

<!--quoteo(post=81349:date=Oct 7 2009, 07:30 AM:name=sstman)-->QUOTE (sstman @ Oct 7 2009, 07:30 AM) <{POST_SNAPBACK}><!--quotec-->Guys , guys, get a grip !!<!--QuoteEnd--><!--QuoteEEnd-->

Hey! This is what we do.

Its actually a good convo regardless of the $$ investment. I did a search for the item (as I couldn't pull up the link in post 1) and found the same question on other forums. They typically had about 4 replies that simply said "its a waste of money". No one said anything beneficial or backed there statements with... well, anything. Not very helpful.

I then found that this technique got its start in refrigerators and works quite well.

So now, I like Flash, am waiting to hear your results. I bet many of us are at the least a bit curious.

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[sstman]

Thanks guys!, It is fasinating that something so simple, could make any difference at all, but it's fun finding out!, just driven home now in thick traffic, and the engine is definitely 'smoother' low down, with more torque feel about it . I had had this car long enough to 'feel' a difference, and that's what is doing my head in !! ce la vie !

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[flash]

i fully expected to see an improvement at between 2k and 3k

things i'd like to see are how it responds to cold starts, and what it is like over 5k - this is where we might see problems with such a device

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