SureShot

To: Ted - Aaron – Mark - and all others who followed this thread.

After more testing: NO HIGH END gains. (embarrassing admission)

I was really faked out since the inlet & outlet were bigger, & the vane's larger area made it depress easier.
Low end pressure drop is less, and low end performance is better, BUT you hit a wall of pressure drop at 5K when the vane hits max.
There is an optical illusion inside that makes the max bore diameter look bigger that it actually is.
The max bore is exactly the same on the 929 AFM as the S5 AFM!
Same bore – bigger vane – that explains the increased air signal giving more fuel and needing –40% on the S-AFC.

There might be some benefit in a stock S5 NA with an S-AFC, but the turbo needs more top end flow.

I’m sorry it took me a week to sort it out.

mwatson184

Thanks for the research though. It's nice to see people trying new things.

jhammons01

OH NOES...................you didin't just say that did you??

first off, Sureshot, Thank you for actually doing some research and posting your findings. In the REAL WORLD this is how Science is handled. Chest pounding and Beard scratching is for........well, not me. Allow me to add that you are a man of integrity.

2nd, Sureshot, Please don't get discouraged. Your curiosity peaked a lively debate and it helped focus a few persons toward airflow restrictions and what it takes to overcome them.

3rdly, NZConvertable, most of the time you are a VERY good source of information. You have tons of technicle Data and I want to thank you for posting them so readily, also I'd like to let you know that I have learned tons from your post. This time, however, you are wrong. Iceblue nor myself said that ANY increased diamter of any given point would not increase power outgains. You're exhaust example is completley correct and why.............Becuase in your example the exhause is the restriciton but NOT the only restriction. So YES, in your example you would see appreciable gains that I myself have confirmed in other post of my own while talking about MY DUAL exhaust.

Sadly NZ you missed the point. I merely stated that the AFM in our systems was not the restriction. and that you could have a 55 gallon barrel sized afm and you would not see a gain due to the fact that (we all know) that there are smaller diameter openings found later in the flow line that restricts flow and thus the CFM/throttleing debate raged on. IN which case, in the end, Iceblue and myself were proven right by.............REAL WORLD RESULTS being reported back by a MAN with integrity.

Finally,

I know, that the first thing we do when we buy a hot rod is to buy a new Filter system for it. Right now the Soup de'jour is these little $150 Cone Filters for your car. YES, I believe that the best way to increase gains is to remove RESTRICTIONS one at a time.......but your AFM, as proven by SureShot, is not the restriciton. That AFM along with the Snorkel is so LARGE in ID and the actual intake in the IRONS is so small there is no way that the AFM and intake are the RESTRICTION that you need to address. What Tolstoy is saying that relates to us is this belief that the intake is the cure to our ills. That little cone filter ain't gonna give you any appreciable gains.

My belief is also backed up by Scathcart when he (while trying to discredit me) proclaimed that the Throttle Body was not the restriction and that it has been proven time and time again. OK, (I never said that but I'll use it) He is right the TB is not the restriction and neither was the AFM.

should I add anymore to that??? No, I think that will do...........

Icemark

Thank you for keeping us informed SureShot. As jhammons01 mentions... it takes real integrity to post results even if they are not what you hoped for.

Keep up the good work! and let us know your next project.

swoop

I think you all are missing the point. The restriction is going to be about the same no matter what AFM you put on the car. What Sureshot was trying to do is get an AFM with more capacity, so that it wouldn't hit 100% at only 5,00 rpm, because after that, the ecu can't actually measure the air coming into the engine.

He needs to find an AFM off a car that makes the hp numbers he is trying to make.

RETed

Wow, that must've been pretty hard to admit!

You still interested in getting the set-up on the dyno?
I'd still be willing to pay for it!

Bottom line would be to see if there are any measurable power gains?
Even though your objective testing seems to be conclusive, I'm still interested if there are power gains anywhere in the RPM band?

Props for seeing this one through!


-Ted

SureShot

So I'll have to live with intake air flow restriction at the AFM until (if ever) I get a stand alone.

I'm sorting out a combination of issues which are making my high end torque fall off.

The downpipe is installed.
Maybe a MSD is next?
(A bigger turbo is over budget.)

Anyway, maybe someone with an S5 NA that also has an S-AFC could use it.

jackhild59

iTrader: (7)

That being said...

(Followed by copious chest pounding and beard scratching, high and mighty literary quoting, claims of victory, gloating, and saccharine condescension ad nauseam)
Ayup.

And BTW, the guy REALLY proved right was RETed; his big ***** theory is exactly what Sureshot found to be correct with empirical testing.
SureShot then notices the big ***** during testing:

So, for all the beard scratching and chest pounding you did before and after the fact, we find that your reading comprehension is, (how did NZConvertible put it?, oh yes) as bad as your writing.

jhammons01

Jack, Who are you referring to here? I don't believe NZ was referring to SureShot when He mentioned reading comprehension. I don't believe SureShot has any problem with Comprehension whatsoever. You on the other hand do.

I looked through the entire thread to see if you brought anything to the table. Did Jackoff59 contribute any helpful information in this thread, and you know what I came up with?????

Third grade snipes and cut downs rivaled only by (who did you reference? oh yea) BEAVIS and BUTTHEAD.
You seem to be lost, take your third grade cut downs over to the lounge. Maybe if you raise your own personal bar up to the fourth grade level there maybe some in the lounge that appreciate it. This is the tech section where people learn about RX7s and the components that make them run.............So put the Bong down and re-read the thread and maybe you'll actually absorb something into your feeble grey matter

The sad thing is, even after all that I am sure that you (in your mind) think that somehow you did contribute to the thread..........

iceblue

I think someone should ban this idiot jackhild59

edit: ahh jhammons01 beat me to it.

Icemark

okay this thread is done... If the originator would like it reopened then he can PM a 2nd gen moderator.

Otherwise... thread closed!