[s-cars] An interesting FMIC "fact" (?)

[Lewis, Gary M]

Hi Scott, thanks for the reply.

> I've done a lot of testing on 
> RS2 with stock 
> cores, and I find those numbers to be more than a bit off.  
> That said, testing 
> requires that one somehow account for heat soak, or at least 
> stabilize temps 
> before actual measures.

It would be really great and whole-heartedly appreciated if you would share those stock IC numbers.
 
> The "most advanced kkk k26", does this have a map?  Have you 
> done any actual 
> testing of it to make sure that it's all you were told it is 
> *on* the 20vt 
> motor?  

'The "most advanced kkk k26"' *that mortal money can buy*.  I wasn't "told" anything in respect to my turbo WRT the Audi 20vt.  What I did was go look for an RS2.  No one had one, or even a facsimile.  So a kind lister suggested I go to Innovative Turbo.  The owner of Innovative has more Audi race stuff than I have ever seen in one place.  While most of his German car owners customers drive Porsche, he is personally committed to Audi (he owns a few).  He made no promises other than it would bolt straight in, and it would perform well at 26 psi.  Of the various race programs the compressor wheel is used on, for example, the 944t saw RWHP increase of 35hp from the turbo alone.  I know, 2.5l 4cyl vs. 2.22 5cyl.  See note below.

Yes I have tested it, that is why all the sensors are pre-IC.  And yes, I believe it is superior from .15m^3/s and above than the RS2 turbo as compared to the actual data vs. the RS2 map.  

Note to everyone, if you know turbo psi, air temps, altitude, and ambient, engine size, rpm and efficiency, you can easily calculate turbo efficiency.  Or send me the data, and I'll do the math for ya'.

> I'm not at all convinced that any turbo is 
> automatically better than any 
> other without some sort of measure of it at applied to the 
> 20vt.  A lot of 
> factors dictate the definition of that (dare I say 
> measures?), hence my 
> speciously applied commentia.  WRT "all the data that exist 
> WRT S4/S", I don't at all 
> think there is that much.  Eventually needs to be done?  Ok, 
> no problem there.  

We are still in agreement here.  If you have some data to share, I'd gladly take it.
 
> WRT reverse engineering.  Be careful applying any CO mafia 
> type as any type 
> of baseline, maybe if you live in CO.  Again, I only 
> encourage you guys to use 
> your own list to help your own list.  Other folks numbers 
> aren't yours yet.  I 
> enjoy calculations as much as the next guy, however, premise 
> and data are 
> missing from the arguments.  

In the case of IC efficiency, I'd think that anything the CO. boys do (at 5,000 ft) would work better for me (at sea-level).  Hap has alluded to this when he visits us flatlanders in the west.

>Spearco as expert testimony to 
> the UrS IC is ok I 
> guess, but only if you have sent out the URS IC to Spearco 
> for testing (they do 
> that btw).  Without that test, I dare say, what Spearco gives 
> you is the same 
> as Corky Bell gives you, very general guidelines.  Take them 
> and test what you 
> have.  That dictates need.  I'm still pretty convinced that 
> at 100USD/HP for 
> 8% might get me looking other places first.  Heck Corky 
> argues that a thicker 
> IC isn't an autogain (Hap) and that top and bottom feeders 
> are better than 
> side to side.  Both appear to have data conflict.
> 
> Argue that you "want" it fine.  Argue that 'data' supports 
> any of this, needs 
> more.  Increase of 'n' seems a good value.

If can provide your data WRT the stock IC at pressure levels above 23 psi, I think together we can put the data analysis to bed quite easily, and get on to good ole' CO mafia style integration and testing.

Thanks,

Gary Lewis

1995.5 S6 Avant, Green/Ecru, RS2 MAF, RS2 Exhaust Manifold, RS2 Injectors, Custom Turbo (K26 Turbine, Factory K26 Cold side (Audi Works '999' P/N) with 50mm intake and custom Innovative Turbo compressor wheel), TurboXS Type 25 Bypass Valve, Bilsteins, Eibachs, Big Reds, Spec II Clutch.