[s-cars] Dyno questions

[Mark Strangways]

See inline...


----- Original Message ----- 
From: "manuel" <manuelsanchez at starpower.net>
To: <s-car-list at audifans.com>
Sent: Tuesday, October 04, 2005 7:54 PM
Subject: [s-cars] Dyno questions


> S-Heads,
>
> I know there are varying opinions about dyno results, essentially that you
> can make a dyno say almosy whatever you want. That being said I am
> considering taking the car to a dyno. I haven't done this before, but 
> since
> I am about to install the New England FMIC I thought this might be a good
> time to get some data points. Each session would include no more than 8
> pulls.
>
> My current thinking goes like this
>
> Session 1
> Engine/Exhaust As Is:
>
> RS2 turbo
> RS2 Manifold
> Lucas Delphi Injectors
> Forge BPV
> Dahlback WGFV
> Mihnea Custom Chipset
> Bosch 3 Bar
> Stock exhaust w/ gutted cats
> No Undertray
>
> Session 2
> All the above plus
> New England FMIC
>
>
> Session 3
> All above, except I'll re-install the working Cats
>
>
> Rub Number 1
> Each one hour session will cost $200USD (this includes special $35 fee to
> set up Audi's because they are "more difficult to strap down" (is this 
> true
> by the way?), special fee for using their AWD dyno, and special fee for
> selecting the Air Fuel Ratio monitoring option)

Well, dynos are a great way to tune...
$200 seems a bit heavy for an hour of dyno time, but compared to the ticket 
generated by a 3rd gear WOT pull to redline. Well you do the math.
I don't really feel Audi's are any harder to strap down then any German or 
Jap mobile

>
> Rub Number 2
> 200 x 3 = 600 samoleans, thats alot of cabbage for me
>
It's a great way to tune your car and keep it tuned, add it to your mod 
budget.
I would sugest to the dyno company that you will be doing 3 dyno trips and 
see if they can bring the price down.


>
> I have some assumptions that I'd like some feedback on
>
> Ass 1
> I shouldn't see any peak increase in HP/Torque numbers due to the FMIC
> install, as the first pull, when the car is the coldest or should I say,
> the intercooler is the coolest, should be the same with either the stock 
> IC
> or the FMIC. The FMIC only helps keep the power Mihnea already programmed
> into the ECU a bit longer, hopefully alot longer. Is this right?

You should see some better numbers with a FMIC, you may find less pressure 
drop across it and it is simply more effecient than what audi installed.

>
> Ass2
> In order to see hp/torque gains with the new FMIC, I'll need to have 
> Mihnea
> re-tune the software with the FMIC in mind, as I hopefully won't see
> "ridiculous intake temps, we better back off" - Mihnea Cotet as before.
> Crazy?

I would also suspect that the simple addition of the FMIC should net some 
gains, again you may find some extra boost, and the charge air will be 
cooler and alow more timing to be used without the "ping"

>
> I asked if they could monitor intake temps pre- and post intercooler, but
> they stated that they don't have the equipment, but that I could buy a
> system for Innovate which adds up to another 600 george washingtons!
> Anyone have another, more budget conscious method of monitoring intake
> temps? I rember Mihnea just placing some bare wires under the samco at the
> throttle body, but then again, I was a little sleepy from the drive up to
> CT.

Them wires are thermocouples, and need special (getting easily attainable 
these days) meters to read them.
The VAG-COM and Shadetree hardware / software will read the temps AT the 
intake manifold with the built in sensor. No need for fancy indash meters 
unless you want the bling..

>
> So I've been Rubbing my Ass's alot over the past few months and I'm
> wondering if I've been working too hard. What do you all think? Is this a
> big waste of cabbage?
>
> Thanks
>
> -manny
> 95.5 S6 Avant
>
>
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