Audi RS4 Upgrade Intercooler Kit from Wagner Tuning

Post by **rs-werkstatt** » Wed Jul 16, 2008 2:43 pm

TopBear wrote:Not wishing to be rude (or ignorant), but can someone summarise all the technobabble down into a sentence or two, illustrating the net gains for stock\tuned cars?

I will try that:

Pressure drop:
With these intercoolers, your turbochargers has to produce less pressure to have the same pressure as before (with oem-intercoolers) in the intake mainfold.

Cooler IAT:
Based on basic constitiunal laws you will have a higher densitiy of your intake air the cooler it is. higher density = more oxygen = more horsepower.

Post by **Jarv** » Wed Jul 16, 2008 2:51 pm

This is all very encouraging, and not wanting to put words in TopBears mouth, but I think he wants some statistics, i.e. comparitive figures between a stock car and one with your SMIC's on.

Post by **rs-werkstatt** » Wed Jul 16, 2008 3:05 pm

We made the IAT-temperature-test today and I have the results now. I will put them in a excel-chart and publish today in a few hours. We had today an outside temperature of about 30 degrees C. Perfect for that test.

Post by **TopBear** » Wed Jul 16, 2008 6:47 pm

Jarv wrote:This is all very encouraging, and not wanting to put words in TopBears mouth, but I think he wants some statistics, i.e. comparitive figures between a stock car and one with your SMIC's on.

Presactly

Post by **Lupo911** » Wed Jul 16, 2008 11:24 pm

Ok, we are moving forward...

here is a Test what Martin did today on the German Autobahn. He was logging the intercooler Temperatures. On the Driverside with the OEM and Passenger Side with our Intercooler. No Fog Ligths.

Outside Temperature 30Â°C

Datalogsystem IC in and out

and here a Comparison between the 2 Intercoolers at the same car...

Post by **Durit** » Thu Jul 17, 2008 10:38 am

was it a left drive car?

Post by **Lupo911** » Thu Jul 17, 2008 11:04 am

yes, LHD

Post by **Durit** » Thu Jul 17, 2008 3:04 pm

...gooood!

The left side intercooler (-> OEM) has a better front air flow (no oil hoses) than the right side one (Wagner), so the test is better.

Do you sell carbon fiber air ducts for oem IC?

Post by **Lupo911** » Thu Jul 17, 2008 3:21 pm

Durit wrote:...gooood!

The left side intercooler (-> OEM) has a better front air flow (no oil hoses) than the right side one (Wagner), so the test is better.

Do you sell carbon fiber air ducts for oem IC?

No sorry, we dont have them for OEM IC's...

Post by **Contigo** » Thu Jul 17, 2008 6:10 pm

3 pages and no talk of HP gain for 2000 Euro? Come on guys, what we talking here, 40bhp gain on Stock SMIC?

Post by **Lupo911** » Thu Jul 17, 2008 8:57 pm

Contigo wrote:3 pages and no talk of HP gain for 2000 Euro? Come on guys, what we talking here, 40bhp gain on Stock SMIC?

Thats not easy to say, it always depense on the current setup. On the RS4 you can roughly say 1Â°C = 1HP. But depense on the Programing it can be more, if the Motronik goes into the FailSafe Mode. That can happen when the Intake Temp. is going up...

Post by **TopBear** » Fri Jul 18, 2008 10:48 am

Lupo911 wrote:
Contigo wrote:3 pages and no talk of HP gain for 2000 Euro? Come on guys, what we talking here, 40bhp gain on Stock SMIC?
Thats not easy to say, it always depense on the current setup. On the RS4 you can roughly say 1Â°C = 1HP. But depense on the Programing it can be more, if the Motronik goes into the FailSafe Mode. That can happen when the Intake Temp. is going up...

You werent by any chance a politician in a previous life were you?

Post by **rs-werkstatt** » Fri Jul 18, 2008 6:32 pm

Today with 24 degrees celsius, we logged the IAT with VAG-Com.

The testcar had IAT of about 75-80 degrees celsius on that outside temperature.

For that test (on german autobahn) we start in 5th gear speed on 2'000 1/min engine speed. Kick-down until 7'100 1/min.

The big failure on the OEM-intercoolers is the big pressure drop when you press a huge airvolume through them.
This result in higher output temperatures on the turbochargers. So the OEM-intercoolers w'ont be able to cool down such high temperatures.

With this intercoolers you decrease the air temperature and the pressure out of the turbocharger.
Simulantenously you enhance torque.

Try and measure it

Martin

Post by **Jarv** » Fri Jul 18, 2008 8:08 pm

rs-werkstatt wrote:Today with 24 degrees celsius, we logged the IAT with VAG-Com.

The testcar had IAT of about 75-80 degrees celsius on that outside temperature.

For that test (on german autobahn) we start in 5th gear speed on 2'000 1/min engine speed. Kick-down until 7'100 1/min.

The big failure on the OEM-intercoolers is the big pressure drop when you press a huge airvolume through them.
This result in higher output temperatures on the turbochargers. So the OEM-intercoolers w'ont be able to cool down such high temperatures.

With this intercoolers you decrease the air temperature and the pressure out of the turbocharger.
Simulantenously you enhance torque.

Try and measure it

Martin

Looks impressive Martin. Can you just confirm for me, is this one set of data taken with the car with both OEM SMIC's in place against another set of data taken from the same car with both of the Wagner SMIC's in place, all logged via block 118?

Post by **rs-werkstatt** » Fri Jul 18, 2008 8:24 pm

Yes Mike. That's right.
But I took block 004 on VAG-Com.

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Audi RS4 Upgrade Intercooler Kit from Wagner Tuning

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