Durametric values

[zunamigti]

 

Hi. First sorry for my bad english [emoji12].

I'm doing tests to check my low performance on dyno. 187hp instead of 204hp (1997 2.5 Boxster). No cel, new lambdas, new filters (all), no dtc.

 

I have all values correct except:

-Spec. Air mass: 14-16 instead of 15.25-15.75

-Spec. air adaptation: -1 instead of 1.45-1.55

-Ignition timing: 4.5-5.3 instead of 4.8-5.8

Maf readings are correct at iddle and at 3000rpm. Peak maf readings 2nd gear WOT are about 550kg/h. Tried with another used maf and same values at wot 2nd gear.

AOS? Air leak?

P.S.: installed high flow headers, 996 3.4 throttle body (correct tps readings) and a plenum insert like techno torque.

Plenum insert:

Thanks and kind regards!!

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Edited December 21, 2016 by Loren
Porsche copyrighted material removed.

[zunamigti]

Anybody knows how many maf max kg/h readings for boxster?
I have this readings:


553,25 at 5800rpm

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[Loren]

1997 Boxster (only)

[zunamigti]

1997 Boxster (only)

Thanks Loren. I have this. Im asking WOT MAF Max readings.


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[Loren]

Quote

Thanks Loren. I have this. Im asking WOT MAF Max readings.

 

That is not spec'ed by Porsche.

[zunamigti]

Thanks Loren. I have this. Im asking WOT MAF Max readings.

 
That is not spec'ed by Porsche.

OK thanks. As there is a relationship between Flow and hp, I wanted to know if anyone has logged it and maximum value. regards!!

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[mikefocke]

The TechnoTorque has gone through several iterations and some tuners have negative opinions of it.  Try removing it.

[JFP in PA]

1 hour ago, mikefocke said:

The TechnoTorque has gone through several iterations and some tuners have negative opinions of it.  Try removing it.

 

+1

[zunamigti]

The TechnoTorque has gone through several iterations and some tuners have negative opinions of it.  Try removing it.

[emoji33] [emoji33] [emoji33]
Really? I try it.
Thanks.

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[zunamigti]

Hi! Uninstalled technotorque, cleaned maf, new bosch lambda, new aos, new fuel pump, adjusted TPS.
Mods: 996 big TB, high flow headers & exhaust.

Dyno result:
125,7kw at wheel (124kw at wheel are nominal value from this web http://rototest-research.eu/popup/performancegraphs.php?ChartsID=453 ) and 8Nm more of torque.
Is a good graph?


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[zunamigti]

PS. In graph nominal power 160kw is an error from dyno personal... 150kw correct value.

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