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HPT: bigger TB and Intake ???

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Old 04-11-2010, 03:34 AM
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Default HPT: bigger TB and Intake ???

Hi just wondering if i change from 78mm TB to 90mm TB do i need to make some changes in the HPT other then Maf and VE tables???

And also if i change for bigger more flowing intake are there other changes to make other then MAF and VE

thanks

Baezi
Old 04-11-2010, 05:30 AM
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A TB alone does stuff all (very overated mod). But in saying that it will effect your IAC so rescaling your desired airflow is not a bad idea (even though the trims should sort it).

Changing intake has the potential to increase VE. Subsequently timing should be retarded to optimise for it.
Old 04-11-2010, 10:57 AM
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Originally Posted by macca_779
A TB alone does stuff all (very overated mod). But in saying that it will effect your IAC so rescaling your desired airflow is not a bad idea (even though the trims should sort it).

Changing intake has the potential to increase VE. Subsequently timing should be retarded to optimise for it.
Old 04-11-2010, 02:36 PM
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Originally Posted by ctd



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