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SVTPerformance's Chain of Restaurants
Tuning À la carte
Lowering boost and re-tuning 2001 Cobra
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<blockquote data-quote="DSG2003Mach1" data-source="post: 16759320" data-attributes="member: 16477"><p>reducing boost should not require a re-tune. The MAF is, in theory, already properly scaled for the tube size, position etc...if the car is otherwise running well, lower the boost and keep going.</p><p></p><p>even when increasing boost - if the MAF is properly scaled it shouldn't need re-tune. I realize that's painting with a broad brush - when increasing boost you do have to consider headroom on the MAF, injectors, fuel pump and power being made on your fuel type.</p><p></p><p>HP is more of the concern than boost - 99/01 cobras and 03/04 machs are usually considered to be relatively safe around 450rwhp. Personally I'd probably go bigger blower pulley and then just let it eat all the way to 7k. With a P1 procharger kit a 4" blower pulley me right in the 10# area at 7k, car was slightly detuned (pulled timing) to bring it down into the 470s</p></blockquote><p></p>
[QUOTE="DSG2003Mach1, post: 16759320, member: 16477"] reducing boost should not require a re-tune. The MAF is, in theory, already properly scaled for the tube size, position etc...if the car is otherwise running well, lower the boost and keep going. even when increasing boost - if the MAF is properly scaled it shouldn't need re-tune. I realize that's painting with a broad brush - when increasing boost you do have to consider headroom on the MAF, injectors, fuel pump and power being made on your fuel type. HP is more of the concern than boost - 99/01 cobras and 03/04 machs are usually considered to be relatively safe around 450rwhp. Personally I'd probably go bigger blower pulley and then just let it eat all the way to 7k. With a P1 procharger kit a 4" blower pulley me right in the 10# area at 7k, car was slightly detuned (pulled timing) to bring it down into the 470s [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Lowering boost and re-tuning 2001 Cobra
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