subaru factory tuning images and picture gallery
| Meatier Tires | |
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the stock pistons were swapped for CP 2618 forged slugs and ARP head studs were used to hold in the boost Most amazing of all this occurred with only 700 miles on the odometer Suspension One of the great advances with the 2008 is the width of the factory wheels along with the extra room in the wheel wells Previous stock Subarus maxed out at 8 0 inches without fender |
| SubaruBoostSystem 7 jpg | |
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| SubaruBoostSystem 5 jpg | |
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| SubaruBoostSystem 9 jpg | |
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sure to make very small increases in the diameter of the hole If the center hole is machined too large you will not be able to hit your boost targets even with 100 wastegate duty cycle |
| SubaruBoostSystem 13 jpg | |
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easily see wastegate rod movement Now you will need to remove the stock vacuum line which attached to the WG actuator Replace this line with the vacuum line from your vacuum pressure pump |
| SubaruBoostSystem 4 jpg | |
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when using a restrictor with a center hole of this size the boost control system will have a higher tendency to boost spike and you will need less wastegate duty cycle to run higher boost |
| SubaruBoostSystem 16 jpg | |
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Now you can slowly pressurize the wastegate diaphragm at some pressure level you will see the wastegate rod move Below is a graph of the WG rod movement for a 2006 WRX MT |
| SubaruBoostSystem missing jpg | |
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| SubaruBoostSystem 14 jpg | |
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A standard Mityvac™ vacuum pressure pump can be used |
| SubaruBoostSystem 15 jpg | |
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Plumb the vacuum line so it goes directly from the pump nozzle to the wastegate actuator nipple |
