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Here are some numbers from when AMS tested several cams on 1g with a 16g and all the supporting mods:
Cams Tested:
Stock Mitsubishi
Web Cams - Street Grind
HKS 264 intake 264 Exhaust
HKS 264 intake 272 Exhaust
HKS 272 intake 272 Exhaust
Crower - Stage 3 Grind
Jun Stage 3 Grind
Peak Horsepower and Torque Results:
Stock Mitsubishi Camshafts:
Peak HP: 309.5
Peak TRQ: 295.3
Spool up on street: quick, full boost by 3.2K RPM in 3rd gear with good power when off boost and as it's coming onto boost.
Web Cams - Street Grind:
Peak HP: 314.3
Peak TRQ: 295.3
Spool up on street: slower than stock, full boost by 3.4K RPM in 3rd gear with less power off boost than stock cams.
Crower - Stage 3 Grind
Peak HP: 322.6
Peak TRQ: 314.0
Spool up on street: much slower than stock (the worst of all the cams) with full boost hitting by 3.6-3.7K RPM and a definite loss in power off boost compared to stock cams.
Jun Stage 3 Grind
Peak HP: 323.7
Peak TRQ: 323.2
Spool up on street: Car was not driven on the street.
HKS 264 Intake 264 Exhaust
Peak HP: 323.1
Peak TRQ: 333.0
Spool up on street: As good as stock (3.2K RPM), with off boost power the same if not better than stock.
HKS 264 Intake 272 Exhaust
Peak HP: 324.2
Peak TRQ: 333.1
Spool up on street: Slightly slower than stock (3.3K RPM in 3rd gear) and a very slight loss in power in off boost conditions.
HKS 272 Intake 272 Exhaust
Peak HP: 325.2
Peak TRQ: 323.4
Spool up on street: Slower than stock, full boost by 3.4K RPM in 3rd gear with a slight loss in power in off boost conditions.
It seems that the HKS dominate with the smaller turbo, I would say with even a smaller turbo like the 14b, the hks 264/264 or 264/272 would be your best bet. This would give you a close to regular idle while still keeping a lower end powerband pretty similar, and increasing the top end power significantly. If you plan on going with a large turbo (20g and up) in the future I would suggest getting the hks 272/272 because they seem to prevail when flowing huge numbers. Not quite sure how that would work with the 14b though (rough idle). I would first suggest getting all the supporting mods so you can get the most out of your cams.
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