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Perrin Short Ram Intake - Big MAF (Red)
Part #: PSP-INT-221RD
$229.99
$225.39
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Video Description:Explanation of the Difference Between Cold Air Intakes and Short Ram Intakes on Andy's Auto Sport TV
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Video Description:On this episode of Andy's Auto Sport TV, we explain all the basics about mass air flow sensors and what you need to know about them!
Fits On:
02-07 WRX / 04-07 STI
Description:
Completely New Design!!!
High horsepower engines need to be fed the proper amount of both fuel and air to keep the engine happy. The need for more air flow can mean the stock MAF sensor can get maxed out. In situations where the engine is making 320 Wheel HP or more, the factoryMAF sensor will become maxed out! This limits the amount of Horsepower your ECU can be tuned for. PERRIN™ has devised away to literally sneak additional airflow around the MAF to increase resolution in timing and fuel maps on your tuned ECU. Combined with the wisdom of a proper tuning guru you can add tremendous horsepower and torque. Available with red, blue or black silicone tubing. Kit includes mounting hardware and instructions. See PERRIN™ for additional details.NOTE: Requires aftermarket ECU Tuning. See compatibility note for additional details, or contact us prior to ordering. Thank you!
Also available is a new cold air extension add-on for those wishingto extract every last bit of power from an intake system. Each IntakeSystem includes T-bolt clamps, and super tuf wrinkle red or blackpowder coating, silicone coupler, a PERRIN Performance foam air filter,MAF sensor housing and mounting hardware.
Features:
NOTE: Contact your tuner or our Tech Dept prior to ordering. This partcan cause detrimental performance and potential engine damage if usedimproperly.
Allows further tuning beyond previous pegged MAF signals.
Great for cars with larger than stock injectors and turbos making 50 more HP than stock.
Perfect for cars producing in excess of 320 Wheel HP
TUNERS SECTION
The BigMAF is meant for cars running more than 320 WHP or carsthat make enough power to outflow the stock intake system. This happensmainly on 2.5L Turbo motors when a bigger turbo is installed.
The BigMAF is designed to do two things:
1.Allow the ECU to read more airflow than the stock intake system. Thisallows the ECU to be tuned for Wheel HP ratings up to 500WHP on up. This allows for more resolution in the fuel and timing mapping so theengine can be safely tuned.
2. The BigMAF offsets 800cc fuel injectors. The size of theBigMAF housing was designed around this larger size to make for easiertuning injectors. This means that when tuning the ECU, the fuelinjector size will stay about the same as stock which makes for easiertuning. This also makes some of the other internal parameters in theECU work better so the car runs smoother.
One thing people dowrong when starting with tuning the BigMAF is going and changing theinjector size to 800cc then increaseing the MAF scaling to make up forthe large size. The correct way is to leave the scaling and injectorsize alone, then adjust the injector size slightly to get the idle andlight throttle fuel corrections close. From there tuning of the MAFcurve can be done, but will be very minor changes. That should be enought to get you close on your tune.
Completely New Design!!!
High horsepower engines need to be fed the proper amount of both fuel and air to keep the engine happy. The need for more air flow can mean the stock MAF sensor can get maxed out. In situations where the engine is making 320 Wheel HP or more, the factoryMAF sensor will become maxed out! This limits the amount of Horsepower your ECU can be tuned for. PERRIN™ has devised away to literally sneak additional airflow around the MAF to increase resolution in timing and fuel maps on your tuned ECU. Combined with the wisdom of a proper tuning guru you can add tremendous horsepower and torque. Available with red, blue or black silicone tubing. Kit includes mounting hardware and instructions. See PERRIN™ for additional details.NOTE: Requires aftermarket ECU Tuning. See compatibility note for additional details, or contact us prior to ordering. Thank you!
Also available is a new cold air extension add-on for those wishingto extract every last bit of power from an intake system. Each IntakeSystem includes T-bolt clamps, and super tuf wrinkle red or blackpowder coating, silicone coupler, a PERRIN Performance foam air filter,MAF sensor housing and mounting hardware.
Features:
NOTE: Contact your tuner or our Tech Dept prior to ordering. This partcan cause detrimental performance and potential engine damage if usedimproperly.
Allows further tuning beyond previous pegged MAF signals.
Great for cars with larger than stock injectors and turbos making 50 more HP than stock.
Perfect for cars producing in excess of 320 Wheel HP
TUNERS SECTION
The BigMAF is meant for cars running more than 320 WHP or carsthat make enough power to outflow the stock intake system. This happensmainly on 2.5L Turbo motors when a bigger turbo is installed.
The BigMAF is designed to do two things:
1.Allow the ECU to read more airflow than the stock intake system. Thisallows the ECU to be tuned for Wheel HP ratings up to 500WHP on up. This allows for more resolution in the fuel and timing mapping so theengine can be safely tuned.
2. The BigMAF offsets 800cc fuel injectors. The size of theBigMAF housing was designed around this larger size to make for easiertuning injectors. This means that when tuning the ECU, the fuelinjector size will stay about the same as stock which makes for easiertuning. This also makes some of the other internal parameters in theECU work better so the car runs smoother.
One thing people dowrong when starting with tuning the BigMAF is going and changing theinjector size to 800cc then increaseing the MAF scaling to make up forthe large size. The correct way is to leave the scaling and injectorsize alone, then adjust the injector size slightly to get the idle andlight throttle fuel corrections close. From there tuning of the MAFcurve can be done, but will be very minor changes. That should be enought to get you close on your tune.
- Andy's Auto Know Dictionary Term: Short Ram Intake
Okay, word association time -- what comes to mind when you think of the word "Oregon?" Maybe trees, or the people who hug them? Possibly, but if you're a speed freak like us, you probably think more along the lines of "Rally America" and "Perrin Performance." Perrin, a part of the Alta Performance Group, began manufacturing specialized aftermarket parts more than a decade ago. They cater especially to high-power sport compact cars, including Subarus, Evos, and more. Perrin has the heavy-hitters of Japanese all-wheel drive performance covered with parts that are built in the U.S., and just as importantly, built to last. With the full line of Perrin Performance products available, Andy's Auto Sport is here to help turn your car into a beast!
Q: What is a short ram intake? Why buy a short ram intake?
A: Short ram intakes bring more air into your car's engine, which creates more power during combustion. Short ram intakes will help with throttle response and gives your car more power, while at the same time adding a pleasing induction sound to your engine under acceleration. A short ram intake also significantly cleans up your under-hood appearance and makes it easier to see and access components of your engine bay.
Q: What's the difference between a short ram intake and a cold air intake?
A: Cold air intakes are usually placed in the fender well area, which brings in a cooler charged air from beneath the car (outside of the engine bay), which is denser and therefore creates more power. The piping is a lot longer than a short ram which means the power gains are not seen until the mid to higher RPM band. A short ram intake is located inside the engine bay and creates power with better response times than a cold air, however the air is not as dense, which means that it doesn't make as much power in the upper RPM region and makes less power overall.
Q: How do you install a short ram intake?
A: Short ram intakes are a true bolt-on application. The removal of your factory air box and resonator will be needed and the short air intake installed in its place. Basic hand tools are needed, and the intake installs in minutes.
A: Short ram intakes bring more air into your car's engine, which creates more power during combustion. Short ram intakes will help with throttle response and gives your car more power, while at the same time adding a pleasing induction sound to your engine under acceleration. A short ram intake also significantly cleans up your under-hood appearance and makes it easier to see and access components of your engine bay.
Q: What's the difference between a short ram intake and a cold air intake?
A: Cold air intakes are usually placed in the fender well area, which brings in a cooler charged air from beneath the car (outside of the engine bay), which is denser and therefore creates more power. The piping is a lot longer than a short ram which means the power gains are not seen until the mid to higher RPM band. A short ram intake is located inside the engine bay and creates power with better response times than a cold air, however the air is not as dense, which means that it doesn't make as much power in the upper RPM region and makes less power overall.
Q: How do you install a short ram intake?
A: Short ram intakes are a true bolt-on application. The removal of your factory air box and resonator will be needed and the short air intake installed in its place. Basic hand tools are needed, and the intake installs in minutes.
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