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mad_sb · 02-21-2013, 08:36 PM

Exhaust:
it's going to be 2 different paths depending if you are going turbo or supercharger.

Turbo cars will probably run 3" exhaust systems and what they run will depend on the turbo manifold and down pipe combination and where they connect back up with the oem component locations. Larger diameter exhausts = quicker spool and beefy low end torque especially when you combine VVT tuning.

Supercharged guys can use any exhaust they choose but those that want the most power will run complete systems including headers. Most will probably run 2.5 or 2.75. It's going to depend on power targets. Anything that improves VE will further improve the power produced with a supercharger.

Intakes:
In both cases it will depend on what works with or is provided with the FI kit you choose.

Fuel system:
Not sure here, Perrin is saying SC 14psi at 7500 on stock injectors at 11.2 afr... however higher revs can easily push duty cycles to the point injectors are static so i don't think we have enough info yet on fuel system upgrades.

Instrumentation:
Boost, Oil Pressure, AFR should be mandatory. Oil Temp is almost mandatory on these. EGT is very nice to have for tuning.

Cooling:
Oil cooler should be added for anyone that uses the go pedal a lot, FI or not. I've seen over 212*f just commuting to work and back.

Brakes:
If you more power you should add more ability to scrub off speed.

Traction:
Probably a good application for stagger fitments to deal with added power to the rears. Sticky tires in at least 235's.

02-21-2013, 08:36 PM	#6
mad_sb Senior Member Join Date: Jan 2013 Drives: 2013 Asphalt FR-S Location: Orange County Posts: 1,639 Thanks: 632 Thanked 982 Times in 537 Posts Mentioned: 100 Post(s)	Exhaust: it's going to be 2 different paths depending if you are going turbo or supercharger. Turbo cars will probably run 3" exhaust systems and what they run will depend on the turbo manifold and down pipe combination and where they connect back up with the oem component locations. Larger diameter exhausts = quicker spool and beefy low end torque especially when you combine VVT tuning. Supercharged guys can use any exhaust they choose but those that want the most power will run complete systems including headers. Most will probably run 2.5 or 2.75. It's going to depend on power targets. Anything that improves VE will further improve the power produced with a supercharger. Intakes: In both cases it will depend on what works with or is provided with the FI kit you choose. Fuel system: Not sure here, Perrin is saying SC 14psi at 7500 on stock injectors at 11.2 afr... however higher revs can easily push duty cycles to the point injectors are static so i don't think we have enough info yet on fuel system upgrades. Instrumentation: Boost, Oil Pressure, AFR should be mandatory. Oil Temp is almost mandatory on these. EGT is very nice to have for tuning. Cooling: Oil cooler should be added for anyone that uses the go pedal a lot, FI or not. I've seen over 212f just commuting to work and back. Brakes: If you more power you should add more ability to scrub off speed. Traction: Probably a good application for stagger fitments to deal with added power to the rears. Sticky tires in at least 235's. __________________ ~Namaste~* 2013 Asphalt FRS Last edited by mad_sb; 02-21-2013 at 09:05 PM.