Looking to add an aftermarket cold air to my 05. i have a borla cat back exhaust and it may be a silly question is the exhaust i have a factor in deciding which cold air system i use? Probably overthinking it but in my amateur mind it kinda makes sense... anyone that can help out with some knowledge that would be great .... thanks boys
i hope everyone had a good memorial day and took a minute to reflect on some things

 

Exhaust doesn't matter with what kind of intake.

As for a recommended air intake, I would recommend a stock intake from a C6 Z06. They flow great, you can find the used on eBay or in the classifieds, and will look great.

There are several aftermarket intakes that are good but not work the $500 they charge for them considering the stock Z06 intake flows just as good.

 

Thanks for the feedback i'll take a loook to see if i can track one down.

 

If you care about the engine measure the crankcase pressure before and after you change the intake, make sure it doesn't go positive pressure at WOT.

 

The z06 intake won’t easily work for you due to a different MAF.

 

Just keep it stock, CAI is a waste of money unless you’re boosted.
Your stock intake was engineered perfectly.

 

Yup looked into things a little and it seems like maybe the stock unit is fine looked at some used (zo6) and kinda tough to find interesting opinions thoygh

 

Cold air gives more power. I kick the **** out of people in the winter. They are sucking hot air from under the hood and I am pulling Very Cold air from outside the car. Mine is home made.

 

hey lemans i've thought that may be possible i'd love to see some pics that's pretty cool you did it yourself .... when you have to cut the plastic to install a new one i was wondering if sealing it up would help ram the air a little better but i guess air is air ..... love to see some pics

 

I don't know lemans but here is a pic of mine....

 

Sorry about lemans..... I got confused i now see it's ls. That looks pretty nice maybe over the winter i'll try something similar. Thanks for sending the pic!

 

The hard part was engineering the piece to attach to the stock air intake. It's carbon fiber/Kevlar.

 

I see that it looks awesome did you use raw carbon fiber stock to make it? If so where did you get it? Or did you make it from an existing piece? Either way it's nice

 

Do a search for the $2 shroud prop, since it makes the most power per dollar.

 

Not true on an 05 or 06 C6. Those stock intakes were very restricted.
Tom

 

Ohh, I have an 08

 

me too.

 

Would you elaborate on the crankcase pressure & testing after air intake change please. Is the addl. air a threat to the crankcase and how can it be regulated?

Thanks for a reply.....................

 

Excellent question!
I have written volumes on this subject, Please review these literature first and ask any questions from here.
This like contains everything you need to know, more or less.
https://www.supraforums.com/threads/.../post-13980010

Nevertheless here is aux information to supplement including approval from GM powertrain engineer
https://www.corvetteforum.com/forums...post1605206492


To be brief, at WOT the only place to find a pressure below atmospheric is behind the air filter. This applies equally to forced induction and natural aspirated engines.
All OEM PCV systems both turbo and NA 100% of all engines manufactured are engineered to provide such a pressure drop thanks to the air filter, which increases while you drive,



This is done purposefully so the longer the engine goes without maintenance, the more cleaning action is done on the crankcase to maintain oil quality.

Air filters posses CFM ratings at some pressure drop. For example 500CFM @ 1.5" Hg. It is important to match the air filter pressure drop to the airflow demands of the engine. For example a 800CFM @ 1.5" Hg air filter cannot provide any PCV pressure drop at WOT to an engine which only uses 500CFM max.
Therefore anytime you modify the crankcase ventilation system (catch cans, intake manifold, air filters, pcv hose length changes, crankcase volume, etc...) you must also measure the crankcase pressure, and then make adjustments to compensate and re-establish the pressure drop on the crankcase.

Here is a basic method to measure crankcase pressure using 1-bar map sensor. You can guy a gauge, data-logger, even a warning lamp system, but it isn't required for this simple adjustment which is basically a one time thing.
https://www.corvetteforum.com/forums...post1605222279

Its such a small detail but literally the difference between life and death for the engine over the course of high mileage. PCV influences piston ring function, oil control, oil quality, an essential component of performance.

 

Hey guys that's some great information.
I know basics and that's it... that's why i was asking about any relation between air intake and exhaust sometimes i overthink but the base pressure is definitely something i never thought of but 100% makes perfect sense.
This is why i came here in the first place .
Thanks and keep it all coming!!