Cold Air?
06-10-2018, 10:47 PM
#2
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06-11-2018, 05:55 AM
#3
I did look at I see that it would indeed take in hot air, which brings me to the second question… I just bought an Airaid intake which claims to bring in cold air. Its mounted in the exact same area as the stock one. How is it to bring in cold air??
06-23-2018, 11:51 AM
#5
Safety Car
A true cold air intake would be one that isolates hot engine heat and directs ambient air into the air filter. Halltech MF103 uses a shroud to reduce engine heat from entering into the air filter. Halltech also keeps the air filter in the stock location preventing engine from hydrolock. Other aftermarket kits require the cutting of the stock radiator shroud. I am not a fan of this design because at idle heat from the radiator can be pulled into the air intake.
The Airaid has panels or fins (small) that isolate engine heat between the hood and air filter housing when the hood is closed. So it is designed to isolate engine heat. I am not sure how effective it is?
The Airaid has panels or fins (small) that isolate engine heat between the hood and air filter housing when the hood is closed. So it is designed to isolate engine heat. I am not sure how effective it is?
Last edited by Mike's LS3; 06-23-2018 at 12:04 PM.
06-23-2018, 02:33 PM
#7
A true cold air intake would be one that isolates hot engine heat and directs ambient air into the air filter. Halltech MF103 uses a shroud to reduce engine heat from entering into the air filter. Halltech also keeps the air filter in the stock location preventing engine from hydrolock. Other aftermarket kits require the cutting of the stock radiator shroud. I am not a fan of this design because at idle heat from the radiator can be pulled into the air intake.
The Airaid has panels or fins (small) that isolate engine heat between the hood and air filter housing when the hood is closed. So it is designed to isolate engine heat. I am not sure how effective it is?
The Airaid has panels or fins (small) that isolate engine heat between the hood and air filter housing when the hood is closed. So it is designed to isolate engine heat. I am not sure how effective it is?
The fins block off about 10% of the area.. There are massive openings all around to let the heated engine bay air in. NOBODY should include this POS in threads about "cold air intakes".
06-23-2018, 03:26 PM
#8
Yep, true cold air system will draw all it air from outside the car/ outside the engine bay area.
Hence the hotter the air the engine is pulling in, the more the engine will pull timing.
Attachment 48334173
As for the air intake temp sensor, it's part of the MAF sensor, so until the intake does draw enough cooler air to cool it the air intake sensor back down, the car will still be pulling timing.
Hence the hotter the air the engine is pulling in, the more the engine will pull timing.
Attachment 48334173
As for the air intake temp sensor, it's part of the MAF sensor, so until the intake does draw enough cooler air to cool it the air intake sensor back down, the car will still be pulling timing.
Last edited by Dano523; 06-23-2018 at 03:26 PM.
06-23-2018, 04:06 PM
#9
Safety Car
Wow, that certainly is not going to help. Maybe you can sell it and buy a shroud from Halltech and just modify the shroud to fit the stock air intake. I actually did this years ago and I just needed to trim the area of the bridge to make it fit. Make a cardboard template shroud with the stock intake, then just overlay it on the Halltech shroud and trim what is needed. The stock air intake is very good on the LS3/7, it just needs a shroud to prevent engine heat from coming into the air intake. Why corvette did not do this, I do not know. Heck, my 2013 Silverado has cold air intake, taking air from the front right fender!
Last edited by Mike's LS3; 06-23-2018 at 04:08 PM.
06-23-2018, 04:34 PM
#10
Le Mans Master
The air intake temp matrix posted above from HPT is a factory setup in an E38 ECU which most C6s use. Note that timing begins to be pulled at 86*F. One thing I hope everyone can agree, no air filtration system will be able to reduce ambient air temps in this range, unless there is some form of refrigeration designed in. Even if you cut a big hole in the hood and plumbed a 4" tube out into the open atmosphere, if it is a 90* day, the best you can hope for is 90* (more with friction related to speed). I've done a lot of data logging with different setups. On average, once air temps get over 75*/80*, the actual intake air temps will be 2* to 12* above ambient air temps regardless of the air intake you use.
When (if) you get up to the temps Bobby is showing on his thermometer above, you'll be pulling 8* to 9* of timing or more and it won't matter what you have bolted up.
When (if) you get up to the temps Bobby is showing on his thermometer above, you'll be pulling 8* to 9* of timing or more and it won't matter what you have bolted up.
Last edited by BlindSpot; 06-23-2018 at 04:35 PM.
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06-23-2018, 05:32 PM
#11
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06-23-2018, 06:53 PM
#12
Pro
OP, you might consider something like this: https://www.corvetteforum.com/forums...ke-shroud.html
https://www.corvetteforum.com/forums...ck-intake.html
Good luck!
https://www.corvetteforum.com/forums...ck-intake.html
Good luck!