DIY Cold Airbox Save $$$$
Thread Starter
Race Director
Joined: Sep 1999
Posts: 12,438
Likes: 919
From: CONCORD NC
no issues, runs great, nice clean cold air. Haven't really noticed throttle response, but I've put less than 500miles on the car the 6 months I've had it.
For what I'd charge, you might as well spend the big money on a honker
For what I'd charge, you might as well spend the big money on a honker
Thread Starter
Race Director
Joined: Sep 1999
Posts: 12,438
Likes: 919
From: CONCORD NC
There is no way to get a good seal between the air boxes and the shroud without either taping it up, OR adding a fabricated shroud. I made an aluminum shroud for each side to seal off most of the area between the air boxes and the shroud. With a little foam added to the spots that need them, I should now be able to get 99% of the airflow either to the radiators or the air intake.
Just painted it, and its now ready to put on for good.
Just painted it, and its now ready to put on for good.
Instructor
Joined: Aug 1999
Posts: 197
Likes: 0
How about using some weather stripping (car or home) rubber around the square cut out holes in the shroud to seal against the airfilters/airboxes? Wouldnt that work? Plus, once pressed around the edge of the cut shroud, it would hide any uneven or rough cuts! Have seen it at autoparts stores, JC Whitney has some with different profiles and attachment point shapes.
Thread Starter
Race Director
Joined: Sep 1999
Posts: 12,438
Likes: 919
From: CONCORD NC
It really doesn't need it now, as my final trimming and shaping is giving a good seal. I did put some foam around the bottom corners, but I'm pretty happy with the seal. Also, painted, it looks quite nice. I'll post better photos later.
btw, now that I have the airbox done and the Cat-back on (CORSA), I'll log some LTFT's and see if there are any issues.
btw, now that I have the airbox done and the Cat-back on (CORSA), I'll log some LTFT's and see if there are any issues.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Originally Posted by R4BLUETICKS
What about driving in the rain?/ Would that be an issue??
If you hit a really deep puddle, it could cause some issues. Just guessing though. If there wasn't a chance that there could be water ingestion GM would have made it that way in the first place.
If you make the change, you just have to know your limitations.
BC
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Thread Starter
Race Director
Joined: Sep 1999
Posts: 12,438
Likes: 919
From: CONCORD NC
Ran at VIR in the monsoon yesterday, and while I did put the OEM box back on, just in case (got it for next to nothing on ebay), I left the hole open in the shroud. To my surprise, very little water came up into the engine compartment, leading me to think that it would be very hard to gulp enough water to actually damage anything. The day included one extrememly high speed off, when I hydroplaned off the track at about 100mph, and drove half the length of the front straight bouncing through the "lawn", and again, very little water made it up into the engine bay, even with the big hole cut in the shroud.
The DIY box will go back on today!
The DIY box will go back on today!
Team Owner
Joined: Jan 2004
Posts: 38,772
Likes: 621
From: Boston MA
St. Jude Donor '06-'07-'08,'12-'13
Originally Posted by davidfarmer
Ran at VIR in the monsoon yesterday, and while I did put the OEM box back on, just in case (got it for next to nothing on ebay), I left the hole open in the shroud. To my surprise, very little water came up into the engine compartment, leading me to think that it would be very hard to gulp enough water to actually damage anything. The day included one extrememly high speed off, when I hydroplaned off the track at about 100mph, and drove half the length of the front straight bouncing through the "lawn", and again, very little water made it up into the engine bay, even with the big hole cut in the shroud.
The DIY box will go back on today!
The DIY box will go back on today!
That is why i put the LPE Cai on
It is near impossible to ingest water
unless you try to be a submarine commander !
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Dave
What air filters are those that you are using on your new set-up?? Where did you get them and how much are they?
I admire all all of the cool ground breaking stuff your doing!
Keep up the great work!
Racing in the rain!!!
You got some HUGH nads!!!!!!!! Have fun and be safe!
Bill C
What air filters are those that you are using on your new set-up?? Where did you get them and how much are they?
I admire all all of the cool ground breaking stuff your doing!
Keep up the great work!Racing in the rain!!!
You got some HUGH nads!!!!!!!! Have fun and be safe! Bill C
Thread Starter
Race Director
Joined: Sep 1999
Posts: 12,438
Likes: 919
From: CONCORD NC
I think my filters are Holley (they are blue), but I'm not sure. They came with the car. Personally, I think GREEN Filters are the best quality on the market.
Stoptechs will fit C6 wheels, IF you install longer studs. That is a PITA, but cheaper than getting new wheels.
Stoptechs will fit C6 wheels, IF you install longer studs. That is a PITA, but cheaper than getting new wheels.
Safety Car
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Hi David,
Some of us who admire your work are waiting for the final pictures of the DIY CAI. Thanx in advance,
Some of us who admire your work are waiting for the final pictures of the DIY CAI. Thanx in advance,
Melting Slicks
Joined: Jul 2001
Posts: 3,284
Likes: 3
From: Southwest Florida
This is a great idea and I'm sure will help with getting cold air in. My only comment would be that in looking at the stock system, the biggest airflow restriction appears to be where the two airboxes connect to the main tube. At those points, the air tubes are pinched down to quite a small diameter and by just eyeballing them (meaning I admit I'm making an assumption), that pinch-down should create both turbulence and restriction. I think that's where a completely redesigned CAI might give you some additional benefit (an extra few horses maybe). None of the aftermarket CAI's have restricted pinched down areas like this and most of them flow straighter as well which should also improve flow.
My .02
Mike
My .02
Mike