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Author Topic: cold air intake  (Read 20854 times)

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Offline Shimy87

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cold air intake
« on: July 28 2014, 10:36:28 AM »
Made this over weekend. 3 inch exhaust pipe, sheetmetal shroud/box with 1/4 in slit hose around edges. Cut out area where stock filter housing was mounted to open to air under nose of car. Probably wont really do anything but it was a rainy day
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87 GN, K&N cold air, gutted cat, TT 5.7 chip, AFPR, 340 Walbro w/ hotwire, 60 LBS injectors, 981 valve springs, 206/206 Cam, RJC Powerplate, LS1 MAF & translator, Vacuum brakes, Hellwig rear sway bar, Energy suspension poly bushings, Razors Alky, Pypes exhaust, 5931 turbo, CK9.5 converter

Offline earlbrown

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Re: cold air intake
« Reply #1 on: July 28 2014, 01:59:32 PM »
Without a lid it probably don't do much....

But the IAT reading will tell you if the air temp is lowered.
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'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline instro84

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Re: cold air intake
« Reply #2 on: August 06 2014, 12:17:22 AM »
nice looking project.
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Offline puzzledfox

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Re: cold air intake
« Reply #3 on: February 19 2017, 06:07:30 PM »
Did installing a cold air intake improve your ride's  fuel efficiency and horsepower?
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Offline earlbrown

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Re: cold air intake
« Reply #4 on: February 20 2017, 01:25:46 AM »
Mileage will drop as the temps go lower.

Without some probes it's hard to tell if pressure in that box was higher or lower than normal.


If higher it probably won't make measurable power until you hit about 250MPH.
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'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline puzzledfox

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Re: cold air intake
« Reply #5 on: February 21 2017, 10:18:46 AM »
Quote from: earlbrown on February 20 2017, 01:25:46 AM
Mileage will drop as the temps go lower.

Without some probes it's hard to tell if pressure in that box was higher or lower than normal.


If higher it probably won't make measurable power until you hit about 250MPH.


Thanks for enlightening me. Thinking of getting one for my ride.
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Offline good2win22

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Re: cold air intake
« Reply #6 on: February 26 2017, 10:39:07 AM »
Nice work!
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Jason

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Offline aminga

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Re: cold air intake
« Reply #7 on: February 28 2017, 09:32:19 AM »
I did something similar for different reasons.  I got tired of having the A/C hose rub on the filter and rub a hole in it.  Figured if the hose could rub a hole in the filter then the reverse was possible too (Giggity). 

My goal was to get the filter over toward the fender and away from the hoses.  As a plus I picked up a bung for the IAT.

I didn't build in anything to box it off.  I guess it helps some with IAT but sitting still in traffic it still climbs to over 120.




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86 Regal T-type. One Owner. Twisted 6 Racing Built 109, FTSS Revolution X 206/210 Cam, T&D 1.65 Rockers, Diamond Forged Pistons, RJC Power Plate, TA6262DBB, PTE SLIC, Alkycontrol pump and Kit and ISAC Controller, Bailey TR6 Wastespark, TA Headers, ATR Downpipe, Racetronix Walbro pump and hot wire ki

Offline earlbrown

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Re: cold air intake
« Reply #8 on: February 28 2017, 01:44:46 PM »
That's what I like about my MAF pipes.  They have a second articulation point you can 'steer' them down after clearing the up pipe and IAT plug.  With that additional adjustment they can miss the alternator pulley and go under the A/C lines without flexing them.

I always hated how normal pipe kits only allow for a slight height adjustment and the filter just has to land wherever it lands.
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'87 GN - 4.2L SFI Turbocharged innercooled V6 - Chrome valve covers - supra pump - 14" K&N - 52mm throttlebody - rocker shaft supports -  1/2 intake spacer - TB coolant bypass - 3" ATR exhaust tip - Alum intake pipe - NOS timing cover - chip - relocated charcoal canister - CR42's - stock

Offline Grumpy

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Re: cold air intake
« Reply #9 on: April 26 2017, 11:20:53 AM »
Quote from: earlbrown on July 28 2014, 01:59:32 PM
Without a lid it probably don't do much....

Ill bet it works better than having a lid on it  :player: Been there an done it  :rock:
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