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 Write-Up: Flexible Tube Fenderwell Intake

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charlieRobinson
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jun 16, 2013 11:54 pm

Can you believe I am still working with a gutless airbox?!

I am getting itchy for an intake and now I am thinking this:
-3.5"-4" reducer from the TB
-4" Spectre Flexitube
-4"-4.5" PVC reducer that will be mounted in the hole by the fender, surrounded by insulation. This PVC reducer will also be drilled and home for the IAT sensor.
-4.5"x8" S&B filter in the fender well.

im probably gonna let that plan soak for a bit and might start buying parts this week.
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charlieRobinson
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sat Jul 06, 2013 1:41 am

Anyone know anything about this sceet stuff?
http://www.aircraftspruce.com/catalog/appages/sceet.php



It's smooth bore aircraft duct tubing. Can withstand 550F degrees, is flexible, wont collapse, etc..
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robotennis61
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sat Jul 06, 2013 2:55 am

That's awesome stuff! @ $12 bucks a foot it better be!
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AA
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sat Jul 06, 2013 9:16 am

Use for brake cooling ducts to front wheels (where flexibility is needed). A bit much for engine air intake, but it would work!

_________________
'98 SC Riviera • 268k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180บ t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch


'05 GTO • 49k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun
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charlieRobinson
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sat Jul 06, 2013 7:54 pm

Well, I am narrowing it down. I want flexible tubing and the spectre tubing and this are the only candidates I have so far.
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96_Juggernaut
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 08, 2013 1:12 am

That stuff is priced along side with the ZZP and Intense tubing, however I like this more ( minus the color )
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Karma
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 08, 2013 2:44 pm

charlieRobinson wrote:
Well, I am narrowing it down. I want flexible tubing and the spectre tubing and this are the only candidates I have so far.


Don't forget about the intense tubing:
http://intense-racing.com/Merchant2/merchant.mvc?Screen=PROD&Store_Code=IR&Product_Code=AIR-xx0&Category_Code=3800_Induction

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robotennis61
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 08, 2013 4:23 pm

The Intense stuff makes more sense. the red stuff ,like AA sez,is better suited for brake ducting. jmo.
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charlieRobinson
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 08, 2013 7:29 pm

The picture doesnt sell the intense tubing very well. Looks like trash.. suspect 
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robotennis61
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 08, 2013 7:54 pm

charlieRobinson wrote:
The picture doesnt sell the intense tubing very well. Looks like trash.. suspect 

It's just run of the mill canvas/wire ducting.Alot better than HomeDepot dryer ducting.when I get mine done I'll go with nice sturdy plumbing tubing.Cheap & durable.Only prob is ya gotta sit down in the HomeDepot plumbing aisle and figure it out.I hate that.Plumbing tubing ain't pretty but flows more than canvas hose and insulates against heat way better too.
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charlieRobinson
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 08, 2013 8:31 pm

From the pic, the intense tubing does not look smoothed inside.
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AA
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 08, 2013 8:57 pm

I really doubt the silicone (orange) tubing is that much smoother inside vs. INTENSE hose. Pictures can be misleading - anything looks like trash under poor flash photography.

_________________
'98 SC Riviera • 268k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180บ t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch


'05 GTO • 49k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun
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http://www.cardomain.com/ride/657082/4
robotennis61
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Tue Jul 09, 2013 12:58 am

The orange hose is super thick compared to the black hose and way stiffer.I had a few feet of it for my old Legends intake that I never got around to fabricating.Really high quality stuff.The black hose is thinner and lighter.Orange is typically used in motorsports where high heat and durability is an issue.Such as brake cooling.The black stuff less so.
For intakes, smooth they say is better.less turbulence. But,whatever. It's what ya got handy to make things work that makes it work!


http://www.summitracing.com/search/product-line/allstar-performance-high-temp-brake-duct-hoses
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charlieRobinson
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 10:25 am

Can anyone comment on the inside condition of the zzp or intense 4" intake tubing? I really would like to go flexible instead of piping. Any insight is appreciated!
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69GSColorado
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 7:18 pm

Can I ask why? No offense but it looks terrible and amateurish. Even the PVC pipe looks better IMO.
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llamalor2112
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 8:23 pm


Terrible and amateurish? If we're speaking purely cosmetics I think it looks a hell of a lot nicer than some stock or even box setups. Imo of course
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AA
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 8:54 pm

I think the flexible tube is appropriate for race applications. You see it a lot at the track where tweaking and tuning happens. A flexible tube is, well, flexible for different set-ups. For a production look, it doesn't quite hit the mark of a molded or machined part that fits exactly one application. So yes, it may look amateurish, but certainly not terrible. And amateur isn't always a bad thing, sometimes can mean more fun!

_________________
'98 SC Riviera • 268k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180บ t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch


'05 GTO • 49k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun
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http://www.cardomain.com/ride/657082/4
charlieRobinson
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 9:30 pm

Evan, why the warm air intake?
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llamalor2112
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 9:40 pm

It's a temporary step until I fab my ideal box to fit in there. Even as-is I never see temps jump above 195* (my tstat is still a 195) and at a stand still it only ever bumps up to 200* then jumps back down in a flash. Never gets wet, dirty in the monsoon weather that I'm always in here. Was originally only going to leave it like that for a week or two tops but its never proven troublesome so I've been lazy with makin the box. Soon though...
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AA
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 10:18 pm

FYI, the intake air temp (IAT) doesn't impact the engine (coolant) temp. The two are almost completely exclusive. Your coolant temp can be low (180บF) and if IAT is hot, say 140บF, the engine can see knock (KR) even stock. The PCM will pull timing to protect itself, which makes the car slower.

Alternatively, coolant temps can be 210-220บF and if IAT is low (ambient) the engine may not see much KR at all, especially on a cool day. Just want to clarify that a warm air intake can increase spark knock without raising the engine temp.

_________________
'98 SC Riviera • 268k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180บ t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch


'05 GTO • 49k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun
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http://www.cardomain.com/ride/657082/4
llamalor2112
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Sun Jul 14, 2013 10:33 pm

Well all I can say in short is, even with a "hot intake" my car is much happier than it was stock. Noticeably so.
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AA
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 15, 2013 12:57 am

Can only know that if you scan for KR under throttle. Everyone's car seems "happy" before it cracks a piston.

_________________
'98 SC Riviera • 268k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180บ t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch


'05 GTO • 49k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun
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http://www.cardomain.com/ride/657082/4
IBx1
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 15, 2013 1:18 am

Evan, your setup looks almost exactly like what I had. That flex tubing will fit through the hole that the stock airbox sucked air through; you will have to screw it in and attach the filter on the other side behind the fender lining, but it makes more sound and gives you true cooler air. A supercharged OBD-I engine is very picky about intake temperatures and knock, and does not compensate for it nearly as well as an OBD-II car would.
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69GSColorado
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 15, 2013 2:13 am

I guess I shouldn't say terrible, but why go with flex tubing when there are more proven and cost effective options available? Not to mention more aesthetically pleasing.

I went with Chris Davis' 3.5" Spectre FWI. It looks amazing with the aluminum finish and fits in the fender-well very well. In my opinion, that's the best aftermarket cold-air intake system available for our Rivieras. However, with that said, I'd still trade my intake any day for AA's beautiful custom intake. It's too bad he didn't mass produce those puppies.
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AA
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PostSubject: Re: Write-Up: Flexible Tube Fenderwell Intake   Mon Jul 15, 2013 2:36 am

One reason I could see using flex tube would be for experimenting with different intake builds/locations/mod plans. Probably the best example I can think of is when adding an IC. As much as I like my SS intake tube (credit to Rob Harlan for design and fab), it probably couldn't be used if I added an IC. The fact it's rigid and fits so well means it would have to be modified, rebuilt, or adapted to fit a raised blower & TB. No such problem with flex tube.

I think Rob made 3 of the SS intakes. One sold a couple years ago. Not sure where the 3rd one went.

_________________
'98 SC Riviera • 268k miles • 298 HP/370 TQ • 0-60: 5.79s • ET: 13.97 @ 99.28 • 4087 lb • 20.1 avg MPG • Nelson Ledges Lap: 1:30
3.4" pulley • AL104 plugs • 180บ t-stat • FWI w/K&N • 1.9:1 rockers • OR pushrods • LS6 valve springs • SLP headers • ZZP fuel rails
KYB GR2 struts • MaxAir shocks • Addco sway bars • UMI bushings • GM STB • Enkei 18" EV5s w/ Dunlop DZ101s • F-body calipers
EBC bluestuff/Hawk HP plus • SS lines • Brembo slotted discs • DHP tuned • Aeroforce • Hidden Hitch


'05 GTO • 49k miles • 0-60: 4.8s • 16.9 avg MPG • Nelson Ledges Lap: 1:26
Because fun
Back to top Go down
http://www.cardomain.com/ride/657082/4
 
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