On the stock air intake (5.7L) . . . . What is the purpose of that long tube that runs down between the two cooling fans?
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Darrin C
'97 Z28 LT1 157K (((S O L D ))) A4, C/I Cold Air Induction, Flomaster Exhaust, SLP Fan Control Mod, Eibach Springs w/1" Drop, Racing Dynamics Shock Tower Brace, Lakewood LCA's.
07 Ford F150 - Daily Driver. I went from f-body to f-series. I think I'm out of my f'in mind..... -
I do believe that is a silencer. It doesn't really serve any other purpose. A good way to pickup a couple of horsepower is to add a highflow intake and replace the bellow with a smooth elbow. All in the name of power!!!
89 Firebird formula 350--95k on it, MSD ignition, full catback exhaust (flowmaster) 160 degree stat, custom chip from pcmforless.com, TPIS air filter, TPIS air foil, TPIS MAT relocation kit, built 700R4 with stage 2 shift kit and corvette servo.
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I've never seen any evidence to suggest that you "pickup a couple of horsepower" by deleting the resonance tube, or replacing the elbow with a smooth pipe. The main advantage of removing the resonance tube is to make the elbow easier to install.Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motorComment
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I know this post is kind of old but I just thought i'd put my two cents in. I've always gained a couple on every LT1 i've owned by thrashing the silencer and plugging up the inlet elbow. You'd be suprised, you can actually feel the difference. It's a "Free Mod" that actually works!'93 Z28 - A4/3.23, Homemade 4" Intake, 1LE Elbow, 160 stat, FAST Chip, 3" Cutout, Flowmaster, BFG Goodrich Drag radials - 13.48@103.7 (w/Dr's)
'96 Corvette LT4 Coupe #1,163, Bright Aqua Metallic/Black interior, no mods, 13.32@108.4Comment
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How do you measure "a couple".... you can't see it within the accuracy limits on a dyno, and you can't feel anything less than about 15HP using SOTP???? Are you suggesting that the elbow is worth more than 15HP?Fred
381ci all-forged stroker - 10.8:1 - CNC LT4 heads/intake - CC solid roller - MoTeC engine management - 8 LS1 coils - 58mm TB - 78# injectors - 300-shot dry nitrous - TH400 - Gear Vendor O/D - Strange 12-bolt - 4.11's - AS&M headers - duals - Corbeau seat - AutoMeter gauges - roll bar - Spohn suspension - QA1 shocks - a few other odds 'n ends. 800HP/800lb-ft at the flywheel, on a 300-shot. 11.5 @ 117MPH straight motorComment
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I call Fubar. If you remove that tube and cover it, The hole is going to still be there and still effect the air flow. I would say you pick maybe some Throttle response by replacing it with a Smooth elbow but Pretty much you wont feel the difference.Eddie
2000 M6 Trans Am
Tune+exhaust=344WHP
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Well Fred some people are "very" sensitive.Originally posted by Injuneer
97 Trans Am A4 more or less stock (Mods: WS6 Ram Air with Fernco & K&N, 12 disc CD changer, power antenna, SLP Fan Switch, LS1 Aluminum DS, Borla Cat back, McCord power plate, Spohn tower brace, Sirius, HID fog lights)
1and1 Web HostingComment
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Thanks for all the responses. I've got a K&N FIPK intake but it got cracked when they replaced the motor. I've still got the stock intake but I hate to put that one back on......
Instead of the FIPK this time, I'm gonna get the full cold air induction - the kit from the throttle body down.
I may not get a huge HP increase but I want to get a different sound out of it. Some people hate the noise but for me...the more noise, the better. Darrin C
'97 Z28 LT1 157K (((S O L D ))) A4, C/I Cold Air Induction, Flomaster Exhaust, SLP Fan Control Mod, Eibach Springs w/1" Drop, Racing Dynamics Shock Tower Brace, Lakewood LCA's.
07 Ford F150 - Daily Driver. I went from f-body to f-series. I think I'm out of my f'in mind.....Comment
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I have the Moroso CAI on mine with a Trick Flow elbow.
You can definitely hear it sucking air.
Both were easy to install my only complaint is the PIA factor of checking/cleaning the air filter now.My DD
2015 Lexus GS350 FSport
My toy
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I second that.Originally posted by sneitzel
I had to cut the length of mine to get it in. It was about an inch too long.2002 Electron Blue Vette, 1SC, FE3/Z51, G92 3.15 gears, 308.9 RWHP 321.7 RWTQ (before any mods), SLP headers, Z06 exhaust, MSD Ignition Wires, AC Delco Iridium Spark Plugs, 160 t-stat, lots of ECM tuning
1995 Z28, many mods, SOLD
A proud member of the "F-Body Dirty Dozen"Comment
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Same here. Dremmel made quick work of it though.Originally posted by Jeff 95 Z28My DD
2015 Lexus GS350 FSport
My toy
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