AFE stage II - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 18 (permalink) Old 03-15-2007, 08:29 AM Thread Starter
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AFE stage II

I recently installed my AFE stage II and that thing is the sweet, It diffinitely is a air hog, It's almost like it is singing a song. I do have one question, it seems like if I get on it hard and let off I can here something, it sounds like maybe the turbo is fluttering, I really do not know how to explain it. Is this normal? Should I be concerned? :thanks:

1999 F-350 7.3L CREW CAB DUALLY, LIVE TUNING BY DP TUNER, 180cc SINGLES, REGULATED RETURN FUEL SYSTEM, PRE-PUMP AND IN TANK FUEL SYSTEM AND OVER BOOST ANNIHILATOR BY ITP DIESEL, DR MINI PACKS TO LEVEL THE RIDE, 6" AUSSIE STACKS BY GRANDROCK, AFE STAGE II INTAKE, TURBO MODS BY HTT, 05 HEAD LIGHT CONVERSION WITH UPGRADE WIRING HARNESS BY DFUSER, 05 GRILL, 05 6 SPEED UPGRADE, SHORT THROW SHIFTER AND LUK CLUTCH BY MIDWEST TRANSMISSION , CCV MOD, LINE-X , QUAD POD FILLED WITH AUTO METER C2 GUAGES, CUSTOM SLED PULLING HITCH, COOLANT FILTER SETUP
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post #2 of 18 (permalink) Old 03-15-2007, 09:18 AM
 
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You are hearing turbo surge. You'll also hear it while shifting in a hard run with your six speed.
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post #3 of 18 (permalink) Old 03-15-2007, 09:28 AM Thread Starter
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:thanks:
I was not sure what it was, still learning. Will it hurt anything?

1999 F-350 7.3L CREW CAB DUALLY, LIVE TUNING BY DP TUNER, 180cc SINGLES, REGULATED RETURN FUEL SYSTEM, PRE-PUMP AND IN TANK FUEL SYSTEM AND OVER BOOST ANNIHILATOR BY ITP DIESEL, DR MINI PACKS TO LEVEL THE RIDE, 6" AUSSIE STACKS BY GRANDROCK, AFE STAGE II INTAKE, TURBO MODS BY HTT, 05 HEAD LIGHT CONVERSION WITH UPGRADE WIRING HARNESS BY DFUSER, 05 GRILL, 05 6 SPEED UPGRADE, SHORT THROW SHIFTER AND LUK CLUTCH BY MIDWEST TRANSMISSION , CCV MOD, LINE-X , QUAD POD FILLED WITH AUTO METER C2 GUAGES, CUSTOM SLED PULLING HITCH, COOLANT FILTER SETUP
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post #4 of 18 (permalink) Old 03-15-2007, 09:40 AM
 
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From what I've been told, it shouldn't hurt anything unless the turbo is surging under load. All of the manual trucks do this with the AFE. I've been running mine for several months and so far no turbo trouble yet. Not enough time to really know for sure but I plan on getting a bigger turbo so I'm not too concerned with hurting the stock turbo.
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post #5 of 18 (permalink) Old 03-15-2007, 01:44 PM
 
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yeah i agree with him ^^^^

mine does the same thing so not a worry :Thumbup:
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post #6 of 18 (permalink) Old 03-15-2007, 05:24 PM
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Over time it (surge) will eat up the turbo. But I think what you are hearing is stall not surge, at shift points there is a extream change of pressure from boost to no boost, so some leaks back out the intake... Making your noise.

01 F-250 SC PSD,210k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, GTS Hybrid injectors, Studs, 910 Valve springs, Forged rods Water injection,Swamps tuned, MBRP 4" dual's, Aero, 6" tip's, 100 axl tank, 4" Revtek lift, 37-14.50-17 TOYO MT's 469hp and 1068tq...

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post #7 of 18 (permalink) Old 03-15-2007, 05:28 PM
 
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well i notice my noise, almost like a blow off valve, when i build some boost then let off the gas?? is that surge as well.. same stage 2 afe intake as well
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post #8 of 18 (permalink) Old 03-15-2007, 05:37 PM Thread Starter
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Quote:
Originally Posted by CSIPSD
Over time it (surge) will eat up the turbo. But I think what you are hearing is stall not surge, at shift points there is a extream change of pressure from boost to no boost, so some leaks back out the intake... Making your noise.

How can I tell the difference between surge and stall? I here it when I get into it, and let off and shifting like you said.

1999 F-350 7.3L CREW CAB DUALLY, LIVE TUNING BY DP TUNER, 180cc SINGLES, REGULATED RETURN FUEL SYSTEM, PRE-PUMP AND IN TANK FUEL SYSTEM AND OVER BOOST ANNIHILATOR BY ITP DIESEL, DR MINI PACKS TO LEVEL THE RIDE, 6" AUSSIE STACKS BY GRANDROCK, AFE STAGE II INTAKE, TURBO MODS BY HTT, 05 HEAD LIGHT CONVERSION WITH UPGRADE WIRING HARNESS BY DFUSER, 05 GRILL, 05 6 SPEED UPGRADE, SHORT THROW SHIFTER AND LUK CLUTCH BY MIDWEST TRANSMISSION , CCV MOD, LINE-X , QUAD POD FILLED WITH AUTO METER C2 GUAGES, CUSTOM SLED PULLING HITCH, COOLANT FILTER SETUP
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post #9 of 18 (permalink) Old 03-15-2007, 07:14 PM
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Surge will happen when under load, about 1500-1800rpm's for most trucks... It will be a constant noise until you let off or shift up. Stall will happen when you let off real quick or when the truck shifts (in a auto)

01 F-250 SC PSD,210k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, GTS Hybrid injectors, Studs, 910 Valve springs, Forged rods Water injection,Swamps tuned, MBRP 4" dual's, Aero, 6" tip's, 100 axl tank, 4" Revtek lift, 37-14.50-17 TOYO MT's 469hp and 1068tq...

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post #10 of 18 (permalink) Old 03-16-2007, 08:56 PM Thread Starter
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Quote:
Originally Posted by CSIPSD
Surge will happen when under load, about 1500-1800rpm's for most trucks... It will be a constant noise until you let off or shift up. Stall will happen when you let off real quick or when the truck shifts (in a auto)
:thanks: I took a trip to MD this today to see family. I noticed that it diffinitly stalls when shifting in the higher RPM range. The other thing i noticed is their is some other noises coming from the turbo, which I think may be the surging, it will sometimes make that fluttering noise when I give it throttle, usually happens around 15psi of boost in the 100hp setting. Pretty much exactly what you said. My question is what is the cheapest way to cure this? Do i need a new turbo or can I go with a WW :shrug: If I go with a new turbo what else do I need to do? Will this damage anything until I upgrade? :thanks: :thanks: in advance

1999 F-350 7.3L CREW CAB DUALLY, LIVE TUNING BY DP TUNER, 180cc SINGLES, REGULATED RETURN FUEL SYSTEM, PRE-PUMP AND IN TANK FUEL SYSTEM AND OVER BOOST ANNIHILATOR BY ITP DIESEL, DR MINI PACKS TO LEVEL THE RIDE, 6" AUSSIE STACKS BY GRANDROCK, AFE STAGE II INTAKE, TURBO MODS BY HTT, 05 HEAD LIGHT CONVERSION WITH UPGRADE WIRING HARNESS BY DFUSER, 05 GRILL, 05 6 SPEED UPGRADE, SHORT THROW SHIFTER AND LUK CLUTCH BY MIDWEST TRANSMISSION , CCV MOD, LINE-X , QUAD POD FILLED WITH AUTO METER C2 GUAGES, CUSTOM SLED PULLING HITCH, COOLANT FILTER SETUP
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