Turbo shot or not? - Ford Powerstroke Diesel Forum
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post #1 of 24 Old 01-01-2008, 04:20 PM Thread Starter
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Question Turbo shot or not?

Hey guys,

Got a late 99 f350 with 300k with the original turbo stock intake and exhaust. I do have a superchip and just put gauges on for christmas and The most boost I can get out of it is 12 psi and that is hammering the go pedal. I read someone else's post and they said the stock turbo was good for about 25-28 psi, but they had and intake and maybe exhaust. Shouldn't I be getting more than 12? If so, do you think it is the turbo or a wastegate problem.

99 F350 4x4 Crew Cab Duelly Flatbed
Automatic w John woods VB and HD converter
4:88 gears
Leveling kit
460,000 miles on truck 130k on motor
22.5 Peterbuilt wheels with 36" tires
Dp-tuner Chip
Gauges
4in Turbo Back Silverline Exh. into grand rock 6" mitercut stacks
Irate Diesel S366 turbo kit
Full Force diesel Stage 1 Injectors
DIY Intake
Terminator modded HPOP
Irate Diesel comp. fuel system with RR
Iron Bull Front Bumper with 12,5 winch
Reacon smoked cab lights and LED bed lights
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post #2 of 24 Old 01-02-2008, 04:16 PM Thread Starter
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After driving more today I'm seeing about 4 # of boost at 2200 rpms under normal driving conditions, If I go up a hill or accelerate it will raise to about 8 and will hit at most 13 will hammering it. Let me know some things to check and how to check them.

Thanks

99 F350 4x4 Crew Cab Duelly Flatbed
Automatic w John woods VB and HD converter
4:88 gears
Leveling kit
460,000 miles on truck 130k on motor
22.5 Peterbuilt wheels with 36" tires
Dp-tuner Chip
Gauges
4in Turbo Back Silverline Exh. into grand rock 6" mitercut stacks
Irate Diesel S366 turbo kit
Full Force diesel Stage 1 Injectors
DIY Intake
Terminator modded HPOP
Irate Diesel comp. fuel system with RR
Iron Bull Front Bumper with 12,5 winch
Reacon smoked cab lights and LED bed lights
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post #3 of 24 Old 01-02-2008, 04:19 PM
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i read some other posts here about pluging waste gate tube and increasing boost. i will try to find it and tel you where to look if someone dont beet me to it.

Keith in Alaska (lovin it)
94 IDI
95 7.3 ex cab L/B 4X4 (D66 stage 1s 4" Turbo back 6637 air filter and bully dog chip)
05 6.0 Excursion 4X4 (stock)
10 6.4 F350SRW CCLB manual trans (stock)


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post #4 of 24 Old 01-02-2008, 04:31 PM Thread Starter
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I want more boost, but I want to make sure That I don't have a problem first, I've tried unplugging the wastegate tube but It didn't run any better, It actually seemed slightly worse.

99 F350 4x4 Crew Cab Duelly Flatbed
Automatic w John woods VB and HD converter
4:88 gears
Leveling kit
460,000 miles on truck 130k on motor
22.5 Peterbuilt wheels with 36" tires
Dp-tuner Chip
Gauges
4in Turbo Back Silverline Exh. into grand rock 6" mitercut stacks
Irate Diesel S366 turbo kit
Full Force diesel Stage 1 Injectors
DIY Intake
Terminator modded HPOP
Irate Diesel comp. fuel system with RR
Iron Bull Front Bumper with 12,5 winch
Reacon smoked cab lights and LED bed lights
nic2fast is offline  
post #5 of 24 Old 01-02-2008, 04:33 PM
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Possible boost leak. Are you smoking alot under acceleration? If so check all your intercooler boots and make sure they are tight.

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
DP Tuner F5
ATS Compressor and 1.0 Exhaust housing high flow back plate
Turbo Back 4" Silverline Exhaust Mbrp Muffler Delete
Isspro Trans,Pyro,Boost Triple Pod
Fumoto Oil Drain Valve
AIH Delete With Boost Fitting

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post #6 of 24 Old 01-02-2008, 04:35 PM
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Is your turbo making any weird sounds?

14psi sounds low, even for a stock program.

Your superchips should have you over 25psi.

2001 F250
11.62 @ 115.79
Owner of Marty's Diesel
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post #7 of 24 Old 01-02-2008, 04:35 PM
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unplug and plug the line is what they were doing they put it on a screw or bolt close by

Keith in Alaska (lovin it)
94 IDI
95 7.3 ex cab L/B 4X4 (D66 stage 1s 4" Turbo back 6637 air filter and bully dog chip)
05 6.0 Excursion 4X4 (stock)
10 6.4 F350SRW CCLB manual trans (stock)


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post #8 of 24 Old 01-02-2008, 04:38 PM
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Yeah I can hit 28 with mine on the performance tune.

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
DP Tuner F5
ATS Compressor and 1.0 Exhaust housing high flow back plate
Turbo Back 4" Silverline Exhaust Mbrp Muffler Delete
Isspro Trans,Pyro,Boost Triple Pod
Fumoto Oil Drain Valve
AIH Delete With Boost Fitting

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post #9 of 24 Old 01-02-2008, 04:51 PM Thread Starter
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Not smoking at all, and the only sound I'm hearing is a sissssssss sound. This morning "when it was 20 degrees outside" my truck was surging for about a mile. It was like i was getting on and off the throttle significantly

99 F350 4x4 Crew Cab Duelly Flatbed
Automatic w John woods VB and HD converter
4:88 gears
Leveling kit
460,000 miles on truck 130k on motor
22.5 Peterbuilt wheels with 36" tires
Dp-tuner Chip
Gauges
4in Turbo Back Silverline Exh. into grand rock 6" mitercut stacks
Irate Diesel S366 turbo kit
Full Force diesel Stage 1 Injectors
DIY Intake
Terminator modded HPOP
Irate Diesel comp. fuel system with RR
Iron Bull Front Bumper with 12,5 winch
Reacon smoked cab lights and LED bed lights
nic2fast is offline  
post #10 of 24 Old 01-02-2008, 04:57 PM
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Ah your exhaust back pressure valve is probobly partially stuck closed.

2002 F-250 4x4 EC, SRW, SB
Auto 93,000 miles
DP Tuner F5
ATS Compressor and 1.0 Exhaust housing high flow back plate
Turbo Back 4" Silverline Exhaust Mbrp Muffler Delete
Isspro Trans,Pyro,Boost Triple Pod
Fumoto Oil Drain Valve
AIH Delete With Boost Fitting

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