Exhaust and Boost question. - Ford Powerstroke Diesel Forum
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post #1 of 11 Old 05-12-2009, 08:42 PM Thread Starter
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Exhaust and Boost question.

I just reinstalled my TW chip into my truck. It currently has the stock exhaust until next week when i will be putting on the MBRP turbo back 4 inch.


Boost at WOT on extreme with the stock exhaust is 22.

I was wondering if the bigger exhaust will increase my boost???????? I was seeing 26 to 27 in my 2000 with the same set up ( 4 inch )


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TW 6 pos. chip......reinstalled
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post #2 of 11 Old 05-13-2009, 08:03 AM
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No... you must have a boost leak or a week wastegate or something.

1999.5 Ford F-250 7.3l 4x4 PSD DI Short block, Ported Heads, Head studs, Over size valve springs, DI Push Rods, DI RR, GTP38R, GSL 392 fuel pump with 3/8 line feeding 238cc Injectors from Nate @ Unlimited Diesel and Live Tuned By Matt @ Gearhead Automotive


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post #3 of 11 Old 05-13-2009, 08:09 AM
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What other tunes do you have besides extreme?

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post #4 of 11 Old 05-13-2009, 08:32 AM Thread Starter
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street,stock,hi idle, light tow,daily


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Traded in the 00'


TW 6 pos. chip......reinstalled
Isspro gauges.....Finally in 04-27-09
DIY Tymar.....04-21-09
Zoodad.........04-22-09
Foil delete.....04-22-09

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next:

Leveling kit--delayed-wife totalled new car!!!!!!!!!!
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4" turbo back MBRP....installed !
305/70/16 Goodyear Wrangler Silent Armors-- done yesterday
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post #5 of 11 Old 05-13-2009, 08:52 AM
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Sounds like a boost leak. Check IC boots and up-pipes. I hit 20 at WOT and im chipless

99.5 F-250 Lariat 4x4 CC
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post #6 of 11 Old 05-13-2009, 09:20 AM
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I would like to knoe the boost you are making in street race.

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post #7 of 11 Old 05-13-2009, 09:43 AM Thread Starter
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Hey blowin you dont have anything on your truck now??????? I have a bullydog single position chip that will help your mileage pretty good if you want to use it till u get your chip.


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Traded in the 00'


TW 6 pos. chip......reinstalled
Isspro gauges.....Finally in 04-27-09
DIY Tymar.....04-21-09
Zoodad.........04-22-09
Foil delete.....04-22-09

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next:

Leveling kit--delayed-wife totalled new car!!!!!!!!!!
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4" turbo back MBRP....installed !
305/70/16 Goodyear Wrangler Silent Armors-- done yesterday
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post #8 of 11 Old 05-13-2009, 09:43 AM Thread Starter
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Ill check my boost on street and post it up.


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Traded in the 00'


TW 6 pos. chip......reinstalled
Isspro gauges.....Finally in 04-27-09
DIY Tymar.....04-21-09
Zoodad.........04-22-09
Foil delete.....04-22-09

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next:

Leveling kit--delayed-wife totalled new car!!!!!!!!!!
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4" turbo back MBRP....installed !
305/70/16 Goodyear Wrangler Silent Armors-- done yesterday
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post #9 of 11 Old 05-13-2009, 09:48 AM
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Quote:
Originally Posted by Drepka View Post
Hey blowin you dont have anything on your truck now??????? I have a bullydog single position chip that will help your mileage pretty good if you want to use it till u get your chip.
Pm me some info. Im interested till i can get my custom tunes.

99.5 F-250 Lariat 4x4 CC
-Isspro's in A-pillar
-5" TB into 6" miter
-Recon smoked cab lights
-Bullydog "mileage" chip *Matts tunes in 2 weeks*
-Warn hubs
-DIY intake, Foil delete
-Hankook MT 285's
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post #10 of 11 Old 05-13-2009, 10:21 PM
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in my 01 i stay right between 16-18. ive got an afe cai and 4" mbpr exhaust. is that normal with no chip?


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