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235 HP model 7.3

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Old 04-02-2010, 02:42 PM
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235 HP model 7.3

i think i got a lower powered version of the 7.3 when i replaced the engine in my truck its got a green label but its covered up with dirt and hadn cleaned it off yet im barely getting 16 LBS boost at 3100 rpm i think there is something wrong but i have new up pipes intercooler and i checked the boots and didnt find any holes what do you think is wrong
 
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Old 04-02-2010, 02:52 PM
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16 to 18 PSI is all you're going to see without tuning. Now, if you are running a tuner then something is wrong.
 
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Old 04-02-2010, 02:52 PM
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16 psi from a stock motor isn't bad at all. I know there were different power levels of 7.3s. The Excursions were only rated 225 hp...
 
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Old 04-02-2010, 02:53 PM
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What year is the engine? As long as it's a 99.5 or later, it's the same as all the others. Just tuning differences.
 
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Old 04-02-2010, 02:59 PM
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its a 2000 model it was being sluggish the other day and i hooked up the WDS to it to monitor mgp i got around 3lbs at 65 jus crusin and 4 going up hills i thought it was low but i guess not other than that its a great engine glad to know its alright i got the AIS kit and a 4in turbo back straight pipe im scared to chip it though
 
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Old 04-02-2010, 03:00 PM
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check your wastegate actuator tomake sure the spring did not go bad. just changed mine out what a diffrence in boost. what does orange lable indicate ?
 
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Old 04-02-2010, 03:01 PM
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Boost sounds about right, depending on the hill. Mine will go up to 6-8psi, depending on how long & steep the hill is. Why are you scared to chip it?
 
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Old 04-02-2010, 03:02 PM
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mine is a green label i think it came out of a 450 at one time but i got it it come out of a 250
 
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Old 04-02-2010, 03:03 PM
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Originally Posted by Izzy351
Boost sounds about right, depending on the hill. Mine will go up to 6-8psi, depending on how long & steep the hill is. Why are you scared to chip it?

i had one that i bought from a dude one time and it was a total nightmare i had to replace the injectors and the cups before 100,000 miles cause it kept burning the injector up
 
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Old 04-02-2010, 03:13 PM
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You had one injector that kept failing?? Sounds like you had other issues possible. What chip, if I can ask? Custom tuning is the way to go anyway, but I'm just curious...
 
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Old 04-02-2010, 03:18 PM
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Originally Posted by Izzy351
You had one injector that kept failing?? Sounds like you had other issues possible. What chip, if I can ask? Custom tuning is the way to go anyway, but I'm just curious...

im not real sure what it was they pulled it before i got it, number 3 injector cracked and hydrolocked for some reason
 
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