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Go Back   Ford Powerstroke Diesel Forum > Ford 08 and newer 6.4L Powerstroke Forums > 6.4L Performance Parts Discussion
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6.4L Performance Parts Discussion What has or has not worked for you?

 
       

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Old 07-08-2007, 06:39 AM
99gt 99gt is offline
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Tuner on a 450

So i was wonder since the chassis cab 450's are rated at 25hp less then regular models will a tuner be able to work on the CC trucks? Think there would be any side affects? There has to be a reason why these trucks are only rated at 325hp..i'm think an extra 100hp might break something
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Old 07-08-2007, 09:38 AM
suprcynic suprcynic is offline
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What's different that they are rated lower?
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Old 07-08-2007, 03:18 PM
99gt 99gt is offline
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dunno...all i know is the CC are rated at 325 and 600
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Old 07-09-2007, 02:56 PM
WOOL-PULLER WOOL-PULLER is offline
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i think it has something to do with being a commercial vehicle. they figure it will be in a fleet getting beat on everyday all day i guess. dont know about the tuner but i would imagine it would work.
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Old 07-09-2007, 09:09 PM
Cj Ford Cj Ford is offline
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I know when I program my truck with the superchips flashpaq it asks if it is a F450 or F550 befor it lets me tune it
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Old 07-15-2007, 06:22 PM
SpeedE55 SpeedE55 is offline
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Quote:
Originally Posted by suprcynic View Post
What's different that they are rated lower?
The 450's are geared higher (either 4:30s or 4:88s vs 3:73s) therefore it's Ford's assumption that the higher gearing compensates for the lower HP and torque. I have a 450CC w/ 4:88s and I think its BS.
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Old 07-24-2007, 01:07 PM
Glasseater Glasseater is offline
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it makes some sort of sense though... the 4.88's will give you moer torque at the wheels which might compensate for like 20 ft lbs that was lost in the decrease of power... i personally think the 450 with 4.30's would be the way to go since it's got the extra torque from the 4.30's plus the 350/650 at the flywheel so you're puttin out bigger torque numbers then any other configuration
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Old 07-24-2007, 02:15 PM
djordan1184 djordan1184 is offline
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Quote:
Originally Posted by 99gt View Post
So i was wonder since the chassis cab 450's are rated at 25hp less then regular models will a tuner be able to work on the CC trucks? Think there would be any side affects? There has to be a reason why these trucks are only rated at 325hp..i'm think an extra 100hp might break something
As a matter of fact I just spoke with a buddy of mine at wawa alittle while ago ,and he just got a used 450 with 100 thousand on it,It has 3 sct tunes for it and he said it runs great and if he puts the highest tune he has for it,that its like a race car and to say that about a 450 is doing somthing.For got it's got the 7.3 in it
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