Want to turn a 7.3 to/past 4000rpm? - Ford Powerstroke Diesel Forum
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  #1  
Old 04-14-2009, 03:55 PM
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Want to turn a 7.3 to/past 4000rpm?

Take a looky at my new springs. Don't worry about open/seat rates.


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Old 04-14-2009, 04:00 PM
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nice..... ..
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Old 04-14-2009, 04:03 PM
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Fancy. Are those prototype's or just 910's or what ever there called?
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Old 04-14-2009, 04:06 PM
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Quote:
Originally Posted by 2005F250 View Post
Fancy. Are those prototype's or just 910's or what ever there called?
910's look just like stockers...


These don't play nice on the street. Pretty much race use only.
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Old 04-14-2009, 04:08 PM
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Ok, so the valve train can handle over 4000, now what about the rest of the motor?
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Old 04-14-2009, 04:09 PM
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Quote:
Originally Posted by Jake View Post
Ok, so the valve train can handle over 4000, now what about the rest of the motor?
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Old 04-14-2009, 04:10 PM
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so those go over the stock springs? do you have to take the head off again?
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Old 04-14-2009, 04:16 PM
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Quote:
Originally Posted by Jake View Post
Ok, so the valve train can handle over 4000, now what about the rest of the motor?

Mine will.

Quote:
Originally Posted by bockhold View Post
so those go over the stock springs? do you have to take the head off again?

Completely different setup. Heads/valves have to be prepped for these. Good thing I have more than 1 set of heads laying around...
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Old 04-14-2009, 04:17 PM
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Give me a bit, I'm trying to clean up the rest and take a pic of all 16 together...
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Old 04-14-2009, 04:17 PM
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And why don't they "play nice on the street?" I didn't know different springs made a difference.
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