cali vs fed engine
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Joined: Jan 2003
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From: Munroe falls, Ohio
cali vs fed engine
I'm looking at a 95 powerstroke but its in california, im in ohio but i'll fly there. What are the difference between a federal emissions engine and a california emissions engine. I read it has a cat, a fuel pulse dampner, and a different computer. Are there any other things different between the two?
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Joined: Jan 2006
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the only thing i know of is different injectors. i believe they were split shots versus single shots with the fed trucks. if they are split shots, they will ahve a different computer, or atleast different tuning on it. someone else will know more than me.
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
injectors are larger, computer is different for the split shots (mainly programming), pressure snubber on fuel pump, more power, bigger gains with a chip, well you see where i am going with this. the can make more power. when banks claims big pwoer gains for their power pack it was using a cali model. you couldn't get that added power from a fed model.
all the 94.5 to 97 had cats so thats a non issue.
all the 94.5 to 97 had cats so thats a non issue.
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
oh yeah your right I didn't catch that it was a 95. Itfox is correct everything I just said only applies to 96 and 97 trucks.
for earlier trucks I don't think there is any difference between fed and cali
for earlier trucks I don't think there is any difference between fed and cali
Post Fiend
Joined: Apr 2004
Posts: 12,835
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From: Silver Lake Dunes, MI
hey I don't claim to be perfect! sometimes I am just plain wrong! This times I just didn't read the original post good enough.
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Fleet Mechanic
Joined: Mar 2007
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From: Rio Rancho NM
TJ - What you say about the Cali trucks makes sense. I talked with Banks about this topic a month ago when I swapped my Stinger Plus chip for a Power Pack one. They told me they used a few Cali trucks and a few fed trucks and got pretty much the same power increases from each of them. I don't know if they were feeding me a line but that's what they told me. And the PP chip does seem a little peppier than the SP one, and I get a little more black smoke too. Do you think the fed injectors in my 96 can produce as much power as banks claims, with enough intake, turbo and exhaust?
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Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
No I don't think they will produce as much as a cali truck. the fed trucks have about 90cc injectors and the cali trucks have 120cc injectors. larger injectors mean more power. programming can't make up for mechanical limitation. if you look at banks ads for the 94.5 to 97 powerpacks they have a little disclaimer in there that they got these results on a 97 cali emissions truck. I don't know if all ads say that but I have seen a few of them.
Post Fiend
Joined: Apr 2004
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From: Silver Lake Dunes, MI
while the injector are bigger they are also a plit shot design which means they have 2 injection events per stroke cycle. the first is a pilot shot (small amount of fuel) then the main shot. somehow this pilot shot makes for better emission if I under stand it correctly.
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