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Go Back   Ford Powerstroke Diesel Forum > Ford Powerstroke 99-03 7.3L Forums > 99-03 7.3L General Discussion
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  #1 (permalink)  
Old 07-12-2007, 01:27 PM
CUMMINS_KILLA99 CUMMINS_KILLA99 is offline
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highest 7.3 hp numbers

just curious to know whats the most horsepower dynod out of a 7.3?
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Old 07-12-2007, 02:09 PM
Ditty Ditty is offline
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I THINK it's somewhere around 800-900....not sure though. If you drop $60-70K into it....I'm sure you can push 1000+ out of it...expecially with the new Common Rail rumors floating around. If your looking to build the biggest and baddest 7.3L, go through everyone's website and order the most expencive parts you can find. Ohh...also plan for Twins.
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Old 07-12-2007, 02:21 PM
CUMMINS_KILLA99 CUMMINS_KILLA99 is offline
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just wanted to know what kind of hp numbers a 7.3 would max out at
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Old 07-12-2007, 02:51 PM
WEWILLE WEWILLE is offline
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I'm sure you can push 1000+ out of it...expecially with the new Common Rail rumors floating around.

I have not heard that, is it just a system you can put on a 7.3?
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Old 07-12-2007, 04:03 PM
Ditty Ditty is offline
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As far as I know...it's going to be a bolt on kit like Big Oil and injectors. It's probably going to be CRAZY expensive but if you want the big numbers...it'll probably be nessesary. Think of a V8 Cummins with 7.3 liters!!!!

This is all specualtion, b/c everyone who is working on a kit is being really tight lipped about it.
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Old 07-12-2007, 04:10 PM
WEWILLE WEWILLE is offline
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That sounds interesting, i cant wait to see someone get it going.
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Old 07-12-2007, 04:24 PM
CSIPSD CSIPSD is offline
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Dockboy was the highest HP 7.3 last I heard... at 725 on Nos... But he is going CR 5.9 now...
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Old 07-12-2007, 04:28 PM
SgtStroked7.3 SgtStroked7.3 is offline
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i know this doesnt answer the question but i am really shocked that this BIG engine cant pull some HUGE numbers. i know that its 444ci and i have seen 454ci chevy big blocks with carbeurators pull bigger hp numbers with less money... i was just suprised when i heard that 500 was a feat.
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Old 07-12-2007, 04:30 PM
ABOBB ABOBB is offline
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Actually, Joe is basically right, with Dockboy. That's the highest number I've heard of on a dyno. Snow White and Elmo haven't dyno'd that I know of.

There is a 7.3 based engine that has gone over 1500, though. Ben Miller's Double Overtime pulling truck powerplant. Not a lot left of the original though, it's been converted to mechanical injection, has two huge turbos, and lots of other work. Rumored cost was $150K, and it's nowhere even close to having the manners needed to use on the street.
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Old 07-12-2007, 04:53 PM
Lord Tauk Lord Tauk is offline
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Displacement doesn't always = Cheap/Easy Power.
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