According to the teacher

[scotty7751]

Well sitting in class today talking to my teacher the "Certified ford tech" he said that the marine 7.3L powerstrokes "SAME MOTOR" are running over 800HP just different fuel systems and more boost! He also said that the head gaskets on a f650-f750 are thinner and it takes your compression ratio up to 19.0 to1 instead of 17.5 to1 so that should be a increase of power!! if you want to take the time to. hope that might help some of yall.

 

[oi8228oi]

DAMN!! i want that fuel system on my truck

 

[DaveBen]

I raise the BS flag on that one. A thicker gasket will lower the compression ratio, not raise it.

Dave

 

[silverado3500]

to be fair, scott did say "thinner" gasket would raise the compression ratio. I like the sound of those marine 7.3

 

[whatabudro]

BS flag. Do you know how money it takes to make that kind of power? And I was also under the impression the compression ratio was more like 22.5-1

 

[Black_Mamba]

but a thinner gasket on the 6.0L means your going to puke easier. Now with the right bolt pattern and head design you can get away with it but I wouldn't even try it on my truck for sure.

 

[scotty7751]

well that is just what the teacher so i am goin buy his word. and the compression on a 7.3 is 17.5 to 1 according to all the sites i have seen. i might be some other internal stuff to but he said they run at 800hp.

 

[97CREWCABPSD]

dont forget they are fresh water cooled and can get rid of the heat by far faster than we ever could so i wouldnt doubt it if they are 800+hp

 

[lukecline]

i highly doubt it. Why? because they would have to put $2k+ billet rods, rev kit, big turbo (s), dual hpop, huge injectors, etc.. into every engine to make it hold and even then it wouldnt last running at a constant 800hp all day everyday. thinner gaskets = more compression, thicker = lower compression. the f 650 and f750's or what ever f series have the thinner hg's are also known for floating the valves when pushing more boost than stock due to the valve/ piston clearance being less.

Sounds like your teacher might want to read up on psd performance before making claims of 800hp psd's.

budro i believe that the old idi's were 22.5:1 if i remember correctly.

 

[bushpilot]

i highly doubt it. Why? because they would have to put $2k+ billet rods, rev kit, big turbo (s), dual hpop, huge injectors, etc.. into every engine to make it hold and even then it wouldnt last running at a constant 800hp all day everyday. thinner gaskets = more compression, thicker = lower compression. the f 650 and f750's or what ever f series have the thinner hg's are also known for floating the valves when pushing more boost than stock due to the valve/ piston clearance being less.

what you have to remember is RACE teams can afford these type of
cost, especially when theyve got sponsors and manufactures
backing 'em...not to mention what it does for advertising when
someone sees POWERSTROKE by Ford written across the "object"
as it flys around some track (in the lead or otherwise).

i deal w/ this kinda stuff all the time w/ motorcycles...race teams
dont care what the cost is, and they rarely worry w/ drivablity issues...
its Wide F'in OPEN or its parked & nothing in between matters....

Race teams only care if the motor holds together long enough to
1) win the race & 2) FINISH the race...and theyll do get both of
those items at ANY cost (hell they tear a winning or LOOSING motor
apart after every race just to figure out WHY it stayed together OR
didnt....)