[lownslow]

i know i had to move everything back 2 1/2" when i put the 12 valve into my '92 F250

on a superduty if you run electric fans would you have to do the same or not?

 

[94ttss]

I moved the trans back 5/8". I only slotted the holes in the crossmember, and I'm using the vistronic fan that comes on the common rail motors. You should be fine with the same dimension if you use a Destroked plate.

 

[bean]

I am not sure how you got away with 5/8ths Kai, I know mine needs atleast 2"s to clear Flex-A-Lite fans. I think I need another 1" 1/2 to clear a cr fan.

 

[lownslow]

so anyway you look at it- its all get moved back one way or another?

well atleast i shouldnt have to massage the firewall with the sledgehammer like i had to with the '92......i hope

 

[sniperonhigh]

Why would anyone want to put a cummins 12v in a superduty? I just can't see why, with all that is available for the 7.3 - I bet there is a 7.3 somewhere that is capable of 650hp on fuel only, can a 12 valve cummins do that? I would never consider doing such a thing, or my name isn't Sam.

 

[lownslow]

for what big oil and a injectors cost i can have a 12 vavle and settin in my engine bay(if i do all the labor again)
then you add the cost of turbo(s), head studs, connecting rods, pistons, head work....... the 12 valve is to be had a lot cheaper, more reliable, and better fuel economy to boot:gun:

 

[sniperonhigh]

lol, I know - and my name isn't Sam

I would love to have a SD with a 12 valve cummins, that would be awesome!

 

[lownslow]

just the ease to work on would be worth it!

(been layin over the engine workin on the turbo all day)

 

[Cat_Rebel]

Put an air shut off on the intake while your at it. Always fun when one starts to run away on you!

 

[RSP]

Always fun when one starts to run away on you!

So, thats a real common thing, How many have you seen do this?

 

[Aljay]

So, thats a real common thing, How many have you seen do this?

Haha if you screw with the pump maybe (putting my learned logic I almost learned the hardway on my 3406c Mech. pump) to use.

 

[Cat_Rebel]

So, thats a real common thing, How many have you seen do this?

My STOCK 95 12v did twice on me. The timing was off because the dowl pin had fallen down into the timing gears & cracked the case. I sealed up the crack & was out driving it around (didn't know anyone with a timing kit). I let off the throttle & it started to rev up all by itself. I was luckly to have a good fuel shut off solonoid so it shut off when I turned off the key. Sheer luck would have it I was going down hill & my buddy's driveway was at the bottom of the hill so I coasted in to his driveway. I had to start it up again to move it & it ran away on me again trying to turn it around & once again I was able to shut it down before anything really fun happened. But check with other people who deal with 12v Cummins. I sure you'll hear of a runaway story or two. You guys can do as you wish, but my next 12v WILL get an air shut off because of the black cloud that seems to follow me around.

 

[ckbed]

I think you HAVE to have one in some sled pull circuits, if'n you were to do that kind of crap

 

[Cat_Rebel]

I think you HAVE to have one in some sled pull circuits, if'n you were to do that kind of crap

They usually hook em up to the sled in case the truck breaks free of the sled it will kill the engine.

 

[jcc01]

Never seen an engine run away, just the driver!!!:hehe:

 

[Cat_Rebel]

Never seen an engine run away, just the driver!!!

When they see the cops on the track they just jump out & run! :gethim:

 

[DarkShadowDiesel]

I think you HAVE to have one in some sled pull circuits, if'n you were to do that kind of crap

an air shut off is required in almost all sled pull circuits, and all DHRA events i believe

 

[Cat_Rebel]

It's a good idea anyways!