6.7 C/R to VE conversion OBSERVATIONS.

[Begle1]

I can't see how putting a VE on a 6.7 would ever be worth the effort.

THAT kind of comment is why it's WORTH the effort.
Electronics are your enemy, DO NOT CONFORM, delete, delete, DELETE!

Mark.

If you're just looking for reliable power, there are a whole lot of things you can do before it's worth it to put a VE pump on a 6.7. Even if you're one of us lost little pigs looking for reliable power with a VE pump instead of a P-pump, there are a whole lot of things we can do before increasing displacement.



But, if you had a VE pump and a 6.7 liter block on a table and were building a new engine, I guess it wouldn't be a too-large waste of time. But if I was charting out an engine build, converting over to a 6.7 liter block would be pretty far down the priority list.

[Mark Nixon]

Nothing Ventured means Nothing Gained.

If I didn't at least look at it closely and try it, it would eat at me until I did.
If I don't try, then I see others have done what I only THOUGHT of doing (and had the ability to do), then it would eat at me because I didn't take the opportunity to figure it out for myself.

On the same token, I am not afraid to share info, either.

Mark.

[crewcab59]

Nothing Ventured means Nothing Gained.

If I didn't at least look at it closely and try it, it would eat at me until I did.
If I don't try, then I see others have done what I only THOUGHT of doing (and had the ability to do), then it would eat at me because I didn't take the opportunity to figure it out for myself.

On the same token, I am not afraid to share info, either.

Mark.

these are my thoughts exactly.

[Remps]

You should check out the January 2011 issue of diesel power. There's a VP44 truck with a '05 block, '00 pistons, offset ground crank, 6.4 litres displacement, 21:1 compression, twins @ 80 psi boost, and 900 hp. No O rings or fire rings, just 13mm headstuds @ 175 ft lbs. I bet it starts on the 1st crank. http://www.dieselpowermag.com/features/dodge/1101dp_black_sheep_6_4l_cummins_powered_anomaly/index.html

[Mark Nixon]

Sounds like he threw a LOT of $$ at that one!
For the most part, this appears to be a boltable deal, with the exception of the timing case.

I could care less about tons of boost or fuel, all I care is that it runs reliably.

"I have no desire for the black fire!"

Mark.

[Richie O]

How the hell is he running 80 psi of boost at 21 to 1 compression? Seems pretty high boost for that ratio.

[cougar]

I can't see how putting a VE on a 6.7 would ever be worth the effort.

THAT kind of comment is why it's WORTH the effort.
Electronics are your enemy, DO NOT CONFORM, delete, delete, DELETE!

Mark.

Yah, I remember getting ridiculed for not wanting to use an electric fuel pump and trying to figure out how to replace my electric starter with an air starter. Some one said I should park it on a hill or use a horse to pull it.

[Mark Nixon]

Yah, I remember getting ridiculed for not wanting to use an electric fuel pump and trying to figure out how to replace my electric starter with an air starter. Some one said I should park it on a hill or use a horse to pull it.

Yeah, that would have been me on the starter, and what you call riducule was meant as a joke, but apparently you have a hard time with things like that.
As far as the electric fuel pump, I recommend those hands down over the POS stock lift pump any day of the week.

Sometimes it DOES pay to have a little technology on your side.

A hill to start it off of doesn't hurt, neither.

Mark.

[Mark Nixon]

How the hell is he running 80 psi of boost at 21 to 1 compression? Seems pretty high boost for that ratio.

Those number cerainly don't jive for "no 'O' rings" and it's hard to believe that just head studs can make that much difference with the claimed boost.
But it's a "Magazine Truck", they can do ANYTHING with those things.

Mark.

[cougar]

Yah, I remember getting ridiculed for not wanting to use an electric fuel pump and trying to figure out how to replace my electric starter with an air starter. Some one said I should park it on a hill or use a horse to pull it.

Yeah, that would have been me on the starter, and what you call riducule was meant as a joke, but apparently you have a hard time with things like that.
As far as the electric fuel pump, I recommend those hands down over the POS stock lift pump any day of the week.

Sometimes it DOES pay to have a little technology on your side.

A hill to start it off of doesn't hurt, neither.

Mark.

I knew that, I just though I'd take the opportunity to rub it in a little. A hill is nice if you have one, saves on fuel.

[Remps]

There's people making 1000+ hp on stock head bolts torqued to 150 ft lbs, no o-rings. Block @ head gotta be flat. There's no reason 13 mm studs @ 175 ft lbs wouldn't hold. Although I don't understand why one wouldn't run o rings, just for peace of mind.

[Mark Nixon]

This is on hold until I can find a COMPLETE VP top end to put on it.
I need everything from the valve cover to the tops of the pistons and an exhaust manifold, too.

If anyone here knows of anything, I have parts to swap, or some cash could be thrown to acquire it, too.

Funny thing is, I have been offered TWO MORE usable 6.7 shortblocks for a good price, so if I can make this fly, there may be another conversion right after this one.

Mark.

[ahale2772]

will a 12v sit right on top with no issues? would you just use a 6.7 HG?

[cougar]

will a 12v sit right on top with no issues? would you just use a 6.7 HG?

Didn't they change head bolt patterns some where along the way?

[swank]

MARK!!! Greenspeed would be interested in one of those blocks!!! Please send me some details ASAP.

Dave