What injector to match a 6.7

cjfarm111 · Oct 15, 2016

Ok well I'm thinking the lower torque curve of an online would be better suited for a four speed vs V8 but I guess I'm wrong

Swaan · Oct 15, 2016

m j said:
V8 configuration has nothing to do with it, more gears are always better.
there is no advantage to an inline

Your wrong mj.

Inline 6 has longer stroke and typically will always make more torque down low over a similar cubic inch v8 every time. . Simple physics there bud.

Swaan · Oct 15, 2016

cjfarm111 said:
Ok well I'm thinking the lower torque curve of an online would be better suited for a four speed vs V8 but I guess I'm wrong

Your not wrong.
Mj spoke before thinking

oke:

gnxtc2 · Oct 15, 2016

sootie said:
even if the truck got to the stage where it has the same power as a bone stock six seven, it will still ride like a log wagon and be a loud, smelly truck. Nevermind safety features, bigger brakes, tow ratings etc

Nope...ride quality between my OBS and 6.7 are very close empty. Louder...yes, smelly.....no.

When I tow the GN with the OBS, you have to really pay attention as things can get out of control. The 6.7 is dually and tows the GN like it's not even there.

Billy T.
[email protected]

cjfarm111 · Oct 15, 2016

I think I would try a five speed if someone could make one work on a 7.3. Would be a killer tow setup that's for sure

m j · Oct 15, 2016

ghohouston said:
That is not a true statement, they have considerably less moving parts.

what?

m j · Oct 15, 2016

Swaan said:
Your wrong mj.

Inline 6 has longer stroke and typically will always make more torque down low over a similar cubic inch v8 every time. . Simple physics there bud.

simple myth there bud.

nothing to stop a v8 from having just as much stroke, has nothing to do with the bank angle.
and if the cubic inches are similar then the engine with more cylinders has more valves to feed the inches air.

'torque down low' has nothing to do with lining up cylinders in a row.

and learn the difference between your you're and yore

ja_cain · Oct 15, 2016

m j said:
simple myth there bud.

nothing to stop a v8 from having just as much stroke, has nothing to do with the bank angle.
and if the cubic inches are similar then the engine with more cylinders has more valves to feed the inches air.

'torque down low' has nothing to do with lining up cylinders in a row.

and learn the difference between your you're and yore

Yeah, until you start looking at bore and stroke numbers then you are just making poor assumptions. That being said, motors that are designed to have high torque output are probably going to have certain bore vs stroke numbers to accommodate that.

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Swaan · Oct 15, 2016

I said 2 engines of comparable cubic inch displacement.
A 6.0 powerstroke and a 5.9 cummins for eg.
What engine do you think has a way longer stroke.
The cummins . Thats why it develops way more torque down low over the V8.

Not a myth at all.

Why do you think OTR trucks almost all use the straight 6 design. Its called torque.

Some days i look at some of your posts MJ and think you actually know a thing or 2. Then you post **** like this and im like nope, hes still an idiot

ja_cain · Oct 15, 2016

Swaan said:
I said 2 engines of comparable cubic inch displacement.
A 6.0 powerstroke and a 5.9 cummins for eg.
What engine do you think has a way longer stroke.
The cummins . Thats why it develops way more torque down low over the V8.

Not a myth at all.

Why do you think OTR trucks almost all use the straight 6 design. Its called torque.

Makes sense to me. That being said, no reason they couldn't make a long stroke smaller bore v8 that makes more torque down low. Kind of like a sbc 350 with a 400 crank. Then you off cut the crank and use small journal rods to give it more stroke. Good truck motor, but not so good with rpm's due to the poor rod to stroke ratio.

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m j · Oct 15, 2016

I think it is stronger pistons connecting rods and block that allow the 6bta to make more low rpm cylinder pressure, and its the fuel system that lets it make more power at a higher rpm then the heui motors

I dont credit the stroke with the inability of the 6.0 to make low rpm power

low rpm and power dont really go together

6.0 Tech · Oct 16, 2016

Ill throw.something into this slight derail... Inlne motors dont have opposing torque forces that v configured motors do, thereby helping increse their torque output down low...

Dirtclod · Oct 16, 2016

Since we're on this subject I have a question for some of you guys. Now for the most part I'm extremely happy with the way my 7.3 performs. The only issue I have is when I have a load on the back like my travel trailer and on a incline, I really have to mash down on it to get it going. And it really heats up my tranny. What can I do to fix this issue?

gnxtc2 · Oct 16, 2016

Fix the trans, either the trans is slipping or the converter is not fully locking.

Billy T.
[email protected]

Dirtclod · Oct 16, 2016

Ok! I'll call the folks where I got it and see what they can do. I still have another 2 months on warranty

Dirtclod · Oct 16, 2016

I'm pretty sure it's the converter. It's an HD built tranny and I think they use a motor home converter in it. What would be a solution for the tc to lock up?