turbo question

[EMDDIESEL]

Nice stacks!

 

[KWIKKURT]

I've have a good digital camera to use for a few days so I will take better pics.

 

[Wolfgang]

Turbo

Since we are talking turbo here can some one tell me exactly how the turbo interfaces with the engine to give me the boost and power I see on my gauge? I know this is a dumb question but can't learn if I don't ask

 

[Turbo Thom]

KwikKurt:

WOW... ... That is some stack... ... . The only thing I have to think about is my fiver. I had rather have the exhaust go under the trailer than into the sail area. I don't think the thing would ever come clean.

I have ordered the parts and am buying a small mig welder. Then listen.

Thanks everyone. To say the lest , this has been very educational, but don't give me a test on it.



Preston

 

[Diesel Freak]

wow, to think I stayed out of this one.



gotta add one thing.



hl=Ksys x V^2



hl=Head loss

V=Volumeteric Flow Rate

Ksys=system head loss coeffecient

 

[KWIKKURT]

Diesel Freak,



Sure know you start with a tease... ... . IN "MouthBreather" Terms please give use some food for thought on how that math applies so I know how many Dremel bits to ask Santa for. I have almost worn out the set on a (sensored) Turbo housing.





Turbo Tom, I just towed my two trailers over 600 miles and it was harder to scrub off the bugs! I have DD3's and a bombed turbo. It wasn't as bad as I expected even with a few Drag Races or two. Actually I think the soot is kinda like teflon



For ten years I helped wash exhaust trails off of Jets. It comes right off with good car wash soap and a little work!

 

[KWIKKURT]

That was PE-Comp on level#2... ... This is level#5

 

[Diesel Freak]

Originally posted by Diesel Freak



hl=Ksys x V^2



hl=Head loss

V=Volumeteric Flow Rate

Ksys=system head loss coeffecient

ok here goes this is a simple way to relate drive pressure to housing size and exhaust system performance.



assuming outlet pressure is constant 14. 7 psia



Ksys is constant for a specific housing size and exhaust system.



Head loss is the change in internal energy and pressure of a fluid as it passes through a system.



as V goes up, hl goes up exponentially. therefore with a constant outlet pressure (atmosphere) turbine drive pressure goes up exponentially.



so as we alrerady know to lower drive pressure a larger housing is needed at the expence of turbine response this lowers Ksys. To further lower Ksys downstream of the turbone outlet we need a tuned exhaust.



Ksys= Khousing/turbine+Kexhaust piping



but we already knew the result

 

[NVR FNSH]

and we wonder why people think diesels are noisy, smelly belch smoke and pollute like crazy... ...



Brian