Volume vs pressure

[Guest]

For those of us still discussing this, P1V1T2 = P2V2T1 that’s Boyle's law!!!!

(Copied)(Constant temperature for a fixed mass, the absolute pressure and the volume of a gas are inversely proportional, the product of absolute pressure and volume is always constant)

and this law is used to calculating the volume and pressure of internal - combustion engines. But enough of this it’s an automobile form not a chemistry or mathematical form

nice post pappu

[Guest]

i would drive it, it would be ok at very low boost! If you don’t have self control well enough of it to not boost past the truck then trailer it. Hmmm contradicting myself here but reading over what I just said I would trailer it to as myself control is minus a 1000, I want to get pass and fast, nay I will get pass and fast

[dubbedup]

I have good self control, i would jsut sit on 90km/h behind teh truck to ensure i didnt eat my motor. hahahaa

[Guest]

Let us know how the test drive goes, when will this be by the way?

[dubbedup]

um prolly early next year unless people get there a in g...also have to book a time for NZefi as last time i went there was a 2 month lead time.

I am currently building my adapter and split rails and all the rest of the stuff to go with it, all on a dummy engine untill im ready to go.....then it will be mission on.....

[Koom]

 WiLd02StI said:

For those of us still discussing this, P1V1T2 = P2V2T1 that’s Boyle's law!!!!

(Copied)(Constant temperature for a fixed mass, the absolute pressure and the volume of a gas are inversely proportional, the product of absolute pressure and volume is always constant)

and this law is used to calculating the volume and pressure of internal - combustion engines. But enough of this it’s an automobile form not a chemistry or mathematical form

nice post pappu

You're still stuck on a fixed mass principle.

As VE changes, the mass of air in the combustion chamber changes (if pressure remains constant).

Which is why a bigger turbo will be able to flow more air through the engine at say 15 psi than a smaller turbo also at 15 psi as the larger turbine side will increase the VE by reducing backpressure in the exhaust i.e. making the engine a more efficient "air pump"

I do feel that we are all pretty much on the same side in this debate though (just looking at it from differing angles) and it has gotten away from the point that Dubbedup should really trailer the car 350kms...

[dubbedup]

Yeah, and if i do trailer it, it means i can set up the injectors myself at home rather than paying someone else to do it...

[Guest]

I concur that we are on the same page with different colourer pens writing the same thing, as I just re read everything myself, hence why I kind of stopped with the last post I did, but YOU had to have the last say did you, that bugs me

[dubbedup]

who me or koom?

Jump into the grinding gears thread post it up...hahaha

I hate how dubbed/koom always has to have the last post....j/k

[Koom]

I actually thought you were on the right track a page or two ago, but then theoretical maths/physics (massless ropes/frictionless pulley's type stuff were dynamic situations get forgotton about or tend to zero) got in the way of real world stuff and I didn't want to leave the information half finished. Personally I think this has been one of the more interesting discussions on here lately and wish this type of stuff came up more often. Admittedly I should word stuff more in the form of questions to keep the ball rolling

[dubbedup]

hahaha, it all started cos i needed someone with more experiance than me (cheers guys!!!)

[Koom]

 dubbedup said:

who me or koom?

Jump into the grinding gears thread post it up...hahaha

I hate how dubbed/koom always has to have the last post....j/k

Its me ;D

I think Me and WiLd02StI have had a run in in a previous life of his

[Guest]

Being extremely open and honest.. admittedly loved every part of this post the inner geek was thriving in its element... Now part two! perpetual motion anyone & the laws of thermodynamics? Jokes aside look forward to more run-in’s Koom it was a pleasure

[Koom]

Perpetual motion may be pushing it for a discussion as I know from my point of view that I've been too Institutionalised in my thinking lately. I had some ideas back in the day that I knew were fruit looped but would have been interesting to do some calc's to see if I could work myself into a tight circle.

Maybe drag up an old thread on wind turbines vs Nuclear power vs any random alternatives. BTW I'm stoked that they put a stop to the windfarm on the Lammermoor Range down in Central Otago.

[pl0x]

so in english

a bigger turbo does flow more air at the same psi because its more efficient?

[Guest]

all else being equal a bigger turbo makes the engine more efficient (breath better thus make more torque) at higher rpms.

HP = Torque x RPM ÷ 5252