R34 Gtr Build

[BOBBYr34]

[BOBBYr34]

Ill let the pics do the talking 8)

TURBO DUMP VENTURI

[BOBBYr34]

JOHN SKOLA

[BOBBYr34]

TREVOR motor builder

[BOBBYr34]

[BOBBYr34]

[BOBBYr34]

[BOBBYr34]

Exhaust Dump STEPHEN BEST

[Piggaz]

Unreal!

When's it going on the rollers?

[Blitz]

Looks sensational Bobby, nice work!

[Mohsen]

This is too intense

[copycutter]

Epic. Can't wait to see what the venturi can do. Great build Bobby.

[BOBBYr34]

Unreal!

When's it going on the rollers?

No rush to get on the rollers, the intake system is been made using two nismo AFM.

[BOBBYr34]

Looks sensational Bobby, nice work!

Thank you

[Piggaz]

Why the decision to use AFM's and not a MAP sensor?

[BOBBYr34]

Why the decision to use AFM's and not a MAP sensor?

Ahh Paul you are asking a very dangerous question.

MAP cannot measure air volume, and pressure is not related to air volume .

[black bnr32]

air volume is irrelevant. pv=nrt

Edited June 29, 2013 by black bnr32

[NIS.26L]

A law that describes the relationships between measurable properties of an ideal gas. The law states that P × V = n × ® × T, where P is pressure, V is volume, n is the number of moles of molecules, T is the absolute temperature, and R is the gas constant (8.314 joules per degree Kelvin or 1.985 calories per degree Celsius). A consequence of this law is that, under constant pressure and temperature conditions, the volume of a gas depends solely on the number of moles of its molecules, not on the type of gas. Also called universal gas law

Looks like volume is relevant in the formula to me

[BOBBYr34]

A law that describes the relationships between measurable properties of an ideal gas. The law states that P × V = n × ® × T, where P is pressure, V is volume, n is the number of moles of molecules, T is the absolute temperature, and R is the gas constant (8.314 joules per degree Kelvin or 1.985 calories per degree Celsius). A consequence of this law is that, under constant pressure and temperature conditions, the volume of a gas depends solely on the number of moles of its molecules, not on the type of gas. Also called universal gas law

Looks like volume is relevant in the formula to me

Correct with the formula. No doubt this is for a ideal gas.

However your map sensor is the issue , I should of explained it better. A map sensor cannot measure air volume and air speed. You can have a system where you have air speed and volume and no pressure , this is where you fall into trouble using a map sensor. Also map is a fixed table, AFM is actual

[GTRNUR]

So the short answer is that MAF provides you with a more stable tune. Less variation due to subtle changes in air temp and atmospheric pressures. I'm probably switching back to a 4" MAF and a ford lightning sensor with my next setup for that exact reason.

That is unless your going to be doing something radical that uses MAF and MAP...

Edited June 29, 2013 by GTRNUR