negative pressure supercharging

papagoines

Orang Tua
Senior Member

papagoines

Orang Tua
Senior Member
Feb 6, 2006
2,024
376
1,683
Rawang/Selangor
Errm.. just read it and it makes my head spin...

hi all,

check this one out:

Negative Pressure Supercharging is a highly advanced Thermo Fluid Dynamic Process that makes the engine supercharge itself from the inside and it uses NO air pump.

ive heard of supercharging and turbocharging an engine but this is new.

i couldn help but to think that this is ultimate street engine upgrade rather than turbo or supercharge since it peaks out the power of a stock engine in 0 - 4500rpm

do we have this in malaysia??
 

^pomen_GTR^

7,000 RPM
Senior Member

^pomen_GTR^

7,000 RPM
Senior Member
May 13, 2010
7,509
1,690
1,713
The Mines
i think that was actually engine scavenging effect during exhaust stroke where exhaust gas coming out from combustion chamber and at the same time due to high out-flow, the intake valve open slightly and allow fresh new intake air+petrol mixture to be sucked inside combustion chamber by the negative pressure of that exhaust gas...


in easy word..this use bigger valve overlap (variable in vvt equipped engine)...so nothing new...that was just american only discover how much diff. they can make if playing with engine fine tuning apart from their crude big CC of v8 muscle.... :biggrin:

*btw correct me if i'm wrong :adore:
 

papagoines

Orang Tua
Senior Member

papagoines

Orang Tua
Senior Member
Feb 6, 2006
2,024
376
1,683
Rawang/Selangor
I thought so myself... but me no expert :adore: so wait for sifu to correct us
i think that was actually engine scavenging effect during exhaust stroke where exhaust gas coming out from combustion chamber and at the same time due to high out-flow, the intake valve open slightly and allow fresh new intake air+petrol mixture to be sucked inside combustion chamber by the negative pressure of that exhaust gas...


in easy word..this use bigger valve overlap (variable in vvt equipped engine)...so nothing new...that was just american only discover how much diff. they can make if playing with engine fine tuning apart from their crude big CC of v8 muscle.... :biggrin:

*btw correct me if i'm wrong :adore:
 

^pomen_GTR^

7,000 RPM
Senior Member

^pomen_GTR^

7,000 RPM
Senior Member
May 13, 2010
7,509
1,690
1,713
The Mines
yeah..wait for other otai to comment....

(*i lazy to read that article throughly)
 

D7zul

2,000 RPM
Senior Member

D7zul

2,000 RPM
Senior Member
Feb 24, 2011
2,697
848
713
Shah Alam
negative pressure supercharging?

i've read through the site.. and it seems like a marketing gimmick..

why?

Supercharge = Force Induction = Positive Pressure

Therefore, Negative Pressure Supercharging = No Pressure = Naturally Aspirated..

What they trying to say is 'Tune ur NA engine to a higher degree' in a very complicated way

:biggrin:
 

upontheriversky

Known Member
Senior Member

upontheriversky

Known Member
Senior Member
Thread starter
Dec 31, 2007
275
82
1,528
the physics of the operation is nothing new, we all know why it works and can make sense out of it but i think the approach is new, ive never seen any performance workshop here would thought of using small header primary and earlier intake valve closing to achieve performance.

typically, they'll say go bigger in everything for performance which i think is not true :D e.g i believe smaller intake ports would make more potential hp than bigger ports

i guess theres nothing like this yet in malaysia eh??