[Diy_efi] RE: 18t injector upgrade to more horses

[Scott F. Williams]

Perry, what exactly do you mean by your statement:
"Changing the injectors will get you nowhere without drastically changing
all of the motor."

Revamping the 1.8T top to bottom is not necessary to realize gains with
bigger fuel injectors. Rather, it (like any other motor) will need more fuel
once the dutycycle of the stock injectors is pushed beyond a safe point like
85%. The 1.8T seems to have an astonishingly low brake specific fuel
consumption, but that doesn't mean that it can outright defy the laws of
chemistry and physics.

If your logic were solid, the factory wouldn't install bigger injectors in
the 150, 180, and 225hp versions. The substantial difference between the
factory 150/180hp and 225hp variants is the turbo -a KKK K03 versus the
K04 -and engine management. Naturally, hotrodding the engine by oneself will
involve similar mods to the factory route and will certainly necessitate
injector upgrades after a point. This is all basic knowledge.

So, I must be missing some more erudite point of yours. Please elaborate on
what you're *really* saying.
--
Scott F. Williams
NJ Scirocco nut
'99 Subaru Impreza 2.5 RS
Mazda 323 GTX turbo "assaulted" vehicle
Golf GTI 16v "rollycar"
ClubVAC: "Roads found. Drivers wanted."



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