here i like to review some injectors & my experience tuning with this injector...
engine spec:
4g64
260 tomei cam
fairlady piston
eagle rod
block not skim (piston 2~3mm below deck)
(running low compression engine need good injector to run it smoothly)
Sard 700cc .. single nozzle ,pintle style, base pressure 3bar
- random misfire at idle
- sometime misfire & sputter low rpm ( cruising)
- need to tune abit rich at idle & cruising .. 12.5~12:1 ... if put 14.5:1 , engine will jerk, misfire
- overall feel not smooth
Power Enterprise 1000cc .. twin nozzle, pintle style, base pressure 3bar
- all the same prob. as the sard 700cc ... but it more smooth, maybe twin tip help abit.. this will inject direct to both intake valve..
- idle & cruising afr around 13~12.5:1 ...better compare to sard 700cc
delphi 1000cc ... ball& seat design.. base pressure 3.5bar
-the worse injector i ever tune..
- afr fluctuating
- missfire ,sputter , jerk
- hard to tune
- need to set 3.5bar, if run @ 3bar .. it will give more misfire.. harder to tune..
New Bosch 1200cc ... ball & seat, hi impedance , base pressure 3bar
- this injector is superb.
- feel like tuning 350cc injector huhuhu.. easy to tune, afr not fluctuating
- can idle & cruise @ 16-14.5:1 afr. feel great coz still smooth @ 16:1afr..huhu coz my c.r too low
- no more missfire, sputter
- smooth engine running
just sharing info... thanks..
engine spec:
4g64
260 tomei cam
fairlady piston
eagle rod
block not skim (piston 2~3mm below deck)
(running low compression engine need good injector to run it smoothly)
Sard 700cc .. single nozzle ,pintle style, base pressure 3bar
- random misfire at idle
- sometime misfire & sputter low rpm ( cruising)
- need to tune abit rich at idle & cruising .. 12.5~12:1 ... if put 14.5:1 , engine will jerk, misfire
- overall feel not smooth
Power Enterprise 1000cc .. twin nozzle, pintle style, base pressure 3bar
- all the same prob. as the sard 700cc ... but it more smooth, maybe twin tip help abit.. this will inject direct to both intake valve..
- idle & cruising afr around 13~12.5:1 ...better compare to sard 700cc
delphi 1000cc ... ball& seat design.. base pressure 3.5bar
-the worse injector i ever tune..
- afr fluctuating
- missfire ,sputter , jerk
- hard to tune
- need to set 3.5bar, if run @ 3bar .. it will give more misfire.. harder to tune..
New Bosch 1200cc ... ball & seat, hi impedance , base pressure 3bar
- this injector is superb.
- feel like tuning 350cc injector huhuhu.. easy to tune, afr not fluctuating
- can idle & cruise @ 16-14.5:1 afr. feel great coz still smooth @ 16:1afr..huhu coz my c.r too low
- no more missfire, sputter
- smooth engine running
just sharing info... thanks..
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