Peak and hold vs. saturated injectors

Anthony Buccellato clayb at sonic.net
Fri Jan 28 16:55:10 GMT 2000


> You are building a what?.   105 injectors?.
> To get anywhere near an idle would take P+Hs
> How big of motor is this?.

460 inch Big Block Chevy, twin turbo, liquid/air intercooler. 800 HP @
6000 RPM currently, requires only 80 lb/hr. However, it is well within
reason for this setup to put out 1000 - 1100 HP at 6500 RPM, requiring 105
lbs/hr. I don't think it is such a good idea to install injectors
sufficient for current, unmodified, output levels, when I can simply turn
up the boost, and make some other adjustments, to add HP. I want a
reasonable amount of overhead to add HP over what I've already got.

> Yes,  P+H, perfered cycling 1-5 msec,  Sat 2-10msec.  You can verify in
the
> archives

Thanks. That's what I'd heard.

> Yes, there is a day and night difference in flow rates from brand to
brand,
> and style to style.  Kinsler can plot things out for you.  Sure, be nice
if
> some folks would share their injector flow charts for time on vs
pressure.

Can you recommend any mfg's that make a better product than others?

- Clay

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