puppyslaughter

hey guys,
so my engine just got streetported and i was wondering if the stock injectors (with the aid of a PFC) would flow enough fuel? or do i need bigger injectors. the car is bone stock cept for the port, at this point im just trying to get it running right i have no plans to do anymore mods to it. and if i do need bigger injectors what size/type/style do i need i know i wanna try to utilize the stock fuel rail if possible.
thanks
jeff

Mahjik

iTrader: (1)

http://rx7.com/cgi-local/3rdgencalc.cgi

adam c

iTrader: (2)

Not even a downpipe??

arghx

iTrader: (3)

just get 1300cc secondary injectors and you won't have to worry. they fit in the stock rail.

puppyslaughter

no i have a dp and wideband

puppyslaughter

ok so can the duty cycle be uped from 62% to like 75% on stock injectors

moconnor

iTrader: (14)

With an aftermarket ECU, yes. I'm running 85-90% duty cycle. The conventional wisdom is that you should not run injectors beyond 85% duty rates but people have been running 90%+ rates for many years without issue.

adam c

iTrader: (2)

Conventional wisdom also says that you will be safe as long as you do not boost over 10 psi.

Mahjik

iTrader: (1)

Check this thread:

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/what-situation-do-you-have-259912/

maxcooper

The stock injectors will have enough flow for a streetported but otherwise stock engine. You don't need to get bigger injectors.

-Max

puppyslaughter

ok guys thanks for the help that one thread really taught me alot mahjik thanks
jeff