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Toymods » Tech & Conversions » What uses large Top feed injectors?

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oldcorollas
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Kita-Ku, Sapporo, Japan
Registered:
January 2003
 
Re: Brake Specific Fuel Consumption/Injector Sizing/Top feed injectors Thu, 03 March 2005 03:58 Go to previous messageGo to previous message
i would initially just go for it... (unless you are planning higher rpm than normal).
once you get up past about 6000rpm, you also need to choose injector size based on the available time to inject.
if you do plan to go to higher rpm than stock, i would choose injectors based on that.

for example, for my 1.3L, a 145cc/min is ok for 6000rpm, but for 8000 i need 180cc/min

from Megatune (MS tuning prog). 350cc/min with 12:1 AFR and 100% VE gives 11.6ms pulse.
thats close to 8300rpm.
for 250cc/min, it's 16.3ms, which is about 5900rpm...

so even for the same efficiency, the rpm (above 6000) will dramatically affect the injector sizing...

if it was me, and i was gonna take to motor to 8000rpm, i would go straight for 350cc/min.
(unless my calcs are wrong Sad )
Cya, Stewart


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SubjectPosterDate
Read Message   What uses large Top feed injectors? CrUZsidaThu, 03 March 2005 01:49
Read Message   Re: Brake Specific Fuel Consumption/Injector Sizing/Top feed injectors  oldcorollasThu, 03 March 2005 03:58
Read Message   Re: Brake Specific Fuel Consumption/Injector Sizing/Top feed injectors oldcorollasThu, 03 March 2005 04:02
Read Message   Re: Brake Specific Fuel Consumption/Injector Sizing/Top feed injectors CrUZsidaThu, 03 March 2005 04:06
Read Message   Re: Brake Specific Fuel Consumption/Injector Sizing/Top feed injectors oldcorollasThu, 03 March 2005 04:26
Read Message   Re: Brake Specific Fuel Consumption/Injector Sizing/Top feed injectors CrUZsidaThu, 03 March 2005 04:29
Read Message   Re: Brake Specific Fuel Consumption/Injector Sizing/Top feed injectors CrUZsidaThu, 03 March 2005 04:29
Read Message   Re: What uses large Top feed injectors? SkipThu, 03 March 2005 04:38
Read Message   Re: What uses large Top feed injectors? CrUZsidaThu, 03 March 2005 04:42
Read Message   Re: What uses large Top feed injectors? 10sec_rx7Thu, 03 March 2005 05:11
Read Message   Re: What uses large Top feed injectors? CrUZsidaThu, 03 March 2005 05:13
Read Message   Re: What uses large Top feed injectors? 10sec_rx7Thu, 03 March 2005 05:16
Read Message   Re: What uses large Top feed injectors? CrUZsidaThu, 03 March 2005 05:18
Read Message   Re: What uses large Top feed injectors? 10sec_rx7Thu, 03 March 2005 05:20
Read Message   Re: What uses large Top feed injectors? CrUZsidaThu, 03 March 2005 05:22
Read Message   Re: What uses large Top feed injectors? 10sec_rx7Thu, 03 March 2005 05:24
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