injector sizing
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Joined: Feb 2003
Posts: 169
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From: MD, USA
injector sizing
I currently have a 12-1 fmu and want to boost a decent amount but was wondering what the limits of the fmu(# of boost still safe) are and if i should use rc 310 - 440injectors in conjunction with it, Yes i know i should just get stand alone w/ big *** injectors but $$ is key now
Joined: May 2002
Posts: 3
Likes: 1
From: banned NC
Re: injector sizing (B18egHatch)
FMUs are tighter than standalone IMO, only because you can make crucial power with them, but i wouldnt run one past say 500+ HP...
anyways, you should get 440s, and you can hit 450whp at 22lbs, depending on your turbo...
a few of my friends have stock GSR bottoms, only springs/retainers on top, 12:1 FMU and 20-23 lbs and 450 whp
anyways, you should get 440s, and you can hit 450whp at 22lbs, depending on your turbo...
a few of my friends have stock GSR bottoms, only springs/retainers on top, 12:1 FMU and 20-23 lbs and 450 whp
Joined: Jul 2002
Posts: 1,620
Likes: 1
From: orange county, ca
Re: injector sizing (hybridvteceg)
from http://www.g2ic.com/forums/sho...55603
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Originally posted by B17Vortech
Injector size is highly dependant on the fuel pressure you will be running. The time to upgrade injectors is when you have trouble sending the correct volume of fuel at the fuel pressure you want/have to run. Hondata has some initial information so does RC Engineering on their website. Expected Horsepower and fuel pressure are the most desirable variables to use for determining injector size. A PSI to injector size relationship is only accurate if your run the same or similar style fuel management system.
http://www.hondata.com/techfuelpump.html
http://http://www.rceng.com/technical.htm </TD></TR></TABLE>
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote »</TD></TR><TR><TD CLASS="quote">Originally posted by B17Vortech
Injector size is highly dependant on the fuel pressure you will be running. The time to upgrade injectors is when you have trouble sending the correct volume of fuel at the fuel pressure you want/have to run. Hondata has some initial information so does RC Engineering on their website. Expected Horsepower and fuel pressure are the most desirable variables to use for determining injector size. A PSI to injector size relationship is only accurate if your run the same or similar style fuel management system.
http://www.hondata.com/techfuelpump.html
http://http://www.rceng.com/technical.htm </TD></TR></TABLE>
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