fmu disk for 310cc rc injectors

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Old Jul 1, 2002 | 03:06 PM
  #1  
bottlefedb18c1's Avatar
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From: NY, US
Default fmu disk for 310cc rc injectors

what should be the right fmu disk for 310cc injectors in a b18c1 i like to run 9 to 10 psi of boost

and what kind of plug is recemended to be used to NGK plug i used to use cant be found by me anymore i gess i bought them all
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Old Jul 1, 2002 | 03:55 PM
  #2  
GSRwBOOST's Avatar
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Default Re: fmu disk for 310cc rc injectors (turbogsrb18c1)

I use an 8-1 w/ 370's with base pressure at 38-42psi

38-44 + 80 (8X10) = 118-124psi (a little high)

for 310's your looking at 10-1 disk but

thats 10psi X 10psi fuel = 100

100 + 38-44 puts you almost at 138-144psi of fuel pressure....

too much pressure...

** GUYS **
Don't injectors drop in flow rate at such high pressures?
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Old Jul 1, 2002 | 03:58 PM
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greengangsta's Avatar
 
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Default Re: fmu disk for 310cc rc injectors (GSRwBOOST)

you should get an 8:1 fmu. i have one for sale for $80 shipped. email greengangsta@hotmail.com
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Old Jul 1, 2002 | 04:58 PM
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dustin's Avatar
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Default Re: fmu disk for 310cc rc injectors (GSRwBOOST)

Don't injectors drop in flow rate at such high pressures?
fuel pressure and fuel delivery aren't linear. 4 times the fuel pressure = twice the fuel delivery.
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Old Jul 1, 2002 | 06:31 PM
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modvp's Avatar
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Default Re: fmu disk for 310cc rc injectors (turbogsrb18c1)

8:1 FMU disk with 310cc injectors. Injectors should flow approx 510 cc at 10 psi boost and approx 490 cc at 9 psi. Those flow rates are approx. figures. They are based on 115 psi fuel pressure at 10 psi and 107 psi at 9 psi.
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Old Jul 1, 2002 | 11:50 PM
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SIK IN DA HED's Avatar
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Default Re: fmu disk for 310cc rc injectors (modvp)

ive heard 8:1 works best.. but i guess it all depends on your setup. that fuel pressure aint too bad... considering that some people boost 9-10 lbs on stock shocks and 12:1.
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