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Gtr Injectors Into Rb20det

Roy

By Roy,
in Tutorials / DIY / FAQ

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Rolls Grand Master

Rolls

Posted
Posted

hey mate ive just acquired some 33gtr injectors to go into my rb20 what resisters did you use? as i want to make one as well.

Did you consider I dont know, reading the thread? rolleyes.gif

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Rolls
Rolls

Did you consider I dont know, reading the thread?

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Rolls Grand Master

Rolls

Posted
Posted (edited)

rb20 injectors are 14ohms, gtr injectors are 4 ohms hence 10 ohm is needed

I=V/R

12V / 14 ohm approx 10 ohm resistor + injector (4 ohms)

= 0.857A

P=VI

12V X 0.857A

=10.3 Watts

same as everyone else, 10W and 10 Ohm

Edited by Rolls
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stÖrmy Proficient

stÖrmy

Posted
Posted

rb20 injectors are 14ohms, gtr injectors are 4 ohms hence 10 ohm is needed

I=V/R

12V / 14 ohm approx 10 ohm resistor + injector (4 ohms)

= 0.857A

P=VI

12V X 0.857A

=10.3 Watts

same as everyone else, 10W and 10 Ohm

Thanks for that mate.

How did you guys go about getting the car to run with these injectors? On the first page it sais the car may not run at all, I have a re tune booked but wanted to install these before the tune but if the car wont run with them then its gonna be kind of hard to get the car to the tuner?

edit : also i have a safc 1 installed already so is there something i can do here to make it run well enough to get it to the tuner? im trying to save a bit of cash by doing some things my self but the next tune is just for the bigger fuel pump, i wanted to get the gtr injectors in and maybe even my z32 AFM as i wont have the money to get these done by the tuner on the day.

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Rolls Grand Master

Rolls

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Posted (edited)

You will almost certainly have to trailer the car there, if it runs it will be horribly rich and no doubt foul the plugs and stall multiple times, I wouldn't bother trying to drive it. If you change the AFM as well then forget about it, definitely will not run.

Edited by Rolls
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stÖrmy Proficient

stÖrmy

Posted
Posted

A tow is like $60 max

i meant the hassle of organizing all the crap and still getting to work on time, alot easier to just drive to tuner and walk to work or have someone follow me to drop me off at work etc.

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Rolls Grand Master

Rolls

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Posted (edited)

This is prob a stupid question, but why can't you just replace the standard injector resistor on the rb20 with the rb26 one?

You can, but most people sell them for $100, so if you can do it yourself for $10 why not?

Also the standard one doesn't use a resistor as they are normal impedance.

Edited by Rolls
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bubba Grand Master

bubba

Posted
Posted

hey mate ive just acquired some 33gtr injectors to go into my rb20 what resisters did you use? as i want to make one as well.

10W 10ohm from Jaycar, cost like $11 for 6 of them

Have since found a better range of boxes to house them at Altronics

As for getting the car to run I have NIStune and a Tuners license so I can get it running well enough to get to the tuners, will be a couple more weeks till I kick it in the guts though (pipes to be welded).

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