>>Damian , can you tell me exactly the part number of the 25w resistors that you used ?

dood, did you read the post? (hehehe) I listed the sites where you can pick my exact resitors right above the pictures of the resistors. BUT I WOULD NOT BUY THOSE NOW!!!

instead buy the better aluminum ones like steve kan and others have suggested, here is a page where you can buy them:

http://www.mouser.com/?No=60&handler...SField&N=71014

they are aluminum housed, 25watt, (1% error) in a bunch of different ohms settings, you can get 4 or 6 or whatever. they are military grade and have better (stronger) leads than the sand block style ones I posted above.





>>With 2 pumps in stock tank are you planning to run ?

not 2, just one, the one that was in the car when i purchased it, it supposedly a RP Hi Flow fuel pump. rememebr, im not running much boost (12-15 psi) so this entire fuel setup is overkill, but i wanted a large safety margin, and now i have it :-) along with the ability to get freaky and turn the boost up to make 550 RWHP if I want (hahaha)

 

To everyone doing this upgrade. Make sure that you are checking and double checking the Ohm readings on your indiviual injectors. There is variance between runs, and brands. I have the 160LB injectors (same as Damian), But came up with a different OMH reading of 4.8 OHM. Damian's came in at 2.8OHM, I believe.

 

good point, I got the numbers from using a high quality tester and checking the ohms on the actual injectors. So I based the resistors off those numbers.

 

yep, we thought you made a mistake on the ohm's and i didnt get it when David was explaining it to me but we figured it out.. there are some variations.. so dont just go and buy the one everyone has..

also, i have a question for you damian because im at this step in my single install, where did you route your oil injector lines to?? some people cap it where no vaccume go into it and some run it to the intake... what did you do?? Thanks!

Great writeup!!

 

well, i cant help ya on the oil injector lines, my track car came without them :-)
i HAVE TO premix the track car as it has no oil injecotrs, lines, or metering pump.

 

dam


oh, i also have 1600's inm trying to install but i have noticed that the pfc doesnt go taht high. i know the datalogit does but do you set the secondaries to 1600 or 1680??

Thanks!!

 

for the oil injector question, I ran the braided lines to the injectors. Instead of running a vac. line to the intake, I just put a breather filter on the top where the vacuum lines would go. It's basically doing the same thing except without all the vac lines. The filter I used was actually from the 3-way solenoids in the rats nest. You should have some left over after removing all that crap.

 

1684, max cooper clarified this for me with a good explanation here:
https://www.rx7club.com/showthread.p...light=injector

 

jesus and damian

Im planning to use 861 prim and 1680cc sec with keith rails , lines etc ...
Is correct to order : 4 resistors 25w ( 1 error ) with 4.8 ohm for all injectors ?

 

>>Is correct to order : 4 resistors 25w ( 1 error ) with 4.8 ohm for all injectors ?

i would check the injectors ohms and then order according to what you see on the injectors.

 

Get a multimeter, and measure each of your injectors for their impedance. You can get a decent multimeter from Radio Shack for $20 or less. Then use the formulas that Damian posted eariler in the thread to determine what size resistor you need.

 

ok, so i measured my injectors and got 4.8.. the same as David (jesuscookies) did.. so i will need 3 ohm resistors at 25 watts?? or 10 watt's?? is the ohm's even correct?? im confused

 

i would get 3ohm 25 watts if it were me :-)

what kind of injectors are they (brand name and size) and are they the primaries or secondaries?

 

they are the same exact ones that david is using.. Bosch 1680's.. they are being used for the secondaries..

so 25 watts it is! Thanks!

 

Damian, Or anybody...Is there a reason why the change in the fuel delivery from the rear of the rails to the front, the pictures show fuel comes in from the front and your diagram shows fuel in from the rear, Can I do one or the other?

 

It doesn't matter from which direction you have the flow. I think Damian did this for easier connections as the lines are longer and don't need to be bent as much. If you go to the link I posted below, you will see some of the problems I encountered by going from the front to the rear ... Shorter lines, sharper bends and some creative plumbing.

But I prefer having the line split before the rails for incoming and then going to the FPR. That way the flow is equalized more in both rails.

Here's a pic of the setup before the lines:



More pictures here:

https://www.rx7club.com/showthread.p...3&page=2&pp=40

 

Thanks....Nice set-up you got there. I'm also going to be using rubber lines so routing should be a little easier. It's just a matter of getting the rite fittings at this point.

 

Thats funny, My setup frpm kgparts was for a series setup....... I'm I missing something here?
.................................................. .....

 

What's funny?

 

I only bought the rails and injectors. I purchased seperately the lines and fittings and made them for my setup.

It's a lot easier to do a series setup (like stock) as it involves less lines and fittings; some people don't think it matters which route you configure.

 

So how are you plugging that in to the three hardlines that come from the pump??

 

Hard line 1 - from tank to fuel rail
Hard line 2 - from FPR to tank
Hard line 3 - from charcoal canister to the UIM

The third line should only carry vapor so it doesn't need to be a braided line.

 

atihun's post sais it all, it doesnt matter what side you feed from, its just a matter of how you want to route the lines. :-)

 

Damian,

Did you ever install the FJO injector driver? I'm trying to figure out the best location to mount mine; so far it looks like I'll make a bracket and mount it on the backside of the UIM.

Attila

 

I plan on installing it soon, I was going to install it inside the cabin of the car, tapping the wires close to the harness ecu connections that go to the injectors. I will probably put it back behind the glove box somwhere or in the ecu area. I know that its built tough and can take heat, vibration, and dirt or whatever, but I think by tapping it in at the ecu connection point it will save all the wiring mess that would be under the uim if I tap it right at the injecors. The wires they provide are long though, so there are a couple of options for mounting.