i am able to get a set of RX7 460cc injectors. will they fit on the Si? and do i need to use the resistor box? i've searched all day and haven';t found **** on those

they are coming off an 1991 RX7 and are high imp

 

... if they are bosch style, they should fit... it just might take some modifications... as for the resistor box... if you are sure that they are high impedance, then you should not need a resistor box...

 

they are 460cc high imp injectors from 91 rx7


here is a pic, what does it cost to get them cleaned

 

Yes they should fit....I was originally planning to use a set of 850's from the turbo RX7 on my motor.

 

how much did you pay for them

 

60 bucks

 

no ****!!! sounds like an alternative to teh dsm injectors + resistorbox

 

... yeah, just make sure you know the resistance of the injectors... i have some 550cc rx7 injectors but they are peak-hold... not saturated... so i still need the resistor box...

 

how do i check the resistance? and what is it supposed to be?

 

... a multimeter should do the trick... peak-hold are low resistance, 2.5-3 ohms... saturated are high resistance, 15-16 ohms...

 

I thought the 550cc FD3 rx7 injectors were saturated?

 

FC3S Turbo II injectors are saturated 550cc units.

https://honda-tech.com/zerothread?id=154596

 

... i dont know what the fc3s is... sorry not an rx7 guy... but from what i have read... i dont know if it is quit that simple... see here : http://www.rx7club.com/forum/showthr...threadid=72980

... also, with my injectors... i had the resistance checked when i had them cleaned and flow tested and again with a multimeter... so i know for sure that i have peak-hold injectors...

(and for those who dont want to follow the link : )
1984-1985 GSL-SE (one pair) 680cc/min top-feed low-impedence
1986-1987.5 non-turbo (two pairs) 460cc/min top-feed low-impedence rectangle plug
1986-1987.5 turbo (two pairs) 550cc/min top-feed low-impedence rectangle plug
1987.5-1988 non-turbo (two pairs) 460cc/min top-feed high-impedence rectangle plug
1987.5-1988 turbo (two pairs) 550cc/min top-feed high-impedence rectangle plug
1989-1991 non-turbo (two pairs) 460cc/min top-feed high-impedence oval plug
1989-1991 turbo (two pairs) 550cc/min top-feed high-impedence oval plug

 

i just got them and tested them

they come up with 5 ohms

 

i just check my stock ones and they have 5 ohms too, so i guess i can just drop them in without the resistors

please let me know, before i blow something up

 

... you should be fine...