How do you tell if your car is an early 87 model or not? The earlier models had the resistor pack for the injectors with low impedence ones right? I want to upgrade mine but I don't know what to get. Somebody please help me out!

 

86-88 FC's had low resistance injectors. what mods do u have or planning on getting, ur hp goal, etc.... then you can figure what injectors to get

 

The resistor box is under the stock airbox, if you have it. It's a nice, shiney aluminum box that's hard to miss.

 

I am going with a large streetported s4 motor, greddy T67 turbo kit, FMIC, 3in DP/MP, Walbro, some kind of FPR,and an SAFC. Thanks for the pic Kai, I'll check it out tonight. That means I can go with the low imp. injectors if I got it.

 

No. 86 to 87 1/2 had low impedence injectors. The 87 1/2 and newer are all high impedence.

All you need to do is remove the afm/filter assy and see if you have a solenoid resistor package bolted to the fender below those two items. It's silver in color and one and a half inches wide and about four inches long. It's shown in the fsm. The fuel section.

The vin number is on this site somewhere.

 

Try this link https://www.rx7club.com/forum/showth...chassis+number

 

Or try this one and ignore all but HAILERS if you want chassis numbers https://www.rx7club.com/forum/showth...chassis+number

 

both my 87 and 88 tii's, have low impedance.

 

That's great that I went through the effort of providing the guy with a picture and don't even get credit for it. The 88 won't have low imp. injectors stock.

 

i have an injector resistor box, but it's mounted behind the headlight area...

my car is built in 87 as well.. hmmm weird :S

my fuse box is also mounted horizantal rather then vertically as well

peculiar

 

No. That item behind the headlight area is the Fuel Pump and Resistor. On a series four it is only found on a turbo model. The n/a series four did not have it.

The Solenoid Resistor is found below the afm/filter, mounted on the fender.

The *thread* I gave a link to, had/has the vin number where the break in high/low resistance injectors occured. That is why I suggested looking only at HAILERS in that thread because THERE lies the link to the VIN NUMBER.

I've posted pictures of the solenoid resistor on this site in the past.

NO 88 was ever made with low impedence injectors ever. If you have them the car was modified.

HERE IS THE VIN: If you need the chassis number of the mid 87 model where the resistance of the injectors went from low to high, its chassis number 550169.

Those are the words in the url I attached in an above post.

Go buy a subscription to ALLDATA.COM and you can look at the service bulletins that deal with the injector change from high to low resistance and the chassis number etc.

 

Yes. I missed that picture altogether. When I said ignore all but the HAILERS it was the people in the url I attached, not this thread. I did that because in that url I had attached the VIN NUMBER. Here is KAI attachment https://www.rx7club.com/forum/attach...hmentid=100976 of the solenoid resitor pack that should be there on all cars that have low impedence injectors.

 

I gave you credit right away man. Thanks for all of the input. I've got the resistor pack so I am going to buy myself a set of lom imp. injectors. Thanks