87rx7TurboII

I need to order injectors for my 87 t2 motor, which do u guys suggest? i have hks intake, 3 inch downpipe and exhaust, all unnecessary pulleys removed(AC,PS,air pump). how many CCs? what kind??

Jerk_Racer

A pair of 720cc will do fine for the secondaries. They'll most likely be low impedance when they're that large. If so then you'll need resistors to get them up in impedance. All you need is a pair of 10 Ohm 10 Watt resistors from Radio Shack and some sort of piggyback fuel computer. The resistors are only a cople of bucks and the injectors shouldn't put you back any more than $120 each. Most people seem to get the Apex-i S-AFC. I got the HKS S-AFR. It's easy to use, less expensive, more flexible, less complicated with excess gadgets, and doesn't stick out like a turd in a punchbowl.



Get the injectors on there and wire up the piggyback. Then stay off the boost until you can get to a dyno to tune your car. Do this or pop your engine. Use a wideband a/f sensor to help tune the injectors right.



Do you have an upgraded fuel pump yet? If not, get a Walbro 255lph pump immediately. Those things are perfect for what you have right now.

87rx7TurboII

actually, im only ordering new ones because i have an 87 t2 motor running a 88 wiring harness, if i can just make the resistors i wont need new ones.how can i make them?

Jerk_Racer

Make them? Fudge that. Go to Radio Shack and buy some. One resistor per injector. A package of two is a bit over $2 IIRC.

rxseven

If you need 720cc injectors, my friend has a couple to sell. They have been cleaned and flow tested a week ago. He does not need them because he decided to go carb. He wants $80 for both.

M's

i may be interested in those in a few weeks, i've got no mony at all right now

rxseven

Just pm me if you are interested. He has not put it on ebay as yet but probably will soon.