88turbotime

They say they are direct drop in for 88 rx-7, so would you not have to wire up some resistors if you use these?

I have heard some people say stay away from Venom injectors and some people say they are fine, so what do you guys think?

http://cgi.ebay.com/ebaymotors/2-Maz...QQcmdZViewItem

RotaryEvolution

iTrader: (30)

should be fine so long as you run fuel through them as soon as possible, rebuilt injectors tend to stick if they are shelved for any period of time. those are just rebuilt OEM denso injectors FYI.

88turbotime

oh.

so if i go with those, would i not have to wire in some resistors? That would be a plus.

RotaryEvolution

iTrader: (30)

i would check the resistance just to be sure, you just never know what someone sais vs what you get.

88turbotime

What do people usually seem to go with? GReddy?

Sideways7

iTrader: (7)

Could you elaborate? Does this just go for truly rebuilt injectors, or even ones that are just cleaned, etc, or is there even a difference?

RotaryEvolution

iTrader: (30)

the greddy ones are just resold denso units, you can also run the GSL-SE 680's which flow damn close to 720cc's when you push 40psi of fuel pressure through them.

RotaryEvolution

iTrader: (30)

it really depends on the solution the shop uses, most reman injector shops use the same solutions to store the injectors, the solution dries out over time and sticks the injector and sometimes you can free them up by tapping on the injector while it is running its duty cycle but it is better to just install and use them asap if in doubt to prevent the solution from drying/sticking the injectors. doesn't matter if they have been cleaned or rebuilt, they usually get the same treatment after the process is done.

88turbotime

hmm.. Ok karack, here is my setup.

I have street port, removed emissions, racing beat turbo back exhaust, k&n cone filter, and walbro 255. In the very near future i plan to upgrade my seccondaries, i have a S-AFC II that i havent put in yet, and i will get a wideband. Also im running about 8, definitely no more than 10 psi on stock turbo with ported wastegate.

Do you think the 680s would be enough for this application? And also if i installed those would I still need to wire up the resistors? (can you tell i really dont want to wire resistors? )

Sideways7

iTrader: (7)

Ok, because one of my rotors isn't getting fuel. I had them serviced by cruzin performance over a year ago. I installed them shortly after they were cleaned, but the engine needed to be rebuild so they sat for over a year. Would a few minutes of cranking a 3 seconds of running be enough, or could one of the injectors be sticking?
I'm going to pull the intake off and test the injectors in a few weeks once school is finished, but it would be nice to know if this is a possibility.
Thanks, and sorry for the thread jack.

RotaryEvolution

iTrader: (30)

your fuel setup should be fine, just don't boost past 10 until you are ready to begin tuning.

i didn't see any part numbers on that link so i can't be sure if you will require resistors or not. they say drop in, so i guess that is a yes but who really knows until you recieve them.

Sideways7

iTrader: (7)

I think you would need the resistors for the GSL-SE 680's. They run on the same impedance as 86-87 (low?) and different from 87.5-88's.

RotaryEvolution

iTrader: (30)

yeah you would need resistors for the GSL-SE injectors but not the 88 series high imped. injectors on the auction page. Greddy 720's are also all low impedence and require resistors.

88turbotime

So you are saying that the 680s would be enough? About how much boost do you think those would be good for? I dont plan to go over about 9 or 10.

RotaryEvolution

iTrader: (30)

from personal experience even with 550's and a 255 pump you should be able to push it to about 12PSI before you start hitting the max duty cycle of the injectors, with 680 secondaires you should have no problem maxing out the turbos efficiency at 13PSI.

88turbotime

ok. Thanks karack, you are a big help.

RotaryEvolution

iTrader: (30)

np

airworks-fc3s

i can't recommend them! had a pair of 1000cc secondarie wich seemed to flood once in a while!