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Injector Info !

45K views 33 replies 18 participants last post by  daiphucka 
#1 ·
I have been meaning to post up some info for everyone from when I got a bunch of injectors tested a month or two back. I had wanted to get a set of injectors cleaned for my 7M-GTE - after some research and discussions - I decided to go w/ this place called WitchHunter Performance out in WA (www.witchhunter.com). I had asked if he would be able to test a bunch of misc. injectors that I had since there was much debate about certain injectors - I just wanted to have some real results. I explained the circumstances w/ the several injector swaps and un-confirmed specs. I tried to get as many of the injectors that are common to the stuff I deal w/ - I took hrs sorting and comparing the injectors from different years and seeing what was shared from year to year, motor to motor. I was surprised to find that the later 5M's had the same injectors as the 6M's as well as the later 22-RE's. I gave him the cc's that I believed all the injectors to flow and asked to give as much info back as possible (flow, psi, resistance, etc..) - Here's what I got;

'90 7M-GTE [23250 42010] - 440 cc's @ 43.5psi 2.7ohms
'88 7M-GE [23250 20040] - 308 cc's @ 43.5psi 2.5ohms
early 4A-GE [23250 34030] - 209 cc's @ 43.5psi 2.2ohms
early 5M-GE [195500 0472] - 182 cc's @ 43.5psi 2.3ohms
late 5M, 6M & 22R [23250 45011] - 186 cc's @ 43.5psi 2.2ohms
early 22-RE [195500 0474] - 172 cc's @ 43.5psi 2.2ohms

I must admit that I was wrong on my long time belief that the 7M-GE injectors were only 220 cc's - apparently they are most likely 305 or 310.
I hope everyone finds this useful. It was great dealing w/ witchhunter - they were very helpful and interested in finding out the info for me. Their prices were one of the best as well - only $12 each to Clean and Flow including a full report, replaced filters, o-rings and seals - and a flat rate of $10 to return ship - it was the most stright forward deal I had come across. The guy to ask for is Gordon and either drop my name or let him know you saw it on the celicasupra forums.
 
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#31 ·
Guess I have another vendor on my build list. I'm going to send them my 720's and some 440's or 550's for the break-in period/mild tune

According to his calculator, I need to run 87% duty cycle on the 720's for 600chp......and I thought I had too much injector
 
#32 ·
I used to use witchhunter, then they raised their rates and started hating on the candians.

I now use this guy: http://www.cleaninjectors.com/

His name's Tim, and he runs a tight ship. You get flow, opening time measurement, cleaned, reflowed, and all the little replaceable bits replaced for $11 each. THEN he gives you a subjective review of the flow pattern and set balance (priceless).

I trust him 100% with my stuff and wouldn't use anyone else, and I'm an ex-witchhunter convert.

--billyM
 
#33 ·
From another forum.. part numbers useful..


Stock 1UZFE Injector:
Code number: 23250-50020
Overall Length: 2.800"
Injector Tip Length: .260"
Injector Inlet Length: .614"
Injector Tip Diameter: .368"
Injector Inlet Diameter: .415"
Injector Opening:2
Injector Connector: Type F
Flow Rate: 251 cc/min
Impedance: high 13.8 ohm


Stock 7MGE Injector:
Code number: 23250-70080 Light Green Tip
Code Number: 23250-70040 Yellow Tip
Overall Length: 2.810"
Injector Tip Length: .260"
Injector Inlet Length: .614"
Injector Tip Diameter: .370"
Injector Inlet Diameter: .416"
Injector Opening:4
Injector Connector: Type F
Flow Rate: 315 cc/min Light Green
Impedance: High 13.8 ohm

Stock 7MGE Injector (Yellow):
Code Number: 23250-70040 Yellow Tip
Overall Length: 2.810"
Injector Tip Length: .260"
Injector Inlet Length: .614"
Injector Tip Diameter: .370"
Injector Inlet Diameter: .416"
Injector Opening:4
Injector Connector: Type F
Flow Rate: 295 cc/min Yellow Tip
Impedance: Low
 
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