7MGE Vs. 1UZFE Injectors

The 1UZFE EGR Delete Kit is available for sale here.
Exactly, you only need bigger injectors and ECU change if using a dry nitrous shot, which you shouldn't do anyway. A wet system, or better yet a multi-port wet system, will have its own fuel supply, and you needn't change anything else except for the ignition retard.
 
I though wet shot need to be monitered by computers and line graphs, with electronic boost levels gauges. Is wet just as easy as dry, if so i'd rather do wet. But i've seen some ridid things happen to heads, hoods, and blocks at the track attempting to go that extra step. Some where on the line of detonation, dont know what it means, but its usually used in the same sentence with "bomb".
 
Murphy. About the Nitrous. Would i need the extra laptops with the engine gauges and ****? a wet system sounds alot easier, and i know the results are better. Can the wet system be just as plug and play as the dry system, and leave me out of pocket only $650+/-. If so what is the recommended/"mechanically safe" shot amount with the dry, and if u know whats "mechanically safe" with a wet system? And since i've already upgraded to the 315cc (yellow tips), and shooting a dry 75 shoot (Zex), would there be a significant difference to do the 75 shot wet? Cause i wanna break a 100 shot, but rumor is i'll break something in my drivetrain attemping to spin the 255/30/22's that quickly.
 
hey guys, I know this is kind of an old thread, but this is the closest I could find via search to what I was looking for.
I've got a 1uz manifold I bought off eBay last year, for the TB for my Supra, and I've been trying to find out which injectors it has since then. They don't match any of the ones listed, for the 1uz or otherwise, that I can find. I'm putting it back up for sale on eBay, so I'd like to find out this info if any of you guys may be able to help.

This thing has gray-top injectors (Denso), appear to be stock, with p/n 23250-50040 on them. Any ideas about the specs for these? Thanks!
 
you're right, I took a look at the high-res pics I made when I got the manifold in, with close-ups of the numbers. It's the 23250-50010 (I don't see that small print to well, apparently :redface: ), these must just be faded badly, because they're definately gray, just a touch lighter shade than the injector clips attached to them.
Thanks for the help! :biggthump
 
I am running a 100hp dry nos system on my 1992 SC400 for over a year no problems what so ever and I use it all the time. I did not need larger injectors and I even got the shot up to 150hp no problems. However, I did need to install a high volume electric fuel pump (walbro), cooler running autolite nos spark plugs, and a piggy back ecu to help with the fuel/air mix ratio. A 100hp nos shot is a safe setup for these stock IUZ'z...That is it. Not a big deal....
 
Cassmori,

The Canadian Supra Site has a good article on using the 1UZ MAF with (I think) Lucas 550cc injectors.

Worth a look.
 
well, since the installation, i've of course wanted more. seeing that my pockets werent as deep as i need them to be i gotta shop around for all upgrades that have a cost benefit ratio. What if come out of my chambers with is that basically, nitrous solves all problems.

Even though its aimed more toward acceleration, its boost and torque, its horsepower at the wheel in any term. And its simple. As i analyzed this, if you do the internals (rods, pistons, rings, and seal etc.), plus some tranny mods (only one i know of is the high stall converter) u can achieve alot of hp. You can get a 4000 dollar turbo system to get i guess around 150-200 extra hp's. Or simply get a wet kit for 850 bucks max, change some jets, and easily get the 300.

Personally im saving for the Dircect Port NOSzle System (1400, on ebay of course). Look up "NOSzle" on Yahoo all u'll see them on a lot of mustangs. After doin an entire bottom end rebuild with internals rated for 350+, i'ma spray a dual stage with the 100 shot dry i already have installed, followed with 250 shot through the NOSzle system. Ima see if i cant blow my heads through my fockin hood (what is neccesary to keep my heads on?) Doin some tru duals to obtain the extra 40hp's, but what ever they are the gotta be quieter than stock in idle. Heard the DynaMax fit that description.

Worst case scenario i need a new hood and engine, shouldnt run a grand. You all gotta wish me luck. And unless it catches fire, i'll still have my Nitrous systems. Only extra exspense not listed here is retarding the timing, still havent found an easy way of doin it. A piggyback, or stand alone cant be the only means of doin so. Holla.
 
Believe it or not nos is not that flamable out of the bottle, it is a vapor if that sounds crazy but it is true, atleast that is what the nos pro's tell me, nos is safer then people think..... And yes with a 250 additional nos shot you will need larger injectors, and new forged pistons and rods after you blow the stock ones up, might even need a new block after that. Oh, and the tranny second gear should blowout on you depending which blows first the engine or tranny. My advise is don't push to far over 400 horsepower.... Remember stock 400's run at maybe 220-230hp and I would not run more then a 200 nos shot on a stock motor that is it....Oh and you better have coilovers and a good LSD, because nos is instant rear wheel power no controlled ecelleration, so kiss your rear or rear tires goodbye because they will be spinning out every time you hit the button..... See ya....
 
I hope this R&D help my members. This is fresh out of the oven. The 7MGE injectors are from Toyota Supra from 1988-1992 AKA MKIII N/A motor. There were two sizes produced. Yellow Tip is 295 cc/min and Green Tip is 315 cc/min. I used a highly precise caliper (professional) to do all the measurements. Here are the of the injectors:

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
Note: Need resistor in order to work on 1UZFE.


Basically the two injectors are identical. I got the 12 used injectors for a great price. They will be send to a injector specialist for cleaning and balancing. They are direct bolt on to the 1UZFE.

Stock support 8 psi
Yellow Tip support about 10-11 psi (needs Resistor)
Green Tip support about 12-13 psi.

Those injectors are like gold to me. The are in high demand and especially the Green Tips... very hard to find. Anyone have a 3SGTE injector laying around? I would like to compare them to 1UZFE injectors. Check out the pictures.

I know im dragging up a super old thread here but ive got some gen 1 3sgte injectors i was thinking of putting in my 1uz.. Is there a site where you got all this info from or how can i find out if these injectors are suitable?
 
Lex,

the light green tip is a 315cc high impediance injector (7MGE engine 89-92

the yellow tip is a 290cc low impediance injector (7MGE engine 86 1/2-88)

the black tip is a 440cc low impediance injector (7MGTE engine)

you cannot use a low impediance injector to a high impedianc esystem and vise versa...

to check the impediance of the injector is by using a multi meter and put the range to omhs.... this is the measurement of resistenace.... then by using the + and - test leads ... test it across the two male pins in the individual injector (picture 3 from last post of lextreme) then read the measurement

usually a low impediance system will have a range of 2-4 omhs
while a high impediance system hill range from 12-14 ohms


i thought you could change to aftermarket ecu and the impediance issue would not matter??

as looking into getting 7mgte injectors for my 1uz to work with my adaptronic

sorry for bringin up old thread.
 
Ohh .. its old thread . but I have question regarding that.

What is the limit for the 7MGE injectors .. i.e. how much WHP it can take Or boost ??

I read some where before that you can divide the cc/min by 5 to get the max FHP
is that right ??
 
Can we add this two injectors to list of injectors that can be interchangeable with 1UZ injectors:
First:
Stealth TT / 30000GT VR4 stock 360 cc/min fuel injectors:
Dimensions
Total length 2.856 in 72.54 mm
Top feed diameter 0.412 in 10.47 mm
Feed opening 0.174 in 4.2 mm
O-ring diameter 0.450 in 11.43 mm
Bottom diameter 0.360 in 9.14 mm
Second:
MKIII supra injectors stock 660 cc/min fuel injectors:
Same dimension as above
 
Good site in the US to buy new injectors?

Not sure what they are like, but these guys list new performance injectors that look like they will fit a 1uz for $59 ea US (440 - 630 cc/min), better than buying seconhand and getting them cleaned. Lex - they may be worth checking out and letting the forum know. They have pdf's with info on the site.

http://www.injector.com/fuelinjectors.php

Ed
 


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