View Full Version : Direct Fit Injectors
The Quickness
09-25-2005, 12:19 AM
Hey yall, this may or may not be common knowledge. Precision Turbo's line of mitsubishi injectors fit perfectly into GE fuel rails. They are a specific small tip design and fit with no modifications other than the correct plug. These use any standard obd1 style injector clip, honda ones work great and are easy to find. The o-rings and injector seats fit like they were meant for our setups. The have sizes from 525-1000cc and are low impedence, meaning you will need a resisitor box. Here is a link (http://precisionturbo.net/fuelsys-display.php?company_id=101795&category_id=3059) to the chart determining size/flow. Also, a pic of the 780cc's installed on my SC:
http://uploads.fsmoto.com/upload/images/inj.jpg
I have a very straight forward and effective twin walbro setup, which i shall post about in the future.
Josh
96NA-T
09-25-2005, 07:36 PM
fit with no modifications other than the correct plug. are low impedence, meaning you will need a resisitor box.
Josh
Not really a " direct fit" then :sad: ....... Isnt the ones Dave H sell Hi impedence(but still need clip) and also I hear that RX7 turbo injectors from like 89-90(I think) are a true direct fit.... clips, impedence.. but are 550c(not sure if this is true or not??) can someone else back that up??
Not messing with you just pointing out something :thumbup: g
Brown Duckz
09-25-2005, 07:38 PM
I think it's 2nd gen RX7's and 3rd gen Supras.
The Quickness
09-25-2005, 08:01 PM
Ehh, who wants to use injectors that small anyway :dunno:
I was more referring to no modification to the rail in order for these to fit.
Brown Duckz
09-25-2005, 08:02 PM
Ehh, who wants to use injectors that small anyway :dunno:
I was more referring to no modification to the rail in order for these to fit.Well considering those injectors will flow 500rwhp.... I'd asume a lot of people would use them. You must have alot of power to talk like that............. :eek3:
Jaxsc3
09-26-2005, 09:48 PM
ohhhhh noooooo not more crappy bosch style injectors!!! :rl:
good ole russ collins engineering is the way to go they will machine any of their injectors to 12mm to fit our stock rail at no extra cost!!!!!
Dramon
09-27-2005, 12:23 AM
2nd gen TurboII injectors are 550cc top feed high imp.
I have 4 from my old t2 sitting in my garage :) just gotta get two more.
scnat
09-27-2005, 08:29 AM
RC make 750cc hi imp. injectors that need no resistor packs
pm supra
09-27-2005, 12:21 PM
Need to determine whether you have the late or the early model lower intake manifold. The one with or with out the vent tube. The later (vent tube) is going to require unconventional sealing at the manifold.
I used denso 720CC injectors with resistor pack from a previous setup on my supra. They were a direct fit on to my 95 (non vent) lower intake manifold. I also tapped both ends of the fuel for feeds. I am making 660+ rwhp and having no fuel issues. Just as of last saturday, I ran 31.5 lbs of boost with a perfect log.
DaveH
09-27-2005, 01:34 PM
The PTE injectors are actually Delphi, and they are used by most all Supra performance companies. (SP, BL, Titan, etc). I've been running the 1000cc version for a couple years without probs, before that I ran the 680cc version for a couple years as well. I believe they are a good injector.
DaveH
ohhhhh noooooo not more crappy bosch style injectors!!! :rl:
good ole russ collins engineering is the way to go they will machine any of their injectors to 12mm to fit our stock rail at no extra cost!!!!!
The Quickness
09-28-2005, 11:46 AM
Ole Dave knows what im sayin, these injectors have proven to be quite reliable. We use alot of the 1000/1600cc versions in most of our higher end honda builds,a nd have had the utmost success with them. Either way, this thread turned out to have some good injector info in it :boink:
p5150
01-29-2006, 02:12 AM
by looking at this thread im assuming that the MKIV Turbo injectors dont fit right in -
Im getting ready to order a set of 780cc or similar size injectors for my NAT project. What was the cost on those PT injectors? RC injectors look pretty inexpensive.
1sxyrxy
01-30-2006, 01:52 PM
only 89-91 FC injectors were high imp. they were 550's dont know how much that is over stock
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