Or WitchHunter http://www.witchhunter.com= /index.php4

They don’t sell injectors, just clean them, but they have = a bunch of pictures on their site that may help you find the correct = one.

What is it about the injectors that doesn’t fit? Top = or bottom wrong size? Too long? Too fat? When you say you = bought the stock Mazda injectors, what generation do you mean? = Renesis??

Bill B

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of wrjjrs@aol.com
Sent: Wednesday, June 10, = 2009 4:23 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Injectors quandary.

Chris,
Try calling RC Engineering. They do all kinds of injector cleaning = sizing. Kind of like Gami but for cars and motorcycles. They can prrobably advise you = on the injectors to use for the size holes you have. Phone is (310) 320 2277, = and they are located in Torrance CA.
Bill Jepson

-----Original Message-----
From: Christopher Barber <CBarber@TexasAttorney.net>
To: Rotary motors in = aircraft <flyrotary@lancaironline.net>
Sent: Wed, 10 Jun 2009 11:37 am
Subject: [FlyRotary] Injectors quandary.

The list is WAY too quiet. So, I thought I would pose this = concern/question.

I am wanting to get new/rebuilt injectors. I tried to get some a while = back and ordered 4 Mazda injectors. It was at this time I discovered that the = stock Mazda injectors do NOT fit the Mistral intake. My former build helper originally found the injectors I have been using. The are seriously = mismatched at about 550 cfm and 1600 cfm. I know the EC2 can compensate (perhaps = with some difficulty due to the extreme difference), but I am wanting to replace = them all with about 550ish injectors. Perhaps it will help some of my leaning = issues, perhaps not..

I am having a couple of issues. First, getting the right PHYSICAL size. = While the ones I am using in the Mistral Intake look a great deal like the = Mazda injectors, they are different in physical dimensions. The ones I have = come back with a Chrysler (Deko) and Ford Part numbers, but seem to be very old = part numbers have been difficult to find online (my local auto shop and speed = shop has been no help...I seem to know more than they do about the topic even = though they did try to help). Are there "standard" known physical = types with some kind of verbiage that will allow me to get the proper fit? Or do I = use my calipers, go for the couple of sets I have found with dimensional = drawings, order them and hope for the proper fit? I just do not know the "standards" used and I yet been unable to find the answer online....gee, I may have to resort to live persons in an auto = electrical shop <g>. Some of the injectors seems short and stubby and some long = and skinny...some, indistinguishable to the untrained eye, like the = different ones I have now.

I know, due to my ignorance, I may be making this harder than it is, but = hey, it is part of the learning.

SECOND. Since I am ordering new injectors anyway, I am curious about the impedance. The current ones are low impedance. Thus, I am using the = resistors in series with each injector. I know the EC2 does not seem to mind this = at all, however, since I am replacing them, is it wise to remove this minor = failure point (the connections to the resistors etc) and buy high impedance = injectors and remove the resistors? Does one have a significant advantage over the = other? Seems if you can reduce the parts count (heh, like in the rotary), it = may be better.

Thanks guys. Hope this helps pick up list activity a bit too.

All the best,

Chris
Houston

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