Anyone know or have access to bending plexiglass tubing? What I would like to do is to make some sort of test stand where I can look at spray patterns of injectors with the proper velocity. With the ASNU machine, I can see spray patterns but what I can't see is what the spray looks like with air moving like real life. Mainly, I don't want to give the RC injectors a bad name but their spray pattern absolutely sucks. I would love to see the spray pattern with moving air going past it. If the air atomizes the fuel flow then I would be able to prove my theory wrong, or right.
how about glass???? you might also consider making it out of plexiglass sheet which could be more easily bent and glued together in the shape you want to simulate an LT5 head port/injector housing.
what did you see in the spray pattern compared to the stock injectors??? not enough atomization, too narrow a pattern???
You could use polyurethane tubing, or chemflour tubing. It's bendable, not hard, butit would give you the view you want. Comes in the appropriate sizes.
Let's just say that from now on I will highly encourage folks who don't need the extra flow to stick with stock injectors. If you need more flow then go with the Ford 5.0 Bosch 25 lb injectors or the GS injectors from the 1996 model year. I want to peruse around some and find out more about the LS1 engine injectors. I know they have a ton of them and they are REAL nice.
You have me a little worried. In the past I have had some questionable dealings with RC engineering regarding cleaning and replacement injectors. However based on the belief they where supposed to be “the best” and internals were a superior design compared to the stock injector I bought RC injectors. They are in my ZR-1 now, but I haven’t driven enough to make any evaluation because I am still dealing with the problems RC cause me when they attempted to clean my original stock injectors.
What about the internals? Aren’t the internals of the stock injectors more prone to rust and build-up than RC injectors?
I have "heard" that too. However, a friend had his run 144K miles with no injector problems. If you keep fuel in the rails then air and moisture really can't get to them. And as far as that goes, the ones I cleaned were sitting in a bag for two years and they worked great. I'm not dogging RCs necessarily. It's just that some of the things we have been told by people is not necessarily true and I proved it. Now let's say that I have not made a statistical dent by any means in what is good versus what is bad, however the stock units can be cleaned and can work just fine. This can save a lot of people a lot of money.
As far as spray patterns and atomization the RCs are not even in the ballpark in my opinion.
RC Engineering cleaned injectors for two different cars (ZR-1 & Cosworth Vega) and in both cases I had the some of the cleaned injectors stick “on.” By chance I was working on both cars at the same time when I came across the stuck on injectors. At first I thought I had the opposite problem, the injectors were not opening, but I eventually figured it out (long story). Note: the flow reports that came back with the cleaned injectors showed them all good and balanced. Upon questioning RC and pushing the issue, they admitted that those two (three) particular types of injectors don’t take the cleaning so well and are prone to sticking after cleaning. After hearing that and asking why they didn’t tell me that in the first place, I bought new injectors for both cars.
My question is: do the stock injectors clean ok and my case was unusual? Perhaps it is the method or substance used to clean the injectors that determine the outcome.
It would be interesting to see what happens. I don't understand what would make something more prone to leaking after cleaning. Fuel injectors just have one moving part and you are using a detergent based cleaner and ultrasonic vibration. Why would the be more prone to leak after cleaning?
I don't want to start a flame war here, or defame any vendor......but, this makes one more instance where a certain "highly regarded" Corvette journalist has "highly recommended" a certain vendor, which turned out to be less reliable than the tout claimed them to be. I don't know about this injector issue, but my transmission problems cost me thousands of $$$$$, and much down time.
I an NOT saying anything bad about Hib or Russ Collins. Russ forgets more in one night of sleep than my total knowledge of injectors. I mean the guy made his own flow machine for heaven's sake. If Russ jumped on here and called me an idiot and said why, I would listen. Of course, I would also not take his word as gospel and investigate but that is how we learn.
Corvette Store
Sounds crazy but....
