So, I want to order a set of RC Engineering fuel injectors, but I'm having trouble understanding their listings. How do I identify what style injector I need, as in Physical Size? I know what CC i want, but i know different automakers use different physical sizes, and i want to make sure i order the correct kind. thanks.
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
I ordered a set of rc injectors and they were so expensive ! almost 500 dollars! Just get some 60 pounds off of over the top performance. Great cobalt site.
well, thats not really the point. for instance, I heard that we used "Bosch 2" style Injectors. Come to find out, that is refering to the connector that is on the injector, and not much else. I know this becuase DSM cars also use a Bosch 2 Injector, but they are physically shorter than ours, and will not allow a proper fit on the rail. They do have the same bore OD for both ends, they are just a little shorter.
So, I do not feel safe ordering a "bosch 2" injector, becuase in my mind, that only refers to connector style, and will not mean anything about physical size.
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
This is why most get injectors from other cars (like Ford Green Tops, Cobalt SS/Sc injectors etc... One we know they will work, 2 they are cheaper.
FU Tuning
Nukkinfuttz wrote:okay then, what car can i find factory 750cc injectors from that will fit into a quad 4 or twin cam
I don't think you will, but I do think DSM injectors work in our cars. Ask a few of the high HP cars. I know a few of them are running 750 to 1000cc injectors.
FU Tuning
anything made by seimens is a pretty good fit. I posted the physical lengths of injectors in this forum not long ago.
Well, I guess i have decided to go a different route. Im going to make a port fueler setup, and add another row of 36lbs/hr injectors, that will give me a total of 8 36lbs/hr, and total fueling capacity of 72lbs/hr, which is exactly what i want. It will look pretty trick, and be alot easier to come by these more common injectors than the original plan. I can get another set of 36lbs/hr out of a Supercharge Pontiac Bonneville for pretty cheap, thats where i got this first set from.
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
if one had a set of rc injectors in their LD9 currently, could one simply read the numbers or lettering etched into the side for the correct sizing?
i know mine have something like PLU and a number then it says "270" on it, which i always assumed meant 270cc.
I did not buy them though, they came in my 97z when i bought it almost 6 years ago.
In the end, we're all just chalk lines on the concrete.. drawn only to be washed away.
Nukkinfuttz wrote:Well, I guess i have decided to go a different route. Im going to make a port fueler setup, and add another row of 36lbs/hr injectors, that will give me a total of 8 36lbs/hr, and total fueling capacity of 72lbs/hr, which is exactly what i want. It will look pretty trick, and be alot easier to come by these more common injectors than the original plan. I can get another set of 36lbs/hr out of a Supercharge Pontiac Bonneville for pretty cheap, thats where i got this first set from.
What year Bonnie?
Chris
'02 Z-24 Supercharged
13.7 @102.45 MPH Third Place, 2007 GMSC Bash SOLD AS OF 01MAR08
Not sure, i didnt even look. I found one with the long snout M90, which would make it a 5th gen blower, and i took those injectors. Later research on the net told me they were 36lbs. Thats all I know. lol and they are high impedance BTW, so they probably would not be ideal for the stock ECU, but they wont hurt anything, it probably wouldnt have as fine as control over them.
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
If you can now...throw them at a 27 degree angle toward the valves from "straight-on" like you got them there. You will wet the runners too much and not get good consistent fueling out of the direction you got them now. You will see your O2 throwing corrections to add and subtract fuel constantly when you direct injectors right at a surface due to wetting.
You also need to throw a lower strap from the rail to the bottom of the manifold or weld the trusses you got on the top cause right now you have a pivot and the fule pressure will push the rail off the injectors..........I know I know, you knew that already and your just showing what you got so far, but just in case it MAY get overlooked so I'm letting you know.
But it does look sweet so far. I will say that for a twin rail setup you might look into setting up an AEM AFPR remotely or the like that has dual ports and just run one AFPR to both rails with SS lines...that would be sweet.
<table>hello</table>
thanks for the insite josh. I dont like that 90* angle either, but the metal thickness would not allow it to go anymore. I am concidering making some injector cups, and welding them onto the outside of the runners so i can achieve a better angle. I tend to agree with you on what your saying about overwetting the walls.
It was also recommended that i take two fuel rails, cut them in half, and add a supply and feed to each rail. each rail would then only service two injectors. I am very concerned about internal rail turbulance, becuase im running a little leaner on #1 cylendar than the rest. I was looking for a vemon rail, but they seem to no longer offer the quad 4 rail. damn. I still might go ahead an order up a blank rail extrusion that is a larger ID, and drill it myself. Thats probably the best solution to the current problem.
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
Will the 60# Colbalt injectors bolt up to the LD9 fuel rail and clips?
Also what do 60# equal in cc's, are they bigger than or equal to 1000cc?
The injectors from RCE have 2 spots that they can be clipped at. The lower spot makes them too short for the Ecotec but the upper spot makes them just right
And yes you can just read the numbers on RCE injectors. They will actually have the flow etched into the body.
I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
