Injector flow?

All technical questions and answers regarding starions, being modifications to maintenance.
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Cookiemonster
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Post by Cookiemonster »

Yes there is.
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StarionChef
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Post by StarionChef »

I think they are also a different style of injector, but I dont think Ive seen a JA injector in the flesh though.
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mrb1
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Post by mrb1 »

Ok. Not sure if my question has been answered but there sure are a lot of posts! It would seem around 800cc/min for the black injectors. Next question my JB injector manifold has black injectors were there any other injectors in JB's? What are the gray ones from?
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StarionChef
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Post by StarionChef »

Import motors apparently
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StarionChef
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Post by StarionChef »

theres also differnet black ones too, with different resistance. best to test with multimeter to be sure
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Post by pcuser51 »

:roll: AArrr all too confusing :roll: no mark i dont think we have answered your questions :roll:
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Cookiemonster
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Post by Cookiemonster »

Look, it's quite simple..

JA injectors are different to JB injectors but we aren't sure about JD injectors however one lot of injectors flow in the vicinity of 800cc but is yet to be confirmed which ones although you can get black injectors or import grey injectors although how much either of them flow is yet to be determined.

Question answered.
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WANTSOM
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questions answered

Post by WANTSOM »

Yep.
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merlin
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Post by merlin »

well thank heavens thats cleared that up....
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Post by pcuser51 »

can anybody tell me the flow of the standard "black" JB injectors?
Also are there any other types that will fit that throttle body, maybe throttle body 12A turbo ones?
I found some green ones not sure what they are out of (or what they flow) but they do fit (ie. same style). I can dig around but maybe someone can save me some time!


:D These were the original questions red has not been answered
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Darkelf
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Injector Flow

Post by Darkelf »

OK I'll kick this off!

I think, and again I'm an old fart and am pulling this from a Saturday morning session sitting at the feet of the Guru memory, :D that standard JBs flow at 88cc per 10 secs.

Now I am pretty sure the 88cc is correct but what I am having trouble with is the time figure. ie Flow over Time

I know the JBs are considerable bigger than the JAs.

My suggestion is to also sit at the feet of the Guru one Sat morning. Ply him with a beer or two and learn all things Starion. :)
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mrb1
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Post by mrb1 »

Who needs Gurus. Do it yourself!
Flow as follows:
JB black 900 cc/min (2.72 ohms)
?? Green 1180 cc/min (2.75 ohms)
VR4 blue (like your selling Cookie) 585 cc/min (2.59 ohms)
Did not flow JA injectors because of lack of jumper clips to connect to the Econoseal plug. (next trip).

Now this flow test was done at 3.0 bar using TEST FLUID NOT PETROL however if someone knows what the VR4 injector flow with petrol we can adjust the numbers to suit (if needed).
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Cookiemonster
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Post by Cookiemonster »

At what duty cycle were those figures achieved?

I know the VR4 injectors are factory rated at 450cc.. but I have no idea at what fuel pressure or duty cycle this was achieved.
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mrb1
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Post by mrb1 »

That was full on flow (no pulsing). I agree the number for the VR4 injector seems a bit high :( But we did it twice. My injectors came from Eric Petila's GroupA VR4 rally car parts bin. I assumed they were standard, maybe not!
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Post by flappa »

450cc/min is measured using a timed open flow test, ie wide open. The other smaller numbers are using a pulsed flow test, ie actually doing something. A pulsed flow test is considerably more relevant to how much an injector can flow than the open test, which is why we use it.
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