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Fuel injectors..specs?

 
Old 10-20-2003, 11:37 AM
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Fuel injectors..specs?

Does anyone know the specs of our fuel injectors? Such as size, is it side feed, and high or low impedience, and maybe something electrical?
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Old 10-20-2003, 11:54 AM
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It's not side-feed. It's high-impedance (saturated-type). Not too sure on the flow-rate
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Old 10-21-2003, 08:29 AM
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240 cc confirmed by RC ENGINEERING in Cali
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Old 10-21-2003, 08:59 AM
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Originally posted by tool462
240 cc confirmed by RC ENGINEERING in Cali
I know they said this but I definitely question it. 240cc is only able to support 265 crank HP at 80% duty cycle and the stock fuel pressure. In other words, in stock form, we are maxed out. Normally there is some room to play.

Maybe the previous AV6 are 240cc??

Years ago I spoke to someone who stated the J32A2 injectors were about 310cc units. Which makes sense and would give the needed margin most manufacturers would employ.
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Old 10-21-2003, 11:36 AM
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240cc? You are kidding me!

Scalbert. 440cc is a minimum now... and even though its over the 150% requirement of the E-Manage... that's only for the auto-calculation feature... you can still program the 440cc units
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Old 10-21-2003, 11:44 AM
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I priced 440cc RC Injectors at $75 a pop (saturated-type).
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Old 10-21-2003, 11:45 AM
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Originally posted by tool462
240 cc confirmed by RC ENGINEERING in Cali
Now.. how the hell did I make 350whp with 240cc units? AND have an A/F max of 13.0??
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Old 10-21-2003, 11:52 AM
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Originally posted by allmotor_2000
Now.. how the hell did I make 350whp with 240cc units? AND have an A/F max of 13.0??
90+ PSI fuel pressure...
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Old 10-21-2003, 02:12 PM
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No.. that still does not make sense!
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Old 10-21-2003, 04:52 PM
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Originally posted by allmotor_2000
I priced 440cc RC Injectors at $75 a pop (saturated-type).
where?
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Old 10-21-2003, 05:14 PM
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Originally posted by ModAddict
where?
Where I usually get most of my non-Comptech parts from

I doubt he'll go this deep for extra sets... but maybe $85
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Old 10-21-2003, 05:18 PM
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http://www.mrgasket.com/accelpdf/ACCELfuelinjection.pdf


Do a search in the PDF and check out the flow rates for:


Model Stock flow rating ACCEL flow rating
Acura TL 97: 240 260

NSX 1997 (3.2L) 275 310
NSX 95-98 (3L) 325 370



One more source…
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Old 10-21-2003, 05:24 PM
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Originally posted by allmotor_2000
Where I usually get most of my non-Comptech parts from

I doubt he'll go this deep for extra sets... but maybe $85
Tell him you swaped in a V-12 :P
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Old 10-21-2003, 05:28 PM
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Originally posted by EricL
http://www.mrgasket.com/accelpdf/ACCELfuelinjection.pdf


Do a search in the PDF and check out the flow rates for:


Model Stock flow rating ACCEL flow rating
Acura TL 97: 240 260

NSX 1997 (3.2L) 275 310
NSX 95-98 (3L) 325 370



One more source…
That also says a Civic 1.6L EX has 240cc injectors (albeit 4 of them). The 3.0L NSX had 325cc units while the 3.2 NSX had 275cc Is this how Honda gets LEV status... running the car lean???? I suppose its probably the stock units are 240cc.
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Old 10-21-2003, 09:45 PM
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thanks guys for all the imput. i was hoping they'd be top-feed and at least 240+cc. if they were, i was planning on buying an extra 6 and swapping into my other car.
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Old 10-22-2003, 02:52 AM
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Originally posted by allmotor_2000
No.. that still does not make sense!
What I was meaning and should have specified, they are 310cc units and coupled with 100 PSI fuel pressure are capable of supporting 400+ crank HP.

However, 175 PSI fuel pressure could support that power through 240cc injectors. I doubt the pump/fuel lines/injectors would last long at that pressure.
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Old 10-22-2003, 03:18 AM
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Originally posted by EricL

Model Stock flow rating ACCEL flow rating
Acura TL 97: 240 260

NSX 1997 (3.2L) 275 310
NSX 95-98 (3L) 325 370
Thanks Eric...

Wasn't the 97 TL a 210 HP motor?? If so then running 240cc units is fine as it gives nearly a 25% window before being maxed out. Same goes with the AV6 with its 200 HP motor.

The J32A2 motor has a closer output to the NSX than it did the 97 TL or last gen AV6. As such its stock injector selection would be closer to the NSX. Even if it is not 310cc stock, it is certainly close to that.
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Old 10-22-2003, 03:32 AM
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Originally posted by allmotor_2000
Is this how Honda gets LEV status... running the car lean????
Actually, for the emissions output peak power potential and associated A/F ratio is irrelevant. At idle or part throttle the duty cycle is so low all while maintaining stoichiometric ratio. You could have 200cc units and maintain proper A/F ratio at low engine loads. They might have gone to smaller units for better atomization at the low engine loads which helped emissions.
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Old 10-22-2003, 04:08 AM
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In the end we can somewhat determine what we can reasonably go to once we know the stock pulse width at WOT.
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Old 10-22-2003, 07:06 AM
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Originally posted by scalbert
In the end we can somewhat determine what we can reasonably go to once we know the stock pulse width at WOT.
Since you are the closest to that point... how far are we from knowing this?
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Old 10-22-2003, 07:11 AM
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I'm waiting on the delivery date for the e-Manage and also on the harness (from FROG) and/or parts availibility. If I do the harness myself all sources are stating a minimum order quantity of 150 units which obviously I don't need that many.

I know I can hack my harness but if I can do it clean, I will wait another week or two. But regardless, I don't expect this to be more then a few weeks away.
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Old 10-22-2003, 07:55 PM
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Hey, so there are other manufacturers who make injectors for Honda/Acura applications that are cheaper:

Accel - $50'ish
MSD - $47

maybe some more... so it might be slightly more economical!
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Old 10-23-2003, 03:55 AM
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Old 10-23-2003, 04:46 AM
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Originally posted by allmotor_2000
Hey, so there are other manufacturers who make injectors for Honda/Acura applications that are cheaper:

Accel - $50'ish
MSD - $47

maybe some more... so it might be slightly more economical!


YES but RC Engineering is the "Comptech" of Fuel Injection.
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Old 10-23-2003, 07:04 AM
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Originally posted by tool462
YES but RC Engineering is the "Comptech" of Fuel Injection.
Well, if someone else made a flywheel clutch for my car that was half the price, I would have gotten it... considering what issues I am having!
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Old 10-23-2003, 07:28 AM
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Originally posted by allmotor_2000
Well, if someone else made a flywheel clutch for my car that was half the price, I would have gotten it... considering what issues I am having!
I had issues concerning my S/C and nobody stands behind their product more than Comptech and I would be shocked if they didnt do everything that they could to help you out.
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Old 01-24-2019, 02:57 AM
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Fuel injector

Originally Posted by tool462 View Post
YES but RC Engineering is the "Comptech" of Fuel Injection.
I have a 01 cl base manzo headers and downpipe, flowmaster catalytic converter though to catbak exhaust, cold air intake . I have taken intake manifold off and cleaned it thoroughly along with throttle body. My ? I have to replace my injectors what's the highest flow rate that I can run without running my car rich
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Old 01-24-2019, 04:29 PM
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Originally Posted by Agriff View Post
I have a 01 cl base manzo headers and downpipe, flowmaster catalytic converter though to catbak exhaust, cold air intake . I have taken intake manifold off and cleaned it thoroughly along with throttle body. My ? I have to replace my injectors what's the highest flow rate that I can run without running my car rich
Well you're responding to a post from 2003, so I'm not sure if he'll answer you.

With your setup, the stock injectors are more than enough. You've recently stated you're using a "Gte tuner chip," so the first thing you should do is throw that out.
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