Injector Upgrade-Possible?
09-20-2005, 06:35 PM
#1
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Location: St. Petersburg & Orlando Florida
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Injector Upgrade-Possible?
Ok... i have injectors (2 or 3 of them) that have the ends broken off [leaking], on the engine i just got. How big of an injector can the stock ECU control (even if it does run a little rich). I have a whole set of 270cc top feed injectors off of some random Single Cam KA24's i could install, I'm pretty sure thats the same size (give or take 5cc's/min) as the turbo 280 injectors. Just for clarification the stock N/A injectors are 185cc/min right?! Thanks.
09-20-2005, 07:11 PM
#2
Correct me someone if I'm wrong... but KA24DE injectors are HIGH-IMPEDENCE and they have completely diff tips. The 280zx ECU, and most pre-OBD ecu's don't like different size injectors. That's why there are stand alones.
09-20-2005, 10:37 PM
#3
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Location: St. Petersburg & Orlando Florida
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you can take the rubber grommets from the KA intake manifold and i think they fit with that. Yea, forgot about the differing resistance between the two. How about some DSM 255cc low impedance injectors off a 420a (neon/eclipse)? or just a place to find some cheap L-series injectors, that deliver fairly quickly?? Just trying to see if i can work with what i got.
09-21-2005, 12:49 AM
#4
Externally Wastegated
Join Date: Oct 2001
Location: San Diego
Posts: 1,220
If the 240sx injectors are high impedence, you'll need to run some resistors inline with the ecu or else it will get fried, along with you risk melting the connectors at the fuel injectors and starting a fire. Someone on hybridz had that problem.
09-21-2005, 08:16 AM
#5
The Evil Twin
Join Date: Mar 2001
Location: Seattle, WA
Posts: 9,294
My Altima's KA24DE fuel rail clamped the injectors inside of the rail. There were no fuel hoses off the back end like the Z has. Are those injectors you have even the correct style of injector for installing?
09-21-2005, 08:23 AM
#6
Originally Posted by Bleach
My Altima's KA24DE fuel rail clamped the injectors inside of the rail. There were no fuel hoses off the back end like the Z has. Are those injectors you have even the correct style of injector for installing?
09-21-2005, 08:28 AM
#7
RubberBerner... I would go to a junk yard / wrecking yard & see if u can get some spares for cheap (or keep looking on ebay). If you go higher CC... you will throw off the stock ecu & you'll just run way rich & carbon up your combustion chamber.
09-21-2005, 07:32 PM
#8
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Location: Temecula, CA
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People have been known to install the RX7 injectors. I believe off the FC-cars. I don't know what other mods are needed or if they're even compatible with the NA ECU, but it HAS been done. I'm sure HybridZ should have some info on that one. Can't think of where else I would have read about that one. Problem is sourcing 6 of them. Each motor only came with two.
www.hybridz.org
www.hybridz.org
09-21-2005, 07:53 PM
#10
Originally Posted by jfairladyz
People have been known to install the RX7 injectors. I believe off the FC-cars. I don't know what other mods are needed or if they're even compatible with the NA ECU, but it HAS been done. I'm sure HybridZ should have some info on that one. Can't think of where else I would have read about that one. Problem is sourcing 6 of them. Each motor only came with two.
www.hybridz.org
www.hybridz.org
BTW... Each motor came w/ 4.
Last edited by NismoPick; 09-21-2005 at 07:55 PM.
My bad. Hey, I'm a Z guy 
09-21-2005, 11:53 PM
#12
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Wankle...what a wierdo! lol anybody seen the improvement on the rotary? pretty cool if you're into how things work- called the quasiturbine engine here's a link to read about it http://auto.howstuffworks.com/quasiturbine6.htm
09-22-2005, 10:24 AM
#13
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Hmm, even more efficient than the wankel huh? Thats pretty amazing. Doesn't look like it could handle the high mileage seen be cars though. The wankel could barely keep it's seals intact, and that things got 8 of em! I don't know though, maybe with having the combustion more spead out it would put less stress on the individual parts? All in all, still pretty cool.
09-22-2005, 10:30 AM
#14
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Originally Posted by jfairladyz
Hmm, even more efficient than the wankel huh? Thats pretty amazing. Doesn't look like it could handle the high mileage seen be cars though. The wankel could barely keep it's seals intact, and that things got 8 of em! I don't know though, maybe with having the combustion more spead out it would put less stress on the individual parts? All in all, still pretty cool.
09-22-2005, 10:56 AM
#15
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Location: Temecula, CA
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That's the only thing I don't like about the rotory. And if you upgrade to thicker seals then you don't get full sealing which leads to poor street performance. It's a give and take. The only "reliable" way to add power to the rotory is to add more rotors. Now a 20B, that would be nice. I wonder if anyones ever rigged up a 4 rotor? That would be sick.
09-22-2005, 05:38 PM
#22
Doesn't post much...
Join Date: Dec 2004
Location: Escondido (San Diego) California
Posts: 3,617
So You're that guy from the last Matrix movie... you know the guy in the white suit that spoke in long winded jibberish just to **** off Johnny Utah or Neo or whatever the hell his name is while all the tv monitors in the background show a slightly different version of the current situation... "The Architect"... yeah that's it. You're that guy aren't you?
Rod.
Rod.
09-22-2005, 07:05 PM
#23
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Location: Temecula, CA
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lww, you own AT&T or something? How'd you get line like that? T1's down right unaffordable. But an OC line, now that's enough bandwidth to to be your own ISP.
And to think, I can't even get DSL where I live.
And to think, I can't even get DSL where I live.
09-22-2005, 09:12 PM
#25
Originally Posted by RubberBerner
Who's post are you saying that about...im confused. 
Edit... oh yeah... and I read somebody's post about blowing a gasket @ 30,xxx miles??? I think that's the drivers fault, but I dunno the story.
