can anyone tell me what the flow rate is on these please 350-360 cc/min?


[Modified by Michael Delaney, 10:09 AM 5/10/2002]

 

try the "under the hood" forum at s2000online.com, Tuan, you`ll get a quick response. Or use their search

 

Off the top of my head you are in the right range. Use vtecvoodoo suggestion, they have the answers to all that is S2000.

 

many thanks guys. I'm hoping these will do the trick for my B18C setup and am having some problems....need more info on the specs...I'll try your suggestion
believe it or not the, I stumped even the usual gurus on this board with this one...

cheers

 

my luck...the board is down....



I was told on the temp board that they are 360 cc/min saturated. Spoon apparently makes S2000 upgrades.

Now, will these puppies fly in my B18C1?

 

I couldn't imagine why not but Spoon marks everything in the world up into the stratoshere. Why pay the extra money when Spoon doesn't even make the part themselves. (Betcha didn't know that) What ECU are you using? The last thing to check would be whether its requires low or high resistance injectors. Most Honda implementations are low resistance.

My personal question: What the hell would you need the injectors for? The B18C1 comes out of the factory with fairly beefy (for a 4cyl engine at least) injectors. I'm running 340cc on a Supercharged S2000 ~360 crank hp but with little room to spare. What gives here? Why would you need 360cc injectors on a B18 unless you were making over 300hp?

 

I'm not keen on Spoon parts per se. They have S2000 injectors though. I'm just keen on getting around 350 cc/min saturated flow injectors. If stock S2000 injectors are that flow rate, saturated, and fit in my IM, then they'll fit the bill.

I have 12:1 static CR, headporting, ported single stage IM , Bosch Porsche fuel pump, and running a Yoshio reprogrammed ECU done on the dyno with a wideband Horiba O2 sensor ( http://www.japanese-auto.com ) ...I need to over fuel on the injectors and lean down using the programming to keep the duty cycle reasonable on pump gas: it was either use 310 RC injectors, 310 Celica GTS injectors, Toyota turbo AWD 440 injectors, or these puppies if the stock ones are saturated and indeed actually 360 cc/min as the people on the s2ki.com board claim. Also Yoshio prefers Keihin pintles over RC Lucas disc...spray pattern is better...



for most piggybacks and ECU reprogramming you don't want to turn up the duty cycle and fuel pressure...really strains the injectors and is less reliable.


For instance on a VAFC, you can only crank up the MAP signal by 14%. If you need to exceed this then, the ECU assumes that you are running boost and kicks into limp mode. Most people overfuel on the injectors and use the VAFC to lean down..you get much more control of the duty cycle and there is no limitation on the VAFC to lean down compared to trying to push the injector up.

So you are saying they are stock 340 cc/min and peak & hold?
...can you please confirm this?

The stock GSR injectors are 240 cc/min saturated (high resistance) just like the NSX 3L injectors.

http://www.nsxprime.com/ubb/Forum10/HTML/000243.html

BTW not all honda implementations are all low resistance.

http://www.allmotorhonda.com/techpages/injector.htm

For post 1996 Integras, Civics, NSX, and Preludes, the injectors are high resistance saturated....unfortunately I don't know about the S2000 and need your help confirming their fitment , resistance, and flow rate....

thanks in advance....





Modified by Michael Delaney at 12:34 PM 6/7/2004

 

just a suggestion, but OBD1 prelude injectors 92-96 flow at 345cc...
they run off a resistor pack... btw they have olive tips.!

good luck.!

 

thanks for the suggestion but I'm trying to stick with high resistance injectors and avoid the whole resistor pack schmozzle if I can.

here are the instructions BTW...for those of you interested in rumaging around looking for a resistor pack from a lude or a civic , cutting ,and splicing :

http://www.hondata.com/techinjector.html


[Modified by Michael Delaney, 10:31 AM 5/12/2002]

 

Well just as an FYI as a wrap up to this post (since I could not get the info here), I just got off the phone with John at RC Engineering:

The stock S2000 injectors are flow rated at 360 cc/min at 42-43 psi. They are saturated (high resistance). They have a pintle nozzle. The clips are OBD2 and compatible with any OBD2 Honda clip. The upper O-ring will fit any stock Honda fuel rail. they are as wide as the B18C/OBD2 H22 injectors and so will fit width wise with the lower O-ring mount but they are shorter and so you must either mill the manifold's rail mount down or mill the fuel rail mount down to move the injector down further into the injector boss of the IM to be like stock. If the stock fuel rail has a washer at the mount, then removal of the washer will be fine and have the same effect.

John's amazing....


[Modified by Michael Delaney, 9:20 AM 5/13/2002]

 

Good info

 

Good Cack

 

Good info, thanks much.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Michael Delaney &raquo;</TD></TR><TR><TD CLASS="quote">Well just as an FYI as a wrap up to this post (since I could not get the info here), I just got off the phone with John at RC Engineering:

The stock S2000 injectors are flow rated at 360 cc/min at 42-43 psi. They are saturated (high resistance). They have a pintle nozzle. The clips are OBD2 and compatible with any OBD2 Honda clip. The upper O-ring will fit any stock Honda fuel rail. they are as wide as the B18C/OBD2 H22 injectors and so will fit width wise with the lower O-ring mount but they are shorter and so you must either mill the manifold's rail mount down or mill the fuel rail mount down to move the injector down further into the injector boss of the IM to be like stock. If the stock fuel rail has a washer at the mount, then removal of the washer will be fine and have the same effect.

John's amazing....


[Modified by Michael Delaney, 9:20 AM 5/13/2002]</TD></TR></TABLE>

.....what about aftermarket fuel rails like AEM, Benen, etc? Need to mill, or no?

 

I have a spare s2000 fuel rail. Can I use it on ITR?