rc sold their 1000cc saturated injectors for a while, im guessing they stopped because those were worse than the 750 saturated rc's.

 

Too bad these don't come in the 1600cc size too, for those running e85..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rorik &raquo;</TD></TR><TR><TD CLASS="quote">Too bad these don't come in the 1600cc size too, for those running e85..</TD></TR></TABLE>

you can get the low impedence 1600cc injectors made by bosch an they work fine on E85.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Running925 &raquo;</TD></TR><TR><TD CLASS="quote">cool idea, definatly overpriced. Anyone can pick up a resistor box for dirt cheap & it really is only a few wires. Doesn't make a mess of anything.

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LOL, don't get me wrong, but was the above statement a joke of some sort? Have you even driven a daily street car with 1000cc Precision injectors and a POS resistor box? If you think your car ran well with a resistor box, these new Bosch injectors aren't really for you. Some people just have really low expectations, like thinking a Kia is better than a Lexus because a Kia is "bang for the buck"

 

Apparently, people cant seem to comprehend the fact that an ecu designed to run saturated (high impedance) injectors doesnt run peak/hold (low impedance) injectors perfectly, even with a resistor box. A resistor box does NOT replace the correct injector driver circuit in the ecu. You can only try so hard to educate them, if they dont get it, screw em.

 

hell i wanna set of these just cause they look sweet but i just got my 750cc to idle decent...

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by locash &raquo;</TD></TR><TR><TD CLASS="quote">Apparently, people cant seem to comprehend the fact that an ecu designed to run saturated (high impedance) injectors doesnt run peak/hold (low impedance) injectors perfectly, even with a resistor box. A resistor box does NOT replace the correct injector driver circuit in the ecu. You can only try so hard to educate them, if they dont get it, screw em.
</TD></TR></TABLE>
what ecu are you referring to? cause i would imaging anybody with large injectors has an aftermarket one, are you referring to the people who run modded factory ecu's like hondata s100/s200/s300, neptune, crome etc...? I run AEM EMS personally so would i have the same problem running peak/hold injectors? I have no plans on switching to them just wondering

 

90% of the Honda guys either run an oem honda ecu based system (hondata, neptune, etc) or AEM. Neither of which have the proper drivers for a low impedance injector.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">90% of the Honda guys either run an oem honda ecu based system (hondata, neptune, etc) or AEM. Neither of which have the proper drivers for a low impedance injector. </TD></TR></TABLE>

Thank you for the quick answer would you happen to have any pics of these installed? do they come in any other sizes? Do they come in Peak&Hold? i have a lot of evo friends lol...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by locash &raquo;</TD></TR><TR><TD CLASS="quote"> A resistor box does NOT replace the correct injector driver circuit in the ecu. You can only try so hard to educate them, if they dont get it, screw em.
</TD></TR></TABLE>

Exactly, peak & hold simply means, peak & hold...lol None of our OEM injector drivers can withstand the peak amperage draw from P&H injectors. What does a resistor box do? It just adds resistance across the entire circuit, so there is less "peak and hold" amperage. That doesn't seem to make the injector work properly by reducing current across the entire operating range, hence, the necessity for injector driver boxes for large injectors in particular.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">

Thank you for the quick answer would you happen to have any pics of these installed? do they come in any other sizes? Do they come in Peak&Hold? i have a lot of evo friends lol...</TD></TR></TABLE> Here's some pics tony posted on his other thread. I love the way they look w/ the Skunk2 composite rail.

 

 

thank you for the pics V-SPEC 1, i have that same fuel rail, man that thing was a pain to install for some reason...

 

Question: what injector clips do we run with these Bosch injectors?

As for those talking about the driveability of these injectors over P&H's...I personally run RC 1000's and my idle is like stock and driveability is pretty darn good. I, however, would be willing to buy these for the sole reason that they are A. Saturated and B. Eliminate the need for that resistor box, its an eye killer

 

These use a USCAR injector clip, and they are included with the injectors. Just changed out the clips on my harness last night. They come with the connector and pins for a proper install, but you will need a "W" type crimper. If you don't have a crimper we can put pigtails on them instead.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by locash &raquo;</TD></TR><TR><TD CLASS="quote">Apparently, people cant seem to comprehend the fact that an ecu designed to run saturated (high impedance) injectors doesnt run peak/hold (low impedance) injectors perfectly, even with a resistor box. A resistor box does NOT replace the correct injector driver circuit in the ecu. You can only try so hard to educate them, if they dont get it, screw em.
</TD></TR></TABLE>

people never think about that. I was wondering when it was going to be brought up. I've always run saturated for that reason. and because i hate wiring in resistor boxes and i could just buy the right injector and not need it.

 

Unfortunately, resistor boxes were a necessary evil to some extent above the 450ish hp range. With these injectors there is no need for a resistor box, ever. If you need more fuel than these injectors can provide then it's time to step up to 160lb injectors and a peak and hold injector driver.

Another thing that was noted in testing, the flow deviation varied more from injector to injector at lower voltages and running a peak and hold injector with a resistor box increased the deviation from injector to injector. Where a set might have had a 2% deviation between them with used with a driver, that deviation can easily double when used with a resistor box.

There's really a lot more to fuel injectors that people think. Most peole think that if the car runs then is must be ok.

Keep in mind, your o2 sensor is only reading an average of the 4 cylinders. Variances in flow from injector to injector be a big contributing factor to engine failure. To give you an idea how bad it has to be before you notice there's a problem, here are the flow results from the RC injectors i took out of my race car. These were installed new and only had dyno time on them. During the tuning the car started running weird and started taking a considerable amount more fuel. After trouble shooting i determined it was the injectors and swapped them out for a new set. The new set solved the problem so i sent the old ones back for inspection. This is what i got back:

Before cleaning After cleaning
Inj. # CC/MIN Pattern Inj. # CC/MIN Pattern
1 278 Poor 1 1000 Excellent
2 394 Poor 2 1000 Excellent
3 743 Poor 3 1001 Excellent
4 802 Poor 4 1002 Excellent


That was with a total of about 45 minutes of run time.

 

that's interesting, that could have been a bad set too. I cant imagine all are like that. nice to see the results and how much of a difference there was in each injector

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">These use a USCAR injector clip, and they are included with the injectors. Just changed out the clips on my harness last night. They come with the connector and pins for a proper install, but you will need a "W" type crimper. If you don't have a crimper we can put pigtails on them instead. </TD></TR></TABLE>

Couldn't you just splice into the wires on the harness and solder the wires? Thats what I did with my RC 1000's when I had to replace the 440 saturated clips with the 1000 P&H's....

I assume you were just telling me the "clean and proper way" to do it, just making sure I had this option.

I definately think before I re-tune with some Skunk 2 cams of sort, I will be selling my RC 1000's and resistor box and buying these Bosch injectors...so much cleaner....And if they are $500, I'm really only spending $200 more after the sale....for a better function injector.

Tony just curious...from what I'm reading it sounds like I could even pick up a few whp from these injectors?

 

There is definitely potential for more power and better fuel economy with these. Better fuel atomization does both. I'm doing a turbo K20 that's been on the dyno twice now with RC 1000's and made very consistent power both times on pump gas. We'll see if there's a noticable difference in power this time, it'll be a few more days before it gets on the dyno, we're building a surge tank for the fuel system right now.

Yes, you can splice a pigtail into the stock wiring and solder it. Without the proper crimping tools, this is the best option.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote"> We'll see if there's a noticable difference in power this time, it'll be a few more days before it gets on the dyno, we're building a surge tank for the fuel system right now.

</TD></TR></TABLE>

Definately keep us posted when you do the dyno. I'd, for one, be very interested in seeing the results.

 

damn...I might put in a order for these suckas after your opinion. BNIB RC750s Saturated, anyone? 8)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">

Before cleaning After cleaning
Inj. # CC/MIN Pattern Inj. # CC/MIN Pattern
1 278 Poor 1 1000 Excellent
2 394 Poor 2 1000 Excellent
3 743 Poor 3 1001 Excellent
4 802 Poor 4 1002 Excellent


That was with a total of about 45 minutes of run time. </TD></TR></TABLE>


i had nearly the exact same problem.

tony i have some adaptors here for another injector that turn something that looks very similar to that into something that will plug into an obd1 clip. i'll have to look and see if its the same on the injector side.

 

Yeah, i know which adaptors you're talking about, they'll work, but are too rich for Honda blood. lol

 

haha gotcha

 

any reason why someone wouldnt use these?

He claims all the way up to 1600 cc saturated

https://honda-tech.com/zero...55928