Hi Folks,

Looking at switching to some 1600cc injectors as I know the 910cc Injectors are at 85% duty at 500hp, and therefore won't support the power levels we are aim at next year.

Now here is the question.. Who are you buying your 1600cc injectors from? I see sets of 4 for $275 on EBay, and they are BOSCH just like the 910cc set I am using now.

I'd like to get some soon, and maybe head to the dyno with this motor and get the map setup for 1600cc injectors in the winter.

 

I bought mine used from Geoff on here.

 

Mark I am making 700 on 1000cc with an FJO injector driver. 1600's are BIG injectors.

 

1600cc bosch or the SVO ford injectors will all work the reason the price is so cheap its domestic injector made for the domestic rail opening. IF you buy precison or RC they are made for the honda rail only difference.

 

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

Looking at switching to some 1600cc injectors as I know the 910cc Injectors are at 85% duty at 500hp, and therefore won't support the power levels we are aim at next year.

Who are you buying your 1600cc injectors from?</TD></TR></TABLE>

I get all my precision injectors from Arturbo on here.

What is your fuel pressure, fuel pump, feedline size and power wire size going to the pump? That power is pretty low for that % duty cycle on those injectors.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blown90hatcH &raquo;</TD></TR><TR><TD CLASS="quote">
What is your fuel pressure, fuel pump, feedline size and power wire size going to the pump? That power is pretty low for that % duty cycle on those injectors. </TD></TR></TABLE>

50psi base pressure, Aeromotive A1000, -8 Fuel line split T-eed to both sides of the fuel rail. -8 from center of rail to regulator, and -8 back to fuel cell.

12 Gauge to Aeromotive pump for power, and 14 gauge for ground 8 inches long.

I am not toooo worried about the fact that I am close on 910cc injectors. I only made 400hp on these same injectors on my Mazda Miata, so they could be smaller than I think they are as I got them used many years ago. Main thing is that if I am going to get new injectors, I might as well get the big suckers incase we decide to really turn the wick up on a C16/VP Import Tune.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by b18bturbo &raquo;</TD></TR><TR><TD CLASS="quote">1600cc bosch or the SVO ford injectors will all work the reason the price is so cheap its domestic injector made for the domestic rail opening. IF you buy precison or RC they are made for the honda rail only difference.</TD></TR></TABLE>

Yeah.. I use that style now... Really quite easy to modify them to work.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by phatgsr98 &raquo;</TD></TR><TR><TD CLASS="quote">Mark I am making 700 on 1000cc with an FJO injector driver. 1600's are BIG injectors.</TD></TR></TABLE>

I will take a peak at a datalog tonite. I seem to remember 83% at 9100rpm for some reason from the Hondata s300. Could be wrong.

 

cars in spfwd are at the max of the 1600cc injectors. def. dont go smaller than that....with the set up you have, id look into doing 8 injectors.

 

I'll put in a good word for RC injectors.. they are all Ive ever used and NEVER had a problem.. (probably 6 different sets over 9 years)

 

i love rc injectors, however they get pricey once you get above the 750's

 

I'm now wondering how hard it would be to hookup 2 sets of 910cc Injectors and have the Hondata control them. I discussed this with a local electronics guru a little while ago, and he did not think it would be a problem to make a little controller.

2 X 910 = 1820cc.

Might be a good idea. Basically the Hondata would only see the load of 4 injectors, but it would actually be 8.

I dunno.. Maybe getting toooo complex now, but I like that kind of stuff....

 

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

Yeah.. I use that style now... Really quite easy to modify them to work.</TD></TR></TABLE>

A little off topic, but what's has to be modified for the injectors to fit a honda fuel rail?

 

I just changed the O-Ring to a Honda style, and then ground down the outter part of the tip with a dremel. Worked fine for many years now....

 

maybe I am remembering wrong, because it has been a while since Ive played with the Hondata, but I feel like it could run staged injectors.. maybe I am just confusing iit with my AEM, so dont hold me to it, but I thought....

anyways, staged is probably a better move... especially since trying to get the hondata to idle REALLY big injectors was kinda hit-or-miss.. I got it to idle 1100's but I dont think it liked it..

 

dont even try to stage your injectors. its a stupid idea.......can you say hydrolock, anyone ??

we bent a crower rod on a damn burnout because of this............

 

Hondata won't do staged injection, and i'd like to avoid that anyways. Many people have idle 1600cc injectors using the FJO Injector driver and S300.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dturbocivic &raquo;</TD></TR><TR><TD CLASS="quote">dont even try to stage your injectors. its a stupid idea.......can you say hydrolock, anyone ??

we bent a crower rod on a damn burnout because of this............</TD></TR></TABLE>

Huh, we run staged injectors on alot of cars with no problems. How can it cause it to hydrolock?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Project-D &raquo;</TD></TR><TR><TD CLASS="quote">Hondata won't do staged injection, and i'd like to avoid that anyways. Many people have idle 1600cc injectors using the FJO Injector driver and S300.</TD></TR></TABLE>

I idle my 1600cc with the FJO driver and S200 around 1500rpm and 14:1 A/F. There are a lot of people that make the 1600's idle any where from 1200-1500rpm with no problems.

 

ours were tuning on @ a specified throttle percentage i belive... so it would get a ton of fuel at that percentage...say you let off right after it get all that fuel.. and its not all burnt.....

we were running on 4 from idle.. then the next 4 would come in @ throttle %...

https://honda-tech.com/zerothread?id=1293066&page=1

 

Ok, so let's change your statement to "rigged up staged injection sucks, if you want to do it, make sure you have a decent computer that can control it". lol

And if you want to "rig" yours up a better way, have a hobbs switch turn on a relay for the secondary injector power at a preset boost level.

There's nothing wrong with staged injection, i'd take it any day over running huge primary injectors!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tony1 &raquo;</TD></TR><TR><TD CLASS="quote">Ok, so let's change your statement to "rigged up staged injection sucks, if you want to do it, make sure you have a decent computer that can control it". lol

And if you want to "rig" yours up a better way, have a hobbs switch turn on a relay for the secondary injector power at a preset boost level.

There's nothing wrong with staged injection, i'd take it any day over running huge primary injectors!</TD></TR></TABLE>

haha. i should say that... DFI is simple to use... buts its causing us headaches....


ok. so we turn on the extras @ a specified boost level, what about injector dutycycle for those injectors ? from what im told, with "model M" you can configure outputs/maps to do this kind of stuff the "right way"

@ the moment.. we are trying to add 2 extra 160's to the chargepipe...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Project-D &raquo;</TD></TR><TR><TD CLASS="quote">I'm now wondering how hard it would be to hookup 2 sets of 910cc Injectors and have the Hondata control them. I discussed this with a local electronics guru a little while ago, and he did not think it would be a problem to make a little controller.

2 X 910 = 1820cc.

Might be a good idea. Basically the Hondata would only see the load of 4 injectors, but it would actually be 8.

I dunno.. Maybe getting toooo complex now, but I like that kind of stuff....</TD></TR></TABLE>

That isn't complex at all. Run all low resistance injectors, and no resistor box. Run each pair of injectors in series, and then back to the ecm. The ecm should see the proper resistance it needs, but run two injectors per driver.

 

We now run all eight from an idle all the way to redline. Seamless fuel delivery. On my pos DFI.

 

What are you going to do when you go to 3 injectors per hole? We just did it with Motec...

 

3 injectors huh...........he going ***** out for norwalk?