Justin Olson

Anyone use this injector driver box for large injectors 1000cc+

"AEM's Peak & Hold Injector Driver contains 10 independent injector drive channels. Each channel supplies full battery voltage to a fuel injector for rapid current rise, in order to produce positive injector opening. When load current reaches 4.1A (amps), the injector driver reduces the load current to 1.1A and operates as a constant current source. This condition holds the injector open, and reduces system power dissipation. If the current fails to reach 4.1A within 5mS, the driver module automatically reduces the load current to 1.1A.

Installation is straightforward. Users simply hook the injector trigger wires from an ECU to the module, and then hook the output wires from the module to your injectors. Any number of channels can be used from one to 10."

http://www.sportcompactonly.co...=shop


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">"My car has 1600cc's, idles at 1100rpm, 13.0 a/f. No injector driver and I have enough fuel with three Walbro's and the 1600's for over 1300rwhp with ease.
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Undefeated against all 6spd Supras "

[quote]
Quote:
Originally Posted by WOTM
My car has 1600cc's, idles at 1100rpm, 13.0 a/f. No injector driver and I have enough fuel with three Walbro's and the 1600's for over 1300rwhp with ease.</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">
Same here but if you drive your supra around town in stop and go traffic you will kill the plugs very quickly with the 1600's... I installed the AEM injector driver and haven't had this problem and can idle at 14.7-15.0 A/F with no problems at 1100rpm.
</TD></TR></TABLE>

http://www.supraforums.com/for...r+box

D-tuned

I just brought one from boostfed last nite. i'm going to install it this weekend. I'm running 1600cc injectors. I'll post up on monday my thought on the injector driver.

Justin Olson

Sound really good. What ecu are you using it with?

Regards,
Justin

DaveF

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">Sound really good. What ecu are you using it with?

Regards,
Justin</TD></TR></TABLE><TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">Sound really good. What ecu are you using it with?

Regards,
Justin</TD></TR></TABLE>

aem ?

bottlefedintegra

I use it with 1600 cc and PG billet rocker arm so vtec is on all the time and my car
idles around 1300rpm and starts up with no problem at all.

Justin Olson

Do you have any comparison before and after? Was there a large improvement in idle stability or how far you could lean it out at idle?

Regards,
Justin

D-tuned

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">Sound really good. What ecu are you using it with?

Regards,
Justin</TD></TR></TABLE>

AEM EMS 1050

D-tuned

i think hybridhatch on here is running the injector driver with 1600cc. he said the car idles like stock @ 900rpms

.dave

Is there a certain size where having the injector driver box would be necessary, or would any peak and hold injectors benefit from having this?

Boostfed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by daveG &raquo;</TD></TR><TR><TD CLASS="quote">Is there a certain size where having the injector driver box would be necessary, or would any peak and hold injectors benefit from having this?</TD></TR></TABLE>
Any peak and hold actually because an Injector Driver is the correct way to run a peak and hold injector as opposed to a Resistor box EVEN though thye work. On BIG injectors teh Driver box will really benefit you.

Boostfed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D-tuned &raquo;</TD></TR><TR><TD CLASS="quote">i think hybridhatch on here is running the injector driver with 1600cc. he said the car idles like stock @ 900rpms</TD></TR></TABLE>

That is what I was told also

Justin Olson

Is there any advantage to using this box on a standalone that can already run low impedence injectors, or is this just needed for aem and such where they come with high impedence injector drivers?

Boostfed

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Justin Olson &raquo;</TD></TR><TR><TD CLASS="quote">Is there any advantage to using this box on a standalone that can already run low impedence injectors, or is this just needed for aem and such where they come with high impedence injector drivers?</TD></TR></TABLE>

Anything that doesnt have Peak and hold Injector drivers already

Justin Olson

Well I'm looking at using megasquirt 2 which can run high or low impedence injectors. I'm just worried about idle and fouling plugs so I was thinking about adding in the AEM peak and hold driver to help out with massive injectors.

Justin

HYBRID_H@TCH

correction..

mine idles at 850 with 1600cc injectors..I have 8 injectors thou..(4) 1000cc and (4) 1600cc..all run thru the driver box..

hardest thing to do it make your own battery offset for the driver box on a aem ems..

D-tuned

I got this from the AEM forum.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JR AEM TECH &raquo;</TD></TR><TR><TD CLASS="quote">One of the benefits of the peak & hold injector box is faster injector response time and more consistant injector response times. This generally is viewed as a more stable idle when using bigger injectors.

Another benefit is that you gat a little more headroom at very high duty cycles & RPM.

On our drag car (6.52 @ 214) we were around 95% duty cycle at 10,000 rpm. With the P&H drivers, we are now running at 80% duty cycle at 10,000 RPM while delivering the same amount of fuel.

We dont expect any more HP was added, just the reduction in response time means more time to deliver fuel at any specific RPM.

Also, you can piggyback as many drive channels on a single trigger wire as you want, so you could drive 40 injectors in 10 banks of 4, with each getting the full power & fast response time. Or, if you wanted to get all extreme, you could drive all 40 injectors off of one injector output and get pretty repeatable results as well.
</TD></TR></TABLE>

FyReo3

I am currently running the FJO P&H driver box. It helped out alot with 1000cc injectors, especially at idle.

Andy4dtw

Are the injector drivers compatible with any system? or they only compatible with AEM? I'm on the same boat as you Justin but I already have hondata.

Justin Olson

They are combatible with any system that doesn't have P&H drivers. A lot of mustang guys use them on stock ecu to drive big injectors.

Justin

Andy4dtw

It's funny how most of these topics that you create are the same questions I have. BTW how much do those injector drivers go for?

Justin Olson

They cost right around $295. I'd PM boostfed for a good price on one.

Justin

D-tuned

thats where i got mind from.
BOOSTFED

RMRf23

I was wondering about this product as well. I am only running 750cc injectors with a resistor box but the injectors don't like to be leaned out at idle. Is this really only beneficial for those using 1000cc injectors or larger?
Or would I be able to have better control over my smaller injectors now?
Right now the car has a stock feeling idle at around 900 at roughly 13.8 a/f. I guess it's one of those things if the money is worth the difference

HYBRID_H@TCH

we ran one of these P&H boxes on a car with 880cc injectors and it made idle alot better..