AEM EMS and 1600cc injectors

Holy SHIT! 1600cc !! What do you have setup motor wise for them bad boys??

I actually need something closer to the 1000cc range but at the prices that they are offering the 1600cc injectors for I'll buy them if they'll work

You should post this question on RX7club.com. For the rotary guys it is very common for them to run 1600cc injectors and standalone. Actually my bro is running 1600cc secondary injectors and he only has an SAFC2.

Don't know if this helps but I actually just read in article in Modified mag about an Evo that was using 1600's with the AEM standalone and they mentioned having to use a box for them to work. So I am pretty sure you do.

For anyone that needs to have this question answered in the future:

Yes, you need an additonal driver if you want the car to idle well. The AEM injector driver part number 30-2710. The only problem is that there currently is not an injector battery offset table available for it which is necessary so you'll have to create your own.

In other words, buy 1000cc injectors and forget about it.

No so fast.

The AEM forum has a decent thread on this:

http://forum.aempower.com/bbs/viewtopic.php?t=14836&highlight=1600cc+injectors

g9s0x said:

No so fast.

The AEM forum has a decent thread on this:

http://forum.aempower.com/bbs/viewtopic.php?t=14836&highlight=1600cc+injectors

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Also read this:

http://forum.aempower.com/bbs/viewt...s=0&postorder=asc&highlight=injector&start=20

There seems to be conflicting info. I'm waiting on a local guy to try them out without the box and I'll report back on what happens later.

Quite a few guys on the DSMlink board running these injectors with no drama with no "special" accessories. I am plannng on probably picking a set too. For $260, you really can't beat that.

diambo4life said:

Quite a few guys on the DSMlink board running these injectors with no drama with no "special" accessories. I am plannng on probably picking a set too. For $260, you really can't beat that.

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The question seems to be around idle. I already have some huge cams and my idle quality is ok with 1250cc injectors. By going with an even larger injector the idle quality seems to decrease more.

As far as non-idle issues are concerned there don't seem to be any.

Once my buddy finishes his car this weekend then I'll see for myself just how bad the idle is with the 1600cc injectors.

DSmlink + 1600cc injectors + Correct deadtime = smooth idle.

A friend made 770whp with some spray, 1600s and the AEM. He has no extra drive box that I know of and it idles fine considering...

XakEp said:

DSmlink + 1600cc injectors + Correct deadtime = smooth idle.

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Intresting because a friend of mine sold me his 1600cc injectors because they didn't idle well with the DSMLink and big cams.

You need to adjust your 50hz slider and deadtime. If you dont try to dial them in it wont work. But a number of people have done it.

I prefer to just turn my fuel pressure up.

XakEp said:

DSmlink + 1600cc injectors + Correct deadtime = smooth idle.

Click to expand...

You run a set???

There is also something called Minimum Injector Turn-on time. Run less than 1.0 ms and they may get froze stuck. I screwed up a set of injectors(1600's) doing that. Although a smooth idle can be achieved.

I was told by an AEM dealer that I would need an additional box to run my 1600cc injectors. With that and the addition of needing a CDi box for the COP to work for my application, I chose to stick with an Electromotive unit. The TEC3r needs no extra boxs or add-ons to run either. My TEC II currently runs the injectors with no extra bs or cost.

Well I guess I'll be upgrading to a set of 1600cc injectors. My buddy dropped in a set this afternoon using an AEM EMS. The results were a dead smooth idle after a little fiddiling. So I guess you don't need the box after all.

4SFED4 said:

I was told by an AEM dealer that I would need an additional box to run my 1600cc injectors. With that and the addition of needing a CDi box for the COP to work for my application, I chose to stick with an Electromotive unit. The TEC3r needs no extra boxs or add-ons to run either. My TEC II currently runs the injectors with no extra bs or cost.

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That's BS. You don't need a CDI box for coil on plug with the EMS. There are a bunch of people including shortly myself that are running COP without any sort of CDI.

Sounds like you talked to a vendor that wanted to sell some extra parts and was hoping that you would be ignorant enough to bite.

TEC said:

That's BS. You don't need a CDI box for coil on plug with the EMS. There are a bunch of people including shortly myself that are running COP without any sort of CDI.

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It depends on your application. I was told without a CDi box I would risk blowing the candles out over 30psi of boost. I see it as large investment to just buy one without consulting anybody. If I disagree with the AEM dealer and run into problem they warned me about, how can I rightfully comlain.

4SFED4 said:

It depends on your application. I was told without a CDi box I would risk blowing the candles out over 30psi of boost. I see it as large investment to just buy one without consulting anybody. If I disagree with the AEM dealer and run into problem they warned me about, how can I rightfully comlain.

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There's no application that I am aware of that would absolutely require the use of a CDI box.

I see you are in NoVA. Do you know Brad Brooks? He use to own a Colt with a 4g63 and has a 98GSX making 560hp on 93 oct/meth. He tunes the majority of the fast cars in the area that are on the EMS. He would be the person in your area to talk to.

I know who he is, who builds his engines and what he has.
I seen a CDi box in his Colt, haven't seen the GSX yet, just pics.

BTW I tune my own stuff.