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Old 01-29-2018, 06:35 AM
ZainRacer ZainRacer is offline
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Default AEM Infinity on SR20

Hey!
So I got my AEM Infinity ecu and wiring harness last week.

Wanted to see if you guys had suggestions on ideal location to place the MAP and IAT sensors. Also, right now the AEM will pick up Crank/cam position from the stock CAS. Any benefit to switching to the AEM trigger wheel? (My ecu didn't come with it, but seems like they are fairly cheap)

Saw a thread about this recently...http://nissanroadracing.com/showthread.php?t=6066
I believe this is the correct part number for RWD SR20: AEM Electronics 30-8760. Can someone that has one verify?

BTW this is all going an a S15 SR20 with stock intake manifold and stock DET head.

Anything else to watch out for?

I am also switching to LS2 ignition coils since it was easy to incorporate that into the harness now vs. doing it later.
What are you guys using for sparkplug wires with larger coils? DIY kit?

Thanks!
-Zain
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Old 01-29-2018, 08:05 AM
Def Def is online now
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I would probably switch to the AEM CAS disk because it's easy to tell "what it's doing." You can run it via the EPM (engine position module) 12 crank + 1 cam setting in the AEM Infinity wizard. I did this for a while on an S15 SR.

IMO, I'd skip the LS2 coils. VQ35DE coils fit just fine if you chop off one of the mounting bosses for the coil in the number 1 hole, and they plug right into the S15 coilpack harness.

CAS disk p/n looks right: http://www.aemelectronics.com/files/...ger%20Disc.pdf


If you're on this for a long period of time, I'd probably do a FReddy intake plenum for the S15 manifold. The stocker has long runners and a small plenum volume. The GReddy/FReddy will take a tad of runner length out and give a lot more plenum volume. Really shouldn't lose you much on the low end, but should help out midrange and top end.
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Old 01-30-2018, 07:16 PM
ZainRacer ZainRacer is offline
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Quote:
Originally Posted by Def View Post
I would probably switch to the AEM CAS disk because it's easy to tell "what it's doing." You can run it via the EPM (engine position module) 12 crank + 1 cam setting in the AEM Infinity wizard. I did this for a while on an S15 SR.

IMO, I'd skip the LS2 coils. VQ35DE coils fit just fine if you chop off one of the mounting bosses for the coil in the number 1 hole, and they plug right into the S15 coilpack harness.

CAS disk p/n looks right: http://www.aemelectronics.com/files/...ger%20Disc.pdf


If you're on this for a long period of time, I'd probably do a FReddy intake plenum for the S15 manifold. The stocker has long runners and a small plenum volume. The GReddy/FReddy will take a tad of runner length out and give a lot more plenum volume. Really shouldn't lose you much on the low end, but should help out midrange and top end.

Thanks for the feedback!
Will order the AEM Disk.
I already got the LS coils and had wiring specialties wire do the harness for the LS coils to be plug and play. I can check and see how they are wired to see if the wiring on my S15 Coil harness even lines up. Might have to repin for it to work. When I was researching, it seemed like there were no real down sides to the LS coils, they might be kinda over kill for my setup but they are cheap!

Will an ebay plenum really make that big of a difference? The Greddy mainfold is a nice 1 piece design but super expensive. The ebay ones only seems to replace the Plenum not the runners. I am also worried about leaks with the ebay ones but not sure if thats a common issue. I could clean up the casting easily.
They seem cheap so might be worth a shot, not much to loose I guess.
https://www.ebay.com/itm/ALUMINUM-TU...lZ2-f5&vxp=mtr

Thoughts on location for MAP and IAT?
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Old 03-30-2018, 10:05 AM
Def Def is online now
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The larger plenum size and taking a little bit of runner length are both good things. I'd run the plenum personally.

I'd go MAP off a dedicated port on the plenum (preferably in the middle of the plenum, 90 degrees off from the runner centerline). IAT I'd put in the IC cold pipe a little before the throttle body.
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