AFC Neo and turbo? - Toyota RAV4 Forums
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#1 (permalink) Old 12-29-2012, 05:05 PM
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AFC Neo and turbo?

I'm looking for someone who has turbo,d their stock ecu and used an AFC Neo. Do you have any tune drift or auto correction problems? I have a 99' auto 4dr 4wd. I have the AFC and will be adding a small turbo(only looking for about 6 psi and a quick spool).
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#2 (permalink) Old 12-29-2012, 05:11 PM
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I also meant to ask about the stock fuel system components and how much power they will support and if I will need to upgrade at the 200hp level. Thanks
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#3 (permalink) Old 01-09-2013, 12:43 PM
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Anyone?

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#4 (permalink) Old 01-09-2013, 05:58 PM
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I have an Apexi, but my engine is bone stock. No turbo, just a header a good intake and K&N filter and some electrical mods. That's it.
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#5 (permalink) Old 01-09-2013, 08:56 PM
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Thanks. I know that our ravs use a map sensor instead of a maf sensor. The AFC increases or decreases the map signal to the ecu according to how you program it. I just wonder if the rav ecu has fuel support in high map pressure range or would it just peg the ecu at a predetermined point. In other words is the ecu only programmed for vacuum mapping and not boost mapping since our ravs are n/a.
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#6 (permalink) Old 01-09-2013, 09:45 PM
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Their is a guy in this forum that can give you all the answer you want. He is very well connected with Dynatune. He posted a very well documentated post here regarding everything you might ask about tming, boost, and gave a ton of explination, parts, info, FAQ. you name it, the guy posted it. I'm going to try to dig in and give you his name and post.I'll bet, you will get all the info you need. He has a red RAV4.1. Let me dig.
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#7 (permalink) Old 01-09-2013, 10:09 PM
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Got him, BTW its not Dynatune.com, its DIYautotune.com NEALD, get in touch with jamesl. He knows his stuff.

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#8 (permalink) Old 01-10-2013, 08:24 AM
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Oh OK. Yes I almost went with megasquirt on another project, but that was non emissions vehicle. This vehicle has to pass not only the sniffer but also an OBD scan for yearly inspections. That is why I need to keep the stock ecm. I guess if I can't turbo it I will just do n/a bolt ons .Thanks for digging for the info, I appreciate the help.

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#9 (permalink) Old 01-16-2013, 06:27 PM
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Hate to break it to you, but unless you pull timing out over 100kpa then you'll blow your engine. An AFC Neo won't help with that. The stock ECU won't have any mapping over 100kpa because on an NA engine that is the absolute highest air pressure you will ever see. So when you hit 100kpa your timing and fuel calcs will not change.

Word of advice:

NEVER TURBO-CHARGE A CAR UNLESS YOU CAN TUNE TIMING. EVER. PERIOD. FULL-STOP. END OF STORY.

As for the stock fuel requirements at 7psi I'm running about 60-70% duty and 170hp on my 320cc injectors so the stock injectors, which are 240cc if memory serves me, will not handle much boost at all. For 200hp I'd go for at least 350cc.
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#10 (permalink) Old 01-16-2013, 06:58 PM
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I think Jazzy right. That is why anyone who is going to turbocharge his engine, do AEM engine managment system.
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