injector location
I've been installing an AEM system on my stock RX-7. I have not yet attempted to drill/tap anywhere for the injector. I know I'm going to put it somewhere after the intercooler. Is there an optimal place? I was thinking that the more space between the injection point and the UIM would allow more time for the cooling effect. Just looking for a tip otherwise I will just stick closer to the intercooler outlet.
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I asked a similar question in my thread here.
https://www.rx7club.com/auxiliary-injection-173/nozzle-vs-ait-sensor-placement-water-only-setup-828699/ This was Howard's response which is what I followed as closely as possible. I ended up mounting in the TB elbow since I could tap it and screw in the injector. I had to concede a bit and mount it a couple of inches closer to the TB than I would have ideally liked, but it helped with line routing and general ease of use by a bunch.
Originally Posted by Howard Coleman
(Post 9718896)
one nozzle:
best placement at 4:30 looking at the upstream opening of the elbow. that way you bias against the 90 degree turn and bias toward the upper secondary butterflies. two nozzles: 3 oclock and 6 oclock location: either in the silicone coupler just in front of the elbow or in the first 2 longitudinal inches from the upstream start of the elbow. hc |
That is a huge help. I will likely do the same thing as you did.
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smack bang in front of the turbo.
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:werd:
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Preturbo!!
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UIM 2 nozzles one per secondary port
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My system is mostly for added knock protection and cleaning. My car is a stock aside from a downpipe and I'll be keeping it at stock boost levels. I'm just going to have one nozzle and it will be after the intercooler.
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I have the stock elbow and i mounted it in the little dimple on the side about halfway up the elbow.
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So would you guys recommend getting the Greddy elbow w/flange if you were going to buy an elbow anyway? This would be good for a one injector set up.
It seems to be better in some way than mounting it in the silicon coupler before the elbow. But I would in no way suggest anything other than what HC says, he knows his shit |
You might as welll get one with the bung because you can always plug it. I would try to put the injector further upstream if possible. I drilled and tapped my stock plastic pipe a closer to the middle.
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Further upstream would mean that the mixture would be atomized a bit better before hitting the throttle body?
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Pre turbo.
Whether your using it for knock prevention, cleaning or IAT pre turbo is THE BEST. |
I'm a noob when it comes to AI so all the info I get is from reading HC's threads. He has his injector location post-IC before the elbow.
Is there a pre-turbo location vs elbow location thread you fellows can direct me towards? (dont mean to thread jack) |
Dont know if their is a thread.
I have tried both. Pre turbo works much better. My experience is more focused on water. NOT meth. |
Originally Posted by Finster
(Post 9750348)
Further upstream would mean that the mixture would be atomized a bit better before hitting the throttle body?
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Originally Posted by rx72c
(Post 9750815)
Dont know if their is a thread.
I have tried both. Pre turbo works much better. My experience is more focused on water. NOT meth. he layed over 700rwhp in a 13b on pump pre turbo. |
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