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HybridZ

which airflow to use


yenghua

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okay guys...couldn't find the answer anywhere or i may have missed it. but i was wondering if i can use the nonturbo airflow meter on a turbo l28 swap into my s30. will there be any conflicts? maybe the plug wont fit or something in that matter...any answers are greatly appreaciate...

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Sure we can give you all kinds of answers, but the right one is, it will run rich. NA AFM is smaller in diameter and set to open fully at a different airflow rate than the turbo AFM. The AFM will go to full rich and the engine won't be getting full air flow to compensate. Mixing NA and turbo parts is just a bad idea anyway.

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yenghua, so you're from Fresno too? I'm from Fresno (Clovis actually) Nice to see a neighboor on these boards :)

 

As for the post, I agreee with these guys. I was thinking about doing the same thing as you were, when my AFM went bad on me. Have you tried looking online for a used one? I see a quite a few used ones online from N/A 280zx's.

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Well if you in a bind and your afm quite working entirely you could always use the na afm but you should tighten the tension on the spring.. I'm not going into detail but thats about a short worded directions..

 

And yes it runs pig rich because its a smaller daimeter whole

 

And as for the reving either

A. Runs so rich that it starts flooding before the r's go up enough

B. the whole for the flow is to small and restricts.

I go with choice a because it would still rev in much slower but still rev....

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I went to the track Day day here in Orlando on Wed. for the Z convention to watch the drag races. There was a guy in a 260Z that had a NA AFM, NA harness, MSD 6AL, Meth. Injection, Intecooler and boost set to 15 to 17 if i recall.

 

He ran a 13.6. I did verify the NA AFM, but not the harness. He was told it could not be done and ran this set up to prove it could be.

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