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 Mazda RX-7s
 Turbocharged NA
 s4 or s5 maf		  New Topic  Reply to Topic
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connors14
New Member

1 Posts
Posted - Jul 08 2009 :  06:55:29 AM  Show Profile  Reply with Quote

did you use an s4 maf for your set up Aaron?
it looked like u used an s5 but i wasnt sure

also then a question about when u tuned it

did u just use a/f ratios of what most turbo guys use to tune?

isnt it like 15:1 at idle 14:1 to 3000rpm then 12:1 till redline?

thanks

Aaron Cake
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Canada
6718 Posts
Posted - Jul 16 2009 :  09:58:14 AM  Show Profile  Visit Aaron Cake's Homepage  Send Aaron Cake an ICQ Message  Send Aaron Cake a Yahoo! Message  Reply with Quote
S4.

It would be very hard to make a rotary idle at 15:1. The idle becomes unsteady if you start to go leaner then 13.5:1.

13.5:1 is a good place to start at moderate load out of boost. It should be close to 14.7:1 during cruise and then you can use closed loop to lean it out a bit more.

Under boost, 12.5:1 up to a few PSI, then 12:1 until about 5 PSI, then 11.5:1 from that point on.
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