RX-7 Injector idle quality? - Miata Turbo Forum - Boost cars, acquire cats.

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View Poll Results: RX7 Injector idle quality
Great 7 53.85%
A little lumpy 6 46.15%
Seriously lumpy 0 0%
Won't idle 0 0%
Voters: 13. You may not vote on this poll

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Old 06-13-2007, 03:06 PM   #1
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Default RX-7 Injector idle quality?

What is the idle quality like with your RX7 injectors?

A description of which ECU and which injectors would be good too!
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Old 06-13-2007, 03:12 PM   #2
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Link ECU, high impedance 460's that were flow tested.

After ******* about with the link Injector offset, master fuel and zf100 I can get a pretty decent idle that is a little lumpy. I do have to run things pretty rich to get it smooth.
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Old 06-13-2007, 03:16 PM   #3
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460s, baby smooth @ 15:0-14.5:1 with MS.
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Old 06-13-2007, 03:17 PM   #4
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Pretty decent with the high z 550s idling rich. Not as good as my RC 440s. But good enough.
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Old 06-13-2007, 03:29 PM   #5
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High ohm 460's on TEC3 wired full sequential. Idles great 14.7-15.0.
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Old 06-13-2007, 07:25 PM   #6
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I think my aic settings need to be tweaked abit. MS and high impedance 460's, hopefully the cleaned and flowed 550's will do better.
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Old 06-14-2007, 07:01 AM   #7
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for the 6 yrs up until this morning, idled pretty good - rx7 550cc hi-z, link, 800rpm idle and ~15:1 AFR (or leaner, if you wanted) ...

both cold starts today tho... runs off the peg rich until warmed up, had to reduce master fuel from 87 to 77?! Runs fine after that (after MF set back to 87)... dunno WTF is up with that !!
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Old 06-14-2007, 09:54 AM   #8
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does LINK handle cold starts? there should be cold-start enrichment values so you run about 12:1 or so untill the engine is closer to 70°C
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Old 06-14-2007, 10:56 AM   #9
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On the turbo car I had:

Mk1 LINK
RX7 S5 440's that were cleaned and tested to more than 440 around 450cc's
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Old 06-14-2007, 03:38 PM   #10
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Quote:
Originally Posted by jif View Post
for the 6 yrs up until this morning, idled pretty good - rx7 550cc hi-z, link, 800rpm idle and ~15:1 AFR (or leaner, if you wanted) ...

both cold starts today tho... runs off the peg rich until warmed up, had to reduce master fuel from 87 to 77?! Runs fine after that (after MF set back to 87)... dunno WTF is up with that !!
Bad AIT or coolant sensor?
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Old 06-14-2007, 11:54 PM   #11
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Default sllliightly low battery...

Quote:
Originally Posted by Jefe View Post
Bad AIT or coolant sensor?
hmm... charging the battery overnight fixed it (getting into winter down here) ... go figure

Wild *** Guess #1 ... inj voltage correction is way to aggressive...

anyway, all good now
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