1987 Mazda RX7 Idle tuning

1987 MAZDA RX7
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RWOLFERA
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Engine Performance problem
1987 Mazda RX7 Two Wheel Drive Manual 20000 miles
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I own an '87 Mazda RX-7, with 124,200 miles on the body and 20,000 on the engine, since the overhaul I performed. I recently had the A/C replaced with a stock Mazda unit and it was recharged and such. It works great and I can't complain about the A/C's performance, but it has now lowered my idle by roughly 250rpm and it noticeably affects performance depending on whether it's on or not. Is there a way to tune the idle to be higher? I want to raise my default idle from its current 1000rpm to 1125rpm or 1250rpm so that I don't stall the car out when the A/C is running.
Aug 9, 2008 at 1:45 PM
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A240SX
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The idle for your car should be around 750 RPM. Why would you want it so high?
Aug 11, 2008 at 9:02 AM
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RWOLFERA
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It has to do with the new gear ratio i have. I switched to a 4.3 for better acceleration and it has to be slightly higher to jump off idle a little better. I have tuned the idle to a healthy 850 and can run it fine, it's just a bit sluggish considering the new installation.
Aug 14, 2008 at 1:28 PM
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