Just wondering what the rest of you guys are seeing in terms of vacuum at idle with Crower stage 2 cams. I'm seeing 100-120mmHG on the AFC.

-"Easy Mac"
05 Mazda RX-8 (RR8 #88)
99 Eclipse RS 398whp & 372lb-ft

I hope that's not what you're seeing.. that's LOW.. you were idling at 500ish mmHG before the cams. That ain't right. Check your settings, specifically in&out.

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unfortunately that is exactly what I'm seeing. It's also why I'm figuring I bog down so back at low RPMs. No vacuum = crap load of fuel. It looks more normal when I start moving ... it's just acts funny at idle.

-"Easy Mac"
05 Mazda RX-8 (RR8 #88)
99 Eclipse RS 398whp & 372lb-ft

Sounds about right to me idle was goofy without some tuning. But I don't remember exact numbers and I can't get those for you because with the portin it will change it all.



15.9 @ 86.7mph

Injen CAI, 55mm TB, P&P Intake, Crower Cams, Hooker Header, ERT/Catco Cat, GS-T Muffler, AFX UDP, Crane Ign Amp, S-AFC

Anyone else? Its more strange with my car because when I initially start it I will have about 190-210 mmHg at idle but once I drive it around it will be down 110-130 mmHg at idle. Once I start press the gas a little it goes down to -40 or -50 mmHg and bogs like crazy then gets better. On a WOT run it's always about -40 mmHg.

-"Easy Mac"
05 Mazda RX-8 (RR8 #88)
99 Eclipse RS 398whp & 372lb-ft

on paper, at WOT, the pressure setting should be 0 mmHg. i use 5 in and 5 out with my AFC, seems to work the best. right now my idle is around -16 to -17 inches of mercury on the boost gauge, and my AFC claims -460 mmHg, and my electronic boost controller claims -420 to -440. hmmm...

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Sounds pretty close with stock cams. I got around -500mmHg with stock cams. With the Crower stage 2s though it's a completely different story.

-"Easy Mac"
05 Mazda RX-8 (RR8 #88)
99 Eclipse RS 398whp & 372lb-ft

i have the crane nitrous grind cams, which are are pretty close in spec to the crower 2's and i see 16-18 inches at idle...seems like something is deff wrong with yours..

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