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The "hows your idle" thread.

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Old 08-13-04, 12:11 AM
  #26  
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idle speed: 750
idle afr: 14.5
idle vacuum: 14.5 inhg
porting: stock
turbo type: twins
ECU: PFC
Old 08-13-04, 12:14 AM
  #27  
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idle speed: 900rpms
idle afr: rich
idle vacuum: 14inhg
porting: stock
intercooler: stock
turbo type: stock twins
Ecu: Pfc
Old 08-13-04, 01:13 PM
  #28  
Ee / Cpe

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hmm guess our cars idle alot richer than i thought... no wonder we all fail emissions.
Old 08-13-04, 01:17 PM
  #29  
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idle speed: 600-800rpm
idle afr: NA
porting: extend
intercooler: 2 row FMIC
turbo type: stock twins
ECU: PFC
Old 08-13-04, 03:00 PM
  #30  
Is that thing a Miata?

 
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idle speed: ~1000rpms
idle afr: Rich
idle vacuum: 18inhg
porting: Street
intercooler: Greddy 2 row
turbo type: Single
ECU: Apexi Power FC
Old 08-13-04, 03:03 PM
  #31  
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Idle speed: 600-800
Idle afr: don't know
Idle vacuum: 18-19inhg (I've seen 20 on a cool morning)
Intercooler:Stock
Porting: stock
Turbos: stock
Old 08-13-04, 03:11 PM
  #32  
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I have notice too that I wil get a higher vacuum reading (like 010mmHG, meaning more negative) when the water temp is in the 84-90C range. But when it is up in the 99 c range it is a touch lower.

Does anyone else see this?

(PFC) Another thing I notice is when the car switches to the E/L idle, the timing changes (I have idle set at the same RPM for E/L as no load) and I am able to see more vacuum.

Does anybody notce this?

Cold mornig with idle being the same, vacuum is much higher too.

Just some of my observations.
Old 08-13-04, 06:41 PM
  #33  
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Originally Posted by x605p747R1
I have notice too that I wil get a higher vacuum reading (like 010mmHG, meaning more negative) when the water temp is in the 84-90C range. But when it is up in the 99 c range it is a touch lower.

Does anyone else see this?

(PFC) Another thing I notice is when the car switches to the E/L idle, the timing changes (I have idle set at the same RPM for E/L as no load) and I am able to see more vacuum.

Does anybody notce this?

Cold mornig with idle being the same, vacuum is much higher too.

Just some of my observations.
I'm still waiting for my water temp gauge to get here and I don't have a PFC, but I'll check this when I get it and see if that's the case.
Old 08-13-04, 06:45 PM
  #34  
Racing is life!

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About 800-900 w/o accessories. Had to turn it up some. Worn side seals.
Vacume - 16
Stock except for downpipe!!
Old 08-14-04, 03:11 AM
  #35  
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idle speed: 750-800 rpm
idle afr: rich
idle vacuum: 17+ inhg (-44cmhg)
porting: stock
intercooler: stock
turbo type: stock twin
Old 09-20-04, 09:38 AM
  #36  
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Originally Posted by f2racer
My car has 2 distinct idles. I'm doing a full vacuum hose job to try to fix it (I'm guessing it's a vacuum leak somewhere.

idle speed: 1100 rpm
Idle afr: unknown
Idle vacuum: 17+ in/hg
Intercooler: stock
porting: stock
Turbos: stock twins
ecu: stock '93

idle speed: <500 rpm
Idle afr: unknown
Idle vacuum: 12 in/hg
Intercooler: stock
porting: stock
Turbos: stock twins
ecu: stock '93

One thing that I've noticed is that my idle vacuum is directly correlated with the idle speed. At the 1100 rpm, the vacuum bobs between 17-19 in/hg vacuum. When the idle drops, the vacuum does too. Around 16 in/hg at 1000 rpm, 15 in/hg around 750 rpm, and finally 12 in/hg when the idle settles sub 500 rpm. BTW, the idle doesn't hunt at all, there's a definite high and a definite low, which randomly seems to occur. BTW, this is on a car with 104+k miles on it's original engine.
The vacuum hose job (and replacing all the check valves) cured the 2 speed idle issue that I used to have. Now the I'm getting:

idle speed: 650 rpm
Idle afr: between 14-13 on my Westach A/F ratio gauge (so pretty rich)
Idle vacuum: 16 in/hg
Intercooler: stock
porting: stock
Turbos: stock twins
ecu: stock '93
Old 09-20-04, 10:11 AM
  #37  
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Idle speed: 750
Idle afr: ??
Idle vacuum: 18-19inhg (I've seen 20 sometimes)
Intercooler:stock with pettit smooth hoses
Porting: stock
Turbos: stock
ECU: M2

also have adam-c intake box mod
Old 09-20-04, 10:23 AM
  #38  
They took our jobs!

 
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500...900...500...900

drives me crazy
Old 09-20-04, 11:59 AM
  #39  
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idle speed: 800rpms
idle afr: 11.4-1
idle vacuum: 12inhg
porting: stock
intercooler: PFS smic
turbo type: twin seq
ECU: AEM
Old 09-20-04, 12:17 PM
  #40  
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idle speed: 1100rpm
idle afr: not tuned
idle vacuum: 15-17inhg
porting: large street port
intercooler: APEXI fmic
turbo type: stock twin non seq
ECU: PowerFC
Old 09-20-04, 12:50 PM
  #41  
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idle: 800-1000 , not steady at all, freaks me out - since I remove the air pump and did the hose job!
idle afr: n/a
idle vacuum: 14-16 inhg
porting: stock
intercooler: FM hybrid - 3 row
turbo: stock non-seq. twins
ECU: Power FC
Old 09-22-04, 01:42 AM
  #42  
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idle: 750
idle afr: no idea
idle vacuum: 15 inhg
port: street
intercooler: stock
turbo: stock seq.
ECU: stock with APEXi S-AFC
Old 09-22-04, 02:05 AM
  #43  
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idle speed: 900rpms
idle afr: dont know
idle vacuum: 19inhg
porting: stock
intercooler: v-mount
turbo type: twins
ecu: power FC
Old 10-21-04, 08:02 PM
  #44  
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idle speed: 725-750rpms
idle afr: dont know
idle vacuum: 15-16inhg
porting: stock
intercooler: stock
turbo type: twins
ecu: stock
Old 10-21-04, 10:37 PM
  #45  
development

 
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idle speed: 820-880rpms
idle afr: dont know
idle vacuum: 15inhg
porting: solid streetport (intake & exhaust)
intercooler: custom varient of PFS
turbo type: .70 A/R compressor, 4in" inlet with 60-1 wheel, p-trim 1.00 A/R turbine
ecu: Haltech E6X
Old 10-21-04, 11:37 PM
  #46  
Living on Borrowed Time

 
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idle speed: btwn 800 and 1100rpm
idle afr: unk
idle vacuum: less than 15inhg (WTF???)
porting: mild street, wastegate
intercooler: stock
turbo: stock
ECU: G-force
Old 10-25-04, 10:56 AM
  #47  
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Nm

Last edited by Neonspd2000; 10-25-04 at 10:59 AM. Reason: I was wrong
Old 03-22-07, 12:58 AM
  #48  
Red Neck Tony Stark - C2

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Hollythreadresurrection Batman..... < Allways wanted to say that.

This was a great thread, we need to bring it back and keep it going.

idle speed: 1500-1600
idle afr: 11.8:1
idle vacuum: 9-10 inhg
porting: Half-Bridge
intercooler: Huge FMIC
turbo: T88
ECU: Apexi PowerFC
Old 03-22-07, 11:35 AM
  #49  
STUCK. I got SNOWNED!!!!!

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idle speed: 750rpms
idle afr: ??? unknown, no wb yet
idle vacuum: 15inhg
porting: stock
intercooler: stock
turbo type: stock
ECU: stock
Old 03-23-07, 12:31 PM
  #50  
Form follows function

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It would be helpful if posters would include their PRIMARY injector info. here too. (i.e., 550's, 850's, etc..)


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