The "hows your idle" thread.
08-13-04 | 04:11 PM
#32
Hooray For Boobies!!!
Joined: Sep 2002
Posts: 3,570
Likes: 1
From: Washington
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.
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.
08-13-04 | 07:41 PM
#33
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.
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.
09-20-04 | 10:38 AM
#36
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.
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.
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
09-20-04 | 11:11 AM
#37
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
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
09-20-04 | 01:50 PM
#41
0-rotor-0-turbo-0-fd
Joined: Sep 2002
Posts: 1,640
Likes: 0
From: NYC
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
- 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
10-21-04 | 11:37 PM
#45
development
Joined: Aug 2002
Posts: 5,714
Likes: 6
From: Lafayette, LA
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
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
03-22-07 | 01:58 AM
#48
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
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
