Sooooo close, but I need YOUR help! Please?
10-09-2011, 05:44 PM
#1
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Sooooo close, but I need YOUR help! Please?
Specs: 90 chassis, ms1 (using megatune hires 10g), 94 bottom end, 99 head and tb, 1000cc id's, exhaustake, aeromotive fpr@50psi (currently not rising rate)
Got her started last weekend and she went to 3000rpm's immediately, unplugged the iacv (which wasn't being used on the previous setup which was stock 94 block with 90tb and bosch vtps) and she calmed down but I didn't let her run because she had not been broken in yet.
Today I went out and bumped the injector dead time down to 1.1ms and started her up. She ran for ~2 minutes then died. The 2 minutes was all surging/seeking. After she quit I checked for a vacuum leak (didn't find one) and couldn't get her to repeat the 2 terrible minutes of running.
Things I changed:
-bumped the id time down to 1.0
-took it out of mapdot and put it to tpsdot
-smoothed out the 1000rpm section of the fuel table
-cried as my excitement boner deflated
Lastly the only things wrong with the car is the tps reads all funny and iacv has not been set up/tuned (?), so I was in mapdot (which I changed after she stopped working) with it and the iacv unplugged.
The plugs are carbon covered and smell strongly of fuel.
The logs are in order and the map is how I ended the day. Also I was under the disillusion today was the 8th
If anybody could give some advice to get this show on the road I'd grrrreatly appreciate it.
Got her started last weekend and she went to 3000rpm's immediately, unplugged the iacv (which wasn't being used on the previous setup which was stock 94 block with 90tb and bosch vtps) and she calmed down but I didn't let her run because she had not been broken in yet.
Today I went out and bumped the injector dead time down to 1.1ms and started her up. She ran for ~2 minutes then died. The 2 minutes was all surging/seeking. After she quit I checked for a vacuum leak (didn't find one) and couldn't get her to repeat the 2 terrible minutes of running.
Things I changed:
-bumped the id time down to 1.0
-took it out of mapdot and put it to tpsdot
-smoothed out the 1000rpm section of the fuel table
-cried as my excitement boner deflated
Lastly the only things wrong with the car is the tps reads all funny and iacv has not been set up/tuned (?), so I was in mapdot (which I changed after she stopped working) with it and the iacv unplugged.
The plugs are carbon covered and smell strongly of fuel.
The logs are in order and the map is how I ended the day. Also I was under the disillusion today was the 8th
If anybody could give some advice to get this show on the road I'd grrrreatly appreciate it.
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10-10-2011, 10:32 AM
#2
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Double checked my injector dead time and decided it should be 1.1ms because I am at 50psi (1ms would be for 42psi) so I will be leaving it there.
I brought req fuel down to 2.9 (from 3.2) and was still seeing unburnt fuel on the plugs. I then brought ase down to see if that would change things any and it didn't. I'm going to try to bump the cranking pw's down till it won't start because maybe I'm flooding it when I crank? Anyway more logs in order of attempts.
I brought req fuel down to 2.9 (from 3.2) and was still seeing unburnt fuel on the plugs. I then brought ase down to see if that would change things any and it didn't. I'm going to try to bump the cranking pw's down till it won't start because maybe I'm flooding it when I crank? Anyway more logs in order of attempts.
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10-10-2011, 11:52 AM
#3
When you go it started, what were the afrs you were seeing? Did you get the chance to set your base timing when it was started?
The order i have done things when doing a first start:
1. Get timing light all set up
2. Start Car (you might have to fiddle with those fuel settings again to get tit to start)
3. Get the idle afrs to around 13-14
4. SET BASE TIMIMG. Lock the timing to 10, then use the trigger angle to make sure your notch in the crank pulley is on 10 with the timing light.
The car will most likely run like crap without timing set.
The order i have done things when doing a first start:
1. Get timing light all set up
2. Start Car (you might have to fiddle with those fuel settings again to get tit to start)
3. Get the idle afrs to around 13-14
4. SET BASE TIMIMG. Lock the timing to 10, then use the trigger angle to make sure your notch in the crank pulley is on 10 with the timing light.
The car will most likely run like crap without timing set.
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10-10-2011, 02:20 PM
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When you got it started, what were the afrs you were seeing? Did you get the chance to set your base timing when it was started?
The order i have done things when doing a first start:
1. Get timing light all set up
2. Start Car (you might have to fiddle with those fuel settings again to get tit to start)
3. Get the idle afrs to around 13-14
4. SET BASE TIMIMG. Lock the timing to 10, then use the trigger angle to make sure your notch in the crank pulley is on 10 with the timing light.
The car will most likely run like crap without timing set.
The order i have done things when doing a first start:
1. Get timing light all set up
2. Start Car (you might have to fiddle with those fuel settings again to get tit to start)
3. Get the idle afrs to around 13-14
4. SET BASE TIMIMG. Lock the timing to 10, then use the trigger angle to make sure your notch in the crank pulley is on 10 with the timing light.
The car will most likely run like crap without timing set.
According to the log the aft's were between 10.5:1 (when the idle dipped low around 800rpm's) and 21.6:1 (when the idle went high around 2500rpm's).
Definitely man! The help is most welcome so whichever day works for you I am game.
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10-10-2011, 03:02 PM
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Yeah, it is a big tap and it comes out pretty lumpy but tastes fantastic!
So if I were to hook the iacv back up, and if it runs at 3000rpm's, would setting the timing be ill advised? I feel as if it is not the best idea but I kinda wana do it...
So if I were to hook the iacv back up, and if it runs at 3000rpm's, would setting the timing be ill advised? I feel as if it is not the best idea but I kinda wana do it...
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10-10-2011, 05:10 PM
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It didn't work. Car went to 3500 rpm's and died, all the time lengths are about the same though (about 10 seconds) so maybe something is turning on/off and stopping the combustion cycle...
Also I think I killed the starter...it makes a loud grinding noise after a few revolutions and then the motor spins freely :(
Also I think I killed the starter...it makes a loud grinding noise after a few revolutions and then the motor spins freely :(
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10-10-2011, 07:57 PM
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if it only runs for 10 secs or so and then dies that means your ASE's are the only reason its running. once they shut off it probably goes too lean. I still havent looked at your logs. too lazy to start up my computer.
Replace the starter so we can run wednesday! get a 99-00 one cause its smaller
Replace the starter so we can run wednesday! get a 99-00 one cause its smaller
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10-12-2011, 09:45 PM
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It runs.. but only on ASE. We make the ASE's a few minutes long to allow us to set the base timing. Timing is now set.
It dies the second ASE turns off. While in ASE it runs pig rich at 9.5:1
ASE is currently at
fixed then decay
Works below 120*F (max i could set it )
3 minutes long (so we could set the timing)
Fixed MAP is at 80 kpa
We obviously need to do some tuning. Id like to get it to atleast run closer to 13.5 -14:1 in ase, and then start making it run out of ASE
I am just so surprised how suddenly it dies. Martin can post the logs, but here is the video.
It dies the second ASE turns off. While in ASE it runs pig rich at 9.5:1
ASE is currently at
fixed then decay
Works below 120*F (max i could set it )
3 minutes long (so we could set the timing)
Fixed MAP is at 80 kpa
We obviously need to do some tuning. Id like to get it to atleast run closer to 13.5 -14:1 in ase, and then start making it run out of ASE
I am just so surprised how suddenly it dies. Martin can post the logs, but here is the video.
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