intermittent ignition cut at 6k...
08-07-2014, 06:57 PM
#1
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intermittent ignition cut at 6k...
I was at the dyno last night and it cannot rev past 6k.
I tried putting a 15000uF capacitor between positive and ground of the Toyota COPS. I am going to try new coils, but any pointers would be appreciated.
It does well up to 6k, but after, it sounds like it's encountering a sporadic ignition cut.
BK7RE gapped to 0.025"
Toyota COPS
Batch Fire
ID1000
Stock NA8 FPR
Walbro 190HP
I tried putting a 15000uF capacitor between positive and ground of the Toyota COPS. I am going to try new coils, but any pointers would be appreciated.
It does well up to 6k, but after, it sounds like it's encountering a sporadic ignition cut.
BK7RE gapped to 0.025"
Toyota COPS
Batch Fire
ID1000
Stock NA8 FPR
Walbro 190HP
Last edited by psyber_0ptix; 08-08-2014 at 07:16 PM.
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08-07-2014, 07:47 PM
#3
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I'm an idiot. Can we delete this thread?
I think we were all tired, it was 2am when we started at 4am we scratched our heads and was probably fatigued from fumes.
I think we were all tired, it was 2am when we started at 4am we scratched our heads and was probably fatigued from fumes.
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08-08-2014, 06:50 PM
#7
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Ok. I got the cap in, reset the rev limit values and while it does rev, it goes putt putt putt a little after 6k.
Is this why volts run two capacitors?
I swapped out the coils for another set of 4, same symptoms.
Is this why volts run two capacitors?
I swapped out the coils for another set of 4, same symptoms.
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08-09-2014, 07:23 AM
#8
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I am having about the same issue. Using FAB9 COPs with a MS3/MSx under no load (just in neutral) it will run to the rev limit of 7500 with no issue. If I put a load on it (accelerating) it acts as if it has no spark or fuel randomly above 6k.
I have been through the most of the parts including new fuel pump, filter and regulator. My settings have been checked and rechecked. I am so frustrated that I sent the MS off to Peter to have it double checked and have rewired the entire engine. I will have the MS back on Monday so I should be able to pipe in after that.
I was getting great signal from both the cam and crank and the PW was correct and stable as well.
I wish that I could be of more help but am subscribing so maybe we can get this figured out.
I have been through the most of the parts including new fuel pump, filter and regulator. My settings have been checked and rechecked. I am so frustrated that I sent the MS off to Peter to have it double checked and have rewired the entire engine. I will have the MS back on Monday so I should be able to pipe in after that.
I was getting great signal from both the cam and crank and the PW was correct and stable as well.
I wish that I could be of more help but am subscribing so maybe we can get this figured out.
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08-09-2014, 11:57 AM
#9
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I'm only using a single trigger wheel to run batch. I tried gapping the sensor to the teeth to about 1 credit card thickness and it runs like junk. Pulled it away and it would hold idle again. I may have to take a composite log to see if it's dropping any signal above 6k.
If so, I think I'll try correctly gapping the sensor then adjusting the VR pots
If so, I think I'll try correctly gapping the sensor then adjusting the VR pots
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08-10-2014, 07:37 PM
#11
I am having about the same issue. Using FAB9 COPs with a MS3/MSx under no load (just in neutral) it will run to the rev limit of 7500 with no issue. If I put a load on it (accelerating) it acts as if it has no spark or fuel randomly above 6k.
I have been through the most of the parts including new fuel pump, filter and regulator. My settings have been checked and rechecked. I am so frustrated that I sent the MS off to Peter to have it double checked and have rewired the entire engine. I will have the MS back on Monday so I should be able to pipe in after that.
I was getting great signal from both the cam and crank and the PW was correct and stable as well.
I wish that I could be of more help but am subscribing so maybe we can get this figured out.
I have been through the most of the parts including new fuel pump, filter and regulator. My settings have been checked and rechecked. I am so frustrated that I sent the MS off to Peter to have it double checked and have rewired the entire engine. I will have the MS back on Monday so I should be able to pipe in after that.
I was getting great signal from both the cam and crank and the PW was correct and stable as well.
I wish that I could be of more help but am subscribing so maybe we can get this figured out.
He has a new module to fix the issue with MS.
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