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Location:
Canberra
Registered:
November 2004
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AFM Limits
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Mon, 16 May 2005 02:47
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Hey guys,
I've just fitted a Blitz SBC i-D 3 to my Chaser (the actuator line was a bitch to get to, but thats another story...) and couldnt resist the urge to tweak with the boost. I've pushed her up to 1 bar and the mid-range pull is good enough for me to be grinning like an idiot after a quick thrap.
The question i have (since i've taken out the PFC until i get her tuned) is that do the 1jz's have an air-flow cut? It seemed that in higher gears (3rd and 4th) that it started to break up almost like it was missfiring. I haven't gapped the plugs to anything different to the factory, so maybe it is misfiring, but i was wondering what the AFM's are good up until on the 1jz's? Oh and BTW it was a very cool night last night when i was testing, around 5 degrees or so.
Thanks.
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Location:
Canberra
Registered:
November 2004
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Re: AFM Limits
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Mon, 16 May 2005 08:07
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Anyone? *bump*
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Location:
Brisbane
Registered:
February 2003
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Re: AFM Limits
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Mon, 16 May 2005 08:13
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sounds like ignition breakdown to me mate.
Fuel/Boost cuts are sudden and you will lose all power, not just misfire.
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: AFM Limits
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Mon, 16 May 2005 08:15
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I would think that the AFM would be the one of the last things you would max out.
Your fuel maps probably don't go past 1 bar on the standard ECU... if that is the case then the ECU should theoretically fuel cut.
You really need to have an ecu with maps to cope with whatever boost you are going to chuck at your engine, or at least monitor the engine on a dyno or with an analyser whilst you up the boost.
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Location:
Canberra
Registered:
November 2004
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Re: AFM Limits
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Tue, 17 May 2005 00:32
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Thanks guys, i think i'll just have to throw it on the dyno and see what exactly is going on. I just have to resist thrapping it until after my FMIC arrives and gets fitted... will be difficult! 
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