is there an aftermarket AFM for our cars
is there an aftermarket AFM for our cars
08-17-04, 01:00 PM
#3
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actually you do need one, its a HUGE restriction on the intake air, even on the N/A's. unfortunate there are no aftermarket ones that are larger. the best way is to either build yourself a megasquirt or buy a Microtech to remove the AFM completely.
08-17-04, 01:19 PM
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Originally Posted by Agent_D
actually you do need one, its a HUGE restriction on the intake air, even on the N/A's. unfortunate there are no aftermarket ones that are larger. the best way is to either build yourself a megasquirt or buy a Microtech to remove the AFM completely.
08-17-04, 01:23 PM
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What you need to remove the AFM is a standalone EMS like a Wolf, Microtech, Haltech, Motec or any of the others.
The AFM must be used if you still have the stock computer.
The AFM must be used if you still have the stock computer.
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08-17-04, 06:06 PM
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I thought you could convert it over to a GM hotwire MAF if you wanted?
There are some comverters that they sell on ebay, I know they use them for MKIII supra's, but most guys just go with the Lexus AFM.
Someone should look into that
There are some comverters that they sell on ebay, I know they use them for MKIII supra's, but most guys just go with the Lexus AFM.
Someone should look into that
08-17-04, 06:15 PM
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Originally Posted by Cory Simpson
I thought you could convert it over to a GM hotwire MAF if you wanted?
There are some comverters that they sell on ebay, I know they use them for MKIII supra's, but most guys just go with the Lexus AFM.
Someone should look into that
There are some comverters that they sell on ebay, I know they use them for MKIII supra's, but most guys just go with the Lexus AFM.
Someone should look into that
08-17-04, 06:23 PM
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Originally Posted by Agent_D
thats what the megasquirt or SDS standalones are for, stock ignition with stand alone fuel that removes the AFM
so it won't mess with the stock computer? I'm just a little confused with all this computer stuff.
just to clarify 100%, I could run a megasquirt for the fuel, and still use the stock computer for ignition without any other modifications?
08-17-04, 08:07 PM
#15
<shakes head and looks down at floor...>
The stock computer REQUIRES the air flow meter. It is the BASIS of the fuel injection system. The afm reports air intake to the computer, the computer crossreferences that reading (converted to voltage) with a preset map loaded at the factory (non adjustable) along with air temp (and to a small degree) throttle position and injects fuel based upon that. Without the air flow meter, the ecu is ABSOLUTELY BLIND at any point other than idle.
These other aftermarket computers people are talking about COMPLETELY REPLACE the stock ecu and wiring, most come with their own wiring that you cut to length and install new connectors onto new sensors. They are able to operate just about any engine in any vehicle (or not in a vehicle at all) thus the nickname standalone. They come either with no map whatsoever, or a rough base startup map. From there they must be tuned to even be street driveable by a professional, much less have proper power and fuel delivery.
The stock computer REQUIRES the air flow meter. It is the BASIS of the fuel injection system. The afm reports air intake to the computer, the computer crossreferences that reading (converted to voltage) with a preset map loaded at the factory (non adjustable) along with air temp (and to a small degree) throttle position and injects fuel based upon that. Without the air flow meter, the ecu is ABSOLUTELY BLIND at any point other than idle.
These other aftermarket computers people are talking about COMPLETELY REPLACE the stock ecu and wiring, most come with their own wiring that you cut to length and install new connectors onto new sensors. They are able to operate just about any engine in any vehicle (or not in a vehicle at all) thus the nickname standalone. They come either with no map whatsoever, or a rough base startup map. From there they must be tuned to even be street driveable by a professional, much less have proper power and fuel delivery.
08-18-04, 12:59 AM
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sorry, still a little confused. so if I got a megasquirt thats NOT meant to do both, the stock computer wouldn't work for half? not running the fuel part would screw it up?
what do people run for just spark?
sorry for the thread jack.
what do people run for just spark?
sorry for the thread jack.
08-18-04, 01:24 AM
#19
When we say standalone we're not really talking about a megasquirt. That's a halfass standalone...it's actually a fuel computer, not a standalone at all. IN this case, yes, your stock ecu must be retained to run the ignition side, to my knowledge. I actually have very little knowledge about that setup, Ive never even laid eyes on one and don't want to start now. Bottom line, there isn't much use in messing around. Either stay with the stock control system adn run an afc and a set of injectors with it, or go all out and get the full on haltech/mictrotech standalone fuel/ignition computer. There is very little support for anything else.
08-18-04, 10:07 AM
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BTW, finding someone to prof. tune a megasquit will be tough. Even in our city, the local Dynoshop is only certified to tune haltechs. We'd have to tow our vehicle about 350 miles to get a microtech tuned. You better check around to see what dynoshops are available to do what tuning. You might be interested in their prices as well, because it may not be to cheap.
08-18-04, 10:48 AM
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Originally Posted by Agent_D
actually you do need one, its a HUGE restriction on the intake air, even on the N/A's. unfortunate there are no aftermarket ones that are larger. the best way is to either build yourself a megasquirt or buy a Microtech to remove the AFM completely.
08-18-04, 02:30 PM
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If you want to do a nice conversion to get rid of the AFM, you can get an HKS VPC! VERRRRYYYYY Nice IMO.... It converts it to a speed pressor sensor, or something like that (maybe a MAP sensor.) But the problem is finding one, and then tuning it.....