maf conversion
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Joined: Sep 2008
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I have an afe box sitting around so I will make my own intake for it and make a new scoop for between the grill. I don't like how close the maf would sit the the box on the factory intake and want it a little farther down the line so there is no turbulance. Would this solve the problem your talking about?
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Senior User
Joined: Oct 2012
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Reducing the turbulence the sensor gets will always benefit, the sensor likes laminar air flow. But I don't think it would help the compensation issue with the tube. The sampling tube that will go around the sensor does a good guess of amount of air that needs to pass over the sensor so there will always be some variance with a system that is like a band aid. I am not really sure how close they are since I didn't have much luck with the sampling tube. Don't get me wrong, they work but after what I have learned over the last couple of years, I'd be willing to bet you'd get better performance with a tune vs. saving the money on a sampling tube.
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I got a tune - someone used a data logger (Tweecer-RT)I attached and tuned the computer & injector slopes which is similar to tuning a carbed vehicle. It's the best reading you can supply to the computer which results in better performance.
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Joined: Jun 2006
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From: Ottawa, Ontario
Gotta agree with that 100%. But.. it won't be necessary until you get the engine built up a fair bit.. like beyond the limits of the stock 19lb injectors. I haven't had my Tweecer on my truck since I got all the bugs ironed out partially because it's not necessary, its runs very well with a smooth idle and strong power with the stock Mustang EEC and matching MAF meter.. which is key of course, the computer is getting accurate info so it can accurately control the motor. I know if I swapped on the Cobra MAF meter I have I'd need to use the tuner, I used that meter before with the 5.8 and it didn't like it at all until it was tuned, but after that it ran like stock.
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Final update. I got her running like a swiss watch tonight. Re-done some old wiring in various parts (lots of open bad wires and bad grounds) and re-set the timing to 10 deg. I can't believe how smooth it is now with absolutely zero hesitation,stubles, or shaking. Going to order the maf conversion hopefully next week.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
The computer hold the calibration info for the MAF meter so it's always best to use the meter that the computer is programmed for. Stock Mustang MAF meters are often found on Ebay and local used marketplaces, this is one of the first things ditched when guys start hotrodding their stangs. I wouldn't put much faith in a conversion kit that didn't include the correct MAF meter, I guess if the kit is reasonably priced it's OK but if not just buy or make a conversion wiring harness and buy a Mustang EEC and MAF meter seperately.
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