Relocation of MAF
07-12-2006, 10:13 PM
#11
Originally Posted by Whippled 496
I want to ride in a truck that uses a radiator with a 4" hose. 
Thats a big *** hose.
Thats a big *** hose.
Originally Posted by Whippled 496
You could always use a DWV (drain waste vent) coupling from HD or Lowes. Should be fine for the intake side.
07-13-2006, 08:30 PM
#12
Test: mechanical failure
Sorry, fellers, I have some more reconfiguring to do. I tried using the stock airbox-to-MAF rubber piece, I guess just to confirm that I am a dumbass. It doesn't really put any clamping pressure on the MAF using my aluminum adapter. Maybe the plastic of the airbox gives enough to clamp harder on the MAF, but probably not because my setup was OK up to 3 psi. It was kind of funny, actually. It reminded me of the relief valve on a steam boiler opening. I should have been in a parade. mmmmmrrrRRRRRRPSSSSSSSSSSSSSSSTRRRRrrrrrrrrrrr. And then when it came off completely, I shut the key off in a split second. It sounded like a tornado siren winding down. Everybody should yank the pressure tubing off of their twin screw just to hear it.
I have to find a 4" coupler locally like our 3" silicone ones, but I'd be happy with radiator hose-type material. I have to remake the MAF inlet adapter to the same OD as the MAF, instead of the same as the airbox.
I have to find a 4" coupler locally like our 3" silicone ones, but I'd be happy with radiator hose-type material. I have to remake the MAF inlet adapter to the same OD as the MAF, instead of the same as the airbox.
07-14-2006, 11:10 PM
#13
Runs like crap.
I got a 4" silicone coupler at the Truck parts place. I saw boost go up one time, one psi, to 8. It never did it again. Strange. The truck runs like crap, I think it might be lean. 65.24 lbs./min. MAF, 103% injector duty cycle, O2 mV 955, all peak numbers. Does higher mV mean leaner? I sent the logs to Mr. Nelson, I'll let you know what he tells me.
07-15-2006, 03:38 PM
#15
Originally Posted by Mikegyver
I got a 4" silicone coupler at the Truck parts place. I saw boost go up one time, one psi, to 8. It never did it again. Strange. The truck runs like crap, I think it might be lean. 65.24 lbs./min. MAF, 103% injector duty cycle, O2 mV 955, all peak numbers. Does higher mV mean leaner? I sent the logs to Mr. Nelson, I'll let you know what he tells me.
Think its the MAF? Put it back to stock location and see if it changes.
07-15-2006, 10:16 PM
#17
It did it again tonight. All of a sudden, at like 75 or 80, the boost shot up to 8 1/2 psi from 7. Runs good at that boost. It also is running a little better at the end of tonight's trip than at the start, 85 miles round trip. If nothing else, this probably, but not scientifically, proves that the MAF is a restriction. Everything downstream of the supercharger is tight, I guess I'll try wiring the bypass closed temporarily to test it tomorrow. ?????!
07-18-2006, 08:35 PM
#18
It was way too rich, running better, needs further adjustment.
Allen Nelson, at http://www.nelsonperformance.com is really bringing this thing to life.
Allen Nelson, at http://www.nelsonperformance.com is really bringing this thing to life.
07-21-2006, 11:13 AM
#19
Staging Lane
Join Date: Jun 2006
Location: Tri Valley area, NorCal
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Hmmm, I wonder........If the MAF in the stock position measures "uncharged" air flow to tell the engine what fuel to pump, wouldn't it seem logical that more air (charged air) through the MAF would tell the engine to pump more fuel? I'm not sure that would work to well in the long run. IMO.