hey guys. I have tweecer, and i have been told that my flow readings from the MAF are low for my combo. You can see my combo in my sig, and at WOT at 6000 rpm, im pulling in about 1000 kg/hr of air through the MAF. Ive been told that similar combinations pull about 1400-1450 WOT at 6k. What the heck could be holding back 450 kg/hr of air flow? thats a LOT of air and fuel my car is missing out on...
ive been told that it could be the crappy typhoon intake, the spark plugs being gapped wrong, the timing not being set to 10* at idle, maybe the velocity of the air flow because the MAF is 77mm, the intake can handle a 70mm TB, and i opened it by hand to accept a 75mm TB; or that the Catalytic Converters could be clogged. it could also be that i have 1.7 rockers, and the cam lift is not like .576/.598, and the AFR heads come with .550" max springs...
i was told that the spark gap could affect "spark blow out," and if the gap is too big, then the compression could cause the spark to blow out or something, thus hurting the power stroke, which hurts air flow. thats about what ive been told.
i also have a stall issue sometimes when im almost at a stop, usually moving around parking lots. the car stalls, not me, im not a moron lol.
any other opinions, or anyone agree with any of these?
__________________
342, AFR185s, TKO500, TFS2 cam, 30# inj, 75mm TB, 77mm Pro-M, twEECer R/T, Typhoon Upper, tmoss ported lower, 3/8" Spacer, Magnaflow Exhaust w/ Bassani Catted-X and BBK UnEq Shorties, 3.73's, MSD 6AL, FRPP 9mm wires, 200A alt, U/L CA's, Eibach/UPR springs, Koni Yellow Adj Shocks, Bilstien Struts, ZOOM clutch, 94 cobra cluster, 94 export tail lights, 5 gauges, and more (too much to list)
396.7rwhp/450rwtq
http://www.cardomain.com/ride/546774
Eat Rice, Dont Drive It
I'd advance the timing a few degrees. Check the vacuum with a gauge, you're looking for maybe 15 - 17 pounds. Low vacuum is a sign of clogged cats, as well as an unwillingness to rev.
Pull the plugs and check for a gap of around .50.
Hopefully Tmoss will offer some insight on your intake.
I still stall mine sometimes, damned 2.73s!
__________________
1992 Deep Emerald Green Mustang GT Hatch, 5 speed, 2.73s, Mac fenderwell cold air intake, '93 Cobra MAF, Mac 70mm throttle body & spacer, Explorer intakes, Mac unequal headers & offroad pipe, Magnaflow catback, Walbro 110lph fuel pump, Jet adjustable FPR, MSD Blaster coil, Accel 8mm wires, FRPP aluminum quadrant, UPR firewall adjuster, stock cable, Granatelli upper control arms.
Waiting to go on: Granatelli lower control arms, and GT40 Iron heads!
vac readings depending on your cam. the bigger, and more valve overlap, the less vacuum you will read.
steady vacuum is good. rev the engine it should immediately go to zero and when you let off it should snap back to about 25 or so (instantaneous)then even out.
if you rev it and it slowly climbs back to steady vac, thats the sign of a restricted exhaust.
if you have erratic vacuum readings, you possibly have a burned valve.
with a properly working ignition, usually the spark wont blow out unless you are running high boost with above 8.5:1 compression. if the ignition is stock, i would use the stock gap spec.
__________________
Sr. Master Ford nerd.
saludos caballeros del ovalo azul
342 Air Flow Issues 
