gt40p

  1. 91mustanglxcoupe

    89 Mustang MS3 gold box tuner studio idle control and injector dead time

    I have a 89 mustang with SBF 302 with GT40P heads and Vortech V1 blower at 10psi and running the ms3 gold box with tuner studio. In the idle control section I'm trying to find out what the valve mode is supposed to be set at inverted or normal for a stock IAC valve. Idle valve type is set at PWM...
  2. T

    GT40P Heads Exhaust

    Quick question because I couldn't find any straightforward answers. I just swapped my heads over to the GT40P's out of a 1997 Explorer. I kept the headers that I had on my Mustang and now, even after flipping my plug wires around, I'm still constantly melting wires 4, 7, and 8 because of the...
  3. Sheep Dowg

    Gt40p Blues Stuck In Da Stable.

    Greeting Stangnet, This is my first thread ever. I feel like I’m posting wrong because there is lots of GT40P info in here. So here goes. My Stalions a 68 Coup, 90EFI, newly machined GT40P Heads, T-5 tranny with newly installed clutch cable. I didn’t do my resurch well enough as I have newly...
  4. PakstinN

    Engine Ported Gt40p's??

    Hey boys, a short while ago I had the misfortune of snapping the crank in my gt40p headed 302 (how/why it snapped I have no idea) so I am currently going through the rebuilding process to get her back on the road..I already have a shortblock all done up and ready to go..HOWEVER, when the crank...
  5. 885.0h

    Engine Timing Issues

    Hello I have an 88 mustang timing is set at 12 btdc was running good now wont start unless distributor is really advanced, pings at 3k rpm and when retarded starts missing at 3k rpm/ sputters Ive replaced: Distributor, Plugs & wires Ignition coil Put a9l ecu in, when I received the car it had...
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