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Dies on throttle.

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  • Dies on throttle.

    Been working on my Chevyll. Not supposed to be out there at all after surgery, but I’m going nuts in the house. Back to the subject. Got it running and not bad, but just as soon as I touch the throttle it dies. I’ve adjusted all the modifiers and still can’t get it right. Engine is a 401 SBC with a 510 Whipple. Making only 9 psi of boost. 60-2 trigger, MSD cam sync 85141.

  • #2
    First, ensure all this is right: (Initial Checks & Adjustments - Read Steps # 1-# 6!). Then the Base Fuel/Timing Tables need to be tuned. ​
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385"/6.3L SBF, Dart SHP 8.2 block, forged steel crankshaft & H-beam rods, forged pistons, Trick Flow Twisted Wedge 11R 205 CNC Comp Ported heads, 12:1 compression ratio, 232-244 duration/.623" lift/114 LSA camshaft, TFS R-Series FTI Comp Ported intake, BBK 80mm throttle body, Holley Dominator MPFI & DIS, Holley 36-1 crank trigger, MSD 1x cam sync, PA PMGR starter, PA 200A 3G alternator, Optima 34/78 Red battery, 100HP progressive dry direct-port NOS, R134a A/C, Spal Dual 12" HP 3168 CFM fans, Frostbite 3-core aluminum radiator, Pypes dual 2.5" exhaust, off-road X-pipe, shorty headers, Earl's -6AN fuel system plumbing, Walbro 255 LPH in-tank pump & Pro-M -6AN hanger, S&W subframe connectors, BMR upper & lower torque box reinforcements, LenTech Strip Terminator wide-ratio AOD, 3000 RPM C6 converter, B&M Hammer shifter, Stifflers transmission crossmember & driveshaft safety loop, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.


    • #3
      I’ve been all over the board with this and can’t come up with any numbers this thing likes. Get it to run smoothly, but as soon as I try to move on and push the throttle down a little, it dies. Just can’t get past this point. Tried adding fuel didn’t help, tried taking fuel away, same thing. I’ll hit again Monday see what happens.


      • #4
        Post the datalog and your GCF tune.