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Thread: HydraMat for 1968 Chevelle

  1. #1

    Default HydraMat for 1968 Chevelle

    I have a Tanks Inc fuel tank with a Walbro 400 in-tank pump and unless the tank is 100 % fuel, it loses fuel pressure on launch for a split second and falls on its face! Does anyone know what size HydraMat would solve my problem for a 1968 Chevelle?

  2. #2

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    This one is plug & play with the W400 pump: https://www.holley.com/products/fuel...s/parts/16-111. My buddy just installed one in his stock '66 Fairlane tank, and it works great. Andrew

  3. #3

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    Thanks Andrew! I ordered one from Summit yesterday. I'll install it in the next few days.

  4. #4

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    FYI: To anyone looking to use the Holley HydraMat in a Tanks Inc Chevelle EFI tank, it will NOT work! There's a wall around the pump area inside the tank.

  5. #5

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    Why do you need the HydraMat if you already have a baffled tank? My buddy put it into his stock Fairlane tank because it had no baffles. Andrew

  6. #6
    Join Date
    Dec 2009
    Location
    Connecticut
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    19,078

    Default

    Correct. If you already have an in-tank sock filter & baffled fuel tank, then a HydraMat won't solve a "fuel pressure on launch" problem.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  7. #7

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    If I had 1/2 tank or less, the fuel pressure would drop to zero at launch! If I filled the tank, it would work fine.

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