Took my car for a couple of runs on a chassis dyno yesterday and got some disappointing results. The peak horse power is not what I expected, but the torque curve and peak was the severe let down.

Motor specs:

  • 512 low deck stroker
  • 10.5:1 compression
  • OOTB Eddie 84cc heads
  • Comp XR280 roller cam - .541/.537 lift - 230/236 duration @ 0.050
  • Holley Sniper EFI


Gary at Jake's suspects the torque converter for the lack of a broad flat torque curve. It's a Turbo Action 17809ST tight converter. I reused it from the build before swapping to the big block stroker.

You guys got any ideas? The results are with the exhaust dumps open on the car flowing though 1 7/8" primary mid length headers.

Thanks.

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1987 Fifth Avenue - 512/518/D60