Hi guy’s,
Here’s a recent dyno run I wanted to post.
Keith Craft 331 ‘Econo Stroker’. Has a Ford Motorsport Aluminum intake and a Holley Street Avenger 670 carb. Needs a bigger 850 manual secondary DiVinci or Holly HP according to the guy’s (Drew & Michael) at the Keith Craft shop in Dallas. If I did that, they believe I could pull +/- 340HP at the rear wheels.
TFS hyd roller cam Intake – 339 @ valve 542 – Duration286
Exhaust- 352 @ valve 563 – Duration 294
Rocker Ratio 1.6
Lunati street race rods
Scat cast crank
28oz balance
Mahle 4.030 flat top pistons
AFR 165 aluminum heads
Air temp was 42-49 degrees and 29.5% humidity
Run 1 – Car warm from drive over-too lean
HP-311.70 TQ-310.55
Run 2 – Car hot – Fresh fuel in secondary bowls-too lean
HP-312.60 TQ-310.13
Run 3 – Car hot – Manually opened vacuum secondaries-Too lean
HP-324.55 TQ-325.88
Run 4 – Re-jetted and air filter off – Car warm-richer
HP-316.60 TQ-322.42
Run 5 – Re-jetted and air filter on (K&N with filter top – Car hot-Fuel just right
HP-307.38 TQ-308.51
I'll take some pic's of the dyno run sheets & try to post them for you all this week end.
Here’s a recent dyno run I wanted to post.
Keith Craft 331 ‘Econo Stroker’. Has a Ford Motorsport Aluminum intake and a Holley Street Avenger 670 carb. Needs a bigger 850 manual secondary DiVinci or Holly HP according to the guy’s (Drew & Michael) at the Keith Craft shop in Dallas. If I did that, they believe I could pull +/- 340HP at the rear wheels.
TFS hyd roller cam Intake – 339 @ valve 542 – Duration286
Exhaust- 352 @ valve 563 – Duration 294
Rocker Ratio 1.6
Lunati street race rods
Scat cast crank
28oz balance
Mahle 4.030 flat top pistons
AFR 165 aluminum heads
Air temp was 42-49 degrees and 29.5% humidity
Run 1 – Car warm from drive over-too lean
HP-311.70 TQ-310.55
Run 2 – Car hot – Fresh fuel in secondary bowls-too lean
HP-312.60 TQ-310.13
Run 3 – Car hot – Manually opened vacuum secondaries-Too lean
HP-324.55 TQ-325.88
Run 4 – Re-jetted and air filter off – Car warm-richer
HP-316.60 TQ-322.42
Run 5 – Re-jetted and air filter on (K&N with filter top – Car hot-Fuel just right
HP-307.38 TQ-308.51
I'll take some pic's of the dyno run sheets & try to post them for you all this week end.