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| Heads for 250 Blower ? | Login/Join |
| DRR Trophy |
New best this past weekend on the 33 pulley with some killer air. Went 4.89@142.95 and was off .03 in 60ft. It got on the bars a little too hard and rattled the tires on the leave. Would like to have made another hit without rattling the tires but they had a tree malfunction so we headed home. | |||
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| DRR Sportsman |
Brodix -3xtra 335’s ported exhausts titanium valves, Brodix aluminum block, 4.500 Bore, 4.250 stroke 12-7.1 compression Naturally Aspirated 936.2 HP 747.1 torque 4.81/143 best 8.90/170 10-20 TBS 250 blower 39/67 pulley Standard top with black widow spacer APD 1250 Alcohol Enforcer 4.60/151 best Blown 1250 Carb/Buffco top 1st pull 3# Boost 6800 RPM 39 Pulley 1250 Carb 1157/957 30 degrees timing 7500 RPM 39 Pulley 1250 Carb 3# Boost 1207/957 30 Degrees Timing MM016SB1 4.65/151 4.29 gear little bubba 37 Pulley 1250 Carb 4# Boost 1245/981 30 Degrees Timing MM016SB1 4.538/153.13 4.29 gear little bubba 8.90/181.99 With big bubba 8.90/181.74 35 Pulley 1250 Carb 5# Boost 1289/1021 30 Degrees timing MM016SB1 @3500’ 4.559/152.76 35 Pulley 1450 Carb 5# Boost 1302/1034 30 Degrees Timing 33 Pulley 1450 Carb 6# Boost 1.021 60’ 2.880 330’ 4.452/156.44 Big Bubbas 29 degrees timing 4.29 gear MM016SB1 Shift @1.75 7721 RPM 2017 Lbs | |||
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| DRR Sportsman |
Thanks to everyone who replied, looks like getting any head is weeks months out. Supply may be better after first of year or we can only hope. Jeff McClure | |||
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| DRR Trophy |
Made it back Saturday in some good air and ran a new best at 4psi (33 pulley). Car is 2740 lbs, glide with 1.69 low, 4.30 gear, 26 degrees timing, and 32x14.5w tire. Went 1.107 60ft 3.159 330ft and 4.855@143.27. | |||
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DRR Sportsman |
You need a big bubba, 4.10 gear and possibly a tighter converter, then it should run the numbers you are looking for. Jeremiah Hall | |||
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| DRR Sportsman |
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