600+ HP 2012 Arctic Cat XF1100T turbo drag sled

600+ HP 2012 Arctic Cat XF1100T turbo drag sled

600+ HP 2012 Arctic Cat XF1100T turbo drag sled
builders/ tuners/ parts suppliers: Craig Campton, Glenn Hall, Mike
Everson, Precision Turbo, D&D Powersports, Boondocker, CP pistons
and Total Seal rings, Trend wrist pins, Carillo rods, Cometic
headgasket, single Accufab throttle body, Arctic Cat stock block, head
and crankshaft.
This drag sled is owned by two long time friends Mike Everson and Craig Campton.
Mike and Craig collaborated with D&D’s Glenn Hall to turn a new 2012 XF1100T into a
competitive “Outlaw” grass and ice drag racer called “The Green Hornet”. Five cubic
inches were added to the Cat engine’s displacement by modifying (“stroking”) the stock
crankshaft to increase the stroke to three inches, giving the engine a total of 70 cubic
inches. Besides the using strong internal engine parts listed above, Campton modified the
stock head by CNC porting the intake and exhaust ports, and fitted it with custom ground
turbo race camshafts to optimize airflow at high boost. Stock size valves are used. The
stock engine block is showing great durability at these astronomical power levels,
especially when octane is sufficient (120 motor octane) and tuning is spot on like this is
and detonation is avoided. The stock ECU is reprogrammed by D&D, and all tuning is
done with a HiJacker. There were zero “clicks” of knock registered on the DTR
detophones during this testing session!
As shown in the photo, a large air to air intercooler is used to act as a heat sink on
takeoff, then becomes a good heat exchanger at high (up to 145 mph on grass) vehicle
speeds. On the dyno we blasted the intercooler with constant 80 mph air from a 10”
diameter duct. But in the field at higher speeds, the intercooler is likely even more
effective in reducing charge air temperature and making even more HP (since there is lots
more airflow CFM available from the huge Precision ball bearing turbo!).
Mike Everson and Glenn Hall brought the sled to DTR after a grass dragrace in Hasting
Michigan to see exactly what power level they had been racing with, and to see if the
DTR horsepower record (560) was within reach. Glenn had done all of the preliminary
tuning on his track dyno, and as expected spot-on here with A/F ratio in the mid to high
11/1 range. With the boost pressure set as it was at the prior weekend’s race, the engine
made over 550 HP as shown here. Glenn considers fuel flow, fuel pressure and boost
pressure to be proprietary tuning data in this ultra-competitive class so it’s not measured/
shown. Instead, correction factor and weather conditions during each test are shown.
Tested as it was run at Hastings 10/8/11
EngSpd
RPM
8500
8600
8700
8800
STPPwr
CHp
534.2
552.2
544.1
547.9
STPTrq
Clb-ft
330.1
337.2
328.5
327.0
AirInT
degF
63.1
63.1
63.1
63.3
Baro_P
InHga
29.17
29.17
29.17
29.17
STPCor
Factor
1.043
1.043
1.043
1.044
Humidy
%
68.5
68.5
68.5
68.5
BoostP
psig
ExhPrs
psig
8900
9000
9100
9200
9300
9400
9500
9600
9700
554.1
556.3
551.5
549.5
552.4
547.2
546.1
546.6
548.4
327.0
324.6
318.3
313.7
312.0
305.7
301.9
299.0
296.9
63.4
63.5
63.6
63.7
63.7
64.0
64.0
64.0
63.9
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
1.044
1.044
1.044
1.044
1.044
1.045
1.045
1.045
1.045
68.5
68.5
68.5
68.5
68.5
68.5
68.5
68.5
68.4
Glenn tweaked the boost pressure about five psi higher, and on this final run hit the 600
HP mark for the first time ever at this facility. 8.6 HP per cubic inch on gasoline is
incredible! And here we set the dyno computer to record every 25 RPM, in case that
magical 600.0 HP number were to fall in between one of the typical 100 RPM
incremental measurements. There’s nothing worse than a 599.9 HP dyno sheet! Note,
also, that when we loaded this engine WOT to steady it at 8500 just before beginning the
three second acceleration test, it was sitting there for a moment with nearly 580 HP!
Final test with turbo boost pressure adjusted “just enough”…
EngSpd
RPM
8500
8525
8550
8575
8600
8625
8650
8675
8700
8725
8750
8775
8800
8825
8850
8875
8900
8925
8950
8975
9000
9025
9050
9075
9100
9125
9150
STPPwr
CHp
578.7
582.7
585.5
584.6
585.5
586.1
587.0
587.6
587.7
587.7
585.8
585.5
585.2
586.2
587.2
587.6
589.0
589.8
590.6
592.0
592.0
593.2
592.5
592.5
585.8
587.1
589.3
STPTrq
Clb-ft
357.6
359.0
359.7
358.1
357.6
356.9
356.4
355.7
354.8
353.8
351.6
350.4
349.2
348.9
348.5
347.7
347.6
347.1
346.6
346.4
345.5
345.2
343.8
342.9
338.1
337.9
338.3
STPCor
Factor
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.046
1.047
1.047
1.047
1.047
1.047
AirInT
degF
64.3
64.3
64.3
64.3
64.3
64.3
64.3
64.3
64.3
64.3
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.4
64.5
64.5
Baro_P
InHga
29.16
29.16
29.16
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
Humidy
%
73.6
73.6
73.6
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
73.7
ElpsTm
Secnds
0.08
0.39
0.58
0.81
0.85
0.88
0.92
0.94
0.99
1.02
1.11
1.15
1.21
1.23
1.25
1.27
1.28
1.30
1.33
1.34
1.37
1.38
1.41
1.45
1.64
1.79
1.84
ExhPrs
psig
BoostP
psig
9175
9200
9225
9250
9275
9300
9325
9350
9375
9400
9425
9450
9475
9500
9525
9550
9575
9600
591.6
593.6
595.7
597.2
598.7
600.2
601.9
602.9
604.1
602.4
602.6
602.4
602.8
598.5
599.4
600.5
598.8
595.4
338.6
338.9
339.2
339.1
339.0
339.0
339.0
338.7
338.4
336.6
335.8
334.8
334.1
330.9
330.5
330.2
328.4
325.7
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
1.047
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.5
64.6
64.6
64.6
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
29.17
73.6
73.6
73.6
73.6
73.6
73.6
73.6
73.6
73.6
73.6
73.6
73.6
73.6
73.5
73.5
73.5
73.5
73.5
1.87
1.89
1.95
2.02
2.05
2.08
2.10
2.13
2.16
2.29
2.34
2.39
2.43
2.62
2.65
2.68
2.85
2.98
Here’s our new high speed 4130 lightweight tubular 1.5” diameter rubber dampened
driveshaft—designed to deal with super-high torque and 10,000 RPM. Note Craig
Campton’s sensually formed, flowbench- designed boost plenum mounted to the throttle
body.
Mike Everson and Glenn Hall “High Sixing” after the test session!