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David Thomas Stewart's
390hp 1750lb Lotus Elise
Updated: 06/13/2013
latest
Latest Motor 7/31 Photoshoot Waxed 1 Waxed 2 Interior
On the race track Kansas Speedway Kansas Speedway + me Heartland Park Porsche Club Chasing down a Viper Dyno Graph
 
 
Ownership Timeline
(click on year to expand/contract)
 
Years:  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013
DateDescription
02/08/2013Oil change at home with Motul 8100 (31930 miles)
06/13/2013Current mileage: 33160

Modification History
(categorized by section)
 
DateElise WeightsDeltaLbs.Kg.
08/26/2005Base Model Elise (base suspension, touring package)0.0001980.00897.96
08/26/2005Delete Touring Pack option-12.0001968.00892.52
08/26/2005Add Lotus Sport Suspension option (my baseline)-20.0001948.00883.45
08/26/2005Remove padded touring softtop-11.0001937.00878.46
08/26/2005Completely empty (10.60 gallon, 40 litres) gas tank and no top-77.0001860.00843.54
 
DateInterior Trim, Audio & HVACDeltaLbs.Kg.
08/28/2005Remove visors-1.1001858.90843.04
09/17/2005CG Lock seatbelt fastener0.2501859.15843.15
10/13/2005Leather emergency brake cover0.0631859.21843.18
02/21/2006Infinity Reference speakers-0.2061859.01843.09
02/22/200635% window tint on rear window & sides / 15% eyebrow in front0.0631859.07843.12
02/22/2006Lotus Sport & Elise front license decals0.0631859.13843.14
03/10/2006Remove visor posts-0.1501858.98843.08
10/01/2006AutoZone rearview mirror-0.1701858.81843.00
10/01/2006Stan's clutch stop mod0.0131858.83843.00
11/15/2006Stan under console shifter stability mod0.0131858.84843.01
04/03/2007Passenger airbag / ABS cutoff switches0.0631858.90843.04
08/16/2008Remove under dash panels to improve A/C performance-0.2751858.63842.91
01/10/2009Carbon Fiber RevoSport door panels-1.2751857.35842.34
03/05/2009Hardwired subwoofer and datalogging cables1.5251858.88843.03
02/28/2010Billet aluminum carpet buttons0.0631858.94843.06
03/28/2010Carbon Fiber Creations binnacle, steering surround, HVAC0.9831859.92843.50
05/23/2010Remove rear speaker panel + refactor-4.2601855.66841.57
05/23/2010Interior sound deadening (DynaLiner, batting, fabric)2.7931858.46842.84
06/03/2010EliseParts polished window winders, signal stalks & handbrake-0.0441858.41842.82
07/14/2011FastToys Carpet / footrest delete-0.9101857.50842.40
07/14/2011FastToys Carbon Fiber footwell divider-0.5711856.93842.15
07/25/2011CarbonOne Carbon Fiber center console-0.4341856.50841.95
04/08/2012FastToys Carbon Fiber Side Sills-1.5751854.92841.23
07/06/2012RLS Carbon Fiber door pulls-0.1131854.81841.18
09/28/2012RLS Carbon Fiber steering wheel ring0.0631854.87841.21
05/23/2013Composite Worx CF Single Skin Seats-19.1251835.75832.54
06/07/2013Underseat ABS retractable dual cupholder0.2441835.99832.65
 
DateExterior Trim & AeroDeltaLbs.Kg.
12/05/2005MultiVex side mirrors0.0631836.05832.68
09/16/2006Carbon Fiber front splitter with hardware3.0301839.08834.05
06/11/2007Remove exhaust heat shielding-2.4701836.61832.93
08/16/2008Aerocatch engine cover lock-2.1031834.51831.98
10/24/2008Engine cover mesh-1.2941833.22831.39
12/07/2008Carbon Fiber side mirror covers0.1001833.32831.44
02/02/2010Door edge molding for front splitter edge protection0.2251833.54831.54
09/30/2010Custom BOEfuser 4-element diffuser with integrated undertray0.6261834.17831.82
11/03/2010Custom rear clam (shave indicators, tail fins, lid holes, fill lines)-1.6801832.49831.06
01/15/2011Apply new rear 'LOTUS', 'Elise R' and side 'R' decals 0.0051832.49831.06
09/10/2011Speedglass windshield with stock surround trim-12.0581820.43825.59
05/09/2012Custom rear eliminator panel with mesh grill-3.1861817.25824.15
10/14/2012Matte black front windshield brow/trim0.0051817.25824.15
05/23/2013GB Composites CF Gascap-0.4981816.76823.93
06/12/2013CF Front Access Panels-1.1751815.58823.39
 
DateDrivetrain, Engine Compartment, TrunkDeltaLbs.Kg.
08/28/2005Remove battery cover / toolkit-2.1251813.46822.43
07/10/2006Remove trunk side carpet-1.4381812.02821.78
07/10/2006Remove Fix-a-flat aerosol can-0.8251811.19821.40
07/10/2006Remove rear trunk carpet-0.7881810.40821.05
08/05/2006Remove foam trunk pad-0.4151809.99820.86
08/05/2006Remove trunk release handle-0.0151809.97820.85
10/26/2006Felt trunk "carpet" liner0.3501810.32821.01
10/27/2006BOE Fabrication "Silent Touch" exhaust (current)-15.7061794.62813.89
10/27/2006ForcedFed street header + decat-10.6001784.02809.08
07/20/2007NGK AFX Wideband Air Fuel System 1.7401785.76809.87
07/20/2007Katana Supercharger System (440cc injectors, 3.4" pulley)18.6201804.38818.31
08/21/2007Fidanza aluminum flywheel-5.5151798.86815.81
08/21/2007ACT LE1-XTSS Extreme Clutch-0.4151798.45815.62
09/11/2007Remove charcoal canister & related plumbing-4.2691794.18813.69
11/16/2007VoltPhreaks VPH-700 battery + custom BOE bracket-19.2001774.98804.98
11/16/2008BOE Clamhinge system (with revised engine lid bracket)2.0131776.99805.89
03/01/2009LETSLA short shifter mechanism-0.7251776.27805.56
03/01/2009BOE TVS1320 Supercharger system (550cc injectors, 82mm pulley)6.3401782.61808.44
03/01/2009EFI Engine Management + wiring harness (mounted internally)3.5201786.13810.04
05/25/2009Aluminum rear clam shims-1.0631785.06809.55
06/05/2009Remove secondary O2 sensor & cap bung-0.2061784.86809.46
06/07/2009Remove 20" of extra battery cable-0.8691783.99809.07
06/30/2009ProAlloy 54 litre gas tank / Walbro 255 fuel pump-9.6401774.35804.69
03/30/2010Sector 111 gPan Oil Pan2.2501776.60805.71
03/30/20105 liters of Motul 8100 XS engine oil (from 4.4 liters)1.1121777.71806.22
05/06/2010Thermo-Tec "Suppressor" heat/sound control mat0.8751778.59806.62
05/06/2010Relocate EFI to interior, cables, washer fluid reservoir-1.1631777.42806.09
05/14/2010Supertech stainless valves + Eibach springs0.0001777.42806.09
05/14/2010BOE NewTech Nikasil lined 2ZZGE short block0.0001777.42806.09
05/14/2010Calico coated 9.0:1 Wiseco forged pistons-0.6761776.75805.78
05/14/2010Calico coated ACL crank & rod bearings0.0001776.75805.78
05/14/2010CircuitWorx billet oil pump gears0.0001776.75805.78
05/14/2010ARP head studs0.0001776.75805.78
05/14/2010Trim "U-tube" cooling pipe-0.5251776.22805.54
05/14/2010MWR alternator / water pump underdrive pulleys-0.3041775.92805.41
11/03/2010CarbonOne Carbon Fiber spark plug cover-0.0521775.87805.38
02/28/2011BOE Catch Can System1.0501776.92805.86
05/17/2011BOE Phenolic Intake manifold spacer0.1061777.02805.91
05/17/2011BOE TVS REV400 Supercharger (750cc injectora, 70mm pulley)23.1291800.15816.40
05/17/20113/4 gallon of coolant for Intercooler6.0751806.23819.15
10/02/2011BOE Swirl Pot Rev400 upgrade + 6 oz additional coolant0.4411806.67819.35
10/02/2011BOE ITG Intake System (revised clamps)-3.0401803.63817.97
02/08/2013Remove front oil coolers (hosing, sandwich, oil in system)-23.7901779.84807.18
03/12/201345 second delay circuit for Rev400 IC pump/fan0.0401779.88807.20
 
DateWheels, Tires, Brakes, SuspensionDeltaLbs.Kg.
04/11/2006Remove camber shims (3mm)-0.1501779.73807.13
06/17/2008Custom 2-piece brake rotors-11.3881768.34801.97
08/26/2008Polyurethane front and rear motor mount inserts0.4131768.75802.16
11/17/2008TRM F1 17x7.5 rear wheels-8.2001760.55798.44
11/17/2008TRM F1 16x6.5 front wheels-5.7001754.85795.85
11/17/2008General UHP tires (195/50/16 front, 225/45/17 rear)-4.0001750.85794.04
03/04/2010BOElinks aluminum rear toelinks-1.8131749.04793.22
 
DateLightingDeltaLbs.Kg.
08/28/2005LED brake light flasher module0.2251749.26793.32
01/15/2006SilverStar H7 high beams0.0001749.26793.32
01/15/200655watt 8000k HID headlights1.8631751.13794.16
10/26/2006Aluminum headlight embellishers0.0381751.17794.18
11/15/2008White LED rear license plate lights-0.0801751.09794.14
12/08/2009Red LED rear tail / turn / brake lights-0.1901750.90794.06
09/30/2011LED Halo daylight running light rings0.0651750.96794.09
10/10/2011Amber LED front turn signal lights-0.0801750.88794.05
03/10/201310 second delay circuit for daylight running lights0.0401750.92794.07
 
DateCurrent WeightsDeltaLbs.Kg.
06/12/2013Empty (no driver, no gas, no top)-1750.92794.07
06/12/2013Full (no driver, 14.26 gallons (54 litres) gas, no top)86.561837.48833.32
06/12/2013Street (no driver, full gas, factory hardtop, subwoofer)120.871871.79848.88
06/12/2013Street (no driver, full gas, BWR hardtop, subwoofer)99.411850.33839.15
06/12/2013Street (driver 165lbs, full gas, factory hardtop, subwoofer)285.872036.79923.71
06/12/2013Street (driver 165lbs, full gas, BWR hardtop, subwoofer)264.412015.33913.98
06/12/2013Track (driver 165lbs, full gas, BWR hardtop, track wheels, data/video)277.512028.43919.92
06/12/2013Drag (driver 165lbs, 2 gallons gas, BWR hardtop, data/video)193.091944.01881.64
 
DateFuture ModsDeltaLbs.Kg.
TBDCF Rear Engine Lid (semi-painted)-8.0001742.92790.44
TBDRear Lexan Window-1.8501741.07789.60
TBDRemove EFI Engine Management + wiring harness (mounted internally)-3.5201737.55788.00
TBDNitron Single Adjustable Coilovers-3.6001733.95786.37
TBDBOE CF Side Mirrors-4.0001729.95784.56
TBDCF Mudflaps (2 oz vs 24 oz)-1.3751728.58783.93
TBDSector111 Aluminum uprights-8.8001719.78779.94
TBDBOE Fuel Surge Tank (to allow safe fuel pressure at 7000+ rpm)6.0001725.78782.66
TBDBOE 65mm Supercharger Pulley (18psi boost)-0.1201725.66782.61
TBDRace Rack Steering Rack-0.3001725.36782.47
TBDTruleo side skirts3.0001728.36783.83

Drag Strip Performance (7 events)
 
KCIR 798'
elevation
10/28/2005
Fri 6pm-10pm
57 degrees, 30.22 pressure, 55% humidity (1.017 correction) DA 728' to 791'
Completely bone stock (2090 lbs.)
Run #R/T60'330'660'mph1000'1/4 milemph
10.5341.7255.3028.34481.2510.95313.180101.13
20.3591.6615.3098.39879.9111.04013.30699.31
30.2621.6405.3128.63268.4811.52413.90694.17
40.3052.3896.1999.32179.4111.97214.25099.05
50.2342.0145.7828.91179.2311.55513.82799.66
60.3222.0385.8678.97079.7111.61613.87199.83
70.3861.9515.7598.89079.3111.52913.794101.31
80.4041.9905.7238.80680.3211.43713.681100.50
90.1991.9745.7348.81480.4211.42913.658102.70
100.2791.9045.5578.62181.1011.22613.469102.20

KCIR 798'
elevation
11/19/2006
Sun 12pm-4pm
47 degrees, 30.38 pressure, 47% humidity (1.040 correction) DA -463' to -302'
TurboXS intake, ForcedFed street header + decat, 6" 2bular exhaust (2050 lbs.)
Run #R/T60'330'660'mph1000'1/4 milemph
10.1602.0955.6818.74581.7811.33913.550104.19
20.3261.7595.4388.50081.7711.09713.313104.05
30.3341.8145.3628.39782.4410.98313.194104.29
40.4071.8985.4858.52382.3711.10813.315103.92
50.2751.7425.2918.31182.7210.89113.098104.35
60.6671.7165.2308.25782.4910.83713.030105.06
70.4451.8265.6148.75079.9911.37713.653101.03
80.3311.7945.4578.52981.4111.12513.351103.84
90.3701.8165.4468.51381.6111.11613.337103.06
100.3252.3486.4199.65377.8512.31814.608100.61

KCIR 798'
elevation
11/18/2007
Sun 12pm-4pm
60 degrees, 30.00 pressure, 54% humidity (1.004 correction) DA 467' to 1013'
As above + stock intake/green filter + Katana supercharger 3.2" pulley (2070 lbs)
Run #R/T60'330'660'mph1000'1/4 milemph
10.2791.9735.7848.82782.9611.36013.493106.34
20.1881.8235.3138.21186.2710.68412.774108.19
30.3201.8105.2238.09087.3010.53812.603109.63
40.1592.1035.7188.65586.0511.15513.264107.47
50.2071.9775.4708.35687.3310.82112.902108.80
60.4972.3556.1309.13484.0111.64113.745107.78

KCIR 798'
elevation
11/23/2008
Sun 2pm-4pm
54 degrees, 29.98 pressure, 63% humidity (1.011 correction) DA 742' to 839'
As above + 3.4" pulley, AreaP exhaust, street tires (2030 lbs)
Run #R/T60'330'660'mph1000'1/4 milemph
10.4471.8735.5578.51985.5710.99613.072111.99
20.4461.7815.2708.17286.8610.62912.697112.10

KCIR 798'
elevation
11/21/2009
Sat 1pm-3pm
56 degrees, 29.98 pressure, 74% humidity (1.005 correction) DA 532' to 995'
As above + TVS Stage 1 Supercharger (1980 lbs)
Run #R/T60'330'660'mph1000'1/4 milemph
10.9361.9635.5558.30190.9610.62612.557114.91
20.7661.7334.9997.64892.449.92311.830115.94
30.8592.2165.7558.52788.0110.87512.894111.52
40.7321.9135.3048.00988.8610.29712.265117.69
50.7602.0975.8818.72585.6311.07213.079115.66
60.8161.7755.0307.675-9.93811.849117.47

 
MphTime
0:0.00
10:0.82
20:1.13
30:1.44
40:1.96
50:2.89
60:3.65
70:4.82
80:5.80
90:7.12
100:8.64
110:10.07
120:12.40
 
Mph RangeSeconds
60-80:2.15
80-100:2.84
60-100:4.99
60-120:8.75

KCIR 798'
elevation
10/28/2011
Fri 6pm-7pm
55 degrees, 30.17 pressure, 31% humidity (1.023 correction) DA 498'
As above + BOE TVS1320 Rev400 Supercharger + Nitto NT555R's (2015 lbs)
Run #R/T60'330'660'mph1000'1/4 milemph
10.1071.7634.8677.41699.359.64811.477123.45
2-0.0061.7964.9197.50598.459.73911.568123.59

 
MphTime
0:0.00
10:0.59
20:1.02
30:1.50
40:1.94
50:3.07
60:3.63
70:4.26
80:5.69
90:6.60
100:7.53
110:9.61
120:11.09
125:12.01
 
Mph RangeSeconds
60-80:2.06
80-100:1.84
60-100:3.90
60-120:7.46

KCIR 798'
elevation
11/27/2011
Sun 12pm-1pm
38 degrees, 30.23 pressure, 57% humidity (1.046 correction) DA -728'
25mph HEADWIND and slippery conditions (1997 lbs)
First run missed 3rd so just went into 4th...
Run #R/T60'330'660'mph1000'1/4 milemph
1-0.0031.9775.3628.41880.6710.86512.815116.35
20.5841.7875.1777.93993.5810.22212.121119.95
30.0512.0295.3288.04493.9310.29911.953121.57

Best Track Times (27 events)
 
Track LocationYear (Track Days)Best Lap TimeBest speed (mph)
Heartland Park Topeka
Club Course
2.10 miles
"Touring Club""
2006 (x5)01:45.65117.85
2007 (x5)01:43.90123.12
2008 (x1)01:41.58119.65
2009 (x1)01:37.97120.88
2010 (x4)01:34.63120.30

Heartland Park - Club Course - 07/07/2010

Heartland Park Topeka
Grand Prix Course
2.50 miles
2006 (x1)02:05.20111.70
2008 (x2)01:57.65123.61
2009 (x2)01:52.62131.20

Heartland Park - Grand Prix Course - 10/16/2009

2010 (x1)01:53.59120.00
2011 (x1)01:59.94122.17
Mid America Motorplex
Full Course
2.23 miles
2006 (x1)01:51.21113.62
2007 (x2)01:50.50121.42
2010 (x1)01:47.80126.40


Best Autocross Times (8 events)
 
Club / EventDateTimeRankPAX Rank
KCRSCCA #609/25/200548.44181 / 11388th
KCRSCCA #810/23/200558.42271 / 10784th
Crown #103/26/200650.25751 / 11280th
Crown #204/23/200643.49414 / 7626th
Crown #305/14/200647.05447 / 8160th
Crown #406/04/200644.90725 / 7042nd
Crown #507/15/200648.76425 / 6246th
KCRSCCA #608/09/200956.58857 / 6963rd
 
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hits since 10/10/2007