Lotus Elon More power, EgorMotor - Own adapter - gearboxMotor inFront 3 Tesla modulesRear 2 Tesla Modules SortedClose up Battery F battery modules over Why are Cars now SO big ?
OwnerMark Sanders
LocationPoole, England United Kingdom map
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Vehicle1969 Lotus Lotus Elan S4 DHC
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Mission: to show the world that Electric
Cars can be light, fun and completely guilt
free and that lotus DNA 'performance through
lightness' applies to EV's too

At 650Kg is 20Kg lighter than the original
ICE

FUN from the SUN !!

videos:
WebPage
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with PV's (aka free miles - from the sun)
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MotorNetgain Hyper9 3-Phase AC
AC120 (120v)
DrivetrainNetgain Hyper9, standard 4 speed gearbox,
Standard 3.77 diff, up rated drive shafts. No
clutch ('regen off' by gear knob button for
changes , if nec).
ControllerNetGain Controls AC120
120v
Batteries5 Tesla Tesla x, 22.00 Volt, Lithium-Ion
5 x Tesla Model X P90D battery modules, most
energy from 125kg - 3 in front 2 in rear for
same weight distribution - 28kWh, 125v
System Voltage125 Volts
ChargerElcon 6.6Kw
Heater1.5 Kw brewers 120v DC heater mounted in the
battery/Controller/Radiator wet circuit (heats
up pax aand batteries in winter, with rad
bypassed. And Rad( lightweight off FFord 1600)
cools in summer.
DC/DC Converter Unknown
Chinese 120v to 13v
InstrumentationsimpBMS showing tesla battery state temps, volts
amps SOC and driving Fuel Gauge (by PWM).
PLUS standard speedo Tacho off 4 magnests on
drive shaft (durrrr should be 2 for 4 cycle
engine so use divide by 2 signal processor ;-) )
Top Speed120 MPH (193 KPH)
Hyper9 Electric AC Motor, programmable regen
etc. Similar to TwinCam with 88Kw/118hp
@5000rpm plus
235Nm/173lbft @0rpm, 73Kg lighter
Gearbox but no clutch - cancel Regen button
on gear knob to change gear (if necessary !)
AccelerationBallistic in 1st and 2nd limited by wheel
spin. But tops out at 40 and 60mph.
3rd Gear for most uses, and prob best 0-60
est 5 to 6 seconds. 4th for cruising and fast
circuits up to 120mph (tested but feels abit
scary without any aero !!) - pulls from zero
easy in 4th.
Range150 Miles (241 Kilometers)
Best/worst range 200/100 miles (lightweight, low
CdA and regen helps). Elans have a ‘dirty little
secret’ : it only got 23mpg before conversion !
Watt Hours/Mile8 Wh/Mile
Not fully tested as amps / Kw swings about so
much but range tested to 150 miles with spare.
28Kwh pack (+bigger than BMW's 22KWh i3 at UNDER
half weight and frontal area)
EV Miles
Start:78,000 Miles (125,502 Kilometers)
Current:80,000 Miles (128,720 Kilometers)
Total:2,000 Miles (3,218 Kilometers)
 
    As of 10/15/2021
Seating Capacity2
Curb Weight1,430 Pounds (650 Kilograms)
20Kg lighter than original with ICE power. AND
similar range !!
TiresFirestone 155x13
Conversion Time9 months / 400 hours
Conversion CostTatty 1 owner £23K Elan S4- rusting at back
of Miles
Wilkins garage, then with rebuilt twincam
engine, new
chassis and suspension, by Miles, but no
other
restoration.
Sale of TwinCam, exhaust etc £8.5K
Cost of most EV and conversion parts £12K,
Total £26.5K PLUS about 400 hours of blood
sweat and
tears engineering.
Additional FeaturesSpec Summary:
‚ 650Kg (1430lbs which is ~20kg lighter than before conversion) -
this needed slightly lowered springs,
possible as no exhaust hanging down, and results in horizontal
lower wishbones and accurate geometry.
‚ Hyper9 Electric AC Motor, programmable regen etc. Similar to
TwinCam with 88Kw/118hp @5000rpm plus
235Nm/173lbft @0rpm, 73Kg lighter
‚ 5 x Tesla ModelX P90D battery modules, most energy from 125kg -
3 in front 2 in rear for same weight
distribution - 28kWh, 125v
‚ Best/worst range 200/100 miles (lightweight, low CdA and regen
helps)
‚ 6.6Kw (slow) Onboard Charger controlled by simpBMS, with Speedo,
Tacho and 'fuel' gauge (as well as
cockpit) all original and working.
‚ Kept Gearbox, but not clutch - It pulls from zero in top gear,
so you select one gear depending on journey:
from tyre shedding in 1st/2nd to 3/4th for speed/cruising
Controversial - Some hatred from Lotus purists (even 1st owner, in
his 70's .. "you did WHAT to MY car ? " !!). But,
to be fair, it got a lot of instagram likes from more enlightened
lotus folk. Lotus are more interested in their current
range, than 'heritage brought up to date' fare enough, but I hoped
this might have been a neat segway to the Evija

code by jerry