Silas Bonar Andrianto (silasbonar46) is an amateur racing driver with 67 recorded laps across 61 vehicles on LapMeta, averaging 1.1 laps per car. The name "Andrianto" indicates Indonesian heritage—Indonesia has growing motorsport culture with circuits like Sentul International Circuit hosting national and regional championship events. Indonesian enthusiasts often face challenges accessing diverse automotive variety domestically, making international circuit tourism particularly valuable for comprehensive vehicle exposure.
His LapMeta data shows concentrated testing with 47 laps at GP configuration and 20 laps at CW layout. Despite sampling 61 different vehicles, the overwhelming GP circuit focus demonstrates systematic vehicle comparison approach—extensive automotive sampling at familiar venue for controlled evaluation. This methodology enables objective comparative assessment where circuit familiarity isolates vehicle variables from track learning. The 61-vehicle portfolio represents substantial automotive exposure spanning diverse platforms, engineering philosophies, and performance approaches. With 67 laps across 61 vehicles concentrated at GP configuration, Silas Bonar Andrianto represents the internationally-minded enthusiast pursuing comprehensive comparative automotive education through systematic sampling at standardized venue supporting objective vehicle dynamics understanding.
so the camshaft improves 10WHP and cuts my laptime down 7 seconds from 2:19 (last year mandalika trip) to 2:12
This my Daily Driven BMW E30. i drove it all the way from jakarta to lombok, to mandalika circuit, 50 laps, and drive it back to jakarta (stop at boyolali circuit to do few laps - video coming soon)
why? my answer is why not?
i love e30 and it is the car that started it all in my BMW world. #e30forLife and i buy one of the best example in the market at that time because i want to use it for a very long time… i never really think about selling… i use it for me and for my passion. maybe my kids in the future can sell them if they want to… after i inherit it to them… i want to prove that a mild modified 32 years old car can still can be reliable and can keep up with newer cars on any motorsport activities… just sharing my view on making the best of what i own… instead of keep comparing or wanting what we couldn’t afford…
Engine: M40B18
Spec:
M52B25 piston shave 1mm under block deck
M43b18 conrods
M40B18 1800cc crank
Dbilas cam 268/264 11.2 lift
stock valve and valve springs
M20 Flywheel 228 clutch
e36 1:1 5th gearbox
3.4 final drive open diff 168mm
custom header
eisenmann mid back
stock spring and Bilstein B6 oem shock
Z3 rear swaybar
PU diff and LCA bushing
Avanza Steering Joint
Spitronics Mercury2
91.2WHP at AHT Dyno
AFM Delete
M60 IAT sensor
front and rear e30 325i brakes system
rear e30 325i trailing arm
front 318i sway bar
M20 Coil Pack
Bkr6egp plugs
M43 electric fan
DW200 fuel pump
if you read this far. thank you for your time 🙇🏻♂️