On this page you can find an assortment of technical information and tips I've gathered. From basic information such as engine codes.
Please take note I bear no responsibility to the accuracy of the information presented here. All information used is at your own risk.
Daihatsu engine coding:
HD-EG - 1.6 litre 4-cylinder, SOHC, 16-valve EFI
HD-EP - 1.6 litre 4-cylinder, SOHC, 16-valve EFI
HD-E - 1.6 litre 4-cylinder, SOHC, 16-valve EFI
HE-EG - 1.5 litre 4-cylinder, SOHC, 16-valve EFI
HC-E - 1.3 litre 4-cylinder, SOHC, 16-valve EFI
HC-EJ - 1.3 litre 4-cylinder, SOHC, 16-valve EFI
K3-VET - 1.3 litre 4-cylinder, DOHC, 16-valve EFI turbo
K3-VE2 - 1.3 litre 4-cylinder, DOHC, 16-valve EFI
JB-DET - 660cc 4-cylinder, DOHC, 16-valve EFI turbo
CB23 - 1.0 litre, 3-cylinder, SOHC, 12-valve carburetor
CB60 – 1.0 litre, 3-cylinder, SOHC, 6 valve carburetted turbo
CB70/80 - 1.0 litre, 3-cylinder, DOHC, 12 valve EFI turbo
EJ-VE – 1.0 litre DOHC, 12 valve EFI
EF-JL – 660cc 3-cylinder, SOHC, 12-valve EFI turbo
EB – 550cc, 3-cylinder, SOHC, 6-valve carburetted turbo
Four Cylinder Engines
Daihatsu has released three different capacity four cylinders - the HC-E 1.3, HE-E 1.5 and HD-EG 1.6 litre. The 1.3 and 1.5 are credited with 66kW and around 85kW respectively. However the largest engine - the 1.6 HD-EG - produces a peak power of 93kW at 6300 rpm with quite strong torque. While these engines aren't commonly modified for extra power, they are very reliable and perform respectably.
Three Cylinder Engines
With twin cams, 12 valves, EFI, air-to-air intercooler and a (large-ish) turbo, the CB70/80 is good for 78kW at 6500 rpm in standard form! Further to this, simple boost, intake and exhaust mods can easily give another 35% power. This potent hi-tech engine was based on the early '80s CB60 SOHC carby turbo engine, which made a then-impressive 50kW.
Smaller still, the 660cc EF-JL engine uses a single cam, 12 valves, EFI and an intercooled turbo to produce 45kW at 7500 rpm. Recently, this engine was also updated with the availability of a twin cam head, but due to power restrictions in Japan peak power remains similar. The first of these extra-small turbo threes was the EB engine, which like the CB60 used a single cam and carby induction. Its power output is thought to be around 40kW.
Daihatsu doesn't offer an awful lot in the performance market, but rest assured these are tough little engines that - with a few mods - can make your commuter car cause a few surprises! In the Kei class segment, Daihatsu has their EF-DET 660cc, DOHC, 12-valve, intercooled turbo engine, which is good for the class maximum of 47kW at 6400 rpm. Peak torque is listed at a healthy 107Nm at 3600, but bump up boost pressure and you're guaranteed large percentage gains. This is the ideal power-up for your Cuore/Mira/Handi.
Another hot Daihatsu Kei classer is the JB-DET as found in the Japanese Move. This little cracker makes the same 47kW and 107Nm (though at 6000 and 3200 rpm respectively). Slip this engine in and make your locally delivered Move really live up to its name!
Another three-pot engine that touches 47kW is the 1.0-litre EJ-VE. With its high compression ratio, this little atmo cracker makes its maximum power at 6000 rpm, but offers slightly less torque than the 660cc turbo guns - just 94Nm at 3600 rpm. The EJ-VE comes fitted to the Japanese market Storia, which is essentially re-badged as Sirion for Australia. This engine will give an extra 7kW over the local Sirion's 40kW. For the ultimate performance in your Sirion, however, you're talking about the variable valve timed 1.3-litre four-cylinder K3-VE2, which spits out 81kW at 7000 revs along with 126Nm of torque. We imagine the local Sirion GTvi's 1.3-litre engine is a slightly detuned version of this, making 75kW.
The aforesaid K3 series engines culminate in the K3-VET, which - thanks to a turbo and intercooler - generates 103kW at 6400 rpm and 177Nm at 3200 rpm. This engine is fitted to Japanese front-wheel-drive YRV and the Terios 4WD off-roader and there's no reason it won't fit our local shells. Oh, and - with a bit of creativity - we imagine this 103kW ball-tearer will also fit in the snout of the Sirion - f-u-n!
Going larger in capacity again is the HE-EG 1.5-litre atmo four that's good for up to 85kW and 127Nm at 6400 and 3600 rpm respectively. The HE-EG is fitted to the Japanese market Pyzar, giving a 19kW gain over local models. It'll also power-up your late 90s Charade by the same amount. For even more power for your Pyzar or late Charade look out for the HD-ED 1.6-litre engine, which is rated at 85kW at 6300 and 140Nm.