Daihatsu Engine

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 Engines
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.

[b][size=12]Daihatsu Fours...[/size][/b]

Daihatsu’s most common range of four-cylinder engines is the H-series.


The most powerful in the H-series is the HD-EG 1.6-litre SOHC, 16-valve engine. This engine – as fitted to the mid/late ‘90s Japanese market DeTomaso Charade – generates an impressive 92kW peak at 6300 rpm. Maximum torque is 144Nm at 4000 rpm.

The next step down is the HD-EP 1.6-litre engine as fitted to the Daihatsu Pyzar. In Japanese form, this SOHC, 16-valve fuel injected motor (very similar to the DeTomaso Charade’s) makes up to 85kW at 6300 rpm and 140Nm at 3600 rpm. In Australian guise, the Pyzar’s 1.6-litre four makes just 67kW and 126Nm.

Note that the local Daihatsu Applause also uses a derivative of this engine – the HD-E – and is good for up to 77kW.

The first-generation Pyzar and the contemporary Charade were also available with a HE-EG 1.5-litre SOHC, 16-valve engine that was rated at 66kW and 119Nm. Again, the Japanese version is more powerful – the J-spec Pyzar HE-EG 1.5-litre cranks out up to 74kW and 128Nm.

The smallest member of the H-series line-up is the HC-E 1.3-litre engine, as fitted to the G100/G200-series Charade. With a SOHC, 16-valve head and EFI this engine makes 62kW. A slightly revised version – the HC-EJ – is fitted to the local Terios, which is rated at 61kW.


In Japan, the current Daihatsu Terios and YRV are available with a 1.3-litre turbocharged engine. The 1.3 DOHC, 16-valve intercooled turbo K3-VET engine uses a 8.5:1 static compression ratio and achieves up to 103kW at 6400 rpm and 177Nm at a surprisingly low 3200 rpm. We hope to see this engine in the local YRV soon.

A high-performance atmo version of the K3 1.3-litre – K3-VE2 – is also available with variable cam timing. In the top-line Japanese Storia, this engine spits out an impressive 81kW at 7000 rpm with 126Nm of torque. The same engine is used in the locally delivered Sirion GTvi, though it’s rated at a more modest 75kW.


Also new is the miniscule 660cc four-cylinder turbo engine in the Daihatsu Copen convertible. The Copen’s JB-DET 660cc uses an 8.2:1 static compression ratio and an intercooled turbocharger to help generate 47kW at 6000 rpm and 110Nm at 3200 rpm (in Japanese spec).

Note that the same JB-DET engine in the Japanese Move Custom (and others) makes a less thrilling 100Nm at 3200 rpm. Interestingly, the Japanese-market Daihatsu Move is also available with a turbocharged EF-DET 3-cylinder engine – which we’ll come to...

[b][size=12]Daihatsu Threes...[/size][/b]

Amongst all of the performance 3-cylinder engines available in Japan, Daihatsu’s are amongst the most popular – relatively simple design and great strength are the big attractions.

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The all-time 3-cylinder bruiser is the CB70 1.0-litre as fitted to the Japanese market Charade G100 GT-ti. The CB70 (a development of the earlier CB60) sports a DOHC, 12-valve head with multi-point injection and an air-to-air intercooled IHI turbocharger. These features give the one-litre motor 77kW at 6500 rpm. Peak torque is 130Nm at 3500 rpm.

The earlier CB60 1.0-litre turbo three – as fitted to the G11 and G100 Charade turbos – uses a SOHC, 6-valve alloy head with a blow-through carburettor. No intercooler is fitted. In Japanese-spec this motor made up to 59kW at 5500 rpm and 118Nm at 3500. Australian-delivered versions made 50kW at 5500 rpm and 106Nm at just 3200 rpm.


Using the same 1.0-litre displacement is the current EJ-VE engine as fitted to the Japanese Storia (essentially a rebadged Sirion). Using a DOHC, 12-valve head this naturally aspirated engine makes 47kW at 6000 rpm and 94Nm at 3600 rpm. Note that the EJ-VE engine in the Australian Sirion, Cuore and new model Charade is rated at only 41kW and 88/89Nm.
[url=https://servimg.com/view/13851055/116][img]https://i.servimg.com/u/f85/13/85/10/55/2131_610.jpg[/img][/url]


The rest of the Daihatsu performance 3-cylinder range uses a 660cc swept capacity. Let’s take a look at a selection...
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The late ‘80s 660cc EF-JL engine uses a single camshaft, 12 valves, EFI and a tiny intercooled IHI RHB51 turbo to produce 47kW at 7500 rpm and 92Nm at 4000 rpm. This design has recently graduated into the EF-DET DOHC, 12-valve turbo with an 8.5:1 static compression ratio and producing 47kW at 6400 rpm and up to 107Nm of torque at 3200 rpm.

For interest's sake, back in 1985 Daihatsu introduced its 550cc EB turbo engine using a blow-through carby (like the 1.0-litre CB60). This very simple engine (available in Japan only) made around 38kW and 78Nm – not much but it was a showing of things to come!