1.3 = 1.5

[monacular]

I'm thinking of buying a yaris but i read in a magazine that the 1.5 litre engine is acctually a resized 1.3 Does anyone know anything about that?

[jaxx]

it is possible

could be the same block but just be bored out to different displacements?

[Yarisboy]

feasible

[SuperRetard]

Hmmm... I know my 1.3 has a proper Jap-style reverse cylinder head (by that I mean the intake is at the front, the exhaust is at the back). I know the T-sport 1.5 is like that too. But what about the 1.0? Do the exhausts exit on the drivers side or the headlights side?

[monacular]

I found this site:

TOYOTA GT TURBO

It's about starlet gt but it has informations about all toyota engines.I found 1.0 and 1.3 engines but i haven't found the 1.5.Can anyone tell me the name of the engine?

Thanks for the help :D

[jaxx]

Hmmm... I know my 1.3 has a proper Jap-style reverse cylinder head (by that I mean the intake is at the front, the exhaust is at the back). I know the T-sport 1.5 is like that too. But what about the 1.0? Do the exhausts exit on the drivers side or the headlights side?

ya right the t-sport has the intake at the front

the 1.0 is the otherway round with the intake on the back and the manifold comes out the front end

[SuperRetard]

Well that settles it in my head then, by the law of "my mate down the pub sez", I decree the 1.3 and 1.5 toyota engines to be of a common design base. (Like Fiat FIRE units 999cc, 1108cc, 1242cc or Ford Pintos, Colognes, etc...) :P ;)

[yvvan]

The 1.5 engine (1NZ-FE) and 1.3 engine(2NZ-FE) share the same basic block-design (NZ).

However, many of the internals are different, like the cranckshaft (longer stroke hence the greater displacement), there may also be differences in things like the layout of oil and water galleries, the type of cylinder liners (sp?), other conrods, pistons, bearings, block strenght, fuel systems, etc...

The early 80's AL20 has a 2A engine which is the same basic design as a late 90's AE111's 4A-GE 20 valve engine, that's 20 years of development and evolution on the same design (and one hundred horses more!!!).

The 1.0 comes with the 1SZ-FE engine and the Japanese market also has a 2SZ-FE (1.3) equipped Vitz in addition to 2NZ-FE equipped one. The 2SZ-FE comes with the Toyota Intelligent Idling Stop System.

HTH,

yvvan.

[gerard]

you might want to look at the turbo 1.3 in the Daihatsu. It shares DNA with the 1.3

[yvvan]

Yep, Toyotas and Daihatsus share a number of components as Toyota is the mayor shareholder in Daihatsu.

The Daihatsu Charmant sold in Europe in the 80's was actually a rebadged E7 Corolla equipped with the 2T (and later on the 4A) engine. In Asian markets today some cars are available as either Toyota or Daihatsu badged.

yvvan.

[toyotasera.co.uk]

I'm thinking of buying a yaris but i read in a magazine that the 1.5 litre engine is acctually a resized 1.3  Does anyone know anything about that?

Curious to why this actually matters. Its not as if some Fred in a Shed did the work. Toyota did!

Virtually all engine series are bored or stroked versions of other engines in the range, or are a modular design so you can add cylinders easily - eg the BMW M3 Evo (straight six) engine is half the McLaren F1 engine (v12)

[monacular]

I'm thinking of buying a yaris but i read in a magazine that the 1.5 litre engine is acctually a resized 1.3  Does anyone know anything about that?

Curious to why this actually matters. Its not as if some Fred in a Shed did the work. Toyota did!

Virtually all engine series are bored or stroked versions of other engines in the range, or are a modular design so you can add cylinders easily - eg the BMW M3 Evo (straight six) engine is half the McLaren F1 engine (v12)

Yes but i would liked it better if it wasn't a streched 1.3 but a totally new one (like other tsports) designed especially for that cause.

Why not putting VVTLi system in yaris?That should bring 140hp

Honda did it!

[SuperRetard]

Just adding VVTLi or iVTEC doesn't magically produce horsepower. They fill in sections of a torque curve, but they don't generally add to the peak.

I think the best way to put it is this. A 195bhp 1.8 without VTEC would be utterly gutless, unable to move off idle. VTEC gives a cam profile suitable for... oh I'll hsut up before I baffle myself!!

[yvvan]

Yes but i would liked it better if it wasn't a streched 1.3 but a totally new one (like other tsports) designed especially for that cause.

It's not an all new engine: it's basically a 1ZZ-FE (the "ordinary" 1.8) that Yamaha did some engineering work (head mainly) on. Also the 1.4 (4ZZ-FE) and 1.6 (3ZZ-FE) as found in the current Corolla are based upon the same design.

Engineers don't come up with new engines overnight, they all beg, steal and borrow from other designs with some new things coming along every now and then. ;)

yvvan.