ek42 turbocharger

[bat3a]

hi all

i like my subaru 700 very much, and i like power too, can anyone recommend a certain turbo kit i can buy and install?

i got a 1983 subaru 700 with ek42 engine, it moves ok but i don't mind more.

thanks

[justyfied]

Welcome Bat3a,

It is great having a lite little car to zip around in, unfortunately what makes them lite generally means they are underpowered too. They do not accelerate like bigger engined cars but: Use the speed once you get going and try never hitting your brakes whenever you negotiate a corner ;D
The novel design of the EK42 which is a long stroke engine which makes torque gets it by but it only has 2 cylinders. Sort of like a single cylinder 500cc bike they call thumper's
This gives only the 2 exhaust pulses compared to double that for a same size 4 cylinder. couple that with the small displacement and you have an engine that would not take to a turbo all that well. It would have a severe turbo lag problem making it even worse in the immediate acceleration department.

I suspect that this is why Subaru used a small supercharger that is mechanically driven on it's Vivio.

There are some very small turbos out there but you would need to make all the manifold and pipes and oil lines yourself. Don't forget to modify the fuel and ignition systems too!

Good luck and if you want to pursue this than I will try and provide whatever help I can. However I would suggest you consider a complete motor / transmission swap from another car. I just saw picture of a car that has a 1 liter 4 cylinder from a Diahatzu swapped into a plan Jane model of Subaru Vivio. They are about the same width as a Sherpa/ Rex /700 chassis.

I forgot also to bring your attention to this thread from here on this forum:

classicsubarujusty.proboards.com/index.cgi?board=chatrex&action=display&thread=188

It shows a 2 cylinder EK23 engine which is smaller and came with a Supercharger from the factory!

[bat3a]

There are some very small turbos out

can u mention any?

consider a complete motor / transmission swap from another car. I just saw picture of a car that has a 1 liter 4 cylinder from a Diahatzu swapped into a plan Jane model of Subaru Vivio. They are about the same width as a Sherpa/ Rex /700 chassis.

well, i thought of that before but i didn't know what car engine to search for, i mean the space for the engine is small and i don't know what i could fit in there.

can you point me to the daihatzu thread, can you recommend other engines i could seek.

It shows a 2 cylinder EK23 engine which is smaller and came with a Supercharger from the factory!

this came naturally from subaru for the 550cc engines, i wish they made one for the ek42.

thank you for answering man ;D

[justyfied]

Ooops - my Bad!-- I was wrong .. .it is a Nissan Figaro 1 liter. The website only shows a picture. It says he lives in Jamaica even though the website is based in Japan .. .. but is in English. It is a simple little site but here is the link:

keicar4life.blogspot.ca/

Since there was no real info I didn't post it here. Besides, I didn't want to mention it but I had planned on swapping the motor and trans from a Subaru Justy into my Vivio RX-R once Iam successful in blowing up the engine
From what I can see I would have to make room in the frame rails width of just 1.5 cm. however the top of the engine would stick through the hood and it would be very tight between the firewall and the radiator!

This Figaro looks a little smaller. most transmissions are too wide and you really should look at using the engine with the trans it came with for simplicity.

Why don't you look into importing the Super Charger from a Subaru Vivio RX-R? they can be had for a reasonable amount of money and the Vivio mounts might be a good place to start when mounting it up.
Only thing is you would need to convert to the newer style belt. You would need the pulley off the crankshaft as wellas the idler pulley.

If I had to do a Turbo I would get a used one from a Volkswagen Golf because they are re-dilly available and because Iam Cheap!
However they would still be a little on the large size for a 2 cylinder engine, If you are like me and only care about top speed and naught a care about drivability or fuel consumption than this is the one.... called a KO3 3rd one down on this link;

www.ebay.com/bhp/beetle-turbocharger-vw


Here is a Turbo that would be TOO Small!

www.way2speed.com/2012/08/small-engine-turbo-charger-rhb31-vz21.html#axzz2ifPJUTJc

[sikari2015]

I'd strongly recommend using an AMR300 or AMR500 Supercharger instead of the turbo. The 300 is relatively cheap and would be reasonably easy to fit. You might need to study the standard carby really well and possibly change it for a blow through designed carby. The "standard" EK42 carby is an engineering masterpiece and I'm not sure how forced induction will affect it, but I want to find out myself.

www.kemotorsport.com/


More info on the chargers
www.autospeed.com/cms/article.html?&A=110294

[bat3a]

@justyfied

from a Subaru Justy into my Vivio RX-R

i thought vivio had a better one!

This Figaro looks a little smaller.

and non-existing in my country

this is the one.... called a KO3 3rd one down on this link;

this 500$, and is not cheap here, i think swapping an engine coasts much less!

searching ebay i found turbos as cheap as 150$, i read through the internet that a turbocharger could bust your engine, is that true?

Here is a Turbo that would be TOO Small!

certainly two small , it says that it could used with a buggy, did they mean vw beetle!


sikari2015

but I want to find out myself

so you will install one on your car?

i don't think i can play with the carp. as i'm not a mechanic my self that's why i don't think of installing a supercharger and just looking for a turbo, all i need is a little more power, maybe 10k/w more only.


does an air intakes give any power with this engine, like these here:
www.knfilters.com/cold_air_intakes.htm

[lincolntbird]

That is one heck of a too small turbo . A snail would be bigger .

[justyfied]

Oct 26, 2013 1:25:27 GMT -4 bat3a said:

@justyfied

from a Subaru Justy into my Vivio RX-R

i thought vivio had a better one!

Yes, for its size--all 660cc's it is incredible-It has all the bells and whistle's (dual cams and 4 valve/ cyl, distributorless ignition, supercharged and intercooled) however the supercharger is a good size for the street and the intercooler is big enough but not awasome! I have heard rumors of these things being tuned up to make almost 200 hp at the flywheel and I believe that, since according to my calculations a stock RX-R EN07X makes about 90 hp at the flywheel!

But as the saying goes .. .. there is no replacement for extra displacement! and at almost double the size a 1200 cc Justy engine would end up being able to support alot more power once tuned up!

and non-existing in my country


this 500$, and is not cheap here, i think swapping an engine coasts much less!
I only posted that ebay link to quickly show the item, Where you find your deal is probably privately or from an auto wrecker.

searching ebay i found turbos as cheap as 150$, i read through the internet that a turbocharger could bust your engine, is that true?

There be lots of info out there, and lots of fluff too!
There is another saying. .. .. Guns don't kill people ... people do!


certainly two small , it says that it could used with a buggy, did they mean vw beetle!

noo, more like garden buggy!


sikari2015

but I want to find out myself

so you will install one on your car?

i don't think i can play with the carp. as i'm not a mechanic my self that's why i don't think of installing a supercharger and just looking for a turbo, all i need is a little more power, maybe 10k/w more only.


does an air intakes give any power with this engine, like these here:
www.knfilters.com/cold_air_intakes.htm

[sikari2015]

Once I have my car and I've stripped, cleaned and possibly replaced rings and seals to stop the thing pumping oil through the air cleaner and smoking like a chimney I'll definitely be looking at supercharging using either an AMR300 or AMR500.
The belt driven option would be fairly simple to install in the circuit with the alternator, I'd imagine. It's also a fully self contained unit so doesn't require alteration of exhaust to power the turbo nor oil lines to cool/lubricate one.
With such a small engine and only being 2 cylinders as already said Turbo lag would be quite bad, which tells me supercharging is the way to go.

On the cost front, even though the turbo may only be $150, you're looking probably the same again to get the modifications to the exhaust manifold and oil lines for installation.

The boost you can get from a turbo is greater than supercharger, and on an older EK42 that hasn't been fully rebuilt with new parts you run the risk of too much boost making things go bang.

Supercharger boost is very easy to modify, simply by changing the pulley size. Smaller pulley less boost, larger pulley more boost. Just like gears on a bicycle. Even adding as little as 2PSI makes a sizable difference to power.

[bat3a]

sikari2015
looking forward to see your experience in installing the supercharger , and i hope i could manage to find the supercharger in my area.


BTW:
if anyone had this car, what mileage i should be expecting? i get around 14 km/l, and i think it is low, i read before that i can get around 22-25 km/l, is this accurate?