First wash of 2015

New pics. Also coming soon, a video with goPro :)

Hey guys,

So even if the power upgrade hasn't come yet (on it's way though, I just require more parts as there's always some improvement to be made from what was originally intended for turning up the boost) , I've taken the car to the drag strip for a second time.

I've managed an improved ET on the 1/4 mile pass (lower by 0.814 sec from last september) by just way of better traction and a fully broken in clutch.

You can check out the following video where I've made some notes about the current stats of the car.


I'd say it runs pretty neat for such a low lever of power, however it's not the drag strip that the car feels most comfortable on, but rather hauling ass through windy roads at high speeds :D

+ pictures from the event

Drag times
 

Hi what was your time and speed for 1/4 mile ?

Check the description of the video on YouTube.

car still alive?

Sure thing, working on a hybrid turbo setup for increased boost range and some added mods to support 100 hp (or close to it).

For now I'm limping N/A without an exhaust. I never thought an engine so small could make so much noise lol.

What do you do to the turbo? bigger comp. wheel?

A taller wheel (keeping the same inducer/exducer diameters) with a newer blade design technology, along with a high heat resistance thermal wrap for the exhaust manifold will hopefully reduce spool time a bit (boost threshold currently sitting at half the rpm range measured on 4'th gear).

I've also considered a turbo blanket, unfortunately there's not so much space for it to fit. Also, thermal coatings for exhaust in Europe don't seem to be good enough to support a petrol engine EGTs, so that would be a waste of money.

This is how the engine sounds without a muffler :)

Hybrid turbo almost ready.

- Repair kit
- Machined-From-Solid (MFS) compressor wheel with 11 fins,custom built. Inducer/exducer diameters are the same however the wheel is taller and lighter
- dynamic balancing
- retrofit AR .35 turbine housing straight from Honeywell Garrett

And pics!

I've registered the car on a contest held on facebook.

If y'all like the vehicle and would consider voting for it please like the following picture


Cheers!

Stage 2 not ready yet, however I have added a rev meter with shift light. Plans are to complete the build by the end of this autumn.

Giving you more information for 2008 Daewoo Matiz Turbo by Boost Freaks from vortech supercharger actuator.

Redline? What's that? ;D

A brand new setup is underway as we speak. I have kept the IC, BOV and dashboards intruments, the rest will be replaced by better/more power capable parts. So far we have:

- Hybrid Garrett turbo
- new exhaust manifold with added high temp ceramic coating
- 250 cc injectors (good for about 100 crank hp)
- fittings, hoses and whatever else necessary

Both turbo and exhaust are spec'd to be capable of 150+ crank hp.
Other updates as they arrive in final form on the car.

First start with the hybrid turbo. Still lots to do but at least the car can move again on its own wheels.

First run with the new setup on stock injectors. Turbo delivers greatly so it leans out like crazy.

Car will receive fueling upgrade and a custom tune to fit this new frankenstein setup.

Good to see the matiz is still alive and even getting better and better :)
Very nice whistling sound btw.
Do you have pics of the exhaust? I guess its fully custom from front to back, right?

Exhaust is not yet finished but yeah, fully custom stainless steel. (for now only the downpipe is fabricated),

Primary turboback will be 50 mm, catless, with Borla mufflers.

Add to that the wastegate exhaust, open 35 mm pipe.

With the open wastegate pipe, I've estimated this setup to flow up to 200 hp so I have enough headroom for future increases in power.

The whistling sound is from the billet compressor wheel and yeah, I have to say it sounds even more awesome in real life!

So you're saying the sound changed by replacing the compressor wheel to one that's billet?

Yes. The stock wheel (cast, 5 blades if I remember correctly) had no whistle at all. This one was custom built to fit my turbo and it's pretty much the same design that you find in newer generation turbos.

Something to do with the wheel design and harmonics (not necessarily the number of blades).

So what pressure you doing now ? is the IC not to big for this setup ? is there any lag ?

For now it's set to about 7 psi.

TO start with, I'm aiming for 100 hp, I think it will be achievable with about 10-11 psi.

IC is pretty much spot on for this setup, it's actually the smallest aftermarket IC I could find.

Turbo seems to spool earlier than before, which used to come into boost at about 3200 rpm measured on fourth gear.

We'll see exactly after the tune, but it seems that the results I wanted before this setup have been achieved: more flow at the same psi while decreasing spool time.

This is a urban legend that still sticks in the turbo mod community. If you calculate how much air in just a one second wanders through an engine, you realize that an fmic with a couple of liters of volume takes absolutely not a lot of time to get filled. Of course, too big is still possible - but then it would have to be a really really big fmic.

Example to show the dimensions I am talking about (efficiency losses are neglected here to keep it simple):

1 liter engine = 0.5 L of air per rev.
0.5 bar boost = 1.5 times the amount of air
@ 3000 rpm = 50 rounds per sec.

50 rps * 0.5 L * 1.5 = 37.5 liters of air per second

You can see that even an intercooler with about 4 liters of volume gets filled in almost a 10th of a second here. And I guess his intercooler isn't even that big :)

I read you have calculated that safe boost is 4-5psi do you not worry about motor issues ? More interesting is it still complying with emission standards like CO/CO2/HC have you test those ? as I seen removed first cat don't know only why if can be done nicely with first and second cat ;)

I've found another matiz from poland running 15 psi for more than 50000 km on stock engine and gearbox.

Low compression ratio from factory helps achieve that. It has 9.3:1.

Both cats were deleted however emissions are not an issue, I can bypass that, this exhaust setup was made to handle big power instead.

Intercooler specs from the manufacturer:

For vehicles with displacement at 0.8-1.5L
．Dimension: 430*135*51 mm
．Weight: 2.6KG
．Diameter of Connector : 50 mm (O.D)

Have you taken injectors from another stock car or are they custom ? My idea was to get IC from astra G 1.7TD ;) , turbo will be gt15 from VW polo AFM motor code

Injectors are stock from a 2.0 NA Opel engine.

They were test fitted with a modified fuel rail then removed. With this upgrade I can swap them to any bigger size injectors to suit the power needs in the future.

They will be put pack before when ECU tuning starts, for now I'm running the factory ones.

Do you know how efficient are matiz injectors ? how many ccm they can achieve ?

There is no data for them online, neither in the service manuals nor in the shop catalogues.

But since they struggle keeping a good AFR even with 80 hp, I would estimate around 170-180 cc at a flow rate bigger than 80%. They are really small.

-Turbo mounts done.
-Air intake and BOV placement done.
-Turboback exhaust also done (catless stainless steel with a single Borla muffler)
- Much fiddling around has been made in order to obtain the best positioning for hoses, fittings etc.

The car leaves tomorrow for the ECU tune shop for installation and setup. Hopefully nothing blows up on the dyno and we reach the desired target ;D

Photos, photos , where are the photos :D

Got around to downloading some :)

BOV was rotated after taking the pics.

The underside of the exhaust is nothing special, just a 50 mm straight pipe.

I didn't get a chance to make a video for the new exhaust sound because my phone battery was dead at the moment, but I'll make some videos after tuning and post them on YT as usual.

Is it possible you can share tuned file , from what I could gather you'll be using EMU from ECU Master , or something else ? Would help me a lot If I could compare files and see differences ;)

The software part will be done using VEMS standalone ECU, starting from scratch. Installation and tuning will done by a specialized team. We'll see afterwards.

Hmm... Interesting choice with ECU , It's better to connect to this one than the last one Gen Board/Manual/Comm Hardware - VEMS wiki www.vems.hu ;)

Your logic is flawed it's 25.26 L/s