A Powerbank that charges your phone, AND jumps start your car!

Recently, I've been getting a lot of phone calls late in the night asking for help, asking me to jump start their car. I've thought to myself, "Okay, I will help him/her jump start, but where am I gonna find a battery at this hour?"

Furthermore, believe me or not, I'm too stingy to buy myself a set of jumpers. I then came across the perfect solution/product for the above situation. A jump start battery pack that is small enough to carry around in my boot, to help others in standby mode.

Presenting you my PORTABLE JUMP START POWER BANK!!!
I believe that every home mechanic, tom dick and harry, and a person in each family should have one of this stored at home on full charge or kept in their boot along with their emergency tools as it may or may not come in handy over time.

This item has the capacity of 12000mAh, as high as some of the top manufactured powerbanks around. It can be used to :


- Charge anything from your Iphone, android, phones, Ipad, Ipod and even your laptop! (12000mAh)
- Jump start your car from a totally flat battery. Yes, TOTALLY FLAT (up to 400A peak power burst)
- Use as a torch light. Flash and Strobe available.


Specs are as per below :
- 2A Power output, 400A peak power.
- 1000 cycles
- 160 x 75 x 28mm
- 450grams
- Input 12V @ 1A
- Output 5V @ 2A, 12V @ 2A, 19V @ 3.5A
- Full charge time : 3 hours
- Starting Current : 200A
- Peak Current : 400A





I've given this product some testing and results are as per below :

-Car able to start even with battery terminal disconnected from battery.
-Charges my Samsung S3 as fast as my 11400mah powerbank at 2A



I have this in stock at RM450.00/unit with a three month warranty against any manufacturer defect. You can contact me at 012-9096996 if this interests you. A carrying pouch is also included with this item. Alternatively, you can also get this from EA Autoworks in Bukit Jalil (http://www.facebook.com/eaautoworks).


Cheers!

Elton

HEAT Management Part 2

Hello again guys. It seems that my previous post had numerous verbal feedbacks and it motivated me to continue blogging this time round; EXHAUST WRAPS.

My last post was about reflecting heat, and this post will be on heat insulation of our EXHAUST SYSTEMS to reduce engine bay temperature and increase exhaust velocity.



WHY do we need or want to insulate heat?
Exhaust wraps, or ceramic coating are used to keep heat in the exhaust pipes. We all know that exhaust gasses would be the hottest "object" in our engine. Exhaust gas is produced from our engines and enters into the exhaust manifold, exhaust pipes and exits from the rear end of a car.

Having said the journey of the exhaust gas as per above, it travels through pipes and heats up the exhaust pipes itself. Heat from the exhaust will escape through both conduction and radiation as air in our engine bay is cooler. I once said in my previous post that heat travels to a cooler place from a hotter place.

As the exhaust pipe gets hot from the gasses, it loses velocity as you need to know that heat travels faster than cold air. What we want to do is to keep the exhaust gasses as hot as possible in the pipes so that it travels out of the car(rear muffler) as fast as possible, reducing pressure and increasing exhaust scavenging at the same period of time.

*Tips : Meaning of exhaust scavenging : gas travels through the 4 runners of the exhaust manifold so fast that it is actually SUCKING AIR/EXHAUST GASSES out of the engine cylinders itself!!

When we insulate heat, keeping the gas in our exhaust pipes, less heat escapes through the pipes itself thus reducing heat in the engine bay and exhaust tunnel(undercarriage). This way, the heat form the exhaust pipes will NOT :

- Heat up or harm any electrical components
- Heat up any rubberized or plastic parts in the engine bay
- Heat up our radiator/aircond condenser
- Helps alot if your air filter is located close to your exhaust manifold

Going back to the velocity subject relating to turbo engines, the faster traveling exhaust gas will aid in faster spool up times, resulting in increased torque of a turbo engine. A turbo blanked for the turbine housing can also be used to keep heat in the turbine housing.




Below, are pictures about four different methods of insulating your exhaust system.

TURBO BLANKET

Comes in various sizes to suit different turbos. The below picture shows one being used on a top mounted turbo. God knows what would have happened to his engine bonnet/hood paintjob or exhaust valve seals if one wasn't use. He may have a couple of power steering fluid or aircond gas hose running nearby too!

Exhaust gases can go up to 1200degrees celcius on a turbo engine and trust me, you can light a cigarette up by putting the un-lit end on the turbine housing.














EXHAUST MANIFOLD HEAT SHIELD

This is an OEM one. Comes on most cars.
Does pretty much of a good job if you ask me.









This is an aftermarket one. Can be done DIY. Talking about this picture, notice how close is the cam angle sensor to the exhaust manifold?

EXHAUST WRAPS
There's a variety of qualities for these wraps. The first picture on your right here you see is a normal fibre wrap. You have to soak these in water prior to wrapping for a tight fit. These don't really last over time. They tear. And hey, broken fiber, if touched, it's gonna be real itchy.

We shall call this the "good" exhaust wrap. The most effective way of insulating exhaust heat from your engine bay.keeping gas in. Some say that you can even touch it with your hand when the engine is running.


“The Good” exhaust wrap is a basic fiberglass exhaust wrap that has an operating temp up to the 1,000 degree F mark at best. It can take some intermittent temps higher than that but how often do exhaust temperatures fluctuate? They get to point and stay there. Wear gloves when wrapping to avoid itchy hands and it helps to wet the exhaust wrap first. Final note: wrapping pipes is a difficult job you do not want to have to re-do it any time soon. Take your time and do it right the first time with the proper exhaust wrap for your application. You can buy these at RM70/roll if I'm not mistaken.

If the exhaust wrap is not one of the brand leaders (DEI, Thermotech, Heat Shield) then the exhaust wrap has probably not been treated to increase the insulating capabilities. You will notice that the big companies do not offer a white exhaust wrap. This is because when the exhaust wrap is treated it turns more tan or brown it can also be died black at this time but the color is typically not as vivid black. The black color can be intensified with the use of the silicone spray coating. This exhaust wrap is good to around 1500 degrees F realistically. This exhaust wrap will work for most applications. It is still a fiberglass based product so wear gloves and wet the exhaust wrap. When the exhaust wrap is dry, saturate it with the silicone coating.

 Titanium Wraps. The best. The bomb.

This Titanium exhaust wrap is awesome. They solved a lot of issue that arise from exhaust wraps with this product. It is not a fiberglass based product but rather made from a pumice. Where fiberglass comes from sand this comes from volcanic rock. The Titanium exhaust wrap is easy to wrap, there is no need to wear gloves and you do not need to seal it with the silicone spray…plus it looks sweet! Like carbon fiber. It will handle 2000 degrees all day long and will remain flexible while maintaining its cool looks. Yes, it costs more but the best stuff always does.

This is a sample pic of the titanium wrap used on an evo engine with long runners. It may or may not be close to the radiator and hood. Looks sweet, aye?

Can also be used at the bottom of your car until the exit of your exhaust system. Comes with proper hose clip and no not need soaking in water to wrap.






I will bring a couple of these in to sell and they should cost in a range of RM200-300 for 2inch x 50feet rolls. Kindly keep in mind that anything below RM200 for this particular product(DEI Titanium wraps) with the same length may or may not be a fake. So, beware :).




Cheers!!

HEAT Management

Someone used to tell me. HEAT is the number one enemy of our engines, followed by friction; or whichever comes first.

This time, I've allocated some time into typing this post, dedicating this post to heat management as I think it's pretty much important to touch this topic because most drivers are not aware of the importance of keeping heat where it should be, and not to mention the importance of the cooling efficiency of an engine.

How does heat travel if you ask me;

Heat is emitted by a couple of ways. Conduction, convection and radiation. Heat is everywhere. Dive in a swimming pool, or walk barefooted down the road at 12pm and you will understand what heat transfer is. Heat always transfer from the hotter side to the cooler side of an object, or simply air.

Conduction
This is surface heat. Heat transfers through contact of two objects, like boiling a kettle. Touch something hot like your warm cup of coffee and heat is transferred to your hand.

Convection
Heat moves by liquid or gases.Heat expands and rises as it is less dense. That's why we have ventilators at home.

Radiation
This would be electromagnetic waves. You do not need UV or light to produce and transfer heat. Heat can travel through air, space and vacuum via this method and this particular method is what we are going to discuss on at the bottom of this post. Proof being a bbq pit, you don't have a bright light, but you can still feel the heat if you're standing nearby. This kind of heat transfer is also called infra red heat.


How to reflect/eliminate heat radiation :

Reflective surfaces. Chrome, gold, you name it. An experiment can be done with two cups with hot water. The first cup bearing a reflective surface inside it and the second cup not having any reflective surface inside it. Pour warm water, and you'd realise that the SECOND CUP takes a LONGER TIME to heat up.



This particular post will be on REFLECTING HEAT. I will talk about heat barrier and insulation another time.


Why reflect heat?

First thing's first, we all want certain parts of our engine to stay cool, as an engine performs best when it's getting cold air. CAI aka cold air intake is a good thing, but that, can be improvised.

Technology has gone so advanced that people are no longer insulating their intake pipes with exhaust wraps, but with heat reflective tapes used in space technology.

Heat reflective tapes is to be used on parts where we don't want hot air heating that particular component up. The tape is also to be used to protect certain components from engine heat.


For example :

Improvising exhaust heat shield
Here, you have a DIY heat shield, or at least I think it is an exhaust heat shield(pic taken from web). The tape is to be used on the BOTTOM side(facing the exhaust manifold) and not the top side of the heat shield as the exhaust pipes are emiting heat through radiation. The gold surface reflects it away from the heat shield. If you put your hand just above the top surface of a heat shield, you can still feel heat radiating as the heat shield itself gets soaked with heat. Stick some tape under the shield and you'd feel less heat on top of the heat shield.

Improvising Air Filter Heat Shield
Let's say you also made a heat shield for your intake system, an aluminium heat shield. You want to tape this up to reflect any heat surpassing the heat shield or heating the heat shield itself up. Keyword, REFLECT HEAT, not to forget.

Intercooler pipes(cold side) and air filter intake hose(for n/a engines)

Whatever that is cooler than the engine bay itself, should be wrapped to reflect heat. You don't want heat heating up the pipes itself, thus heating up the air inside the intake pipes. DO NOT, I repeat, DO NOT wrap the pipe that is between your turbo and intercooler as that is the HOT side of your pipe, and that pipe itself will radiate heat to cool itself down. No one would tell you this.
 Keyword, INFRARED RADIATION.

Firewall
Having a hot cabin? Nuff said about this picture. Keep, heat, OUT!

Radiator Top Casing
This would be specially for turbo cars if your TURBINE HOUSING is too near the radiator. If it is not, the radiator itself radiates heat to cool water down.

Cam Cover
If you have real high headers like this, or a top mounted turbo. You don't want heated up engine oil or worse, fried valve seals.

Protecting Electrical Components

You can also use this tape to shield out heat that kills electrical components. Kindly take notice on the below picture of an Evo engine having such huge long runners emitting heat to the cam sensor just on the right side of the picture. A heat shield is installed along with gold tape to "save" the sensor from getting fried by exhaust heat. Most Evo owners know about this. Their OEM exhaust manifolds come with a heat shield. The moment the upgrade to long runners, this problem occurs. Wrapping the runners or coating it with ceramic will also help.

 
                 













There are a couple of other places you can use this tape if you're creative, such as :

--> Aircond pipes
--> Exhaust Tunnel
--> Undercarriage just above rear muffler/midbox
--> Car roof if you're crazy enough
--> Electrical Components
--> Bottom side of your car hood


All the above items are wrapped with you Design Engineering's Reflect-A-Gold heat reflective tapes.

Reflect-A-GOLD is a metalized polyamide polymer laminated glass cloth with a high temperature pressure sensitive adhesive for use in extreme temperature swing environments. It is lightweight and easy to apply and remove.

Highly effective material for firewalls, fuel cells, engine covers, under hoods, engine compartment, bulk heads, seat bottoms – anything or area that needs protection from heat.

• For firewalls, bulkheads, engine covers, floors, seat bottoms & more
• Capable of handling continual temperatures up to 850°F
• Resists UV degradation for long-term performance
• Virtually NO clearance needed
• Adhesive protected by a release liner rated up to 325°F
• Light weight and flexible-Trim to size

My next post should be about exhaust heat management, aka heat wraps when I have the time to do it. Till then, hope you guys enjoy reading! Many thanks!

And by the way,

I have personally brought in some of this to sell as I had some enquiries even before posting this thread.

Below are the details :

Package includes: 2inch x 15feet roll OR 2inch x 30feet roll

Price:
2inch x 15feet roll - RM230.00
2inch x 30feet roll - RM430.00

Dealing method: COD Sunway/Subang - After Office Hours at night. Not appropriate to do during the day time.
Postage add RM15.00 for Semenanjung. Sabah/Sarawak RM25.00

Location of seller: Sunway/ Subang bhp ss14

Contact method/details: 012-9096996

Cheers,

Elton