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Discussion Starter · #1 ·
This is general information that I ported over from articles I wrote on my old forums and most will pertain to AFTERMARKET upgrading to our cars.

First we will start with a small FAQ that I have put together that i hear often.

Can I Turbocharge my car?
Short answer, yes, you can turbocharge almost any car. It will be much easier if there is a turbo manifold produced for your car, but you can always go custom. The extent of the system you setup on your car is only limited by how deep your pockets are.

How much will it cost to turbocharge my car?
It really depends. I would recommend going with only NEW parts and possibly a re manufactured turbo (as they sometimes exceed new turbo specs and are less $$) It also depends on how much power you want to put out.

If your not looking for much power, a 4-5psi setup without an Intercooler and a small turbo will suffice. This system for I4, v6, v8 will be at the low end of the price spectrum around 2000$+ range

If your looking to tear up the track, push 20+ psi with a BB turbo, pricing would probably be up there in the 5000$+ range

My best recommendation, is spend the money and do it right, the first time.

Which turbo should i get?
Depends on the power you wanna push, how you want the car to respond to your foot mashing the pedal, and your budget.

Generally
small turbos = less high end power, more low end power, fast spool

Big turbos = less low end power because of lag, more high end power, slower spool

Ball Bearing CHRAs = more efficient than thrust or journal bearings, faster spool

Turbos with smaller (T3) turbine housings and bigger (T4) comp housings = best of both worlds. you typically get pretty good spool times, and have a good power range from mid-high.

What size Intercooler should i get? Bigger is better, right?
The size of the Intercooler will also depend on your power goals. I would recommend gettting an Intercooler that will be efficient for a bit more than your power goals (ie, if your planning on 300hp, get an IC good for 350hp)

Bigger is not always better. If you get a HUGE Intercooler, and plan on low power numbers, you will lose more pressure through the system than you would with an appropriately sized Intercooler.

Also, when looking for an Intercooler (if your not buying one from me) i would highly recommend Bar and Plate style over the old finned style. I would also suggest an Intercooler with cast end tanks instead of welded.

Do I really need to spend all the money upgrading my fuel system?
YES, YES, and YES.

Fueling is the most important thing in turbocharging your car. Think about it, when you attach a turbo to your car, you are now pressurizing the air that goes into the motor (pressurized air= MORE air) With more air you NEED more fuel to achieve the power increase and not damage your motor from a LEAN condition.

In some cases, you can get away with rough tuning by using stock injectors and an FMU to raise fuel pressure on a certain ratio per lb of boost.

Although, i would recommend proper tuning with some type of fuel management (AEM F/IC) and aftermarket Fuel Pressure Regulator, bigger injectors, and if needed, a higher flowing fuel pump.

What does the CFM or lb/min mean?

Simply put, how much air the turbo can flow.
An Example is that a super 60 can flow 35 lb/min, and a t3/t4e 50 trim can flow 46 lb/min. This simply means, the 50 trim is bigger, can flow more air and will result in more power.

Some turbos will be listed in CFM (cubic feet per min) to convert lb/min to CFM, use the following calculation as a base.

lb/min / .070318 = CFM
35 / .070318 = ~497cfm, the turbo would probably be listed as a 500cfm turbo
 
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Wow thanks, I feel like the scarecrow on wizard of oz after he got his diploma. Great info
 

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I was reading around on forums today and I came across electronic boost control using a solenoid to alter the PSI the wastegate sees. From what I got out of it, basically you trick the wastegate in to staying shut past the point it would normally open (defined by whatever spring is inside). What I'm wondering is, what is the max PSI you could produce with this method before other parts of the system would fail. Also, since I haven't really ever dealt with turbo systems in real life, I was wondering what you would need to upgrade if you wanted to do something like this. I know there is no straight forward answer, but are there general guidelines that dictate the size intercooler, intake and exhaust diameter size, fuel injection system, that you need for specific increases in HP? Assuming use of the wastegate that everyone talks about on this site, I was wondering if you knew, or had some links to forward me to, about any of this stuff.

Just trying to wrap my head around everything, and it's always easier for me to understand things if i can have apply conceptions to solve a certain application/problem.
 

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Hi,
I recently picked up a Veloster Turbo, I was wondering where in the engine I could pick up the amount of Boost/Vacuum the Turbo is generating. I was thinking of installing a meter so I can get a reading inside the car. I would usually reference the Hyundai Service site but they don't appear to have all the parts of the Shop or ETM manual listed yet. Any and all help would be appreciated.
Thanks,
Ron
 

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Discussion Starter · #5 ·
sorry i missed the earlier post.

As I am not quite sure how the EBC system works in the car yet, I haven't really thought about a good way to tackle it.. The system may be 'smart' enough to see that the boost was increased and then alter how it controls it to lower it back to stock levels.. The only way to negate it seeing higher levels is somehow 'clamp' the MAP sensor so it reads less boost than you are pushing.. however, this would affect the fueling, timing, etc. because the computer uses all these sensors to 'tune' it.

To read the sensors, I got a 25$ bluetooth OBD dongle from ebay and installed an App on my android phone. It is quite useful as I can scan for OBD trouble codes, clear them, log data, review logs, etc. etc.

If you have an android phone, it would actually be cheaper to go this route than it would to buy a cheap boost/vacuum gauge.
 

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I know there is no straight forward answer, but are there general guidelines that dictate the size intercooler, intake and exhaust diameter size, fuel injection system, that you need for specific increases in HP? Assuming use of the wastegate that everyone talks about on this site, I was wondering if you knew, or had some links to forward me to, about any of this stuff.
 

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Intercooler

This may be a dumb question..but anyway here it goes....I assume the purpose of an intercooler is to drop the temperature of incomming air. Ok, so those that live in the desert have some advantages and some disadvantages. One advantage is the humidity is normaly less than 10 % so that if you want to go out on your patio when it si 105 degrees out you can use a water misting system to drop the air temperature about 20 degrees.

Could the same process be added to the front of the Intercooler(water msiting system) to precool the outisde air ahead of the intercooler..i.e. a misting system that could be turned on when it is really hot here in the desert. A fine mist of water to precool air...not real fancy rather simple. Now the million dollar question...would any of this help the preformance of the turbo and help negate what is called heat soak ?
 

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This may be a dumb question..but anyway here it goes....I assume the purpose of an intercooler is to drop the temperature of incomming air. Ok, so those that live in the desert have some advantages and some disadvantages. One advantage is the humidity is normaly less than 10 % so that if you want to go out on your patio when it si 105 degrees out you can use a water misting system to drop the air temperature about 20 degrees.

Could the same process be added to the front of the Intercooler(water msiting system) to precool the outisde air ahead of the intercooler..i.e. a misting system that could be turned on when it is really hot here in the desert. A fine mist of water to precool air...not real fancy rather simple. Now the million dollar question...would any of this help the preformance of the turbo and help negate what is called heat soak ?
First, the IC is to change decrease the temperature of the charge air, not the incoming air. The charge air (after the turbo) is heated by the compression if the air in the compressor, and the enemy of power is heat.

The process that you speak of is indeed a real product, like this one, and can often be made in you garage for less!! Search the Evo and WRX forums and you will find all sorts of versions of this technique.

In the correct conditions this will help the turbo and will most definitely help in the abatement of heat soak.
 
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