Go to http://www.goapr.com and see what they do with the little K03. I guess it is a little different going on a 2.4 though. Just thought I's add my senseless knowledge.
hey, my junkyard/ SUPER low budget turbo project
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stroker-ace
- Posts: 64
- Joined: Tue Dec 03, 2002 12:25 pm
The K03 is small and looks more fitting on a Briggs and Stratton, but it will hang at 1bar all day long. Take it from a long time VW driver and part time 1.8T tuner.
Go to http://www.goapr.com and see what they do with the little K03. I guess it is a little different going on a 2.4 though. Just thought I's add my senseless knowledge.
Go to http://www.goapr.com and see what they do with the little K03. I guess it is a little different going on a 2.4 though. Just thought I's add my senseless knowledge.
PeteMoss,
There are several problem that you are missing.
*Back pressure-- you will increase your back pressure with the 1.5" hole you are trying to stuff the exhaust through. Back pressure robs power and causes other problems.*Compressor Matching -- At .7bar @2500 rpm the 2.4L will flow approx 13lbs/m. The K03 efficiency is less than 60% at this point. Low efficiency means high charge temperatures. This is bad. With the 1.9L IC you will have detonation. All this at only 2500 rpm. As rpm goes up, mass flow is up and with this turbo, efficiency will go down temps up etc... Because this turbo is designed for lower flow rates there is no mass flow / boost combination that has a decent efficiency.*Turbine -- The turbine is not designed for these flow rates. You can over speed the turbine. The turbine wheel may stall.
Please don't destroy a perfectly fine engine.
Go buy the current issue of Sport Compact Car. It has a decent article on turbo charging and a KKK K03 map. When you are done, go buy the book Maximum Boost by Corky Bell. It will teach you the basic of making a turbo system. You can make a junk yard turbo, just do your homework.
CireNow
There are several problem that you are missing.
*Back pressure-- you will increase your back pressure with the 1.5" hole you are trying to stuff the exhaust through. Back pressure robs power and causes other problems.*Compressor Matching -- At .7bar @2500 rpm the 2.4L will flow approx 13lbs/m. The K03 efficiency is less than 60% at this point. Low efficiency means high charge temperatures. This is bad. With the 1.9L IC you will have detonation. All this at only 2500 rpm. As rpm goes up, mass flow is up and with this turbo, efficiency will go down temps up etc... Because this turbo is designed for lower flow rates there is no mass flow / boost combination that has a decent efficiency.*Turbine -- The turbine is not designed for these flow rates. You can over speed the turbine. The turbine wheel may stall.
Please don't destroy a perfectly fine engine.
Go buy the current issue of Sport Compact Car. It has a decent article on turbo charging and a KKK K03 map. When you are done, go buy the book Maximum Boost by Corky Bell. It will teach you the basic of making a turbo system. You can make a junk yard turbo, just do your homework.
CireNow
You can control them with a hacked MAF. look up "hacked MAF" or "theorizing larger injectors stock ECU" (with modifier set to AND) and you should probably find all of Orion's and my threads on it (AFAIK we're the only 2 people running such a setup).oi138 wrote:Bigger injectors is the only other way. Which then you have to have something to control them. ie. jwt ecu, apex-i safc, etc. That is definatly the more expensive route but still the best.
Basically, you control your fuel map by changing the size of the stock MAF. Both of us are running 370cc injectors, and both of us have beat the crap out of our cars with no fuel related problems (many many many autocrosses for me, he's done autox and drag events already, as well as dyno'ed 224rwhp at 5.8psi). This is by far the cheapest way to get a fuel system that theoretically can handle up to 11psi.... but how "safe" it is hasn't been truely tested.
Since it's still being "pioneered" somewhat... I wouldn't suggest trying it unless you're very confident in your understanding of fuel systems, as well as turbocharging.
