Who reprograms stock Jeep ECU's for boost?? - JeepForum.com

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post #1 of 4 Old 03-15-2006, 02:41 PM Thread Starter
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Who reprograms stock Jeep ECU's for boost??

Anybody do this on here???
obviously I know I will need a 2 bar map sensor from a turbododge or something like that... I plan on running less than 15psi... I am thinking around 10psi max on stock pistons ...

any input on the strength of stock pistons under boost???

I am thinking about a rear mounted turbo kit on my 91 Cherokee 2wd with 4.0L/ AW4 tranny....

that or a supercharger on it....


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post #2 of 4 Old 03-21-2006, 03:49 AM
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I have a 99 TJ 4.0 running 7.5 PSI of boost but am pulling out some timing to keep the engine from knocking. For fuel you can either run a FMU or a computer modified signal. I started out with the fuel management unit but am switch to the computer. The FMU works by boosting the fuel pressure as soon as you hit boost. With this mod, the map sensor is left stock. The computer modifies the map sensore voltage and tells the ECU to inject more fuel. This is the better of the routes if possible. Either way, the guys to talk to are 505 performance. They are producing TJ turbo kits.
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post #3 of 4 Old 03-21-2006, 04:18 AM
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There is a company in Calif that make a piggyback computer that will work on our Jeeps. Look up SplitSecond and look at their FTC1 or FTC1E also give them a call and discuss what you are doing. And 505 is sourcing their computer stuff from SplitSecond last I heard.
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post #4 of 4 Old 03-21-2006, 05:34 AM
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These guys did my 4.3 computer, http://fuelairspark.com/

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