I will probably be corrected by the people more versed in this area, but he is probably referring to the piggy backs chips you see all over ebay. As it may work to begin with, your car's ecu will adapt to the change quickly and the chip will be absolutly useless. WASTE OF MONEY!skyfan said:I stopped by my dealer today and one of the salesmen said he heard that there is an after market computer chip out there now that will boost the Sky HP by 25. Has anyone else heard this and if so, where do you get them?
There is the detailed answer i couldn't give in post#2.:thumbs:loyal_SL2 said:The "chip mod" the initial poster was talking about is a common SCAM. The chip is actually just a resistor that sits between the intake temp sensor and the ECU and tries to trick the computer into adding more fuel. The problem with that is that the ECU on the sky, and on every other car since the late 80s, uses a closed loop fuel system. That means that it constantly modifies its own fuel delivery tables based on readings from the O2 sensor— here's what will happen:
1. ECU sees drop in air temp and adds more fuel
2. Extra fuel results in lower readings from the oxygen sensor in the exhaust system
3. ECU sees lower oxygen readings and reduces the amount of fuel delivered, effectively bypassing the "chip mod."
You can reprogram the ECU to ignore the O2 sensor to deliver more fuel, or to advance the spark timing faster, but you will eat gas like crazy and risk damaging your engine with knock. Also ECU reprogramming is fantastically expensive, so unless you plan on removing the speed limit and trying to kill yourself hitting a pothole at 140 MPH, I wouldn't really recommend it
50% gamble on $400, not a good deal where I come from.:brentil:seal9 said:May be so, But take a look at the SOL forum, 50% of them have reprogramed all ready with no problem and for under 400.00 the improvement is very good, the vender will be posting on the SKY forum soon and provides other speed parts as well.....with this ECU useing "CAN" maybe its not so hard...SEAL9:cheers:
loyal_SL2 said:I'll believe it when I see it Has anybody dyno'd this to verify it?
Wow, this Solstice almost looks good - much better nose. But if you want performance, for less than $10K, get the new KZ that puts 181hp in a 435lbs package. Of course it is 2 wheels, but there won't be much on the road that will beat you.:lol:CyaL8r said:Remember, all these minor mods are really meaningless unless you can Dyno your car to verify them. That typically costs $100+.
Also, more HP does not always effectively transleate into more torque. Most of us are trying to improve that 0-60 time, and 25 more HP ~may only translate into 5 lbs of torque depending on the engine. I have never found these chip mods to be cost effective and they typically void the warranty. If you are gonna dump $400-500 into something get a better air intake and exhaust.
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