From what i have read, those are legit. It is remapping the fuel-air ratio giving it a different mixture causing a small gain in Horsepower.

I am not looking for opinions, i am looking for people with this mod to confirm what it does do.....has anyone installed this mod?

Please dont bash the thread, only looking for testimonials. Thanks

 

in my previous cars they did very little.

 

If you are talking about the resistors on ebay:

from an engineering point of view, I would rather shoot a hole through my engine block than buy that resistor. What they say the resistor does is fool your ecu into believing that it is getting colder air than it really is. Colder air would be more dense, so your ecu adds more fuel into each cylinder to keep your air-fuel ratio correct for the percieved data. Since the air is not actually cooler, it causes your engine to run rich. Not good. You will only see an improvement if your car is already running lean, and even then it's not the greatest idea as you will not be addressing what is causing your car to run lean, but finding away around it.


It is best to save your money.

 

ECU chips will generally give you a little more power, but they are "generic" and not suited to your engine. The chips have "upgraded" fuel and timing maps, and usually give you a bump in midrange power.

A true standalone would work much better, but the price might not be worth it to your average joe who just has a few bolt-ons.

 

hmm... depends what kind of chips... the ones off ebay are just resistors... dont do ____... i know first hand beucase my friend bought one hahaha... it was only like a buck though...

on the other hand if it is a chip for the ECU specifically designed for the car the remaps the fuel curves and such... then it will not only just give u a few extra hp, but a significant gain... for example on the VW GTI 1.8t... you chip it the car gets about 20whp... and on the non turbo 2.0 engine it gains about 11hp... a noticeable difference still.

 

yah but these cost a lot? the real ECU upgrade type deals?

 

yea the ones for the VWs cost about 500 for the turbo chips... and 100 for the non turbo models

 

the chip i ran on my 91 integra was a skunk2 all motor high revving chip. this however is a universal chip (for hondas at least). it is highly recommended to chip or program your ecu upon finishing up all the bolton, addon, getsome horsepower you can squeeze out. and each ecu should be chipped or reprogrammed individually to maximize performance or reliability. the integra's chip that was installed didn't really reprogram the fuel maps or anything like that. it just allowed the engine to rev past the factory limiter and to exceed the factory speed limiter (factory on the gsr motor is 8000rpm but i have the recorded apexi rsm reading or 9999rpm and the recorded autometer tach reading at a little over 12000 rpm) this chip was about $50 or so... but piggy back units which alter some settings via signals to the factory units can run from $200-$500 and stand alone units with free programming limits are from $900-$2000. these figures are only for what i saw available for the integra. i'm not quite sure if there are manufacturers out there with a standalone unit ready for the xa/xb but piggy back units are available from apexi or blitz.

 

Scions will never be fast. You will be spending hundreds of dollars to MAYBE make a 20 second car into an 18 second car, and lose your warranty in the process.
It's just not worth it, man...there are SO many other platforms out there. Just let the Scion be the econobox it was meant to be!

 

It's fun. That's why people do it. They chose the Scion because they like that platform. Let them have their fun. Jeez.

 

Not all "Scions" are 20 second cars....i know you weren't referring to the tC when you said that which is a Scion last I checked.

 

The tC is highly capable of running 14's all motor... even less with forced induction and good suspension, etc.

 

I would stay away from them. Just gimick, but that's my opinion.

I didn't buy my xB to go "fast". I bought it cuz it gets good mileage, is unique, and I can stuff considerable gear into it.

 

i bought mine so i can swap a motor into it and have an awesomely styled fast import killer. lol one day. but yeah it sucks that theyre slow but they look too good to not buy one.

 

IMO IMO IMO IMO



just buy an APEXI FC
http://www.apexi-usa.com/electronics_fc.asp

or the APEXI S-AFC
http://www.apexi-usa.com/electronics_safc.asp


those regulate your fuel/air ratio. ull get a lot more power out of those than the one's on ebay. AND you get to have a little fun with your car, leave room for future upgrade, and learn a thing or two

 

The "richening resistors" might make a bit more power, but at the expense of fuel and of overheating your catalytic converter. Remember, the cat has to burn off all that extra gas that is being injected.

George

 

Please don't give opinions if you don't have one on your scion, you know nothing of it's possibilities with our specific engine.

If your serious, my JET chip was purchased for a lil under $200 from a friend designed for the 1nz-fe. Then it was re-tuned for the added upgrades such as the corolla injectors and custom intake manifold. I believe stock it put down 4whp with I/H/E and after re-tuning put down 16whp with some added pieces AFTER they were tested on the stock ecu.

So my upgrades on stock ecu were around 120whp, then the JET chip got me around 135 but of course that was with another $200 inversted in re-tuning


If you

I have the JET

 

i wouldnt doubt that for a sec but i though he was referring to one of those ebay "chips" that just splices into the iat sensor.

 

my stock Xa is too fast, fast enough for me :twisted:

 

u think it's fast? what previous cars have you owned?