Thumbs UP or DOWN for GForce Performance Chip for my 1987 MK 1 MR2

[jrovnak]

Any body have any experience installing a GForce Perormance chip in a 1987 MR2. Their claims are large. GForce says the GF Performance Chip reprograms your air/fuel ratio, ignition timing, and other aspects of your vehicle's engine to SAFELY increase the power, while increasing fuel economy significantly. Their chips are designed and programmed per vehicle. Your car will run smoother, run cooler and more efficiently at the same time. GF claims the gains they advertise are real, and are guaranteed with a money back promise. GF claaims their chips will not only increase horsepower, but torque as well for more REAL power. It increases power throughout the full RPM range unlike many of their competitors chips.

GF claims Installation can be performed by anyone, even me, using simple hand tools. The GF module installs into your MR2's engine bay and is connected via 2 wires that plug into the IAT sensor. Diagrams are included. The unit is then able to reprogram the ECU thus improving your car's performance. Everything needed for installation is included in this kit for a quick and easy installation that shouldn't take more than 15 minutes, maybe for you. GF claims there is absolutely nothing else needed to have this installed on your vehicle.

GF claims what sets them apart from theircompetition is that they offer a solid product that they stand by, so much so that if you are not satisfied in any waythey will offer you a 100% no questions asked refund. Additionally, just from the fuel savings alone, they claim their chip pays for itself!

This is not a advertisement for GF. I just wanted to know if anybody has experienced or confirmed these GF impressive claims?

[MC_BigMike]

If it connects to your intake air temperature sensor, then all they are doing is adding resistance to the circuit to trick the ECU into thinking the ambient air is cooler than it really is, which means the car will run richer to compensate for the more dense (cooler) air.

You can just do this yourself if you want to see if it works or not. Run down to radio shack or some other overpriced electrical store, and buy a high turn count potentiometer with a range up to about 1,000 ohms or so. Then install it in line with your IAT and using a multimeter, set it to like 100 ohms then go out and drive. Slowly increment it and see how it feels each time. Probably you'll only need about 200 or 300 ohms to notice a difference but I've never done this before to a 4A-GE so I don't know what is the ideal resistance to use; you'll have to play around with it which is why I am recommending a POT.

Your car will run slightly richer, your cat will run hotter, your spark plugs will have more carbon on them, etcetera from doing this sort of mod. Yes you will pick up some power, but the difference will be like driving your car in the early morning hours compared to driving it in the heat of the afternoon. Don't expect to get any "real" performance from this, but you do stand to pick up a few percentage points in performance but that's it. If they are claiming 10 or 15% improvements then they are full of crap.

I'd recommend doing this yourself rather than some kit. You'd be out no more than $5 for everything you need, and you can easily remove the parts and resolder the IAT wire when you decide it doesn't make much of a difference. You can also install a switch in parallel with the POT, that once closed, will bypass the POT and return the car's operation to normal. That way you'd get your fuel economy back and won't be running overly rich. Then if you want to run rich suddenly, just open that switch and the ECU will believe you've just changed climates.

Good luck,
BigMike