Powerchip

[Ronzi]

Don't know squat about these chips, but:
"About 10%" could mean practically anything. Do they pay off if it is 4.9%, but not if it is 5.1%?
If you gain 6% at 6500, but lose 8% at 3500 is that OK with you?
From what I have seen reading about chip replacements on this forum, that seems to be what you are frequently faced with.
Also, my suggestion would be that you pick the dyno shop, not them.
You might want to specificy that after the installation of the chip that the onboard diagnostic must not set any error codes.
Ditto on the emission testing and all of it in writing, as suggested.

[Pilot2519j]

What I have read all over plus asking garages the maping with chip mod is not that great. You have to add cat modifications besides so for 2500 to 3500 you will realize gains of maybe 20 hp at best. There is a penalty in the lower rpm's. After all is said and done the only way to go is to supercharge the engine which will run over $ 5,000 US. The increase will be of 30% which is about 60 hp in a 2003 S which is what I have. I believe you also have to change the cats to accomodate the modifications. That is the only way I see doing anything. The engine swap is more expensive. In short I think we should be happy with the engine and the dynamics of the car we own. The hp race is extremely expensive for this car.

[Brucelee]

I bumped into a fellow at our local dealer who has a Supercharged 97 Box. I asked him to join us and post about his car.

I hope that he does!

[Adam]

I don't know if this is true or not Pilot, but on another board someone said they talked to TPC and they have discontinued the supercharger for the 3.2L engine because owners were only seeing gains of around 20hp. The logic behind this is the blower(with an output of 4.5 PSI) isn't moving enough air to substantially increase the output compared to natural aspiration. Since the smaller 2.7's and 2.5's gulp in less air through the intake, they gain more from the upgrade. Since you can increase boost to 7 PSI by changing pulleys, I'm not sure if I'm buying what this guy was saying. Can anyone confirm or disprove this?

[Porschekid]

A shop near me does the GIAC upgrade for around $1000. They say it is around a 12WHP and 10 ft/lb torque increase on a 2.7 Box. If it is throughout the powerband, this seems like a decent upgrade for a little more power.

[Adam]

You also have to keep in mind even if the power is alittle worse than stock down low that is not the worst thing in the world. When you want maximum accleration you should keep the revs above 5k rpm anyway.

[clubhead]

Originally Posted by Porschekid

A shop near me does the GIAC upgrade for around $1000. They say it is around a 12WHP and 10 ft/lb torque increase on a 2.7 Box. If it is throughout the powerband, this seems like a decent upgrade for a little more power.

My DME is on the way back from Evolution Motorsports with a new GIAC stage 3 program (headers, muffler, intake). They took bloody 1 week to get my DME turned around as they claimed my DME is different from those in the US. I do not doubt them but the person liaising with me provided very poor service.

Anyway, the GIAC upgrade is $795 because they only need to flash the DME without any need for a chip replacement.

As usual, I'll be posting a dyno report once I get the DME installed. I'm keeing my fingers crossed on this one. Hope my engine doesn't blow up or anything like that when I first drive my car. I'm kinda worried that my DME is different from those in the US and Evo gotta do 'something' to get the program into it...

[Porschekid]

^ Sounds good man, I've been waiting for your results. I'll keep an eye out for a post from you once you're finished.

[cmanders]

I am the Superchips agent for Ireland and have just installed their new release for the Boxsters(both 2.7 and 3.2L) on my own 3.2 2002. I dynoed the car before and after and got increases of 13 Bhp and about 10% more torque. It seems to have also improved throttle response in the low range(1500 to 3500rpm). The upgrade is carried out through the OBD port using a new interface they are about to release to the rest of their dealer network. the cost should be about €450.