Dyno Report : GIAC DME Stage 3 Program on Boxster S

[Lux]

GIAC is custom tunable from what I understand. Obviously Evo can't do it without your car so getting your money back is a good idea. Did they offer any kind of guess as to why you're getting the results that you're seeing?

I believe there's a member on ppbb that has the exact setup as yours. He went on to dyno everything too and had much better luck. I think his name is Andy. You might want to do a search over there and talk to him.

Lastly, you might want to ping Garret @ GIAC. He might be able to offer some suggestions on where to custom tune over there or give some insight as to why you're seeing what you're seeing.


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[clubhead]

Originally Posted by Lux

GIAC is custom tunable from what I understand. Obviously Evo can't do it without your car so getting your money back is a good idea. Did they offer any kind of guess as to why you're getting the results that you're seeing?
....
Lastly, you might want to ping Garret @ GIAC. He might be able to offer some suggestions on where to custom tune over there or give some insight as to why you're seeing what you're seeing.
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Nope, the person that I liaised with, Mike Myers, was not the least helpful. He said that there's nothing that can be done and there's only the various off-the-shelf program for various stages. No offer to explain. He even tried to pull a fast one by telling me he warned me before I wanted to get the GIAC program that there would be minimal gains considering what I've placed in the car already??!!! I 'refreshed' his memory by reminding him that he told me I could probably expect gains of between 5-10bhp since I'm not compensating for fueling with my mods.

Like I said in my previous post, I even offered to pay for someone to drop my Singapore to tune the car on the dyno but he said that was not possible. No offer of explaination of why there's no gain was offered either. Just told me to send the DME back and get a refund, less shipping.

Honestly, I'm pretty disappointed with Evo's level of service. I had to call 4 times and each time was told he's busy. Left messages 3 times for him to respond to my email. Email was sent before that with no response. Wasn't really expecting this kind of response but what the hell, at least I'm getting my money back.

How do I get in touch with Garrett? I did try writing to GIAC using their general enquiry email off the web but the response did not help. They basically said they did not have any program that cater for a sports cat in addition to the header/muffler/intake setup...

[Lux]

Well, it sounds like you've exhausted (no pun intended) all options as far as Evo and GIAC are concerned.

There's 2 places here in the Bay Area that deal with Porsches and tuning them. Akkurat and Dynospot. You might want to call them and see if you can get some kind of guess as to why you're seeing what you're seeing. It's worth at least the phone calls.

Again, try to ping the guy on ppbb that has your setup and see what his story is...as I remember everything went smoothly for him and he got significant gains.

But other than getting someone to dyno tune your car on the spot, I don't think there's any other options. Good luck and keep us posted.


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[clubhead]

Originally Posted by Lux

... Again, try to ping the guy on ppbb that has your setup and see what his story is...as I remember everything went smoothly for him and he got significant gains.
...
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I gave up navigating the ppbb. The UI is just terrible. Not to mentioned because of the way it's setup, everything before the current month is archived

A guy over at Renntech has recommended Revo Technik which I explored previously. The good news this time round is they have an office in Singapore. I'm gonna call them tomorrow to find out more Hopefully custom tuning services will be offered.

I still gotta send my DME back to Evo to get my $795 back though

[andicati]

Maybe I am too much an optimist, but from what I can determine, you got a pretty respectable power gain just through headers and sports cat with stock ECU.

I had been wondering how well the stock ECU would handle a header change and you seem to have confirmed that it is up to the job.

What kind of power gain were you expecting from the remapped chip? Relatively speaking, it would have to be almost as much as the "header + cat" to justify the price and hassle?

Although the sports muffler didn't seem to to do anything for you power wise, did it at least give a decent sound? If so, perhaps the sports muffler should just be considered as an aesthetic upgrade?

Thanks for the sharing your travails...

[Adam]

That was what I was thinking. ClubHead has a tip equipped car and is pushing 238hp at the wheels with translates into approx 275hp at the crank.Wth basically just the headers and cats he made nearly 25 more hp. I think that is very good considering how unresponsive the flat 6 is to mods because it is already pretty tuned right out of the box. I will be starting a new job at Mid-America Motorworks in a couple weeks and I can get all parts at cost! I can't resist throwing on a set of dansk headers and cats now.

[clubhead]

Originally Posted by Adam

.... I will be starting a new job at Mid-America Motorworks in a couple weeks and I can get all parts at cost! I can't resist throwing on a set of dansk headers and cats now.

You lucky guy! What're you waiting for then? Oh yes, I guess the warranty issue for your relatively new car

[clubhead]

Originally Posted by andicati

...What kind of power gain were you expecting from the remapped chip? Relatively speaking, it would have to be almost as much as the "header + cat" to justify the price and hassle?
...

I'm looking at least slightly (3-6bhp) beyond what I had with just the headers & cats. I don't think that's unreasonable right? With a better calibration to fuel and ignition timing to cater for the better air flow, the car should make more power throughout the rpm range and just at the high end.

I'm still undecided whether I like the sound of my new exhaust. Its loud and draws attention but still not something I'm going crazy over