Opel GT and Trifecta - Saturn Sky Forums: Saturn Sky Forum
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post #1 of 10 (permalink) Old 03-17-2019, 07:04 PM Thread Starter
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Opel GT and Trifecta

I have looked a lot at DDM's Power Pak för the LNF series. DDMWorks LNF Power Pak for Solstice and Sky

Questions:

* Is it better with 3 BAR sensors?
* It sounds nice with the "Select-a-Tune" to be able to choose if you want it all or just stock power. What are the pro's and cons?
* If a selectable tune is applied, is it better with the Cruise control or the Competition mode choice?
* I am thinking of skipping the High flow cat since the regulations and testing is rather hard here in Sweden.

*Any other things to think about, problems etc. Please tell me your experiences.

Best regards, Kjelle - Sweden

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post #2 of 10 (permalink) Old 03-18-2019, 02:08 AM
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I can't say if it's better with the upgraded sensors, but I can say I've been running the canned Trifecta tune for the past five years on the stock sensors and have never had an issue. The "Select-a-Tune" is useful--especially useful if you ever travel with the car and can't find premium fuel (Northern Italy), I have mine configured on the cruise control and I think that's a better arrangement, as most of the time I want to drive with the tune on but want to be able to control if I have full stability control or competitive mode or whatever. On the other hand, there has never been a time when I have had the cruise control engaged but thought to myself, "I really wish I had the tune active right now!"

In your place I too would skip the non-compliant parts. The closest I got to putting uncertified parts on my car was the DDMWorks Big Brake Kit, but I ultimately thought better of it. I'm not sure about Sweden, but if they notice an aftermarket, non-approved exhaust on my car here, it's coming off...not worth the trouble in my opinion.

The one thing you might consider is an E85 tune. That will net you quite a bit more power, and some years ago we did a road trip across southern Sweden, Skåne and Småland, and I couldn't help but jealously notice that just about every petrol station offered E85. I'm not sure where you live specifically, but if I were in the land of ready E85 access, I would put an E85 tune for sure!
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post #3 of 10 (permalink) Old 03-18-2019, 09:18 AM Thread Starter
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Thank you very much for the answer.
I had the same thought that you might want to have the stability control activated at the same time as the tune.

Do you mean that when you turn OFF the cruise control than the tune goes active or the other way around?

The supply of e85 is decreasing here in Sweden so I think I'll go for the normal tune.

How did you perform the reprogramming in Italy? Did you send logs to Trifecta or DDM for fine tuning?
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post #4 of 10 (permalink) Old 03-18-2019, 02:09 PM
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All you need is the base tune. The CAI and Charge tubes look nice, but do nothing for performance. I had the base tune for 4 years and ran it off the cruise control, as my car still has an extended warranty.

Do the pretty stuff if you want it, but it really serves no purpose, other than a little noise from the CAI unit, which I hated. Sounds like a sick goat.
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post #5 of 10 (permalink) Old 03-18-2019, 02:41 PM
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Quote:
Originally Posted by Kjelle69 View Post
Do you mean that when you turn OFF the cruise control than the tune goes active or the other way around?

The supply of e85 is decreasing here in Sweden so I think I'll go for the normal tune.

How did you perform the reprogramming in Italy? Did you send logs to Trifecta or DDM for fine tuning?
I believe they can configure it either way, but I have mine setup so that when the cruise control is "off," then the tune is active. There is no relationship to the cruise control being engaged, the tune is configured to respond to the setting being either "on" or "off." If that makes any sense.

Unfortunate about the E85. It really seemed as if every petrol station had it on offer. You need to really hunt it down here in Germany, it's certainly not worth the trouble. Of course seemingly every shop here sells useless LPG.

I am in Germany, but it's all the same, there was no fine tuning in my case, I just bought the canned tune. The comment about Italy has to do with their seeming lack of offering anything except 95 RON when I've traveled there with the car.

I downloaded it to the car using the cable I bought from them and my laptop, took just a few minutes. I can definitely recommend just doing the basic tune, I think general consensus remains that if you have mostly stock hardware then it works well. I've been using it, and beating quite hard on the car for the past years and it's been flawless. Nothing strange to report in terms of knock retard or other parameters when I have scanned the car with a Tech2 emulator, either.

If you'd like to borrow the Trifecta programming cable to program your car I could maybe post mine to you and save you the trouble of shipping and importing one, though I would want it back.
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post #6 of 10 (permalink) Old 03-18-2019, 06:00 PM Thread Starter
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So the tubes does not really do any difference? The bend seems so very cramped on the stock tubes.


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All you need is the base tune. The CAI and Charge tubes look nice, but do nothing for performance. I had the base tune for 4 years and ran it off the cruise control, as my car still has an extended warranty.

Do the pretty stuff if you want it, but it really serves no purpose, other than a little noise from the CAI unit, which I hated. Sounds like a sick goat.
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post #7 of 10 (permalink) Old 03-18-2019, 08:40 PM
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So slight you would never notice it. Most on here have done all this stuff. And it does dress up the engine, but if you are only looking for performance upgrade, then the Base Tune is all you need. You will be very happy with it for sure.

If by chance you live in California, both will fail the smog test. They won't even test it with them on the car.
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post #8 of 10 (permalink) Old 03-20-2019, 05:25 PM
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BTW, the stock tune doesn't work with the GMPP sensors (or at least it never did) so those that fitted the new sensors before installing the GMPP tune had to drive gently to the dealer lest they throw a code.

The switchable Trifecta tune is an overlay on whatever was there before. If what you started with was the GMPP tune with the new sensors, then switching off the Trifecta tune will work as the underlying tune is compatible with those sensors. If you put a switchable Trifecta tune that you had done to work with the upgraded sensors, over a stock (i.e. old sensors) tune, you will never be able to turn it off, as the base tune won't work with the upgraded sensors.
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post #9 of 10 (permalink) Old 03-25-2019, 04:08 AM Thread Starter
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Thanks, this is really valuable information.
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post #10 of 10 (permalink) Old 06-04-2019, 05:47 PM
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Hai kjelle,

Maybe an EDS tune is also something for you. Dozens of them are driving around in Germany and the experiences are good. You have several choices.

In Germany they usually drive the Phase 1.

If you buy it with the IPF system you can download and install the tuning software yourself. The support from EDS is very good.

With this tune the rest of your car can all remain standard.

Greetings from the Netherlands

Walter (OmegaUser)
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