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Discussion Starter #1
Hi all,
Decided to go with the budget tune and finally got some nice weather today in western MA. The procedure went smoothly until I moved my laptop to the passenger seat at around 20% completion to light up a smoke while waiting. The usb connector moved and lost contact. What followed was a variety bells, chimes and beeps from the dash. The upload stopped, naturally. Lol. I had visions of tow trucks.
So, I started over but this time I rested the laptop on the seat and avoided the red Trifecta patch cord. Took about 15 minutes and it completed successfully.
After disconnecting the laptop, I said a short prayer and started her up. No dummy light came on so I went for a spin around the block just to see what the boost gauge would read. Pressed the cruise control to on, I floored it and boost when up to 12-13psi, like always.
Dang it, I though. It didn’t take.
Then I remember reading a forum post about the cruise control being programmed to turn on the tri tune in the off position. Worth a shot, I figured.
This time the boost climbed to 21psi. Yes...
Unfortunately, I didn’t have time to hit the highway today, so tomorrow is the day for that. I want to see if it throws any codes at sustained boost.
Stay tuned....:cheers:
 

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Discussion Starter #2
Drove the RL at highway speeds today. Turning the tune on and off(cruise control) and what not. I noticed a very significant difference. Not only did the boost max at 21psi, the shift points happened at 6k rpm. Very nice. Kinda like a "sport mode" that some performance cars have.
So, cheers to Trifecta, happy motoring, and stay safe.
 

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Great to hear that everything worked fine.
I am thinking of going the same way as you did.
Did you change the intake pipes also ?
What kind of operating system did you use on your laptop?
 

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Discussion Starter #4
Great to hear that everything worked fine.
I am thinking of going the same way as you did.
Did you change the intake pipes also ?
What kind of operating system did you use on your laptop?
Nope. The car is completely stock. Trifecta recomends Win 8.1 or higher. I used Win 10. Just remember, while connected to the OBD, place your laptop on a steady surface and make sure the usb end of the cable doesn’t get wiggled.
Have fun....
 

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Nope. The car is completely stock. Trifecta recomends Win 8.1 or higher. I used Win 10. Just remember, while connected to the OBD, place your laptop on a steady surface and make sure the usb end of the cable doesn’t get wiggled.
Have fun....
Yeah, this was my biggest fear so I had it set up so I could get in and out of car without touching any wire or cable. My install went smooth. Win 10:cheers:
 

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Nice! Same here. Suggest plugging in 2amp+ charger to make sure the battery doesn't die, setting laptop not to go to sleep, and using an AC adapter to keep laptop plugged in.
 

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Nice! Same here. Suggest plugging in 2amp+ charger to make sure the battery doesn't die, setting laptop not to go to sleep, and using an AC adapter to keep laptop plugged in.
....umm... just a little overkill....

10 minutes sitting in my car with the laptop and everything was all installed and set up.
 

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As far as PSI, the car consistently hits 23 when I enter I-95 to / from work. I know Trifecta is just a canned calibration, not a real tune, but for a simple daily driver like me, it is a nice basic addition without stressing out the other components of the car.
 

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As far as PSI, the car consistently hits 23 when I enter I-95 to / from work. I know Trifecta is just a canned calibration, not a real tune, but for a simple daily driver like me, it is a nice basic addition without stressing out the other components of the car.
I've had the Trifecta canned tune on my car for five years and I've never really been want for more power. The one thing it really does is brings the torque curve down lower in the revs so that you get a fantastic shove driving around town. In the high end you're getting more power as well, but it's the low-RPM punch that really impresses...
 

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How is the torque with this tune? If you are driving slow on first and just push the gas pedal down, will it spin on a dry road?
 

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How is the torque with this tune? If you are driving slow on first and just push the gas pedal down, will it spin on a dry road?
Yes, in first and second. Third if your tires are kinda bald or there is any moisture on the road. It can also unsettle the car in 4th on the highway at a very specific speed/rpm (don't know what it is, but can feel/anticipate it after a bit of experience).
 

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How is the torque with this tune? If you are driving slow on first and just push the gas pedal down, will it spin on a dry road?
Outstanding. Yes, absolutely if you are driving on cold tires. If you have fresh, warmed up rubber you can make the most of the power, and get a very satisfying wiggle coming out of corners. It really makes the car supremely fun to drive at speeds under 100 km/h. As a value for money I can't recommend it enough.

I will say though, if you are out really abusing the throttle on a warm day, the car is prone to heat soak with the tune, and you can feel the power start to fade off a bit until the cars cools back down. This hasn't bothered me enough to do something about it, however.
 

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Sounds fantastic guys, I mean I am 50 now but I still like it when the vehicles are lively and dynamical :lol:
When you say 'heat soak', how do you mean? Cooling water getting to hot or ?




Outstanding. Yes, absolutely if you are driving on cold tires. If you have fresh, warmed up rubber you can make the most of the power, and get a very satisfying wiggle coming out of corners. It really makes the car supremely fun to drive at speeds under 100 km/h. As a value for money I can't recommend it enough.

I will say though, if you are out really abusing the throttle on a warm day, the car is prone to heat soak with the tune, and you can feel the power start to fade off a bit until the cars cools back down. This hasn't bothered me enough to do something about it, however.
 

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When you say 'heat soak', how do you mean? Cooling water getting to hot or ?
Coolant temperature generally stays normal, but the intake, turbo, intercooler, etc. all will start to heat up when you are continuously running 23 PSI, especially if you're not really moving too quickly, that is, driving on the Autobahn going 200+ to get air moving through. If you do this long enough then you'll notice the power fall off, but once the car cools back down it's back to normal.

I still think even when hot you're getting more power than you do on the stock tune. If that's a great thing for the engine and turbo, who is to say, really... :D
 

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Heat soak isn't an issue if you drive like most of us - bursts of hard acceleration punctuated by longer steady cruising or off boost driving in traffic. You are unlikely to see much drop off in power unless you are driving quite hard - the example we have seen are back to back runs in solo events where there isn't time for the hot intake to recover - in that case a larger intercooler improves things.
 

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When you say 'heat soak', how do you mean? Cooling water getting to hot or ?
Coolant temperature generally stays normal, but the intake, turbo, intercooler, etc. all will start to heat up when you are continuously running 23 PSI, especially if you're not really moving too quickly, that is, driving on the Autobahn going 200+ to get air moving through. If you do this long enough then you'll notice the power fall off, but once the car cools back down it's back to normal.
Mstrjon32 is spot on about heat soak but I wanted to help clarify what it is and why it's bad.

As you know, engines are designed to run with some heat in them...hence the age old adage about allowing an engine to "warm up" before getting on it. You want some heat in the engine. This heat comes from specific parts of the engine though, the head, the combustion chamber of the cylinder, and in the case of force induction cars, the air being compressed to feed the engine.

Your coolant is there to manage the heat produced by the cylinder head and combustion chamber. The effectiveness of that system is controlled by the system's design (flow rate, radiator size, and thermostat) and your tune (timing, boost, when the fans start, when they speed up, and if/how long they stay on after shut down).

The heat from the turbo however, is managed completely differently. There are a couple of things to know as a foundation to understand the concept of heat soak and why it's bad so we'll start there. As most know, air density (how much air you have in a given space) drops as the temperature of that air increases. Thus say a box 1' square contains air at sea level pressure (apx 14.7 psi...but we call that 0 air pressure and below that is vacuum measured in negative numbers while above it is boost measured in positive numbers) and air is allowed to come in or go out. If the temperature inside that box is 60 degrees, it will have more air in it than if the temperature inside that box is 160 degrees.

Making power out of an engine is simply a matter of burning fuel. The more fuel you burn, the more power you make. However, to burn anything you need oxygen and in cars, obviously, we get that from the air around it. Too much though and the gas won't burn...to little and the gas won't burn...the mixture of air and fuel, expressed as a ration, must be right for the gas to burn. Thus if you want to make more power by adding more fuel you have to have more air in the appropriate ratio. That ratio is between 10.0:1 and 18:1 though generally 14.7:1 is considered ideal and anything above that is considered lean. For power, we often run rich in the 11:1-13:1 area.

So here is where the turbo comes in. The turbo is designed to PUSH more air into the engine than it would normally have allowing us to inject more fuel and thus make more power. The problem is, the more you compress a gas, the higher its temperature becomes and thus, as mentioned above, the less dense the air is. Turbo's have what are called "efficiency maps" and these maps tell you how much air the turbo can boost before the amount of heat generated by compressing the air causes the resulting air charge to have less air in it than an air charge with a lower boost pressure may have.

Let me simplify this last part. Say your turbo is designed to run on a 2.0 Liter engine and run up to 23 psi of boost. Sound familiar? Now, you want to make more power so you turn up the boost to say 30 psi. Surprisingly, the car feels much slower. This is because that amount of compression is off the turbo's efficiency map. at 30 psi, the heat generated by compressing the air that much has lowered the air density of the resulting air charge so great, that you are actually sending less air to the engine than you would if you were to run it at only 23 psi. (This is an INCREADILY oversimplification of all the factors that go into how a turbo works but this is a discussion on heat soak.)

Even so, the air leaving that turbo at 23 psi is still MUCH hotter than the air coming into the turbo from the outside world so if you can cool it back down to something close to ambient, you'll have more air going into the engine and thus can inject more fuel and thus make more power. This is what you're intercooler is for.

As the hot air leaves the turbo, it passes through the intercooler before going onto the engine. As it does so, heat passes from the hot air from the turbo into the metal parts of the intercooler. The intercooler then transfers that heat from it's metal bits to the cool air passing over it as you drive down the road. A properly set up turbo/intercooler system should see the temperature of the boosted air leaving it and going into the engine only 1-3 degrees hotter than the temperature of the air going into the turbo.

Now the problem we have is NORMALLY we accelerate for only a few moments then cruise for a long time. This works fine for our intercooler. However, lets say we accelerate hard, then stop, accelerate hard, and stop, and repeat this over and over. Well the intercooler needs air moving over it to cool off and if it's not getting those "cruise" moments where the air coming into it is not too far off the temp of the air outside, it can't cool off. If this is repeated long enough, the intercooler will get hotter and hotter and thus be able to remove less and less heat from the compressed air the turbo feeds it. This can also occur if you are always in boost like when you take a hard drive up a mountain road (though takes longer than the above mentioned process since you ARE moving just not at high speeds) since the intercooler is constantly trying to remove heat. The more heat builds up like this. The longer it takes to cool back down.

This build up of heat over time is what we call heat soak. Now, it doesn't only happen because of the above mentioned conditions. Drag racers try and run their cars on start up only long enough to get them up to temperature and nothing more. Any longer, and the heat from the engine starts to get into their intercoolers and make them less effective. If you make a pass, come back, make a pass, come back, and make another pass...by that third pass you're going to be suffering from heat soak to have it be noticeable and affect your times considerably. On REALLY high horsepower cars, it may affect even the second pass.

Now other things can be heat soaked too and the one that comes to mind in our cars is the Power Steering system. The Power Steering Reservoir relocation modification is all about moving the power steering fluid tank further away from the turbo so the fluid doesn't get heat soaked and overheat by the heat coming off the turbo. In Autocross on a hot day, by the third lap I would experience power steering whine. On the fourth....if we got one...I had a very heavy steering wheel and the power steering would wine the whole lap. Overheating problems such as these are a rapid version of heat soak since if I let the car sit or drove it normally for a while this condition would go away.
 

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Thinking about getting the budget tune. Sky Redline is stock, budget tune is good enough for me.

On Trifecta's website it clearly shows Cruise Control On = Tune On but on numerous forums its mentioned to be the other way around. Did Trifecta change it recently?

How does the tune affect cruise control usability? How can cruise be used with or without tune on?
 

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When I ordered, I was able to say that I want the tune on with cruise off (so when the car starts up, it's always in trifecta map mode).

Either way it won't affect cruise operation. I just didn't want another button to push to just enjoy the car. I believe there was an option to choose competition mode = tune on, but wanted to keep that separate.
 

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Discussion Starter #19
On my Sky, my tune turns on when the CC is off. I only use the trifecta tune sparingly, so when I’m done for the day, I turn the car off and the next time I start the car, the CC remains in the same state as when the car is turned off.
I haven’t tried using the CC for its original purpose, yet. Just waiting for the April showers to be over with.
Also, I think I remember Trifecta, a while ago, allowed the customer to choose which state they wanted their CC to engage. I could be wrong. My memory is fuzzy.
 

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Pretty sure the norm is CC on turns the tune off. Cause when you engage the CC the tune really wouldn't be doing anything anyhow. This allows you to have an option of turning the tune off if you want. I like it as its an easy A/B comparison and does really no harm.

And yes the CC is latched so whatever state its in when you turn the car off, is the state it will be in when you turn the car on.
 
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