Anyone raise the boost yet?
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Joined: 08-10-08
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From: Bolivia
Can you not shorten the wastegate actuator rod to override the computer, or completely eliminate the computer controlling it? HKS or greddy turbo control? Just guessing, I figure these turbos have a traditional actuator rod that can be tinkered with.
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From: Hotlanta
Wrong, wrong and wrong.
Raise the boost till the turbo comes apart.. not going to matter with the torque management. Gotta get over that hurdle first.
PCM knows how much boost you are running, and its going to shut down the TB. Dont waste your time without a tune
Raise the boost till the turbo comes apart.. not going to matter with the torque management. Gotta get over that hurdle first.
PCM knows how much boost you are running, and its going to shut down the TB. Dont waste your time without a tune
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From: Bolivia
What's anyone here run with their nifty turbocharged cars? That's run as in a time slip from an actual dragstrip? mph as well? The stock/simple bolt-ons SC Cobalts at Beach Bend raceway (my local track) seem to be running 14.50s, I'd expect the turbo cars should be hitting mid 13's if the driver has any sack.
So how do you change the Horsepower numbers in the program? If I want 490 hp and 460 ft/tq, I put on 60 mm turbo with nitrous, the computer will only allow the turbo to spool up to 3 psi? Is there software available to change tune?
So how do you change the Horsepower numbers in the program? If I want 490 hp and 460 ft/tq, I put on 60 mm turbo with nitrous, the computer will only allow the turbo to spool up to 3 psi? Is there software available to change tune?
Last edited by 89TurboTA; Aug 11, 2008 at 07:07 PM. Reason: Automerged Doublepost
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From: around the world
Hptuners just came out with a new beta that allows you to adjust the desired airflow(boost) so all is well now.
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From: FL.. FT LAUDERDALE/MAIMI
hptuners.com
thread https://www.cobaltss.net/forums/2-0l-lnf-performance-tech-153/hahn-ss-tc-13-11-%40-107-a-126430/
damn some people just hate the friggin search bar that took me 5 seconds to find.
thread https://www.cobaltss.net/forums/2-0l-lnf-performance-tech-153/hahn-ss-tc-13-11-%40-107-a-126430/
damn some people just hate the friggin search bar that took me 5 seconds to find.
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From: Anderson, IN
I backed the rod off so I run between 19 and 20 psi. I wondered if the computer was still holding the power back until one day I came across another ss/tc. He rolled down his window smiling and pointed at the open road ahead (I 65 north) I nodded and he honked three times. From 60-120 I pulled at least 2 car lengths on him. I got off the interstate and went to a marathon station and he pulled up next to me. He was like WTF you got NOS. So I showed him my trunk full of atleast 400 lbs of tools no room for nos. I explained how to do the wastegate mod.
Maybe he was really slow at shifting I don't know but my car feel faster to me. I need to go to the track and make a few passes stock then with the mod and findout.
Here is where I found out about the mod
http://www.solsticeforum.com/forum/f...eration-40699/
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Joined: 08-10-08
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From: Bolivia
I adjusted the wastegate rod to its shortest position and was running 24-25 psi for about 50 miles before the computer went into limp mode and threw an overboost code. During those 50 miles the power was nuts.
I backed the rod off so I run between 19 and 20 psi. I wondered if the computer was still holding the power back until one day I came across another ss/tc. He rolled down his window smiling and pointed at the open road ahead (I 65 north) I nodded and he honked three times. From 60-120 I pulled at least 2 car lengths on him. I got off the interstate and went to a marathon station and he pulled up next to me. He was like WTF you got NOS. So I showed him my trunk full of atleast 400 lbs of tools no room for nos. I explained how to do the wastegate mod.
Maybe he was really slow at shifting I don't know but my car feel faster to me. I need to go to the track and make a few passes stock then with the mod and findout.
Here is where I found out about the mod
http://www.solsticeforum.com/forum/f...eration-40699/
I backed the rod off so I run between 19 and 20 psi. I wondered if the computer was still holding the power back until one day I came across another ss/tc. He rolled down his window smiling and pointed at the open road ahead (I 65 north) I nodded and he honked three times. From 60-120 I pulled at least 2 car lengths on him. I got off the interstate and went to a marathon station and he pulled up next to me. He was like WTF you got NOS. So I showed him my trunk full of atleast 400 lbs of tools no room for nos. I explained how to do the wastegate mod.
Maybe he was really slow at shifting I don't know but my car feel faster to me. I need to go to the track and make a few passes stock then with the mod and findout.
Here is where I found out about the mod
http://www.solsticeforum.com/forum/f...eration-40699/
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Joined: 05-14-08
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From: around the world
The wastegate mod doesnt really work for long, if you do some data logging you'll notice the power back to stock after a couple of days. The ecm calls for a specific amount of airflow, if its higher than its supposed to be it'll lower the boost. Its smarter than the average bear.
Thread Starter
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From: Bolivia
The wastegate mod doesnt really work for long, if you do some data logging you'll notice the power back to stock after a couple of days. The ecm calls for a specific amount of airflow, if its higher than its supposed to be it'll lower the boost. Its smarter than the average bear.
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From: around the world
Yes it will make more boost since its a mechanical adjustment, i've logged the data before and after the mod and the car ran quicker thru the same rpm. But since the ecm controls the amount of airflow it needs it will simply lower the boost back to stock since it has full control of the boost solenoid. When i logged my car couple weeks after the mod it was back to stock boost.
The solstice guys have been playing with this mod for over a year, and while it helps in the beginning in the end you'll be back to stock power levels.
The solstice guys have been playing with this mod for over a year, and while it helps in the beginning in the end you'll be back to stock power levels.
Thread Starter
New Member
Joined: 08-10-08
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From: Bolivia
Yes it will make more boost since its a mechanical adjustment, i've logged the data before and after the mod and the car ran quicker thru the same rpm. But since the ecm controls the amount of airflow it needs it will simply lower the boost back to stock since it has full control of the boost solenoid. When i logged my car couple weeks after the mod it was back to stock boost.
The solstice guys have been playing with this mod for over a year, and while it helps in the beginning in the end you'll be back to stock power levels.
The solstice guys have been playing with this mod for over a year, and while it helps in the beginning in the end you'll be back to stock power levels.
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Joined: 05-14-08
Posts: 1,023
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From: around the world
In the end you need hptuners software to tune the car, sticking a boost controller with a bandaid map clamp is not the way to go with this complex ecm.
$500 gets you everything you need to make hp on the lnf now, almost everything is unlocked including boost and rpm control.
Around 15psi stock, after the mod it hit around 18psi, in a couple weeks it was back down to 15psi with the wastegate mod. This ecm is made by bosch, totally different animal.