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    4L80E Install?

    Has anyone put a 4L80E in one of our TTA's or any other 3rd gen? I've checked around and there are a few that have. Just looking for as much info as I can get. I'm stepping up in power and still want an overdrive that doesn't use TV for line pressure control. Electric shifting seems the best...
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    New Precision 6870 for sale!!!!!

    Robert is great to work with. The turbo was just as he described and in excellent condition. Communication is key when buying something from someone you don't know, especially when it's expensive. He let me know when the payment arrived and within a day the turbo was on it's way. I wanted to...
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    Ported TTA Heads For Sale

    I have a set of ported 25527515 cylinder heads for sale. I'm stepping up for more power otherwise i would never have removed them. They have less than 5000 miles and will support 10 second power with no problem. Here is what they have: Ferrea stainless 1.77 Int & 1.50 Exh valves Comp Cams...
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    Ported TTA Heads For Sale

    I have a set of ported 25527515 cylinder heads for sale. I'm stepping up for more power otherwise i would never have removed them. They have less than 5000 miles and will support 10 second power with no problem. Here is what they have: Ferrea stainless 1.77 Int & 1.50 Exh valves Comp Cams...
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    TTA Pistons with Rods

    Hello all, I'm looking for 2 stock TTA pistons with rods if anyone has a couple left over from a past upgrade. Thanks, Jer
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    Looking for busted TTA head

    Looking for a busted TTA head to cut in half. Want to see how thick the intake and exhaust areas are relative to water. Thanks, JB
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    Power Antenna Replacement

    Does anyone know if part # 88891020 replacement power antenna is wired correctly for our TTA's? I installed the antenna with no problem, but it seems the antenna is internally wired differently than the original. I have power on the white wire with radio off. I have power to the green wire...
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    Aeromotive 340 fuel pump ?

    Happy New Year Everyone, Anyone know which of these pumps is in the TTA? The 11140 has both the inlet and outlet centered. The 11141 has an offset inlet and a centered outlet. The 11142 has both an offset inlet and outlet that are in-line with each other. I haven't dropped the tank yet and...
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    Cold air intake?

    Would anyone have a 4 inch cold air intake pipe for a TTA they were willing to sell. Stationed in Germany and have a short time while stateside. Thanks. JB
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    Cold Air Intake?

    Would anyone have a 4 inch intake pipe for sale? Stationed in Germany and have limited time with my TTA when i'm stateside. Thanks. JB
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    Stock Turbo Exhaust side oil leak?

    Can anyone tell me what usually happens when the turbo oil seal leaks on the exhaust side? I'm currently stationed overseas and my dad has a 26 thousand mile original TTA that starting smoking heavily after coming out of storage. I had him pull the the up pipe off the throttle body and he found...
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    Big Thanks to Otto's Performance

    Big thanks to Otto and Bison. They not only found and corrected multiple problems with my TTA, but also took the time to explain why things were off and what could be done to correct them. I learned a great deal about how these cars work and also what could be done to improve the combo in the...
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    Torque Converter Issues

    Hey guy's, I have a question on a 9/11 TCS converter i just installed in a friends car. The converter is used with less than 500 miles from my TTA. Professionally flushed before the reinstall. It's a 87 GN w/stock trans that had zero issues before the swap. Only mods to the trans are a...
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    Rod/Main bearing question?

    May be a stupid question, but are the TTA rod and main bearing the same as the the gn 3.8's? I ask because of the differences in the cranks. I haven't seen a specific part # out there for the TTA 3.8, but i wanted to be sure before placing an order. Thanks. JB
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    Optimal Motor Temp & plug type?

    I'm curious about what others are running for thermostats and plugs. I'm currently running around with a 160 thermostat and R42LTS plugs with alky. Anyone else running this combo and have you had trouble with plugs fouling or tuning issues? Thanks, JB
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    Detonation Prob Solved!

    I just thought that this would be important for those new to the turbo TA world like me and have an alky set-up. Past couple months i've been getting increased detonation at 8 to 10 pounds of boost and it was steadily getting worse. I checked my alky pump and wiring especially the map...
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    Stock front neopreme seal install

    Have a question on the install of the neopreme front seal on a stock cover. I set this up last night to let the RTV dry, but this morning the when i tried to install the balancer it was very tight and actually rolled the seal lip over. I lubricated the seal lip and the hub of the balancer...
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    Cometic Head Gasket Leak!!!

    Pulled the motor over the winter due to a blown stock head gasket on #2 cylinder. Decided to add a roller cam and ported heads. I must have talked to a dozen people on head gasket advice and finally settled on Cometic. I was warned to use copper spray on the outside and in between the...
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    Charging Issue?

    I'm having a charging problem. When the motor is cold i get 13.4 to 13.6 volts on the scan master. After about 10 minutes of driving the voltage drops to 11.8 to 12.0. Shut the car off for a few minutes and start it again the charging voltage will be 13.4 to 13.6. I've changed to another...
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    TTA Cylinder head torque specs?

    Hello everyone, I've had a TTA for a little while now and have learned a ton of info from this page. Unfortunately, I don't have a shop manual. I've used the torque specs sticky at the top of the page a number of times, but it doesn't include torque specs or the torque sequence for the...
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