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Hi guys, I was wondering if you think the big turbo is worth the power? I plan on keeping the st as a daily driver and getting a big power project car. I was wondering for the people who did go big turbo if you enjoy it and if it takes away from the daily ability of it? I have a turbo back exhaust, cold air intake, tune, and lowing springs already. Any opinions welcome, thanks guys :)
 

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Hi guys, I was wondering if you think the big turbo is worth the power? I plan on keeping the st as a daily driver and getting a big power project car. I was wondering for the people who did go big turbo if you enjoy it and if it takes away from the daily ability of it? I have a turbo back exhaust, cold air intake, tune, and lowing springs already. Any opinions welcome, thanks guys :)
One word=yes! A gtx2867r series or similar is an excellent streetable sized turbo setup and perfect match for a DD car.
 

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I would never go back. Personally, I think the car should have come with a comparable turbo to the EFR 6758 or GTX 2867r. I get 20+psi by 2800rpm, and make over 400whp. I daily my car, and it's great around town and on open roads where you can have fun.
 
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Big turbos sound more worth it now because of the good things I keep hearing about Cobb Traction Control.
 
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Big turbos sound more worth it now because of the good things I keep hearing about Cobb Traction Control.
I can confirm this. I just bought an ST with a 2867 already installed. At first I was worried I was I was going to have to spend thousands of dollars on tires because of all the wheelspin. I had Randy from Mountune put on the Cobb TC and now I can pretty much floor it in any gear and keep traction. It's definitely a game changer.

And yes, the BT is worth it for a DD especially if you do a lot of freeway driving. Being able to drop it into third or fourth gear at higher speeds and just blow by other cars with that exhaust howling is something you can never come close to with the stock turbo.
 

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If spending the money makes sense to you, then hell yes the big turbo is worth it! It's probably going to be a year or so before I can feasibly do it. But I can't wait.
 

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Hi guys, I was wondering if you think the big turbo is worth the power? I plan on keeping the st as a daily driver and getting a big power project car. I was wondering for the people who did go big turbo if you enjoy it and if it takes away from the daily ability of it? I have a turbo back exhaust, cold air intake, tune, and lowing springs already. Any opinions welcome, thanks guys :)
As a DD I think going with gtx 2863 or smaller for a little more go. I have a bigger turbo (gtx2971) Fun racing around, but is a TERRIBLE dd. To get the power to the ground you need mounts which take away the dd feel. (massive vibrations) if you dont get the mounts then you get engine bang. Then you need good tires or you spinning. Coming from someone who has it. I would not get a big big turbo if you plan on dd and getting a real race car.
 

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As a DD I think going with gtx 2863 or smaller for a little more go. I have a bigger turbo (gtx2971) Fun racing around, but is a TERRIBLE dd. To get the power to the ground you need mounts which take away the dd feel. (massive vibrations) if you dont get the mounts then you get engine bang. Then you need good tires or you spinning. Coming from someone who has it. I would not get a big big turbo if you plan on dd and getting a real race car.
Awwww crud. I'm looking at a gtx2971 as a daily if I go BT. Just figured I wanted a bit more power than the 2867, but if power delivery is meh then maybe not so much


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Awwww crud. I'm looking at a gtx2971 as a daily if I go BT. Just figured I wanted a bit more power than the 2867, but if power delivery is meh then maybe not so much


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oh no, there is power. but its hard to put to the ground and without mounts and everything else that goes with it. Just not a comfortable dd. That's why i say go smaller. Track is a different story.

 

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I saw that video, your car definitely rips. What rpm do you hit boost at?


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IMO if I were you, i'd throw down on bigger pistons, stronger rod's (I beam rods) and bore out. Put the OEM stuff back on and enjoy more powa. Later on when you have enough monies for a turbo, (go big) stick that puppy on and fly like the wind (safely)
 

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Holy **** that ST in the video hooks up!!! whos car is that? Is there a build thread for it?
 

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Can you post a full mod list? Nice car man!

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Bt is where it's at.Nothing like having the power to beat v8 cars like a chevy ss,5.0 stang or grandpa in a vette.:)
 
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I've been BT since June, and the car is my DD.

I wish I had saved my money and bought a different car. gtx2867R, AEM WMI, catless DP, Cobb 3" exhaust. Tial Q, with cold charge pipe. Cp-E FMIC. and I'm barely over 350hp/350tq on Vdyno. I'm still tuning with Stratified and have been since early June. Honestly, I'm about 11k into the car, with everything, suspension, brakes, performance upgrade, racing harness, spare brakes and tires for the track, green filter, brake cooling ducts, pretty taillights, DLR fog lights, etc, etc. and I'm still slower than a stock Mustang. Even the 335I BMW is faster.

Building the car has been fun, and I've met some pretty cool people with a local group (NWST/RS) up here. But, had I known what I was going to get into, then, I would have bought a 5 yr old Z06 for the same price.

Its a fun car, the upgrades such as the BT change the power band. Actually, I've been getting better gas mileage with the 2867r. I think its because I'm not in the turbo as much. Eventually, you get used to the power and of course want more. I've realized I've reached the end of my build. It already has too much power for the track. I spin the wheels while unwinding out of the corners. So, adding forged pistons, an aux fuel system, etc. really isn't worth the effort or additional 5k.

Reliability.. I bought all of my parts new. Last week, the turbo exhaust flange lost 3 out of the 5 bolts, causing the downpipe and flange to come loose from the turbo. I didn't notice it until I started getting headaches from the carbon monoxide entering the cabin. Actually, it was my wife that noticed first. I don't think ATP tightened these bolts at the factory. The AEM system is about 2 months old (brand new) and the tank fuel sensor stopped working. I've also have had to buy a replacement nozzle housing after it clogged so badly that even pressurized air couldn't clean it. The catless downpipe smells... Plain and simple. I guess the catalytic converter has a functional purpose after all. I got used to it, but those unspent gases do find their way into the cabin. The car always smells rich, probably due to the tune and the colder plugs in city driving. It does go leaner at WOT, but downtown, I believe the plugs are fouling. I may go back to the stock heat range and just keep the NGK's for track day.

I'd recommend looking for someone local who has a BT build and see if you can get a ride first.
 
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