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Old 05-06-2018, 01:15 PM   #26
oldschoolvolvo
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A 16T will work fine with stock turbo exhaust (with or without 3" dp). You will be able to free up some more hp if/when you upgrade the rest of the exhaust to 2.5" or 3" in the future. It is all up to what your goals are with the car.
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Old 05-06-2018, 03:22 PM   #27
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A 16T will work fine with stock turbo exhaust (with or without 3" dp). You will be able to free up some more hp if/when you upgrade the rest of the exhaust to 2.5" or 3" in the future. It is all up to what your goals are with the car.
Thanks. Sorry for all the questions. I just want to cover all the bases so I know every angle.

My goals are not to make it a race car, but just a fun EOD driver. Something that has speed and quickness but not a 12 second quatermile times. I'm aiming to be somewhere around 200HP - 220HP while not blowing my trans, clutch and gears. I want to stay within limits of what the trans, clutch et all can handle.
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Old 05-08-2018, 02:12 AM   #28
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Thanks. Sorry for all the questions. I just want to cover all the bases so I know every angle.

My goals are not to make it a race car, but just a fun EOD driver. Something that has speed and quickness but not a 12 second quatermile times. I'm aiming to be somewhere around 200HP - 220HP while not blowing my trans, clutch and gears. I want to stay within limits of what the trans, clutch et all can handle.

Lol, famous last words, I started with the same intent until I broke 2 transmissions and upgraded to a T5.
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Old 05-15-2018, 09:26 AM   #29
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Thoughts on this application: 16T, 3" downpipe ---> temp stock exhaust @ 10psi and eventual 2.5" exhaust?
perfectly fine, in fact, the 780-turbo-16V (B204FT/GT, 200hp) has a similar setup stock, straight from the factory.
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Old 05-15-2018, 12:06 PM   #30
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Is it possible to mount a 3 inch downpipe to the TD04-12B stock turbo on the 740T?
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Old 05-16-2018, 08:07 AM   #31
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Is it possible to mount a 3 inch downpipe to the TD04-12B stock turbo on the 740T?
Yes, anything is possible, but why?

I have a rare jao downpipe ill sell you for 800$
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Old 05-16-2018, 09:35 AM   #32
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Is it possible to mount a 3 inch downpipe to the TD04-12B stock turbo on the 740T?
I assume they're asking so they can have the exhaust done now, and upgrade the turbo later.

Be cautious with this. Turbo's sit in different spots, and come with different exhaust housings.

THEORETICALLY if you wanted to you could do this though. I believe you'd need to change the flange going from the 12 to anything 15+ though.
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Old 05-16-2018, 10:58 AM   #33
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I assume they're asking so they can have the exhaust done now, and upgrade the turbo later.

Be cautious with this. Turbo's sit in different spots, and come with different exhaust housings.

THEORETICALLY if you wanted to you could do this though. I believe you'd need to change the flange going from the 12 to anything 15+ though.
That's basically what I was planning on doing. Get exhaust done now and turbo later but It seems like I might as well just wait to do them both at the same time
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Old 05-24-2018, 10:46 AM   #34
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A friend of mine is running 16v+t redblock @700PS+ with 2,5 cat back and as he checked - exhaust is not a restriction here so I would rather think about header flow and hot side of turbo to be restriction here.
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Old 05-25-2018, 04:29 PM   #35
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A friend of mine is running 16v+t redblock @700PS+ with 2,5 cat back and as he checked - exhaust is not a restriction here so I would rather think about header flow and hot side of turbo to be restriction here.
Speaking of "hot side", I'm buying a 15g turbo from another member on here and one of the concerns was the "hot side/cold side" issue. I tried researching this but there isn't any actual detailed explanation of what they are... so, with the 15g on a b230ft engine, whats the deal with hot side/cold side?

I have to delay the buying for about a week due to family stuff but in the meantime id like to gather some info. I have to reclock it as well and ive never done that before
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Old 05-25-2018, 04:37 PM   #36
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cold side is the exhaust coming out engine
hot side is the exhaust coming out turbo
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Old 05-25-2018, 04:39 PM   #37
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cold side is the exhaust coming out engine
hot side is the exhaust coming out turbo
Thanks
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Old 05-25-2018, 05:13 PM   #38
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no dude im trying to fuk you up

just do basic google search man

https://www.google.com/search?rlz=1C....0.AyvEWG0jX3U
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Old 05-25-2018, 05:22 PM   #39
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no dude im trying to fuk you up

just do basic google search man

https://www.google.com/search?rlz=1c....0.ayvewg0jx3u
I trusted you! You were the chosen one!
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Old 05-25-2018, 09:49 PM   #40
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What is the hot side/cold side "issue" that you are concerned about?
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Old 05-29-2018, 03:43 AM   #41
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if you like to do some study into turbocharging in general i suggest you read the book 'Maximum boost' written by Corky Bell
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Old 05-30-2018, 01:43 PM   #42
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Originally Posted by Janspeed View Post
if you like to do some study into turbocharging in general i suggest you read the book 'Maximum boost' written by Corky Bell
Thanks for the link. Car is already turbocharged but want to upgrade at a later date like mentioned, although, from what Ive been thoroughly looking at, I might hold off on the larger turbo to extend the longevity of my car
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Old 05-30-2018, 02:01 PM   #43
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Street turbocharging by warner is another good turbo information book to read. I like it more because it is a more recent publication and has more modern tech in it. In the end though if you really want to know a lot you'll want both books.

Also a properly sized bigger turbo could help the engine last longer since it won't add so much heat when compressing the air. Of course that depends on factors like the amount of boost and the intercooler used.
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