Turbo header ?? Log vs collector vs ta style

[20psiofevil]

I'm getting ready to build a new hot side for the new turbo and had some questions. I really like the ta style to keep heat out of the engine bay vs traditional forward facing setup. If you were building a setup would you go with typical collector style, log style, or try to copy the ta style?

Here are a couple setups I've built for other people and the ta style I'm debating on building next for my car.

 

[20psiofevil]

1 5/8 primarie tubes, 2.5" cross-over, and 3.5" down pipe dumping out front bumper this time. Also the turbo is the standard 91/79 88 ar t4.

 

[bison]

I would wrap around the front if I was using a twin scroll. Otherwise I'd use the same setup a stock turbo regal does. I would keep the tubing pre turbo as small as possible without any port restriction at the flange. I'd probably use good 2 1/4 crossover tubing. There's very little power in playing with the tubing. Trying to equalize the ex tubing will increase tubing length and drop ex energy before the turbo and spool slower though it might increase power a little.


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[20psiofevil]

Open t4 with .88 Ar back housing. Thought about doing twin scroll but I don't see the benefit on a v engine vs a properly built header and Cross over. Open to hear opinions though cause I could be way off base lol.

 

[20psiofevil]

Copying the ta design except it will have external wg, 2.5" cross over ( since I have v-bands for this size), and a t4 flange vs the typical 3 bolt run on the turbo regal. Will also share my data on this thread with this turbo over my previous 6262 3 bolt turbo that was on it. I measured the 366 outlet and is 3" so instead of doing a 3.5" down pipe I'm sticking with a 3". Also welding a 3" v-band onto the marmon sytle to save me some coin. $33 for 3" vband assembly vs $70 for the marmon style flange is a no brainer for me. I'll kick this off with some turbo porn and sizing comparison.

 

[20psiofevil]

My shit from Race parts come in today:0. Wanted to use their self aligning v bands so picked up 2 of these jewels, very nice! The tubing is beefy 11g. Going to start on the hot side this weekend.

 

[20psiofevil]

Driver side header started.

 

[20psiofevil]

Try this again.

 

[20psiofevil]

First weld on this kit. Using .035 flux and it's creating a few pin holes. Think there may be to much heat so I'm going back to .030 and turn it down.

 

[20psiofevil]

Getting closer. Really like these style v band clamps but the flanges don't seal for crap. Glad I could use them with the race parts self aligning flanges.

 

[20psiofevil]

Got it all tached under the car so it fit goodntight. All geared up in my welding jacket! did not get burnt even though that shit was splashing down on me lol. The crossover fits about 3/16" away from the trans. The passenger side header turned out pretty good although I did not take any pics yet. Next step is mounting turbo then exhaust. Doing a front bumper dump so no more work under the car!

 

[20psiofevil]

Got the 3 coats of vht on it. Will do the cure process tomorrow since it takes about 3 hours.

 

[20psiofevil]

Turbo headers, it's whats for dinner

 

[20psiofevil]

Cut the marmon flange off in favor of standard 3" v band style down pipe for future turbo swaps this is easier. Was going to take it to work and weld the flange on with a 6013 stick welder because my arch is much cleaner but impatience got the better of me so I used my flux mig here at home. having hard time deciding the orientation I want to mount the turbo. Off the manifold straight down or up. If I go straight down I'll have to use a scavenge pump because it sits below oil level. Personally turned down will look cleaner IMO. Any opinions on orientation?

 

[20psiofevil]

I killed me doing this lol. I was able to use my magnaflow muffler, 14" long tube.

 

[ZNix]

Im looking forward to your results with the BW366. I was looking at that turbo for a 3800 Series 2 build.

 

[20psiofevil]

I remember reading a few months ago someone is using the s366 compressor in a 3bolt configuration. Also what bullseye is doing is cutting the exhaust wheel down to fit inside a t3 housing. I think the benefit is the larger wheel with this turbo and the off the shelf unit is the way to go unless you get the billet wheel version.

Dug up some pics of my motor when it was fresh and also finished the hot side.

 

[ZNix]

I remember reading a few months ago someone is using the s366 compressor in a 3bolt configuration. Also what bullseye is doing is cutting the exhaust wheel down to fit inside a t3 housing. I think the benefit is the larger wheel with this turbo and the off the shelf unit is the way to go unless you get the billet wheel version.

Dug up some pics of my motor when it was fresh and also finished the hot side.

Honestly, I would go 4-bolt. 3-bolt is nice if you want to keep everything stock looking, but I don't care lol. I might convert to a 4-bolt set-up soon.

 

[20psiofevil]

This is the way to go!! Also my merge is 2.5" going into 2.75" pipe messaged to fit the 2.5". Worked out decent.

 

[20psiofevil]

Figured I throw some pics of this turbo up since it was apart for clocking.