I was wondering this too, that will be a huge amount of intense heat confined to an already hot engine bay. Some venting via the hood is probably the easiest way to help that problem out, are there any additional cooling plans right now?

is my understanding correct to say the single turbo will reach full boost later than two twins? and will produce more power up top but sacrifice low end power and torque? :\

I think for $6k it could be done even with a profit margin!

I'll shoot high......
Turbo Charger - GT35R - $1500
Wastegate - $300
Blow off Valve - $300
Intercooler core - $500
Misc oil fittings/lines/air filter - $400

You would have $3000 to fab:
Up pipe (turbo manifold)
Downpipe
Intake pipe
Intercooler end tanks
Intercooler piping

I understand the first kit would simply cost more, due to needing more time to produce. If you were to make jigs and make a seemless process. A single turbo kit would be priced perfect at $6k right with the superchargers, rather then $7800-8k for a twin kit.

It should take a bit longer to spool but I doubt it will be that much, you have to remember that both exhaust manifolds are spooling this single larger turbo, with twins you are using half the exhaust to spool a smaller turbo. The potential up top is much greater, I just hope Ryan doesn't plan on finding out without a built motor :icon17:

I don't think their reluctance to mass produce a kit has to do with profit margin. It sounds like they are not the type of company that wants to get involved in doing that kind of business for a product like this. They do custom work. If you want a mass produced kit, send these pics to a company that is in that line of business, and I am sure they will be willing to look into it if there is a market for it.

Very, very, very interested to see how this turns out. I love loud spools.

Your craftsmanship is second to none. Its hard to find someone that does nice work like this. Too bad you don't have any interest in making a jig for the piping. I think you would do well if you turned this into a kit :tup:

What I am wondering is, how even the air flow is going to be with one turbo to both throttle bodies?

Very interesting. I wonder how much lag it will have? What do you plan to use for tuning?

I'm also worried about the bracket for the turbo mount? I had the Turbonetics kit on my 350 and it had a small short piece of solid iron that held it up. I guess with the little extra support of the piping it will be ok.

See I caught him wit a right hook,
caught him wit a jab,
caught him wit an uppercut,
kicked him in his a*s.

:ughdance:

:confused:

1 turbo, 2 intake manifolds, will the pressure make it to both manifolds simultaneousnesly? if not does it make it hard to tune? Just wondering why more companies don't release a single turbo kit for around the same price point as a supercharger? What is the challenge with single turbo on a V6 dual inakes vs Twins? LOL sorry soo many questions but my knowledge is limited when it comes to this kind of setup.

Everything will be heat wrapped plus a turbo blanket, Setrab 24 row oil cooler, and an extra quart of oil with the oil pan spacer, all should be good!

Not necessarily. I'm pretty sure this setup is going to have better powerband as well as peak power than the twin setups I've seen to date.

$3,000 for fab, that woud be great if we were welding air together ;)

I'm not the kind of guy to sell the same thing to more than one person. I'll gladly build similar, but different, setups for the same platform. I'm not for mass producing them, especially for penny pinchers. You want my stuff, it's gonna cost what it's going to cost because it's something different than what everyone else has. My prices aren't cheap, they aren't what other kits cost, but they also aren't out in left field for the quality of the hardware. I've never had anyone that's seriously interested in a setup turn away because of price, however if you think it's going to happen for equal or less than an off the shelf, mass produced kit, you have the wrong idea

Thank you, I put alot of effort into everything I build! My hardware is built to the best of my abilities and also as if I were building it for my own car, as I would expect it, with the highest of expectations. I don't let anything slide with my hardware, it's exactly how it should be and nothing less!

I'm not designing this stuff in solidworks but I'm pretty damn good at fabbing this stuff how it should be regarding flow characteristics. The dual TB definitely tested my abilities but after seeing the charging piping done, intercooler to throttle bodies, I'm confident it will get the job done. If the tuner is able to tune accordingly with the dual blow through MAF's, then we are definitely set!

And with that, here's today's progress!

2.75" charge piping, 2.75" split to the passenger side TB, 2.5" to the drivers side TB. Passenger side has shorter route to take but also takes a tighter path to the TB. From the IC, the direct path is to the 2.5" drivers side piping. Not the most ideal piping split but the best possible solution for the room and hardware configuration

http://i19.photobucket.com/albums/b1.../IMG_6229R.jpg

http://i19.photobucket.com/albums/b1.../IMG_6231R.jpg

http://i19.photobucket.com/albums/b1.../IMG_6233R.jpg

http://i19.photobucket.com/albums/b1.../IMG_6234R.jpg

http://i19.photobucket.com/albums/b1.../IMG_6236R.jpg

OEM fans relocated in front of the radiator, polarity switched, now pusher instead of puller

http://i19.photobucket.com/albums/b1.../IMG_6239R.jpg

Manifold wrapped

http://i19.photobucket.com/albums/b1.../IMG_6243R.jpg

Getting closer to having her feet back on the ground!

http://i19.photobucket.com/albums/b1.../IMG_6240R.jpg

Roomates for the night

http://i19.photobucket.com/albums/b1.../IMG_6242R.jpg

Looks amazing and I can't wait until the tuning starts!

awesome work! just curious, where do you plan on placing the MAF's?

Very nice Shawn!

OP, build is awesome! Car is gonna be amazing to drive!!

Off-topic real quick: Another car Shawn has built. 1.8L bored to 1.9L, built bottom end, built top half ready for 8500rpm (6800rpm stock), cams. HTA3076r turbo, all custom plumbing, custom intake manifold, full custom downpipe and exhaust, custom methanol tank, etc.

Shawn knows what he's doing! He does this for a living...obviously doing something right. I live in Illinois and took my car all the way to Florida to have Shawn work his magic on it.

http://i45.photobucket.com/albums/f9...irstDrive2.jpg

Plus the intake manifold he made.

http://i45.photobucket.com/albums/f9...4/DSC_0077.jpg

Pity no blow through avaliable for Z's......... or speed density ;-)

Damn, man taking it to the next level with this set-up and build... !!!!!

I was going to ask the same thing. Everything looks good so far cant wait for the results.

very nice work and the builder knows what he is doing. good job shawn

ryan, you still on track to have this thing out of the shop by next week?

grade A stuff

Not only does it look great, but the progress is quite fast too!

great progress, cant wait for the finish

Thanks again, everyone! The anticipation is building!

Yes sir, there's still a lot left to do...but it will be done. Since I am having it tuned locally, rather than 4hrs away like originally planned, it took A LOT of stress off of my/Shawn's shoulders. So even though it won't be tuned Saturday like originally planned, that's perfectly fine by me. Now Shawn has more time to complete everything and I have more time to get the appointment for the tune.

As Sean said, all the hot piping will be wrapped and I ordered a turbo blanket today. Also, thanks to Tony at Motordyne for 2nd daying my new hoses for the manifold!

coming along nicely. excited to see what kind of numbers you put down.

wow cant wait to see end results. should sound mean!

Beautiful fabrication work, the charge pipes are works of art! I really like the routing of the two intake charge pipes, can't wait to see the finished product especially with fabrication moving so quickly.

http://i45.photobucket.com/albums/f9...4/DSC_0077.jpg

wonder if you get flow separation at the far edges of this intake? The sudden expansion might ruin the flow characteristics there...a little.

then again, after X many years in aerospace, maybe I just need to learn the car engines just don't give as much of a sh*t hahaha

and so far the piping looks EXCELLENT for the Z. well done shawn :tup:

Will the stock cross brace still be used on this build?

It is a good observation as I'm sure you're very knowledgable on flow characteristics but I feel like this is the best design for the application. The OEM manifold is similarly designed just a smaller plenum. There are also aftermarket manifolds available very close to it that have been flow tested with nice gains. But good eye! Never really thought about it until now.

Now this is a build thread!!!

Nice to see a good build thread besides the usual "circus" build threads on here.

Congrats OP.

Thank you everyone for your comments and for your love of the build, it is greatly appreciated! 13 hours of work later today, it is farther than yesterday however didn't even get a chance for more pictures! Hopefully after another 12 hour day tomorrow we can wrap this up! I was about to tell Ryan it would be done tomorrow until he stopped by this afternoon and pointed out to me I forgot to install the upgraded hydraulic throw out bearing, down the gearbox will come again tomorrow! Going to do everything I can to roll this car out tomorrow, if not it will be buttoned up on Monday and ready for tuning! I'll get some more pictures up tomorrow, thank you all again for your comments and input, stay tuned!

-Shawn-

It sure will! :)

Let the tuning be-gain!

Are the oem fans gonna fit back in there? Looks pretty tight from the pics, but could be the angle.

Also, to someone who mentioned using a GT35R for their theoretical 370 ST kit- IMO, a GT35R would be too small for a 3.7l engine revving as high as it does. A 37R would be a better choice, if you're stuck on Garrett.

If they were using a GT35 it is a nice size for sure for sure. Im sure you can get 450whp with a GT35 if not a good 550whp. A GT37 would lag just a tad more than the GT35.

you can for sure hit 550whp on a GT35R

Thats what I was thinking!

Chris, I agree. The 350z ST Kits with the GT35R were being topped out, and thats with less displacement. (For those that don't agree, check out m y 3 5 0 z . c o m for details) The search function is your friend, so use it. The 3.7 will definitely benefit from the GT37R.

As for this "build," great welds and craftsmanship. I tip my hat. :tiphat:
Your work is worth a good chunk of change. Custom = Top Dollar. Good sh!t.

Chris, the OEM fans were moved to the front of the radiator. I like what Shawn did with this. He also placed the oil cooler where the OEM fans used to be. So the fans will be blowing into the radiator and will also be cooling the oil cooler as well, even though the oil cooler will not be getting fresh air flow.

http://i19.photobucket.com/albums/b1.../IMG_6236R.jpg

maybe fab a small scoop to go under the car and channel fresh air up to the oil cooler from underneath? wouldn't take much...