Nissan 370Z Forum

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-   -   Boosted Performance single turbo build (http://www.the370z.com/forced-induction/52577-boosted-performance-single-turbo-build.html)

Boosted Performance 04-06-2012 11:04 PM

Quote:

Originally Posted by memorylasts (Post 1644943)
Looking good the only issue that i currently see is the tire/charge pipe clearance!

Looking forward to seeing this completed!

It is not bad at all, and that section of the charge pipe would be secured to the frame. There would be no chance the tire would ever hit it...at least not the stock tire/offset. Like I said, there is a good chance this will change.

I don't only show the goods stuff, there is always problem..and I share everyting.

memorylasts 04-06-2012 11:08 PM

Quote:

Originally Posted by Boosted Performance (Post 1644944)
It is not bad at all, and that section of the charge pipe would be secured to the frame. There would be no chance the tire would ever hit it...at least not the stock tire/offset. Like I said, there is a good chance this will change.

I don't only show the goods stuff, there is always problem..and I share everyting.

I meant to add you were already looking at it! lol i thought it but i didnt type it!


I wasn't trying to come in and offend you, you have produced the one kit that i have seen on the 350 and now for the 370, that i would really like to have in my possession, you do great work and from what i have seen i swear you have a robot arm for welding!(ref my350z.com) lol

JMac88 04-06-2012 11:10 PM

Maybe 14, 12 is a little harsh

Boosted Performance 04-06-2012 11:27 PM

Quote:

Originally Posted by memorylasts (Post 1644946)
I meant to add you were already looking at it! lol i thought it but i didnt type it!


I wasn't trying to come in and offend you, you have produced the one kit that i have seen on the 350 and now for the 370, that i would really like to have in my possession, you do great work and from what i have seen i swear you have a robot arm for welding!(ref my350z.com) lol

No offence taken, and thanks for the compliments...I do try..:tup:

Quote:

Originally Posted by JMac88 (Post 1644948)
Maybe 14, 12 is a little harsh

Sorry..:)

Cell 04-06-2012 11:51 PM

How would the clearance be with aftermarket rims or nismo rims?

I have a feeling this kit wouldn't work too well with a nismo exhaust setup. We also have the stabilizer bar in the front that may be in the way.

blackonorange 04-07-2012 02:33 AM

**** carb legal

Boosted Performance 04-07-2012 09:48 AM

Quote:

Originally Posted by Cell (Post 1644990)
How would the clearance be with aftermarket rims or nismo rims?

I have a feeling this kit wouldn't work too well with a nismo exhaust setup. We also have the stabilizer bar in the front that may be in the way.



How so? I have not even done any exhaust work yet, and it looks like it is the same as the regular OEM exhaust.

http://www.mossyperformance.com/Prod...z_exhaust2.bmp


Also, all cars have stabilizer bars...

Ron 04-07-2012 09:50 AM

just an fyi, that pic is of a nismo s-tune exhaust. The OEM nismo exhaust uses an h-pipe configuration.

Edit:
http://i576.photobucket.com/albums/s.../image0012.gif

http://www.the370z.com/members/equin...ck-exhaust.jpg

erkthejerk73 04-07-2012 10:14 AM

sasha im getting excited, im like a 12 year old girl!

Cell 04-07-2012 10:16 AM

sorry I didn't mean stabilizer bar. I meant the dampener bar.

http://www.liquidc4.net/images/oilco...1bumperoff.jpg

Ron posted the nismo exhaust. The S-Tune has the y-pipe.

As for the dampener, I don't think it is that important as it can be removed and wouldn't cause any problems.

Boosted Performance 04-07-2012 10:17 AM

^^^

Ahhh, I see that is different then. Cell is right, the down pipe would not bolt up to that.


With boost, an aftermarket exhaust is always a good idea anyway because the OEM mufflers are usually baffled too much, and impede flow. I have cut some apart, and they are just horrible as far as flow goes.

The Nismo may be better than a regular OEM exhaust, but still baffled. A true straight through muffler is best for forced induction.

Cell 04-07-2012 10:23 AM

Quote:

Originally Posted by Boosted Performance (Post 1645217)
^^^

Ahhh, I see that is different then. Cell is right, the down pipe would not bolt up to that.


With boost, an aftermarket exhaust is always a good idea anyway because the OEM mufflers are usually baffled too much, and impede flow. I have cut some apart, and they are just horrible as far as flow goes.

The Nismo may be better than a regular OEM exhaust, but still baffled. A true straight through muffler is best for forced induction.

:tup: agreed. Just brought it up because it popped into my head.

When, ever you go into production with your kit, I may end up having you make a custom exhaust setup with the kit. That is if you do not mind.

Dzel 04-07-2012 07:12 PM

As of right now I have CNT TP installed and had the resonators removed. Sounds pretty good to me throaty, little rasp at high RPM though. Now after this kit is installed on my car I would more than likley want to run a 3" all they way back with some type of resonators and a couple of invidia mufflers.

Boosted Performance 04-07-2012 09:09 PM

Update day 3:

So I spent a lot of time screwing around with this charge piping going from the turbo to the FMIC, and I can finally say that I am very happy with the way it is turning out.

The section of pipe in front of the driver side wheel stays the same:

http://i137.photobucket.com/albums/q...d/IMG_7004.jpg

It does change after that, making a turn running behind the radiator:

http://i137.photobucket.com/albums/q...d/IMG_7005.jpg

Looping through to the back:

http://i137.photobucket.com/albums/q...d/IMG_7006.jpg


http://i137.photobucket.com/albums/q...d/IMG_7007.jpg

I am very happy with the clearances, but an oil relocation kit will be needed. When the car is down, the clearance increases even more because the sway bar dips down another 1.5”.


http://i137.photobucket.com/albums/q...d/IMG_7010.jpg

I think the hard part is now done. On the back end the exhaust will go smoother because there is much more room to work with. Now I just have to wait for the turbo to arrive. In the mean time I will be ordering an oil relocation kit, and building the charge piping to the TB’s.

Dzel 04-07-2012 10:35 PM

:tup: I have to say that I'm very impressed by your work ethic and dedication to this community.

Where are you thinking of putting the oil cooler

BAHUMAT2JZ 04-07-2012 11:07 PM

Once the kit is finish and tested let's do a group buy ;)

Ron 04-07-2012 11:44 PM

I need another Z just so I can put one of these kits.. good stuff Sasha.

memorylasts 04-08-2012 02:14 AM

Quote:

Originally Posted by Dzel (Post 1646027)
:tup: I have to say that I'm very impressed by your work ethic and dedication to this community.

X2 couldn't have said it better.

memorylasts 04-08-2012 05:06 PM

Im excited about this Kit...

Sasha i cant stop looking at your work... its art!

Boosted Performance 04-08-2012 05:14 PM

Thanks for the props guys...It can be very frustrating building a kit for these cars the way I would want it on my own car. It is easy to cut things up so it fits ok, but very difficult to make it so that it can be installed by anybody, perfect fitting, without having to cut/trim/remove anything that came with the car.

The charge pipes are looking good, will post some pictures of that later. Today will be a shorter day than the last two, I need some rest too. Hope to have the BOV's and MAF sensor bungs weled in tomorrow morning, and that would complete all the aluminum fabrication.

All the IC pipe ends will also be bead rolled, so there is no chance of ever blowing a coupler...ever.

I also emailed GTM about the oil filter relocation kit they have. Hope to hear from them tomorrow. I would need one for every kit.

memorylasts 04-08-2012 05:33 PM

Quote:

Originally Posted by Boosted Performance (Post 1646897)
Thanks for the props guys...It can be very frustrating building a kit for these cars the way I would want it on my own car. It is easy to cut things up so it fits ok, but very difficult to make it so that it can be installed by anybody, perfect fitting, without having to cut/trim/remove anything that came with the car.

The charge pipes are looking good, will post some pictures of that later. Today will be a shorter day than the last two, I need some rest too. Hope to have the BOV's and MAF sensor bungs weled in tomorrow morning, and that would complete all the aluminum fabrication.

All the IC pipe ends will also be bead rolled, so there is no chance of ever blowing a coupler...ever.

I also emailed GTM about the oil filter relocation kit they have. Hope to hear from them tomorrow. I would need one for every kit.


+REP

Very thorough! Enjoy your time off!

Niztalgic 04-08-2012 05:43 PM

http://208.109.215.220/files/remotef.pdf

This should be where you can find what u need for the oil filter relocation.

SSjVegita 04-08-2012 06:59 PM

subbed

Boosted Performance 04-08-2012 08:12 PM

Quote:

Originally Posted by Niztalgic (Post 1646924)
http://208.109.215.220/files/remotef.pdf

This should be where you can find what u need for the oil filter relocation.

Thank you for the link. It looks like the low profile one will work just perfect. I will give them a call tomorrow and see.

Boosted Performance 04-08-2012 08:23 PM

Now for day 4 update:

As mentioned earlier, I was working on the charge piping. The key here was symmetry, and it worked out great. The pipes going through the front rad support are 2.5”, and then switch to 2.75” diameter once in the engine bay. The MAF sensors will be as close to the TB as possible (or as far as the plug will reach). This is important because the sensor should be on in far away from any diameter transitions and turbulence, like those that the BOV would cause.

Enough blabber, on to the pictures:

http://i137.photobucket.com/albums/q...d/IMG_7019.jpg

http://i137.photobucket.com/albums/q...d/IMG_7014.jpg

Driver side:

http://i137.photobucket.com/albums/q...d/IMG_7015.jpg


Passenger side:

http://i137.photobucket.com/albums/q...d/IMG_7016.jpg


Couple of random shots:


http://i137.photobucket.com/albums/q...d/IMG_7018.jpg


http://i137.photobucket.com/albums/q...d/IMG_7017.jpg


Like I mentioned, the BOV’s will go in tomorrow along with the MAF sensor housings. The turbo will also arrive tomorrow, at which point the stainless fabrication can begin. I am also looking at including an oil pan spacer with an oil drain plug. Not sure who has the best deals on those, so I will have to look around.

DIGItonium 04-08-2012 08:41 PM

Wow... that's a work of art!

Deadman 04-08-2012 08:51 PM

Yep.. looking good man ! Anxious for this to get finished and let the orders start rolling in !

memorylasts 04-08-2012 09:00 PM

Awesome :tup:

Thank you so much for this!

theaudir8fan 04-08-2012 09:02 PM

Hey Sasha, great progress, but I can't help but wondering if you are routing the turbo to IC pipe all the way across the front, why not consider just flipping the IC so the pipe goes into the IC on the passenger side instead? It would save a bit of piping.

Staples 04-08-2012 09:05 PM

Wow it's coming along very nicely! The 2.75" piping will be plenty of diameter to flow for a stock block, plus more. I can't wait to see what else you have in store.

Boosted Performance 04-08-2012 09:07 PM

Quote:

Originally Posted by theaudir8fan (Post 1647263)
Hey Sasha, great progress, but I can't help but wondering if you are routing the turbo to IC pipe all the way across the front, why not consider just flipping the IC so the pipe goes into the IC on the passenger side instead? It would save a bit of piping.

There is just no opening to go through to the other side. The washer fluid tank takes up all the room. I did think about it a lot, and looked at the option as well. One would have to mess around with a lot of stuff on that side to make it work.

I is very simple to make the piping as well, so I am not worried abou it. It will also be very simple to install.

theaudir8fan 04-08-2012 09:13 PM

Quote:

Originally Posted by Boosted Performance (Post 1647268)
There is just no opening to go through to the other side. The washer fluid tank takes up all the room. I did think about it a lot, and looked at the option as well. One would have to mess around with a lot of stuff on that side to make it work.

I is very simple to make the piping as well, so I am not worried abou it. It will also be very simple to install.

Oh i see, still loving your work :tup:
Also greddy's oil pan would be a great addition to the kit, it's better then having just a spacer.

If i had a manual G, I would be handing over the keys for you to put this kit on :D

ZSIZZLE 04-08-2012 09:37 PM

great work!!

biggersNISMO 04-08-2012 10:15 PM

Great to see you on here Sasha. I mentioned your great work on this forum 2 years ago. http://www.the370z.com/720536-post35.html People just laughed.... Now they know you're a miracle worker.

Boosted Performance 04-08-2012 10:34 PM

Quote:

Originally Posted by biggersNISMO (Post 1647382)
Great to see you on here Sasha. I mentioned your great work on this forum 2 years ago. http://www.the370z.com/720536-post35.html People just laughed.... Now they know you're a miracle worker.

Thanks, and yes, there are always skeptics, but that is mostly due to lack of knowledge/understanding of a complete system like this.

So far my customers are making more power with the mid mount on pump gas than any of the big guys (Powerlab, Turbonetics, APS, STS..ect) ever did. This is mainly due to the true T4 turbine housings, and billet cumpressor wheels. The turbo is closer to the headers than the top mount kits, but people don't see it...not to mention a much shorter down pipe.

blackonorange 04-09-2012 01:03 AM

I don't get this t4 turbine housing stuff :s

Dallaz 04-09-2012 02:20 AM

Quote:

Originally Posted by Boosted Performance (Post 1644219)
Don't get too excided, 370z will be more. There will be one extra wastegates, one extra BOV, one more intake (charge piping)...that alone is an extra $500 in parts, not to mention labor involved. This kit will also include an oil cooler..ect. Things add up in a hurry.

The exhaust piping is also much more complex with the twin scroll turbine housing vs open T4.

Gotta pay to play!


This kit looks great and your dedication to it as well, I mean, updates with this kind of information every day and pictures to go along with it after a long day of work in the shop?!?! :tiphat:


looking forward to future updates and the finished kit!

sinceday1 04-09-2012 07:54 AM

Quote:

Originally Posted by blackonorange (Post 1647809)
I don't get this t4 turbine housing stuff :s

I'll try to elaborate to the extent of knowledge.... (puts flame suit on)

T3, T4, T6... refers to the compressor size. Bigger the number, bigger it is but there are different dimensions entirely. Usually to reduce the lag, T3/T4 hybrid uses T3 hotside and T4 compressor so there can be expansion of some power due to T4 compressor and T3 hotside reduces lag to certain extent. It ultimately becomes limitation of the turbo in some cases...at same turbo rpm, the amount of gas T3 hotside will push will be smaller than that of true T4 thereby becoming the limitation. A/R ratio also works to determine the spool speed. Bigger the A/R later the turbo spools but if compressor size is different, same A/R does not mean same spool speed. So the compressor size and AR numbers work in conjunction to determine the spool speed per se.

It's still all arbitrary nomenclature of the size..... no exact dimension is set up.. what really matters is CFM...

Boosted Performance 04-09-2012 09:19 AM

Quote:

Originally Posted by sinceday1 (Post 1647943)
I'll try to elaborate to the extent of knowledge.... (puts flame suit on)

T3, T4, T6... refers to the compressor size. Bigger the number, bigger it is but there are different dimensions entirely. Usually to reduce the lag, T3/T4 hybrid uses T3 hotside and T4 compressor so there can be expansion of some power due to T4 compressor and T3 hotside reduces lag to certain extent. It ultimately becomes limitation of the turbo in some cases...at same turbo rpm, the amount of gas T3 hotside will push will be smaller than that of true T4 thereby becoming the limitation. A/R ratio also works to determine the spool speed. Bigger the A/R later the turbo spools but if compressor size is different, same A/R does not mean same spool speed. So the compressor size and AR numbers work in conjunction to determine the spool speed per se.

It's still all arbitrary nomenclature of the size..... no exact dimension is set up.. what really matters is CFM...

No...:)

It is much easier to link:

http://www.turbobygarrett.com/turbob...Tech%20101.pdf

http://www.turbobygarrett.com/turbob...Tech%20102.pdf

http://www.turbobygarrett.com/turbob...Tech%20103.pdf

To be more specific to the question:

Quote:

Turbine A/R - Turbine performance is greatly affected by changing the A/R of the housing, as it is used to
adjust the flow capacity of the turbine. Using a smaller A/R will increase the exhaust gas velocity into the turbine
wheel. This provides increased turbine power at lower engine speeds, resulting in a quicker boost rise. However,
a small A/R also causes the flow to enter the wheel more tangentially, which reduces the ultimate flow capacity of
the turbine wheel. This will tend to increase exhaust backpressure and hence reduce the engine's ability to
"breathe" effectively at high RPM, adversely affecting peak engine power.
Conversely, using a larger A/R will lower exhaust gas velocity, and delay boost rise. The flow in a larger A/R
housing enters the wheel in a more radial fashion, increasing the wheel's effective flow capacity, resulting in
lower backpressure and better power at higher engine speeds.
When deciding between A/R options, be realistic with the intended vehicle use and use the A/R to bias the
performance toward the desired powerband characteristic.
Here's a simplistic look at comparing turbine housing geometry with different applications. By comparing different
turbine housing A/R, it is often possible to determine the intended use of the system.
Imagine two 3.5L engines both using GT30R turbochargers. The only difference between the two engines is a
different turbine housing A/R; otherwise the two engines are identical:
1. Engine #1 has turbine housing with an A/R of 0.63
2. Engine #2 has a turbine housing with an A/R of 1.06.
What can we infer about the intended use and the turbocharger matching for each engine?
Engine#1: This engine is using a smaller A/R turbine housing (0.63) thus biased more towards low-end torque
and optimal boost response. Many would describe this as being more "fun" to drive on the street, as normal daily
driving habits tend to favor transient response. However, at higher engine speeds, this smaller A/R housing will
result in high backpressure, which can result in a loss of top end power. This type of engine performance is
desirable for street applications where the low speed boost response and transient conditions are more important
than top end power.
Engine #2: This engine is using a larger A/R turbine housing (1.06) and is biased towards peak horsepower,
while sacrificing transient response and torque at very low engine speeds. The larger A/R turbine housing will
continue to minimize backpressure at high rpm, to the benefit of engine peak power. On the other hand, this will
also raise the engine speed at which the turbo can provide boost, increasing time to boost. The performance of
Engine #2 is more desirable for racing applications than Engine #1 where the engine will be operating at high
engine speeds most of the time.

sinceday1 04-09-2012 11:59 AM

Quote:

Originally Posted by Boosted Performance (Post 1648064)

I should've exercised the art of linking :( lol

Look forward to seeing your completed project.


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