Nissan 370Z Forum

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-   -   Rear mounted turbo kit (http://www.the370z.com/forced-induction/3105-rear-mounted-turbo-kit.html)

Brazilbro 03-31-2009 08:42 PM

Rear mounted turbo kit
 
http://i181.photobucket.com/albums/x...ilbro/sts4.jpg
http://i181.photobucket.com/albums/x...ilbro/sts1.jpg

what do you guys think of something like this for the 370?

RCZ 03-31-2009 08:55 PM

Loooong piping, intake near the ground and under the car where there is TONS of dirt and debris. There are some setups like that for GTO's and stuff, but it wouldn't be my first choice for the Z. There are more drawbacks than benefits...lots more.

Lug 04-01-2009 11:46 AM

Quote:

Originally Posted by RCZ (Post 50016)
Loooong piping, intake near the ground and under the car where there is TONS of dirt and debris. There are some setups like that for GTO's and stuff, but it wouldn't be my first choice for the Z. There are more drawbacks than benefits...lots more.

STS claims long piping actually adds to charge cooling. The problem is since you no longer have a muffler, you are kind of stuck with the sound it has plus the debris issue you've pointed out.
website...
Squires Turbo Systems - Turbocharged Innovation!
Thier dyno of a 350Z
http://pi.b5z.net/i/u/1473169/i/350Z..._6-7-8_psi.jpg

To me, the best thing is under hood overcrowding/heat issues are avoided. I'd be terrified to drive though a puddle though! :D

BanningZ 04-01-2009 11:51 AM

Quote:

Originally Posted by Lug (Post 50387)
STS claims long piping actually adds to charge cooling. The problem is since you no longer have a muffler, you are kind of stuck with the sound it has plus the debris issue you've pointed out.
website...
To me, the best thing is under hood overcrowding/heat issues are avoided. I'd be terrified to drive though a puddle though! :D

I would imagine that would be super LOUD! :eek:

Wouldn't driving through a puddle make the turbo explode/crack, because of the heat?

Lug 04-01-2009 12:29 PM

Quote:

Originally Posted by BanningZ (Post 50390)
I would imagine that would be super LOUD! :eek:

Wouldn't driving through a puddle make the turbo explode/crack, because of the heat?

Corvette with the STS system

http://www.youtube.com/watch?v=PQaFwSKesRI

RCZ 04-01-2009 12:32 PM

That sounds great tho haha.

Crash 04-01-2009 12:46 PM

Squires kits are over priced and garbage to boot. The idea is good if you can pull it off, but you can't drive when it rains. The long piping actually makes it so you don't need an intercooler. The sound isn't that loud. Turbos actually act like a muffler, which is why most turbo cars come with resonators instead of mufflers.

I wouldn't buy an STS product. You can build them yourself with better parts for half the price almost. Back in the days when STS gained a lot of popularity with them, nobody knew that they weren't that great, but they definitely make a lot of power with them. However, again, for the money they're really not worth it.

2fast4thelaw 04-05-2009 10:52 AM

Can you say Turbo Lag?? With that long of piping it would take for ever for that turbo to spool!

There is a specific reason why everyone mounts turbos right off the exhaust manifold/headers.

Crash 04-05-2009 09:32 PM

Actually, the lag really isn't as bad as you'd think. It really depends on the turbo(s) size. But you can get 500WHP from turbos without a lot of lag.

Brazilbro 04-06-2009 02:36 AM

and u get some weight in the back where you need it.. though i would have to build some kinda shielding to protect from water and whatnot

Crash 04-07-2009 04:38 AM

Yeah, there are a few kits that put the air filter further up. My biggest worry was always bottoming out and losing some expensive turbos! LOL

2fast4thelaw 04-07-2009 09:04 AM

Quote:

Originally Posted by Crash (Post 52437)
Actually, the lag really isn't as bad as you'd think. It really depends on the turbo(s) size. But you can get 500WHP from turbos without a lot of lag.

I checked out the website. Its interesting but I can see all kinds of potential problems with all that piping. And like someone said, where those turbos are located on most of these cars the rear tire is going to kick up water and mudd into the turbos. I dont see that these turbos are water cooled which really throws up a red flag to me.

rackley 04-08-2009 09:54 PM

Quote:

Originally Posted by Brazilbro (Post 50007)

:rofl2:

After seeing those photos I thought this was some kind of joke. That looks like a seriously hillbilly rigged setup right there.. Like someone had a turbo lying around and lots of piping and said "hey, let's mount the turbo where it's as far as possible from the engine and suck air from the pavement and see what happens!" after having way too many natty lights.

nogoodname 04-08-2009 10:04 PM

okay..........that is the weirdest thing i have seen.......lol


"i got turbos in the rear..".......lol.........drive through a puddle and you got a cloud behind you....ha

Crash 04-09-2009 03:40 AM

They don't need to be water cooled, actually. Some turbos are oil cooled to start, but because they're not located under the hood where heat builds up and it's hard to escape, they stay cooler. The air in the back of the car is much cooler. The kits all use a separate oil pump, oil cooler, and (I believe) reservoir. So the turbos do stay cool. However, I have heard that the STS oil pumps and what not are complete junk. (Just what I've heard) A self built kit would put that on you, though, so you could make a better oiling system.

BTW, I haven't heard of anyone that's had water, mud, etc problems.

Brazilbro 04-09-2009 12:04 PM

crash just a little of topic but have u met lela star?

nogoodname 04-09-2009 01:24 PM

^ yea. A bit off topic.


Potholes over here would wreck the turbos in the rears.

Crash 04-09-2009 07:40 PM

HAHA. Never too far off topic to talk about porn. :D But, no I haven't met her. Sorry.

Nogood, that's what I'd be afraid of too! **BUMP BUMP** "Boost = -1psi"

bigcloud 04-12-2009 03:21 PM

Quote:

Originally Posted by nogoodname007 (Post 54207)
^ yea. A bit off topic.


Potholes over here would wreck the turbos in the rears.

What logic are you using to come up with this statement? It's not like the turbo is hanging 2 inches from the ground. It's actually up there quite a ways.

Crash 04-13-2009 06:34 PM

They're not hanging lower than the muffler would, but just imagine that the hanger breaks when you hit a hard pot hole and the turbo smacks the edge of the pothole... I'm not saying that it's likely that this would happen, but it's still a thought.

I've seen some cool rear mount installs, though, that built the turbo into the muffler (to hide them for the most part) and fit just fine.

Boost_lee 05-05-2009 07:25 PM

lol i like the single turbine exhaust tip, along with the EWG dump out the other exhaust pipe

2bits 05-06-2009 04:49 PM

In before someone asks "Can I pass emissions testing with this setup?"

On a more serious note, this has got to be hell for ANY kind of cat. They run hot to begin with, but this... I imagine you'd have to run without a cat.

Zguy 06-06-2009 06:07 PM

You probably wont pass emissions with any turbo system.... and no I wouldnt run a cat with a rear mount system. A friend of mine has one on his 350 that we put together for about 3k. He has been running the piss out of it for about a year now with no probs. He has the VQ35DE and hit 390whp on 8psi.
He doesnt drive in the rain so no worry about water, and his filter gets just as dirty as before with it in the front. Plus he doesnt have to worry about moving power steering lines or frying anything that might be in the general vacinity of the turbo..... Oh and he is at full boost around 3200......

terrycs 06-07-2009 11:09 AM

The STS system is actually designed to be installed cat back. STS actually has the best chance of getting CARB certification and have already done so on several of their kits. I didn't go with STS because they have not done an HR/VHR motor yet.

For those thinking about being the first, here is a C&P from an email I got from them:

Hi Terry, Here is some Video of some of the 350-Z's and G-35's that we have out there..... Enjoy and let me know if you have any questions!!! Thanks,

1.) dead link

2.) http://www.ststurbo.com/sts_video

3.) YouTube - STS PROMO

4.) http://videos.streetfire.net/search/...4e012b0039.htm

5.) YouTube - g35nyc.com g35 coupe trubo leavein

6.) YouTube - Daniel's STS Rear Mount Turbo 350z

jmlenz 06-10-2009 05:23 PM

Hell, I say they make a 370 kit! The more FI options we have for the Z the better!

CBRich 06-10-2009 08:05 PM

This may not be the ideal solution for FI but could be a nice cheap and easy way to get big power.

Zguy 06-13-2009 11:42 AM

Well the problem for STS is that anyone who has half a brain and know about FI can fab their own kit up for WAY cheaper than what they are charging and with alot better quality. I have only seen 1 kit that came directly from them and I could have probably put something better together from a junk yard. The ONLY thing that STS has done right is the oiling system for the turbo but if you are mechanically inclined you can find a way to get oil to the turbo in the back of the car.....

kannibul 06-14-2009 09:42 AM

Quote:

Originally Posted by 2fast4thelaw (Post 52170)
Can you say Turbo Lag?? With that long of piping it would take for ever for that turbo to spool!

There is a specific reason why everyone mounts turbos right off the exhaust manifold/headers.

Proximity to lubricating oil, more than likely is the main reason.

One_Quick_Z 06-14-2009 09:44 AM

There is a guy on ChicagoZ my club forum that has it I have yet to hear it in person but he loves it again it wouldnt be my first choice though



DAN

kannibul 06-14-2009 12:02 PM

The thing that gets me is that people are strapping on a turbo (or any other forced induction) to an engine that has 11:1 compression. That's just asking for it to blow up...

I remember the rule of thumb is 8:1 for blowers. I can't imagine he amount of octane boost one would need to run for 11:1 to prevent detonation / pre-ignition, if it'd even run correctly on 91...(since the car already takes 91...)

I dunno, I guess I'm not THAT into power. This car will break loose with an automatic transmission up into 3rd gear...that's plenty of power. After that, it's a matter of getting it to the pavement and stay there...

gorillanismo 06-14-2009 02:55 PM

I think that isn't ok, it will take some water & dirt, so much turbo lag, more negative than positive...

k20z3 06-14-2009 03:06 PM

Thats dumb ... i think

terrycs 06-16-2009 10:33 AM

Quote:

Originally Posted by kannibul (Post 90715)
Proximity to lubricating oil, more than likely is the main reason.

Actually, STS has a patent on their oiling system. Check this out:

STS Turbo Systems Boosts the C6 Vette

terrycs 06-16-2009 10:44 AM

Quote:

Originally Posted by kannibul (Post 90769)
The thing that gets me is that people are strapping on a turbo (or any other forced induction) to an engine that has 11:1 compression. That's just asking for it to blow up...

I remember the rule of thumb is 8:1 for blowers. I can't imagine he amount of octane boost one would need to run for 11:1 to prevent detonation / pre-ignition, if it'd even run correctly on 91...(since the car already takes 91...)

I dunno, I guess I'm not THAT into power. This car will break loose with an automatic transmission up into 3rd gear...that's plenty of power. After that, it's a matter of getting it to the pavement and stay there...

Sure it will work. My car runs fine on 91. Low compression motors require higher manifold pressures and high compression motors require lower manifold pressures to achieve the same results.

Since the Z has a 7AT, how about breaking traction in 4th and 5th?;)

One_Quick_Z 06-16-2009 10:47 AM

^^ +1

ha



dan

Zguy 06-20-2009 10:30 AM

Quote:

Originally Posted by gorillanismo (Post 90867)
I think that isn't ok, it will take some water & dirt, so much turbo lag, more negative than positive...

Why are people so afraid of the unconventional? Until you have had one/ridden in one or beat one then you really dont have any REAL reason to knock on it.

The filter doesnt absorb any more dirt than up front,

There is a water shield BUT if you are driving a boosted 370 in the rain you are just wrong anyways. All that money in a car and you cant afford a beater to drive in the rain? Come on.......

Turbo lag? please... gimme a break... There are so many new turbo's out there that can produce 600whp and spool crazy fast.... Just because there is distance in the pipe doesnt mean there is still not constant pressure in the exhaust pipe. If you call 500rpm over normal turbo lag then fine but to me and many others the ease of installation and no heat issues under the hood would be worth a 500rpm lag over a normal turbo......

Its a good system, generally technology gets better not worse. If it didnt work well then the concept would have failed a long time ago. I drove my friends Z that we fabbed up his rear mount in and it pulled way harder than my Voetech Z and I was using the 2.87 pulley.....

Different strokes for different folks.

Crash 06-20-2009 02:32 PM

If you want less turbo lag, just use either staged turbos or smaller turbos. I'd use staged turbos. Anyone heard anything on aftermarket twin-scroll turbos yet? That'd fix the turbo lag all-together.

Brazilbro 06-20-2009 04:06 PM

how about a supercharger under the hood and a turbo in the back!:yum:

Crash 06-20-2009 04:08 PM

I would say twin charging these cars isn't all that bright. LOL You'd need to fully build the motor to handle that. A good supercharger will feed all the air the stock motor can handle in the first place.

Phimosis 06-20-2009 09:28 PM

Quote:

Originally Posted by gorillanismo (Post 90867)
I think that isn't ok, it will take some water & dirt, so much turbo lag, more negative than positive...

I never really looked into the STS setup because it just seemd like a joke. But, when I started reading independant reviews, it looks like the system really does work and there's no lag.

Check out the youtube video from 2 guys garage:

http://www.youtube.com/watch?v=<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/13cvNXQOCjo&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/13cvNXQOCjo&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>


Or on this one, you can watch the boost build on the pillar mounted boost guage:

http://www.youtube.com/watch?v=<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/p-BMmv7J-9k&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/p-BMmv7J-9k&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>


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