Been looking into new ways to make my Zed abit different to others and came across this! Company in the US called Squires Turbo Systems (STS) who provide Single or Twin Turbo Kits that bolt on to your exhaust After your Cat and by your backbox! No intercooler needed as it is with all the Exhuast gases which by then are cooled down!

 

Comes with Air intake and BOV and doesnt need any cooling or new mapping (Apparently) as we already have Mapped for Turbo's! Highly popular with American N/A cars which can run up to 8psi without upgrading parts!!!

STS CLICKY

 

Universal kit that has almost everything is around $3000! Complete BOLT ON kit!

 

PROMO VIDEO CLICKY

 

2 Guys Garage Demo Install

 

Looking at their power results the 350z they tried it on was 100hp more powerful running 8psi than before the kit was fitted!Backed up by customers on Youtube showing similar power results. So if you got 2 more T25's which say push another 80hp alot of us will be well into 400bhp :)

 

Thought this could be a really good idea for somebody looking to up there power! What do you guys think???

 

Munny

Edited April 24, 200916 yr by Munny975

No intercooler needed as it is with all the Exhuast gases which by then are cooled down!

 

And also the pressure will be so small at that point they would hardly spin and would create more of a restriction than any gains

 

doesnt need any cooling or new mapping

 

Because it doesn't work.

 

Looking at their power results the 350z they tried it on was 100hp more powerful running 8psi than before the kit was fitted!Backed up by customers on Youtube showing similar power results. So if you got 2 more T25's which say push another 80hp alot of us will be well into 400bhp :)

 

Buy an electric turbo off ebay for £40 they claim the same results and are just as useless

 

Thought this could be a really good idea for somebody looking to up there power! What do you guys think???

 

I think your gonna be laughed at lol

:rofl:

I've already got a Quad Turbo Zed.................... but my third and forth turbo's are in a box on my lounge floor!! :D

i would imagine the lag is horendous and the turbine would have to be be so small due to the low pressure of the exhaust gas that it would probably go into stall if too much boost was tried ...ie out put overcoming input and knackering the tubby by back feeding

From what i understand as the Gases are pumping through the Turbo at all times it is continually being spooled up and when you floor it the turbos are surprisingly quick to respond (

) and also as no engine heat this is why there are far cooler!So no need for an Intercooler! At the end of it if a boost gauge reads 8psi it is pushing 8psi!!!

 

It may be working harder than normal turbos but the gauge wont lie!It works in the same way as a normal Turbo just mounted somewhere else and when making the piping its all calculated to give max air flow and min resistance so 'back feeding' will be minimal! A guy from the SCION forums in the US with a single turbo got 40hp extra with his setup (at 4.5psi) and many many guys have shown similar success!He then was going to map it for 8-10psi but no more updates!There have been instances where yes the kit didnt work but it needs to be fabricated and done correctly for each make of car!This is why they have pre-made kits for specific cars but as a 300zx isnt on there it would have to be either Custom done or Modified Universal Kit.

 

ECU can cope with a little extra air and accommodate for fuelling but will only go so far!So yes a new map would have to be made but no biggie! Intercoolers it says you dont need but not a problem to install a FMIC going to those turbos (As SMIC will take care of already in Stock Turbos)

 

From what i have seen there have been far more cases of Success to Fail on this system!And i think that proves itself!Perhaps you should do some research before Ripping what seems to be a Genuine product to bits! There are different ways to getting power out of cars than Upping boost and wacking an Air Intake on it you know!

 

*Must add as well this may not be most beneficial for Twin Turbo Zeds, it can be an excellent edition for the N/A Zeds out there!With their high compression ratio engines and ability to run alot of boost could be creeping up to TT power without all the extra weight and additions that the TT models have! Also another thing i have been looking into is Programmable management and tying it in with Water Injection which in a N/A Car with all this added could easily match a TT Zed or Surpass it!

Edited April 24, 200916 yr by Munny975

 

Must add as well this may not be most beneficial for Twin Turbo Zeds, it can be an excellent edition for the N/A Zeds out there!With their high compression ratio engines and ability to run alot of boost could be creeping up to TT power without all the extra weight and additions that the TT models have! Also another thing i have been looking into is Programmable management and tying it in with Water Injection which in a N/A Car with all this added could easily match a TT Zed or Surpass it!

 

 

Thanks for the info mate and links etc:) , something to consider and look in to further as an N/A driver

 

Chris

if you want to go the unusual route then why not ..all you can do at the worse is prove others wrong , i am not certainly ripping it apart however i remain scheptical ..good luck with it if you decide that way

it can be an excellent edition for the N/A Zeds out there! ...

Except it would be a LOT cheaper and simpler to convert a 300zx NA engine into a Twin Turbo using standard 300zx parts than this STS stuff !!

 

Why buy an expensive and inefficient "universal kit" when you can do it properly with readily available genuine OEM TT parts.

Edited April 24, 200916 yr by Yowser

Shhhhh!!! Me and my trusted mechanic have this setup in the pipeline for my NA... still in the talks stage with STS but it WILL be happening very soon... something a little different i thought

 

 

 

I was gona wait till it was done then give some feedback on here for others to consider....

Edited April 24, 200916 yr by 300zxy

lol well good luck to ya buddy! Cant wait to see the results! Sure they will back up what i have said :)

I thinks some of your assumptions about the setup aren't completely accurate.

 

Exhaust gases are continuously being pumped through the turbos on all turbocharged engines. The reason why turbos are only effective at higher revs is that the exhaust gases just don't have enough energy to create useful work from the compressor side of the turbo until they're moving really quickly which only happens at higher revs.

 

The reason why turbos are mounted as close to the engine as possible is cause right when the exhaust gases are leaving the engine is when they're moving the fastest. The further they get from the engine the colder and denser they get so the volume of the gas shrinks. As the volume shrinks the speed they move through the constant area of the exhaust decreases, so as they leave the tailpipes they are moving a fraction of the speed that they left the engine. As turbos are more effective the faster the exhaust gases pass through the turbine side, the further from the engine they are mounted the less effective they can be.

 

On our cars the intercoolers aren't there to cool the charge air cause it's picked up heat from the exhausts and engine. The air coming out of the turbos is hotter as the act of compression generates heat. Doesn't matter how far away from the engine, or how cold the exhaust gases are, if you compress air to 9psi (standard Z boost) it's going to get hot enough to need cooled before being used in the engine.

 

I'm not saying that it doesn't work but i don't think it's a good solution for the Z. It's more suited to big inefficient american engines that have such huge sizes that the amount of exhaust gases produced is enough to spin a turbo that's mounted a distance away from the engine (mainly cause there's no room in the engine bay for anything other that the engine) and that aren't as nearly as tuned or refined as the engines in the Z.

 

Dave

There's a few 350z's with sts kits on youtube with very good results.

I'm not denying that it's possible to get more power out of an engine that way, but mounting it away from the engine and the hot exhaust gases is a funny way of doing it. This is an excerpt from the wiki on turbochargers:

 

"A turbocharger consists of a turbine and a compressor on a shared shaft. The turbine section of a turbocharger is a heat engine in itself. It converts the heat energy from the exhaust to power, which then drives the compressor, compressing ambient air and delivering it to the air intake manifold of the engine at higher pressure, resulting in a greater mass of air entering each cylinder. In some instances, compressed air is routed through an intercooler before introduction to the intake manifold. Because a turbocharger is a heat engine, and is converting otherwise wasted exhaust heat to power, it compresses the inlet air to the engine more efficiently than a supercharger."

 

The whole point of a turbocharger is that you're getting more power "for free". Putting the turbo at the back of the car really reduces how much free energy you're getting.

 

Dave

simple mathematics dictates the turbine will be unable to create sufficient psi?? is this a joke? (i made a rolling road say my na has 600bhp still got the paper somewhere to 'prove' this lol!, basically proves nothing if its from the company that makes the device in question the 'results' will be whatever they want them to be to a certain degree - tbh i thought this was a bit of a joke? i mean 8psi.... are you joking? whats the point? award for the worlds longest oil line goes too sts with opec as a close second! lol!