just touing with the idea of mounting a turbo under the floor of the back seat in a tm... i will explain


cut a square out of the floor underneath the back seat and make a low profile cover to fit over it.

remove the rear of the exhaust and plumb it to the turbo mounted under the floor.
reconnect the rear of the exhaust from the turbo to the back of the car.. and run a 3 inch tube mounted from the turbo to the intake of the engine with silicone joints to absorb vibrations..

the only part thats stumped me is how to connect the oil return line as its gravity fed....


what does everyone think???.. is it a dooable idea or a pipe dream??

i figure at least if the police look under the bonnet it would look stock and i think in the end it will cost alot less than a conventional setup..

theres a company in the US that do a very similar, if not exactly the same thing, i will see if i can find the website

lol and here is me thinking i was the brains of australia for thinking of it :D

that would be great if you could find it....

like i said the only problem i have with the plans is the oil return... oil feed is easy.

thanks

well found some info if anyone is interested




STS Turbo Systems has been around for a couple of years, but until recently we had only heard of them as some company in Utah mounting turbos at the back of cars and trucks. It wasn't until we saw a live installation that we understood how cool the concept of remote mounting a turbo really is. We were under the impression that a turbo system needed a great deal of heat to function, which as we found out was not entirely true. While heat does play a factor in turbo function, it's not the most crucial dynamic. The cone effect, whereby velocity increases inside the turbo housing, is much more vital than the slight heat loss caused by moving the turbo system to the rear of the vehicle.

The engineering behind STS's remote turbo mounting is actually quite simple. By moving the turbo to the back of the vehicle, the need for heat shielding in the engine bay no longer exists. The exhaust gases flow through the manifolds, past the catalytic converter, through the exhaust and into the Garret turbo. The exhaust gas velocity increases about 4,000 percent inside the turbo housing causing the turbine to spin at over 100,000 rpm. The compressed fresh air is pressurized through HPC-coated intake tubes running the length of the chassis, back into the engine bay, directly into the throttle body. While the intake charge must travel the length of the vehicle to reach the motor it is simultaneously being cooled by the ambient air surrounding it, and as a result an intercooler is not required. The patented rear-mount turbo/wastegate assembly is designed to hang from the OE exhaust hangers and move with the rest of the exhaust system.

Oiling for the turbo is probably the most beautiful part of the system. The engine's pressurized oil is routed from the oil filter mount through a braided stainless line back to the turbo. The return is pumped back to the engine and is dumped right through the valve cover oil cap. A 12-volt oil pump is installed in-line on the oil return to keep the line scavenging whenever the engine is running. Should any problem occur with the oiling system, an audible alert will sound and the engine can be shut off before any damage occurs to the turbo. Unlike many other forced induction systems, no drilling of the oil pan is necessary for plumbing. While many traditional systems require a turbo timer after running the motor, STS's patented oiling system has much lower oil temperatures making carbonizing of the turbo bearings almost impossible.

On six-speed applications like the install on our '02 SS, a blow-off valve is installed up front just below the MAF sensor. Between gears, the boost is dumped when the throttle blades shut, keeping the turbo spooled up. On an automatic transmission installation, a blow-off valve is not necessary because 'lifting' of the throttle never takes place during a power run.

The STS LS1 system functions at a base level of five pounds of boost, but can be run at seven or eight pounds of boost provided that you purchase the optional methanol injection system. While many of you are familiar with injecting methanol into the intake path you may not be aware of its function. The slight amount of methanol serves two main purposes. First and foremost it supplements the OE fuel system, making the stock injectors satisfactory for an increase in horsepower. Secondly, the methanol cools the intake charge helping to nullify detonation. For most applications the windshield washer fluid reservoir is converted to a methanol tank, but if the installer is inclined to do so, an additional tank can be installed elsewhere in the rear of the vehicle.

why have the turbo so far back?

Makes the engine bay look stock?

This would create a pretty large amount of lag i would think.

Makes the engine bay look stock?

not with a 3" pipe going into the intake

one of the turbo systems for the LS1's has the twin turbos mounted like where the extractors finish, i know other than the different piping you couldn't really tell it was turbo charged. but under that back seat. gives a massive amount piping and i would think the more pipe the worse it would work

not with a 3" pipe going into the intake

Good point.

yeah i guess it wouldnt be as efficient as a engine mounted turbo but i think the benifits outweigh the negatives...

a little more lag and a little less boost..... <-----bad

cant see turbo <-----good
no regency<-----even better
people scratching their heads as to how you beat their cars<-----bahahahaha ;)


i dont know... just thought it would be beter than trying to get one through regency in sa....
an i figure it would be cheaper

You could do it your self if you could source an oil pump.

You could do it your self if you could source an oil pump.


i have had a quick look around but cant seem to find one.. apart from america for 200 us.... im sure somewhere in aus will sell them.... i will be asking repco tomorrow..... as i just got a t2 turbo im very keen to give it ago...

Would frighten the **** out of someone sitting right above it the first time to.

lol yeah.. but at least they would have warm butts :D

lol yeah.. but at least they would have warm butts :D

warm butts, lol thats an under statment.a turbo cut up into the car will do more than just warm you up a little.

why not ahve it just after you exhaust goes under everthing before it gets right under the car. save money on piping and still wont be able to see it

thought of that but ground clearence is a problem there.... dont want to rip it off if i drive over somthing high..

i figured with some heat sheilding and some insulation under the seat it shuld be ok.....
plus under the car is should run a bit cooler as the airflow to it is greater..

hopefully.... otherwise i guess a smouldering back seat is in the works... ;)

Putting it in the boot is always an option to.

didnt even think of that..... would you need to put vents into there so the boot stays reasonably cool???? i guess you could just line it with insulation and have 2 vents under the car.... problem is my sub will melt :cry:

didnt even think of that..... would you need to put vents into there so the boot stays reasonably cool???? i guess you could just line it with insulation and have 2 vents under the car.... problem is my sub will melt :cry:

Some good insulation and it would be no problem I wouldn't think.

Just make sure you seal it off well and had a lot of insulation and ventelation

thought of that but ground clearence is a problem there.... dont want to rip it off if i drive over somthing high..

i figured with some heat sheilding and some insulation under the seat it shuld be ok.....
plus under the car is should run a bit cooler as the airflow to it is greater..

hopefully.... otherwise i guess a smouldering back seat is in the works... ;)

works on a holden
http://www.airpowersystems.com.au/ls1/under_silver_gto.jpg

but looks kinda stock http://www.airpowersystems.com.au/ls1/front.jpg

nice.. that looks sweet...
i see what you mean.... i might put it up on the hoist tomorrow and measure some things and take photos to get a better idea

Find a see through turbo and put it in your glove box.