sts turbo (rear mounted turbo under car) what have you heard?

[shwarno]

is there anyone that has done this or know of anyone that has done this. i figure that a turbo mounted towards the rear of the car would produce some rather large LAG issues but there are alot of people in the states doin it.. any results? suitable for low boost cars? (alright guys that hate me LOTS have ur say about my CRAP ideas)

[djeyecon]

What youre saying is actually the opposite shwarno, i've read up abit on the sts turbos and found that they mostly run low boost and have very little lag. Check out this vid.
YouTube - 350z - STS Rear Mount Turbo - Awesome sound!

[shwarno]

do you agree with were the air cleaner is tho!?

[djeyecon]

Well it's out of the engine bay and i'd imagine there would be a very high air flow under the car. If anything its sucking cooler air and alot more of it.

[eurekamad94]

my concern's would more be about speed bump's ripping the turbo off

[slo_firo]

ive read about guys doing this with minis to keep the engine bay sensible.....

it did work pretty well as you dont need much boost on an 1100..... just keep the motor higher compression to help with the massive lag lol (a commy has about twice the piping lenth also)

[LowVp]

my concern's would more be about speed bump's ripping the turbo off

diff and rear bar would be ripped off first in that case

[AirStrike]

You would have to get lag, its simple physics. Keep in mind the 350z you posted is quite a powerful engine stock, so lag won't be as apparent.

[VSSECO]

Sticking with a small diameter exhaust up to the turbo would reduce lag.. having said that, it would choke the engine at the top end and reduce overall power. You need to find a balance.
But I'd be moving the air filter out of the path of the tyre, or putting a guard across it. Even if the car was driven only on good roads the filter would get caked up with $hit and possibly get stones punched straight through it. Imagine smoking the tyres up and the molten rubber that would stick to it!

[Cursed CX8]

could you imagine smoken the tyres up and having your engine breath all that smoke???

[shwarno]

even in the rain the pod would be useless.. i agree that it would have lots of lag. i just had my ute on the hoist and came to the conclusion that we could have it up the back and have the pod filter suck air in the gaurds of the tray.... but i'm still not 100% certain that a turbo back there is'nt gonna be a waste of money..even using a small turbo there would be a total of about .. 8m's of piping!! not suitable for a turbo at all..

[VSSECO]

The only benefit of using this turbo setup on a commodore would be if you wanted to hide the fact that you had a turbo. You could hide all the piping and run it into the standard air box from underneath. Then anyone looking in the engine bay would be none the wiser - until you start the thing anyway.
At least the extra piping length under the car may well reduce the need for an intercooler.

If your building a stealthy car then go for it, but if you building an outright performance car then put it in the engine bay

[vsuteLs2]

that would be an awesome idea for p platers to be able to HIDE the turbo from the PIGS. where could you get this done?? this is exactly what ive wanted, i just wouldnt be able to smoke the tires.

any idea how much this turbo set up would cost?
and where i can get it done?

[vrcommozone]

i agree! i really want it done too

[VT-565]

IMO these set ups don't belong on street cars.

By the way, that pic above has one of the most restrictive manifold pipes I have ever seen.

[lukeyVY]

Only now i have just realised the only half decent thing about Western Australia (lived here since born), Legal for P platers to "Soup up" cars!

Yeah stuff putting one of them underneath my baby, theres some killer speed bumps that wouldnt take a liking to one of these turbo setups.

[greenfoam]

There's a V8 Falcon getting around that runs 9s straight off the street with a rear mount turbo

[one_and_only2004]

but where would you put the cat. converter and mufflers?

[VT-565]

but where would you put the cat. converter and mufflers?

The cat would still have to in it's normal place as it would not get hot enough to activate if you put it after a rear mount turbo. a hot dog before the turbo should be enough to take the sting out of the sound.

[one_and_only2004]

The cat would still have to in it's normal place as it would not get hot enough to activate if you put it after a rear mount turbo. a hot dog before the turbo should be enough to take the sting out of the sound.

Very true i guess - i've heard turbo's do make the exhaust a bit quieter, something about the turbine chopping the exhaust sound waves.

I found a video on the tube about these two guys putting the kit on a 5.7 in the US here, it's fairly general, but it cleared it up for me.

They talk about how the turbo isn't very laggy in there too

[greenfoam]

YouTube - rods incar footage day 1 run 1 new car 55 sec new car

TTVN's rear mount VP 304 on 6 psi

[Pub247]

There's a V8 Falcon getting around that runs 9s straight off the street with a rear mount turbo

i dont think thats rear mount i know theres a mid mount with turbos near gearbox unless theyre 2 different cars

[greenfoam]

Nah I've seen one with leaving the line with the turbo visible from behind, just under the back of the car, could be the same car with a setup change. I saw the pictures of it a few years ago now

[one_and_only2004]

one of these would fit quite well in the spare wheel well under a ute. Would you want something in the size of a GT25 turbo for say, 8-10 psi?

[VT-565]

They may work, but in my mind, there are a few problems, we'll say for example, that camaro in the 'two guys garage'.

1. That air filter. Really does defeat the purpose of a cold air intake or keeping it out of the way. It would cop so much crap there and what's a big killer of turbos? dirty airfilters.

2. I don't care what anyone says, if you're on full boost, then snap the throttle shut, the boost between the throttle blade/s and the compressor wheel gets vented (unless you're a dosing d**khead). Now, when the throttle is back on, the turbo has to compress the air in that tube to make boost. I'd rather compress air in a 6 foot long tube (through cooler arrangement) than 15 feet plus. There would be a noticeable difference in time. The 'two guys' say it's not very laggy, but they never tested that, they just ramped it up from a steady rpm! it's going to be different in an on road situation.

BUT, that's just me. I stand by my statement these aren't for the road, save em for the track.

I'm always up for a debate though