Thread: Rear Mounted Turbo Set up

yes an intercooler would help, but i think one other reason that they don't need an intercooler is that by the time the exhaust gas reaches the turbo it has has some time to cool down slightly as compared to when it comes right out of the motor

then with the long pipe going to the front it shouldn't be hot enough to cause a problem

and the turbos get plenty of cool air haha

so what happens when cold water sprays all over that cooking hot turbo? no way thats good for it.

intercoolers have nothing to do with hot exhaust gas. The heat in the intake charge is created by compressing the air which creates friction between air molecules. I doubt longer pipes help this much.

People with more expensive and higher horse power cars generally don't drive them in the rain. If I can help it, I myself never drive my Z in the rain. HP + Rain = asking for trouble.

I suppose that is true, I have no A/C or Wipers in my turbo car, so I avoid rain at all cost. I still have been caught a few times on the way to and from the track. Rain and big puddles are unpredictable and and frequent in South Florida.

Yeah, they do these setups in vehicles w/ limited space in the bay (i.e. LSX powered vehicles)... some don't even need to run an intercooler because by the time the compressed air reaches the manifold its already cooled by the lengths of pipe.

The only thing you have to watch out for is big potholes, and smart kids with a car jack and a sawzall

It's pretty sweet... but that pipe/work would be expensive if you didn't know how to mount/weld it yourself.

the cars that use these setups also have alot of power down low so I don't think lag would be a concern. I saw the horsepower episode that they installed one of these in the vette one of the main things is there is a pump used for the oil return, because of the low placement of the turbo

I've seen in it on a 3.4 liter tacoma and some pickups too.
the tacoma was way cool and according to the owner it was cheaper, easier and made more power than the trd supercharger he had before it.

yes intercoolers do have somthing to do with hot exhaust gasses, the turbo compressing the air isn't the only thing creating heat

i havn't seen anything on the heat turbos create compressing the air, but i just read an article where they did a study on a roots type supercharge had a bunch of charts and calculations that i'm not going into, and the most heat it generated compressing the air at 10psi was 200 degrees with an outside air temp of 75 degrees


last time i checked your exhaust manifold gets wayyy hotter than that so i would assume hot exhaust gas contributes to the heat of the air going into the intake

i could see how the rear mount turbo could do without a intercooler becuase the exhaust gases are farther down the exhaust which i think as the exhause is carried down it cools off some, maybe not 100% but think about if, it you didnthave a exhaust on the head, and put your hand infront of the port lol it would be extremely hot, now put a header and exhaust on it, and put your hand at the rear tail pipe, the heat is less hot there...

which i think is kinda the reason a rear mount turbo system can do away with a intercooler....but its not to say that the air the turbos are being spun with or is creating, isnt needing to be cooled....

i would like to see some exhaust numbers at the beginning of a exhaust and at the end of the exhaust. this would tell you the temp that the turbo is sucking in.

something along those lines