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Remote mounted turbo?

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9.5K views 156 replies 26 participants last post by  IAmTheSTIG  
#1 ·
I was in the exhaust shop today getting an estimate on a 3" header back system, and the guy told me that before I buy a supercharger I should look into a remote mounted turbo. He said the turbo replaces the muffler so it would be at the back fo the car. He also said that the kit has very little lag.

Discuss.
 
#7 ·
I actually think this is a neat idea, yet on our cars we dont have alot of space anywhere near the rear axle to hide a turbo and alot of pipeing without it buldging out of the bottom and being a potential target for shit hitting it as you drive over stuff. + you would probably have to run the hard pipes through the inside of the car, due to there only being 1 channel to route pipes under your chasis. A solution to all of this would be to get a Fuel cell in your trunk and remove the old tank, heat shield the underbody of the car where it use to be, and mount it there. I say go for it if you got the cash and someone with alot time to weld shit on their hands.
 
#12 ·
SICness said:
How does it get cooler oil to the turbo? I couldn't find a reason just the statement.
How is the turbo lubricated?
Our system uses the engine's pressurized oiling system to supply the turbocharger. This pressurized oil travels approximately 12 feet through tubing which dissipates heat out of the oil just like an oil cooler to provide cool oil to the turbocharger. The oil is then scavenged from the turbocharger via an electric oil pump which returns the oil to the engines valve cover through another long length of tubing which again cools down the turbo-heated oil before entering the engine.
 
#13 ·
seems like alot more work then just putting the turbo on the engine bay. theres usually a reason why things are done the way they are 99% of the time. theres less fab work and less things that can go wrong with having the turbo protected in the engine bay. thats kinda like having the Nitrous bottle hang under your car imo
 
#14 ·
There are several things that concern me about this kit. Some of the issues have already been mentioned: boost loss, space, cost for longer piping, ect. The thing that concerns me the most is how far away the turbo is from the head. Just think how much exhaust heat and flow would be lost by the time the exhaust reaches the turbo. I already think a turbo on v6 is pretty far from the head.
 
#15 ·
Something tells me that you would need something substantially smaller than a T3/T04e to get any decent spool up out of this. Plus my concern again, is lubricating the turbo as well, although I guess if you had a pump system in your trunk with a oil resevior and a oil cooler this could work, but where would the piping going back to the throttle body run without scraping the ground?

Not saying it wouldn't work, just seems like a lot of work. What about high boost applications where you need a vacuum line coming from behind the throttle body to properly actuate the wastegate?
 
#18 ·
camaro = big exhaust output :D They said they use it on v6 tacoma's too but i imagine is a larger v6 but i :dunno: for sure. Also they have a lot more clearance
 
#20 ·
There would be lots of lag to tell you the truth because the Expantion of the hot exhaust gas's is lost do to the heat transfer of the exhaust. See a turbo is run off exhaust gas's yes, but its the HOT expantion of the exhaust gas that makes it spin/spool faster and faster. Thats why people with turbos right after the head as in I4s and I6s spool quick because theres no time for the gas to cool down its just rushing expanding exhaust gas. So you want hot exhaust gas to get to your turbo thats why its better to have a good metal that will not let off to much heat but yet wont contain alot of heat to produce stress cracks do to, to much heat and the motion of the engine while at WOT to declerating very quickly.
 
#21 ·
chinchooter11 said:
There would be lots of lag to tell you the truth because the Expantion of the hot exhaust gas's is lost do to the heat transfer of the exhaust. See a turbo is run off exhaust gas's yes, but its the HOT expantion of the exhaust gas that makes it spin/spool faster and faster. Thats why people with turbos right after the head as in I4s and I6s spool quick because theres no time for the gas to cool down its just rushing expanding exhaust gas. So you want hot exhaust gas to get to your turbo thats why its better to have a good metal that will not let off to much heat but yet wont contain alot of heat to produce stress cracks do to, to much heat and the motion of the engine while at WOT to declerating very quickly.
Ummm....what? Do you even know what the Fu%$ you're talking about? This is gibberish. Hot exhaust gases better for running a turbo?? :bash:
That is a conceptual error...as is most of your post.


Hey...it looks like many of you are lost on this topic. If you are curious about this turbo system, I would suggest picking up the Feb 05 issue of Chevy High Performance (or check it out at the supermarket). Page 22. Explains where they get the oil, operation at 5 psi, use a 38mm wastegate, and the pressure drop from running piping from the rear of the car to the front was .25 to .5 psi.

Awesome idea....space would be my question....
 
#22 ·
actually he's right. turbos work off thermal energy. the hotter the gas, the faster it will spool. this is due to hotter gasses having higher velocity/kintec energy. take anti-lag systems for example, they will retard timing by 30 degrees.. so basically when the exhaust valves open.. fuel is dumped.. and spark occurs cause the ignition into the manifold/turbo. with this kind of setup, you can have 0 lag. infact you can sit at idle.. with anti lag on.. and run boost! ;) this will kill your turbo pretty fast, but the point is. more heat = faster spool.

before you post dumb shit like "do you even know what the fuck you're talking about" i think you should learn a bit or two.
 
#23 · (Edited)
SICness said:
It just doesn't make sense for a front engine car. You may get less lag but think of all the boost you'd loose through the piping. They'd have to be about 6 to 8 feet long!

Hey....http://www.ststurbo.com/testimonials does that look like "lost boost"???? Put a little research in before opening your gap, you might come across as somewhat intelligent.

:retard:
 
#24 ·
xull1x said:
actually he's right. turbos work off thermal energy. the hotter the gas, the faster it will spool. this is due to hotter gasses having higher velocity/kintec energy. take anti-lag systems for example, they will retard timing by 30 degrees.. so basically when the exhaust valves open.. fuel is dumped.. and spark occurs cause the ignition into the manifold/turbo. with this kind of setup, you can have 0 lag. infact you can sit at idle.. with anti lag on.. and run boost! ;) this will kill your turbo pretty fast, but the point is. more heat = faster spool.

before you post dumb shit like "do you even know what the fuck you're talking about" i think you should learn a bit or two.
:chair:
Huh.......let me guess. You spent all your time in high school physics thinking about boinking the fat chick in the aisle across from you??