Remote Turbo Setup
- Thread starter PUTC
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I would think one 6-2-1 header in place of the turbos and dual downpipes wouldnt really be an issue, and VRSF and Cobb have 3.5” DP back setup. Just instead of a muffler a nice BB or JB turbo in its place. Single wastegate no need for a monster IC anymore. Could probably weld fins to the piping going all the way back into engine bay to IM. Run some oil feeds and maybe water lines for cooling.
Another question now would be if any headers for non turbo siblings will fit n54 or would it have to be fabed up
Another question now would be if any headers for non turbo siblings will fit n54 or would it have to be fabed up
Remote turbo setups have a lot of lag. You want the piping to the turbo and from the turbo to be as short, direct, and straight as possible.
Well as far as that goes, you probably could run a small turbo up front and the bigger turbo in the rear. I think the question would be more on the lines if you could get everything to fit. Obliviously it wouldn't be a cheap setup but would be interesting to see.
I’m curious if by doing a turbo setup outside of the engine bay would if it will help with heat accumulation and the longevity of some of the external parts of the car as well as dealing with the tight and cramped space available. From the stuff I’ve read recently it would seem to be a less expensive option and has many benefits in the areas above. I’m not saying to cheap out and buy eBay crap to put it together. What if a quality build could be made for far less. Fact is we mainly are paying for precisely fabricated hot parts. Roughly 1500-2000 from what I’ve seen online for the good kits and 800-1200 for the crap 50/50 shots. Plus all the small odds and ends that have to put together to finish it. To get quality most people are spending 4-8k range? If you could do it for less and get the advantage of easy installation, less heat, and budget build without the sacrifice of reliability it would be a win.
Not gonna be less expensive at same quality. You're adding an exhaust, way more charge piping, and shifting the complexity from the engine bay to pipe routing under the car...all while adding lag and moving the heat from an engine bay to right behind your fuel tank.
If you want something inexpensive, buy a known good used kit.
I had a look at rear mount turbos before I fitted my GCs. Lag actually doesn't seem to be an issue.
The rear mount option seems quite popular with some people.
The part I liked about it was having all that air flow for cooling back there and hanging some more weight over the back wheels. Plus very easy to change a dud turbo without it being buried in the engine bay.
Yes you have the additional piping and you need to get oil flow back there. You also have much more time for charge cooling though.
The rear mount option seems quite popular with some people.
The part I liked about it was having all that air flow for cooling back there and hanging some more weight over the back wheels. Plus very easy to change a dud turbo without it being buried in the engine bay.
Yes you have the additional piping and you need to get oil flow back there. You also have much more time for charge cooling though.
This has always been an option for some cars, but only if there was no other way. The annoyance of pulling the subframe to service a bottom mount was never enough to sacrifice the day to day inferiority this setup brings.
I love creative ideas however. I say you do it and I'll watch
I love creative ideas however. I say you do it and I'll watch
Lol. I’m not a fabricator nor do I have the parts. I have lots of thoughts about stuff but no means to actually do anything right now. I like to plot and plan for a while, research and then research some more. Maybe over the next year I’ll try to grab some parts for the project and see what can be done. I have a few buddies I might be able to get stuff from and another that’s a competent welder. Would have to have a 2nd car to tool around in though before I can even try. Maybe some day I’ll contribute something real to this platform besides, “oh shit, something else is broke” threads
Running new exhaust kills the value here I think. Maybe run a header to the stock cat back, then just fab the dual pipes to a turbo, or run twins .
Lots of people with these also ensure they run a light of some sort in case of scavenge pump failure, as it's a critical component. Also, the turbo sizing for a rear mount is kind of different - if I recall, it's usually a smaller turbine A/R to make up for the long piping, but they still hit peak torque fairly late. With all of the options available, this seems like a great thing to be different, but not a value proposition.
.Lots of people with these also ensure they run a light of some sort in case of scavenge pump failure, as it's a critical component. Also, the turbo sizing for a rear mount is kind of different - if I recall, it's usually a smaller turbine A/R to make up for the long piping, but they still hit peak torque fairly late. With all of the options available, this seems like a great thing to be different, but not a value proposition.
That’s not a bad idea. Find some blown stockers and chop off the turbo. Run some pipe to the mid pipes and connect a t3/t4 flange to it. Waste gate, scavenge pump, cheap IC piping kit on eBay. Talking maybe 1500 for it all with an inexpensive turbo. Maybe 2500-3000 doing it correctly. Not saying this would be best route, just always thought it was a cool idea.
Outside of the lag the setup has another flaw. The turbo inlets will soak up water if you ever run into flooding problems. There are times where I've come across them unexpectedly and I couldn't imagine an air filter that low sucking in water from a 1ft flood. Even worse if you lower you car.
