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- San Antonio, Texas
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- '15 CX-5 Miata AWD
Hi, I am working on a low boost (4-5 psi) project to build a remote turbo set up.
A remote turbo set up is one in which the turbocharger is mounted somewhere down the exhaust stream, rather than on the exhaust manifold. Some benefits that are attractive to me:
No turbo manifold is needed - I found that even though there is space behind the engine for a turbo (specially with a shorter manifold), no one has a head flange for the 2.5 sky and you'd be paying to have a one off manifold built (unless you build your own). Even still, it's a cramped space and most turbos will be too large to get behind the engine without partial disassembly; a hassle. Also frees up the engine bay of pipes bent everywhere. A big $$$ saver either way.
Cooler air charge - Because the turbo is further down the exhaust stream, turbo temperatures are lower (up to 500f on some applications) meaning less wear on the turbo/oil, greater effectiveness of the intercooler, all around lower temperatures and better tuning potential.
Some people complain about turbo lag on remotes, some don't (but then again people get turbo lag with a front mount turbo too). I dont give a s*** about a half a second of turbo lag I give a s*** that I'm getting boost lol. THe oil line will need to be run further with the addition of a scavenger pump for return; not a big deal for te cx-5 as the transmission tunnel/space above the underbody panels provides plenty of routing space or space for a self contained oil system for the turbo. The space on the rear axle is ample thanks to it being designed to accommodate a hitch.
I am assembling a parts list. It will serve as a checklist and reference. items added as needed/time permit. Feedback appreciated. Some of these items (especially fittings) might be cheaply available at local hardware stores, but I included them here just in case.
I am assembling a parts list. It will serve as a checklist and reference. items added as needed/time permit. Feedback appreciated. Some of these items (especially fittings) might be cheaply available at local hardware stores, but I included them here just in case.
Mechanical:
Scavenger oil Pump - Turbowerx scavenger pump. Not cheap, but it's an important part that I don't want to skimp on. Needed to return oil from the turbo back to the motor. One way valve before the turbo and after the pump. T off the oil pressure, still deciding best placement for return line. The motor will be either on a switch or wired to run when the car is on. If I can find a practical set up for self contained that's even better.
Base-Model Pump
Turbo - 57/58 trim turbo with anti surge and internal WG
https://www.ebay.com (commissions earned)
Blow of valve - Type - S with flange pipe
As much as I want noise, per tuners recommendation, I will be hooking this up to recirculate. A hybrid may come later.
https://www.ebay.com (commissions earned)
Electrics
Maf Extension Cord - My maf needs to be pre-turbo per tuners preference.I will cut the wire down the middle splice them and run the wiring through the firewall and out the access ports in the rear to the my corksport MAF.
https://www.ebay.com (commissions earned)
3-Bar Map Sensor for reading boost (stock only reads 1.8psi)
Heat Exchangers
Intercooler - Black IC, maybe the version with a hose/pipe kit f I determine those parts to fit my needs. Oem diesel intercooler would be great since the mounting point are already there, but it's proving hard to source. I'm going to keep searching though.
https://www.ebay.com (commissions earned)
Oil Cooler - 7 row 10 an.
https://www.ebay.com (commissions earned)
Fittings
New OEM drain pan to tap
dealer
T3 inlet flange - Exhaust pipe to turbo
https://www.ebay.com (commissions earned) - Got one with a Vband instead
Pipe weldable bov flange - for recirculation before maf. Need one for the other side as well, to attach silicon hose unless I choose to go metal.
Outlet https://www.ebay.com (commissions earned)
Inlet https://www.ebay.com (commissions earned)
Ended up getting a different one
Oil Feed/Drain adapter kit for turbo. built in .0045 restrictor.
https://www.ebay.com (commissions earned)
Oil pressure sensor T - Steel Looks like a good unit.
https://www.ebay.com (commissions earned)
an4(1/4 ) hose for the turbo oil feed
https://www.ebay.com (commissions earned)
an4 end hose adaptors as needed
https://www.ebay.com (commissions earned)
an10 adaptor for pan tap
https://www.ebay.com (commissions earned)
an10 hose for turbo drain
https://www.ebay.com (commissions earned)
An10 end hose adaptors as needed
https://www.ebay.com (commissions earned)
An10 inline filter - pre pump
https://www.ebay.com (commissions earned)
Internal wastegate.
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