How To Install A Rear Mount Turbo

DIY: Rear Mount Turbocharger

by Richard Rowe

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Practise you have a car, an engine and a spare turbocharger lying around? If then, then you may have well-nigh everything you need to fabricate a rear-mountain turbo setup, give or accept $500-$600. Though single rear-mount turbo systems often accept problems delivering boost pressure at low RPM (a status known equally "turbo lag"), loftier RPM ability is as adept every bit with whatever engine-mounted turbo awarding.

Engine and Turbo

Because of their somewhat laggy nature, a rear-mounted turbo organisation would ideally be applied to an engine no smaller than 4.0L. Torque-deficient four-cylinder engines volition bear witness difficult and frustrating to drive if turbo-lag is too great, and may require additional modifications to the gearing and bulldoze-train to compensate. Some of the best deals on used turbos come up from agricultural machinery, diesel generators and over-the-road tractor trailers. Though these turbos are all but guaranteed to impale power below three,000 RPM, they work very well with big V-8s. You could purchase a rebuilt turbo for between $250-$400 from online turbo retailers, but information technology will exist hard to find one to suit large-displacement applications for less than $500.

Required Parts

In add-on to the turbo, you're going to need a high-flowing single exhaust organization. Use mandrel bent pipes, and don't go any larger than 3". Too-big pipes will reduce catamenia velocity and increase turbo-lag. The single most expensive investment in this installation are the oil pumps. you'll need two matching pumps; one to pull oil from the turbo, and another to ship information technology back from the reservoir. Westech makes such pumps, which will run you $220 a piece, but cheaper pumps are available from Summit. Buy 30 feet of 2.v"-3": aluminum tube, and 6-10 rubber couplings and hose clamps to fit it. Wait another $100 in expenses.

Mounting

Later on installing your new single exhaust kit, fabricate a department of mandrel-bent tubing with a mounting flange for your turbo on one end. This tubing should be installed and so that the turbo rests in a vertical position where the muffler used to be. Fabricate a bracket to back up the turbo from your car'southward frame.

Oiling

Mount your offset scavenge pump as close to the turbo as possible, and slightly beneath it if y'all tin can. Connect the turbo bleed line to the inlet side of this pump, and the outlet line to your i-gallon trunk-mounted oil reservoir tank. Mount your second pump next to the reservoir, and run a line from its output to the turbo oil inlet.

Air Handling

Run your aluminum tube from the engine's throttle torso or mass-air sensor to the turbo compressor outlet with as many sections of rubber tubing as required. Keep the tubing as far away from exhaust pipage and suspension components as you lot tin. Install an oil-impregnated air filter onto your turbo's compressor inlet. Install a spring-loaded blow-off valve set to your desired pressure level if you lot're using a diesel turbo.

References

Writer Bio

Richard Rowe has been writing professionally since 2007, specializing in automotive topics. He has worked as a tractor-trailer driver and mechanic, a rigger at a fire engine factory and as a race-car driver and architect. Rowe studied engineering, philosophy and American literature at Cardinal Florida Community Higher.

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