North American Turbocoupe Organization

Custom Oil Return Line?
SteveX82 Offline
Posting Freak
With the absurd prices of t3 oil return lines (even used ones), I've been tempted to custom fabricate one myself. I've considered just welding some sort of fitting onto the bottom of the center section and using a steal-braided line to connect back to the block (i've heard that using a rubber tube is not a good idea). Do you guys think this would be a safe alternative?

Also, I've given up on the idea of retaining my intercooler in it's stock location with the new t3. Not only would I have to machine off the flange and figure out a way to securely mount the intercooler hose, but i'd have to find a way to connect the oil breather cap line and the wastegate flange as well. So instead I've decided to weld some sort of elbow onto the compressor outlet and simply use a front-mount IC instead. But then I'd be eliminating the two vaccuum ports on the intercooler....Would I even have to worry about that? And as always, thanks for any help.

maroon 1987 TC 5spd, 128k miles

k&n cone in fenderwell, gillis valve set at 17lbs, kirban adjustable fpr set at 40psi, walbro 255 hi-pressure pump, bosch hi-pressure bypass valve, ported e6

Best 1/4 mile: 14.778 (with 2.198 60' time)
Best trap speed: 94.01mph
Estoril blue 1987 TC 5spd, 148k mi, a237, Bailey BOV, spec stg3 clutch, spearco FMIC, 50 trim t3/t4, 3" exhaust, Bamafuel, LM1, 55pph
Best 1/4 mile: 12.31 @ 110mph on 25psi

Pete D Offline
On the oil line, braded should work. just make sure that it's ID is as large as the ID of the stock return line. Oil coming out of th eturbo at high speed is more like foam than oil and the additional line diameter is needed to get it out of the turbo and back to the pan.

On the vac lines from the i/c. Disconnect them, plug them and see what happens. Be sure to test your speed control.

NATO Member
88 TC X 2, 86 SVO, Main TC with K&N, 3"DP to 2.5"duals through Dynamax, Ric valve at 17+ and disconnected KS. Elite Bodega 16" chrome wheels. Autometer pod w/ A/F and Vac/boost gauges.140 mph Motorsports Speedo New engine: Total Seal rings and TRW pistons, ported and polished head w/ cc'd chambers,1.59"exhausts, SS valves, gutted upper, knife edged lower, A-230 cam, Race Engineering Adj Cam Sprocket, Crowlers, ARP head studs, and rod bolts. Walbro 255 HP pump and Kirban adj FPR, T-3. Centerforce II, KB subs and jack rails.
Pete Dunham


Dan E Offline
Posting Freak
Turbonetics makes a flange specifically for a T3 oil return line (the side that attaches to the turbo).

Dan Eaves
88TC 5spd, Crower 5.5" Sportsman Rods, Short Wiseco Pistons bored .030" Over, Ported Head with Polished Combustion Chambers, Gutted & Polished Upper, Ported & Polished Lower, Polished T/B, Ported E6, SVO T3 .63AR Turbo, Bosch Bypass Valve, 3" DP w/No Cat, 2 1/2" DynoMax single cat back w/DynoMax Super Turbo Muffler, RR Cam, K&N in Fenderwell, Gillis Boost Valve, Centerforce I Clutch, Removed A/C, Polished Wheels, Polished Valve Cover, Polished Crank and W/P Pulleys, Walbro 255LPH HP Pump, Kirban Adj FPR, and the DAMN Heater Core is new too !

NATO MEMBER (Vice Chairman...if it's a vice...I deal with it)
Dan Eaves
88TC 5spd Vermillion Red, Polished...everything...

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