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jrpontiac · 10-13-2018, 01:16 PM

I welded the hotside pipe myself. Hotside pipe dia. Is 3", which is too big but it looks nice. Would use 2" or 2.5" if i did it again. Apparently the smaller the pipe the quicker the turbo spools up. The exhaust manifold had a 3" exit so I continued on with 3". Will be wrapping the pipe in heat tape. The top one pipe is for the wastegate.

10-13-2018, 01:16 PM	#12
jrpontiac Registered User Join Date: Nov 2017 Location: spokane, wa Posts: 122	Re: 77 c10 5.3ls turbo I welded the hotside pipe myself. Hotside pipe dia. Is 3", which is too big but it looks nice. Would use 2" or 2.5" if i did it again. Apparently the smaller the pipe the quicker the turbo spools up. The exhaust manifold had a 3" exit so I continued on with 3". Will be wrapping the pipe in heat tape. The top one pipe is for the wastegate. Attached Images __________________ 1977 Chevy C10 SB, Turbo 5.3ls, TH400 Last edited by jrpontiac; 10-13-2018 at 01:42 PM.