The post on the engine that cost 22K started this post, but this "project" I've been thinking of for a long time.
I'll say it, most who read this will ask, "Why?" or say "Just change engines, it's easier, cheaper....."
I figure I'll ask the "hive" mind....see if anything comes up.
Project Name: 4.9L Inline 6 Intercooled(?) Turbo
Engine: 4.9L (300CID) Inline 6 Ford
Year: 83
Trans: C6 Auto
I've found one or two other forums dedicated to turbos and/or Fords. And there are some out ther who have done this-though getting details is someone difficult. I'm sure that th vast knowledge of AR.com, someone has done something similar & can comment.
I'm still in the RnD phase. Granted, I have a motor ready to be assembled (found a rebuilt cheap-major rebuilder too). Figure I'd attatch everything to it and swap the old one out when the new is ready. Planning to order a book I found on how to turbo things...... The engine is built to stock specs, just a rebuilt. Not sure on the compression....
Any how, I've thought about using later fuel injected exahust maniforlds since they are a two peice design and are not connected to the intake like the old carburated ones. I figure that w/ the two peice (front and back) sytle, one can make an Y adapter to connect it to the turbo. The intake, I was thinking of using the generic 4 barrel types that are out there (JC Whitney sells them).
I've heard of two type of systems: Blow through and draw type. The draw type, I've heard need soemthing to warm the air a bit or carb icing happens. Plus, w/ a draw through system, someone said that fuel gos through the turbo unlike blow thorugh- and little drops hitting the turbine scares some people. So I'm leaning through blow through. But, it requires a special carb (or one built for blow through). A parts man buddy suggested some kind of 4 barrel carb that didn't dump fuel...so at mild throttle, it wouldn't eat gas. Someone suggested a throttle body convertion..... (this is going to be a dailer driver...don't want icing to happen in winter...)
So the plumbing would go something like this:
intake filter-turbo-(intercooler, maybe)-carb-manifold.
I've seen that the vacuum for the brakes and other stuff is connected to the air intake before the turbo-where there is actually a vacuum! If need be, I could put a small reservor tank like on medium duty trucks and a check valve (I have a C750 for cab-over that I was looking at for ideas).
Timing- ah yes. It seems, that the timing usually has to be retarted a bit. I'm fortunate(?) that I'm using a non computerized engine. Looking online someone suggested an MSD ignition that has a boost sensor connection (so it can retard timing).
Turbo- I've read people have used doner turbos from other vehicals. Have seen links to sites that show how to select a turbo (if you buy program). Other places say they can help you select the turbo for application-some have a built in wast gate. I was thinking of a mild boost of say 10psi max-it's a stock engine.
Fuel- Not sure if a mechanical will work or if an electric w/ vaiable pressure is required. I suppose it depnds on the fuel system (be in carb or TBI). Suggestions?
Costs (guestimation):
intake: 250
turbo:500
ignition system: 500
intercooler/piping:350
carb/EFI(?):600/1200
Have I gone off the deep end...... possibly......