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I was wondering which companies make this kind of setup for a C3 small block. I have heard of a couple people doing it, but can't find much information from doing searches.
Been looking into Twin turbos for a C3 as well. It seems to be the best way to get the HP and TQ I want without going from "miles per gallon" to "gallons per mile". I am even considering getting a twin turbo setup from a C4 or a C5 (like lingenfelters setup) and then customising it to fit in a C3. If you find a C3 desingned setup, make sure you share the knowledge.
Hey (Twinnie) At what temp does you car run? The only bad thing I have read about a Twin Turbo setup in that the turbos make the engine run hot. Since I live in a desert, this might become an issue.
My engine doesn't run yet and my car is far from completed so I couldn't tell you.
Every hi-po engine runs hotter so it's not only with turbos. I have a huge fluidyne nascar radiator so I'm covered in that area. The stock rad will never be sufficient for a hi-po engine, not even if you live in a mild climate like I do
There are a few old single turbo kits out there, ranging from the Duntov turbo's to old Banks turbo kits, etc that you might be lucky or unlucky enough to stumble upon. Depends on how you look at it. As for twin turbo's, more than likely you'll find that "custom" is your only choice. I really didn't consider anything else other than custom fabricating my own system due to my power, appearance, and quality/reliability goals, but it's possible that some of the log style turbo manifolds would bolt on without too much trouble. I'd be willing to bet that some modification and fabrication will still be required for the rest of the plumbing but it would be a starting point, I suppose.
As for turbo's making your engine run hot, that is untrue. The turbo turbine's themselves are a heat source, as they basically become heat sinks since they are in the exhaust stream, but by properly locating and shielding them, the heat isn't an issue. You might find that under prolonged periods of boost, 20-30 seconds plus, your water temps might rise, but that is the case with any high-performance engine put under load for an extended duration. It is similar to drag racing, the water temps will be higher at the end of the run than at the starting line, but once you return back to normal operating conditions the coolant temp stablizes to it's noraml range. With an adequate cooling system, we're only talking maybe a 10F difference, say from 190F to 200F or so. I've only gotten a few miles on my car since I completed the twin turbo engine, but I have had no indications of cooling or heat related problems so far, and I've driven the car in almost 100F temperatures.