New Corvair Owner Reno/Fernley NV
Posted: Tue Sep 05, 2023 11:49 am
New owner of a 63 Spyder Black with Aqua interior. What are some of the know issues with the turbo motors?
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You'll get a LOT of opinions. Keep in mind many turbo Corvair owners modify their engines!! First thing is to determine if the engine/car are modified. The basic complaints for a stock turbo is "turbo lag" or you have to wait after mashing the gas pedal for power to increase via boost. The cooling system is marginal for maximum power. Per Corvair engineer Mr. Benszinger the turbo boost is only meant to be used for passing or temporary maximum acceleration. If you keep the boost up for more than about a minute you can overheat the engine. Keep in mind that after far less time than a minute the car will reach maximum speed beyond legal speed limits. Many Corvair turbo owners drove these cars without any overheating issues, but you won't be going racing without modifications.
The 1962-1966 Corvair was one of the earliest vehicles from Detroit to incorporate a turbocharged engine. As such, it has a relatively unsophisticated system to manage and control engine operation and the possibility of detonation occurring in the combustion chambers. Boost limitations limited by the turbocharger design and carburetor size, plus the use of a pressure timing retard device on the distributor (with somewhat marginal reliability and effectiveness) can permit the engine to be overtaxed — possibly permitting engine damage. Premium high-octane fuel is also very important to help control detonation. Modern synthetic oils do a better job of lubricating the turbocharger and dealing with the high heat levels sometimes encountered within the turbo. The engine is really designed for brief periods of turbo boost operation, and not for extended periods of boosted operation. (Operation and maintenance by a knowledgeable owner is helpful). Premium fuel mileage is somewhat poor. But driving a turbocharged Corvair can be a lot of fun!CARTER Y-SERIES
The Carter Y series carburetors were 1-barrel downdraft (YF, YFA, YS) or sidedraft (YH) carburetors used at various times on most makes of American cars and trucks, usually on 4 or 6 cylinder applications.
The chokes on these carbs were usually hot air operated automatic chokes, though some earlier models (and all the military models) were produced with manual chokes. Late model carbs (late 70's - 80's) sometimes had electric choke coils.
The Carter YH sidedraft carb (kit CK456) was used on a triple carb installation on early Corvette 6 cylinder engines and turbocharged Corvair applications as well as Nash, Dearborn Marine and others.
Carter YS carbs (kit CK518) were used on military Willys Jeep applications. These carbs were waterproof for fording.
https://www.holley.com/products/fuel_sy ... rts/12-804bbodie52 wrote:Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holley regulators are pre-set at the factory at 2.8 PSI so there is no guesswork when first installing the regulator. The Holley 12-804 fuel pressure regulator features 3/8" NPT in/out ports.
Features:
- Adjustable fuel regulation from 1 to 4 psi
- .220" (7/32") restriction
- 3/8" NPT ports ( 1 in, 2 out)
- Chrome finish
- Mounting bracket included
- Pre-set at 2.8 PSI
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