Tuning the Turbo GMC Jimmy!

A few weeks back I visited my good friend Gary Hart to attend the Street Rod Nationals in Springfield, MO. I took random videos of us at the event, and driving/tuning Gary's super cool 1950 GMC truck - with a turbocharged, electronic fuel injected, 1950's era 302 cubic inch six cylinder. As you can see, she runs like a champ! and makes decent power at 10psi!

More Videos...


GMC 302 Starting, Running and Throttle Response
Some Show Car engines actually run and this is one of them...





Firing up the Turbo Jimmy GMC
This is Gary Hart's newest project: a daily drive-capable 1951 GMC pickup with a 311" Jimmy inline 6 engine, HX30 turbocharger, large air-air Intercooler, distributorless ignition using 6 LS coilpacks and Ford 36-1crank trigger, with a Megasquirt-2x (Extra) EFI system from www.DIYautotune.com. Originally built for racing at Bonneville, the engine still has a race-oriented cam profile which may get swapped for something more tame later on. Or maybe not :-) Truck has a TH400 trans, 2.73:1 rear gears. This is a video of an early startup, there are still some bugs to be worked out before we do much tuning. Stay tuned for other vids in a few weeks!





302 gmc cold start
Cold start of a hotrodded 302 gmc 6 cylinder





1960 Injected GMC 302/12 Port Head, Fuel Dragster run 5/5/2012
Lowell Roemer makes a half pass in the dragster he built in 1960.




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