41/53dodges Posted January 16, 2015 Report Posted January 16, 2015 or at least somewhere around here... After a long hiatus from being away at school, I finally got to get the 53' going again! There was a thread somewhere around here about how to bring the flathead into the future, well recycled 90's tech will have to do! As some of you may remember, my 53' was turbocharged before with the stock carburetor, well as any tinkerer would know that is never enough. So here is what I have affectionately named "MK-3" What it is, the same turbocharger I had before (really odd japanese performance thing), paired with a GM TBI injector run by a sunbird turbo ECM. It is a heck of a lot simpler than you would think. Throttle response so far is amazing, starting is awesome, and it was pretty cheap to build. 3 Quote
NiftyFifty Posted January 16, 2015 Report Posted January 16, 2015 That's very cool! More pics and info!! Quote
41/53dodges Posted January 16, 2015 Author Report Posted January 16, 2015 (edited) More details please! Whatcha wanna know? Theres a story behind almost every new part! For those of you just tuning in- MK-1: literally threw a $5 turbocharger on, blew right through a stock carb. worked fine until it hit 3+ lbs boost and would never start for crap MK-2: added dual TBI throttle bodies, ran really super crappy and never completed MK-3: current iteration, only one throttle body using a single 454 injector, just needs a little more tuning I found the turbo about two years back on an old subaru motor that ran out of oil, bought it for $5 for a desk ornament and found a big glob of RTV in the compressor, the thing hadnt spun once since it was installed! Turned out to be a JDM high performance (like 425 horse!) turbo that never belonged in the states to begin with? But MK-1 had an issue with excessive ping and absolutely chugged fuel. Decided to go to fuel injection, using the ECM out of a 90' sunbird (same computer as the Syclone or Typhoon) and throttle bodies out of old 90's GM cars. Problem with the dual bodies- excessive fuel and air, and rather uncontrollable. As it turns out the single throttle body has about the same bore as our own factory intake manifolds, so with some creative machining it bolted right on and ran, but needed a bigger injector, hence the 454 injector. Edited January 16, 2015 by 41/53dodges 1 Quote
NiftyFifty Posted January 16, 2015 Report Posted January 16, 2015 Very cool job, I'm a big fan of meshing old and new, hence why im mounting a steering rack to my solid axle truck Quote
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