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Old 10-02-2006, 12:01 AM
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Elderstarr
Elderstarr is offline
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So... what about turbocharged propane?

Has anybody successfully tried yet?
What problems would there be, other than the usual propane related issues?
How would someone go about correctly timing a turbo propane engine?
Can it be done reliabily?
With an octane rating of 110, would propane make a good fuel to compress?
Since mixers rely on vacuum, how would you regulate the flow of LPG?

This is the story i've heard from my friend... His brother tried a twin turbo propane setup on a 1991 chevy 350. The turbo setup was homemade, simply flipping the manifolds and welding flanges to fit two chrysler 2.2l turbos. The mixer was an impco 450cfm, but shimmed out to 600cfm and modified to run with boost. How?, I don't know. The engine ran comfortably on 8lbs of boost for one week, but then the boost was run up to 18lbs and the connecting rod bearings let go. (motor had over 200,000kms on stock bottom end). I've heard from a few people the truck had tonnes of power, even at 8lbs of boost. The only downside was the burning eyes you would get from standing beside the tailpipe.

So anyways... I am interested in trying a single turbo setup on a rebuilt 351w and tuning it on the dyno at my school. I'm interested to find what kind of numbers I can obtain with LPG and if it can be done reliably.

Also... I'm just curious to how much boost a 351w block can handle

So... thoughts anybody?