Comments on: ROUSH scopes Propane Ford Mustang drag cars http://www.stangnet.com/2009/11/05/roush-scopes-propane-ford-mustang-drag-cars/ Ford Mustang Blog and Forums, including 2011 and 2010 Mustang reviews, photos and forums. Thu, 09 Feb 2012 13:12:38 +0000 hourly 1 http://wordpress.org/?v=3.3 By: Squatchhttp://www.stangnet.com/2009/11/05/roush-scopes-propane-ford-mustang-drag-cars/#comment-2713 Squatch Wed, 02 Dec 2009 09:06:37 +0000 http://www.stangnet.com/?p=1571#comment-2713 But I'm only 19, so what do I know about aspiration choices :P But I’m only 19, so what do I know about aspiration choices :P

]]> By: Squatchhttp://www.stangnet.com/2009/11/05/roush-scopes-propane-ford-mustang-drag-cars/#comment-2712 Squatch Wed, 02 Dec 2009 09:05:17 +0000 http://www.stangnet.com/?p=1571#comment-2712 Propane has a lower energy rating per unit, BUT is a higher octane equivalent, so compression ratio makes that back. Since it is a gaseous fuel, it almost always mixes and burns completely, much less emissions and more efficient operation. Plus, if I'm not mistaken, the roush system going into these cars injects the propane as a liquid, so it cools the chamber when it vaporises. In my opinion, roush should have gone with a compression ratio of around 10:1 and thrown in a couple little turbos... Propane has a lower energy rating per unit, BUT is a higher octane equivalent, so compression ratio makes that back. Since it is a gaseous fuel, it almost always mixes and burns completely, much less emissions and more efficient operation. Plus, if I’m not mistaken, the roush system going into these cars injects the propane as a liquid, so it cools the chamber when it vaporises.
In my opinion, roush should have gone with a compression ratio of around 10:1 and thrown in a couple little turbos…

]]> By: ilyahttp://www.stangnet.com/2009/11/05/roush-scopes-propane-ford-mustang-drag-cars/#comment-2246 ilya Sun, 08 Nov 2009 22:40:48 +0000 http://www.stangnet.com/?p=1571#comment-2246 Hey Paul, it's not only 50hp... because 550hp was on supercharged 5.4L, however, they went with natural aspiration, and boosted that compression from 8something:1 (supercharged version) to 12.5:1.I'm still curious about propane ratings, given that it "has a significantly lower flammability than gasoline". Hey Paul, it’s not only 50hp… because 550hp was on supercharged 5.4L, however, they went with natural aspiration, and boosted that compression from 8something:1 (supercharged version) to 12.5:1.

I’m still curious about propane ratings, given that it “has a significantly lower flammability than gasoline”.

]]> By: PAULhttp://www.stangnet.com/2009/11/05/roush-scopes-propane-ford-mustang-drag-cars/#comment-2212 PAUL Fri, 06 Nov 2009 18:54:32 +0000 http://www.stangnet.com/?p=1571#comment-2212 SO WITH THE ADDITION OF PROPANE, AND 12.5:1 COMPRESSION YOU HAVE INCREASED THE POWER OF A 550 HP FORD GT ENGINE BY 50 HP? AND THIS IS NEWS BECAUSE? A SIMPLE PULLY WOULD NET SIMILAR RESULTS AND CN A GT OR GT500 MOTOR. COOL AS FAR AS GOING GREEN THOUGH SO WITH THE ADDITION OF PROPANE, AND 12.5:1 COMPRESSION YOU HAVE INCREASED THE POWER OF A 550 HP FORD GT ENGINE BY 50 HP? AND THIS IS NEWS BECAUSE? A SIMPLE PULLY WOULD NET SIMILAR RESULTS AND CN A GT OR GT500 MOTOR. COOL AS FAR AS GOING GREEN THOUGH

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