hpfiend Posted December 1, 2011 Report Share Posted December 1, 2011 Why does the mustang sound like an angry dog under water, in a cave, or just plain different? A 3" stroke v8 chevy 283 does not sound the same- Have heard an LT1 camaro with flowmaster mufflers and while it sort of resonated similarly it def did not sound like a mustang. Is it the two-piece intake manifold? Doesn't the 4.6 have a plastic one piece? I think my dad's explorer does- does a carb 5.0 not have that sound? Someone told me it was the firing order but later I heard that the LS1 has the same firing order? My c5z has an h-pipe and true duals...not mustang like at all- Are the ford and chevy cylinder heads that different? I have heard 4 valve aluminum, 2v, 3v, twisted wedge big valve, and stock e7s and they all sound similar enough... That's all I know- looking for more input. Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted December 1, 2011 Report Share Posted December 1, 2011 the 4.6/5.4 sound nothing like a5.0 with LTs and a good exhaust. Hell even a fox sounds different between shorties and LTS Quote Link to comment Share on other sites More sharing options...
DKilbourne Posted December 1, 2011 Report Share Posted December 1, 2011 Ever hear a newer hemi with exhaust? I've mistaken the sound for a mustang many times. Not that my thought answers anything, just a thought. Quote Link to comment Share on other sites More sharing options...
hpfiend Posted December 1, 2011 Author Report Share Posted December 1, 2011 the 4.6/5.4 sound nothing like a5.0 with LTs and a good exhaust. Hell even a fox sounds different between shorties and LTS I dunno about sounding nothing alike you must have better ears than me- one of my good friends in highschool had a 97 cobra and it sounded very similar to my 90 coupe even after I put headers/supercharger/h/c/i etc... my dad's 4.6 explorer on throttle sounds a lot liek a mustang and I have heard several new edge 99 plus mustangs that sound like a mustang- even the 03 cobras do if you can hear over the blower whine...never heard a 5.4 that I recall... Quote Link to comment Share on other sites More sharing options...
hpfiend Posted December 1, 2011 Author Report Share Posted December 1, 2011 Ever hear a newer hemi with exhaust? I've mistaken the sound for a mustang many times. Not that my thought answers anything, just a thought. I need to find one on youtube- thanks! Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted December 1, 2011 Report Share Posted December 1, 2011 I dunno about sounding nothing alike you must have better ears than me- one of my good friends in highschool had a 97 cobra and it sounded very similar to my 90 coupe even after I put headers/supercharger/h/c/i etc... my dad's 4.6 explorer on throttle sounds a lot liek a mustang and I have heard several new edge 99 plus mustangs that sound like a mustang- even the 03 cobras do if you can hear over the blower whine...never heard a 5.4 that I recall... My Lightning sounded like a freakin jet Quote Link to comment Share on other sites More sharing options...
CRed05 Posted December 1, 2011 Report Share Posted December 1, 2011 I believe firing order has a lot to do with it, mixed with other attributes. Quote Link to comment Share on other sites More sharing options...
AJ Posted December 1, 2011 Report Share Posted December 1, 2011 just because the firing order is the same number wise doesn't mean its the same cylinders firing. see what i mean? SBF vs. SBC http://image.hotrod.com/f/incoming/9646497+w200/113_0701_03_z+lunati_4_7_swap_cam_test+firing_order.jpg Quote Link to comment Share on other sites More sharing options...
CRed05 Posted December 1, 2011 Report Share Posted December 1, 2011 ^Didn't know Chevy numbered their cylinders that way, goofy. Quote Link to comment Share on other sites More sharing options...
AJ Posted December 1, 2011 Report Share Posted December 1, 2011 ^Didn't know Chevy numbered their cylinders that way, goofy. that is how they are in order of rod alignment on the crank. ford is the one that has it goofy. Quote Link to comment Share on other sites More sharing options...
hpfiend Posted December 1, 2011 Author Report Share Posted December 1, 2011 (edited) just because the firing order is the same number wise doesn't mean its the same cylinders firing. see what i mean? SBF vs. SBC http://image.hotrod.com/f/incoming/9646497+w200/113_0701_03_z+lunati_4_7_swap_cam_test+firing_order.jpg You make a very good point but I think the firing orders are the same- the numbering is different but the same cylinders are firing- ford is 1-3-7-2-6-5-4-8 and if you transpose that pattern to the chevy numbering you get 2-6-5-4-3-1-8-7 which is 1-8-7-2-6-5-4-3 which is the published firing order of the LS1- is that right? someone check me... Edited December 1, 2011 by hpfiend Quote Link to comment Share on other sites More sharing options...
DKilbourne Posted December 1, 2011 Report Share Posted December 1, 2011 Skip to 1:40 Quote Link to comment Share on other sites More sharing options...
hpfiend Posted December 1, 2011 Author Report Share Posted December 1, 2011 (edited) Skip to 1:40 wow- you are right- if they had a 3" stroke I bet they would sound even closer- now I need to look at that firing order and stroke length... thanks! here is an ls1 with flowmaster 40s http://www.youtube.com/watch?v=y5KKaJs4YBU- but its also not true duals like those challengers and the mustang... wonder if there is an ls1 vette with flowmasters... or a trual dual converted camaro- actually aj your 69 camaro with flowmasters should sound similar? c5 with flowmaster 80s- not close... http://www.youtube.com/watch?v=7uZyahKRtP0 but Listen to this gto with flowmaster 40s after looking at the exhaust designs of the mustang, gto, and challenger they have an h- or x-pipe with intermediate mufflers with "long" tailpipes or pipes to resonators or exhaust tips..the corvette and camaro have very short tailpipes... hmm I need to find my videos of dumped flowmasters... not mine but the mustang sound is diminished... I do remember liking mine better with tailpipes on but they wouldn't fit with the slicks and they were a hassle to take on and off... Edited December 1, 2011 by hpfiend Quote Link to comment Share on other sites More sharing options...
hpfiend Posted December 1, 2011 Author Report Share Posted December 1, 2011 ok modern hemi has the same firing order and numbering of the old chevy 1-8-4-3-6-7-2 and a stroke of 3.5 so that means the firing order has very little to do with it and it is more a result of a mid mounted chambered muffler with a crossover pipe and long tailpipes on a true dual setup. quick rpm rise is the nature of a 3" stroke?? Anyone still following? Quote Link to comment Share on other sites More sharing options...
AJ Posted December 1, 2011 Report Share Posted December 1, 2011 my 67' at one point had mid mounted 40 series mufflers with an x pipe and long tail pipes and sounded close to a mustang at idle but not even close at WOT. Quote Link to comment Share on other sites More sharing options...
Patterson Posted December 1, 2011 Report Share Posted December 1, 2011 A lot of it lies in the exhaust port design and shape. Cam phasing, firing order do play a small roll in it. Quote Link to comment Share on other sites More sharing options...
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