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  #31 (permalink)  
Old 07-10-2007, 11:05 AM
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well after listen to them for a bit i started to really hear them. before is was more thinking of how to keep it from hitting the cross member so i didnt pay to much attention to the sound. but after listening to them they sound just like open headers only quieter not by much tho. im really loving the way they sound! and i have no clue where ppl are saying they dont flow well. there is very VERY little back pressure. i know this because when you have open headers your driven down the road and you let off the gas it starts to pop and crackle well the hornies are doing exactly that! plus if they flowed poorly how would i hear the sound of open headers??? so to all that say they flow poorly i dont believe it not one little bit! im not calling anyone liers but i just dont see nor hear them flowing poorly. i could not get a sound clip up yesterday but i am going to get a clip here in just a few min. and i gotta tell you the performance is awesome! nothing big but it is noticeable.

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  #32 (permalink)  
Old 07-10-2007, 11:59 AM
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here is what my car sounded like with the delta flow 40s...
http://www.youtube.com/watch?v=xZtwarPGbXM

here is what my car sounds like with 32" purple hornies...
http://www.youtube.com/watch?v=DXA3X5V2iL8
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  #33 (permalink)  
Old 07-10-2007, 12:06 PM
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Just because a muffler sounds loud doesn't it mean it flows well. It can also mean it is a low quality muffler makes a bunch of back pressure and doesn't muffle sound very well. furthermore, a loud sounding engine can seem faster when it really isn't.

Did you look at the web site that I listed before?

For example:

2-1/4 glass pack flows 133 cfm and is loud as hell

2-1/4 stock OEM muffler flows at 149 cfm and is very very quiet.

2-1/2 dynomax super turbo flows 268 cfm and is also very quiet.

So which is the better muffler?

A loudass flowmaster doesn't even flow as much as a quiet dynomax super turbo.

So in theory, if you use dual 2-1/4 glasspacks for a total of 266 cfm, it would have enough flow for a 120 hp engine (2.2 cfm/hp for zero loss). That is, after 120hp, the dual glass packs start killing power. Twin dynomax's start losing power after 240hp.
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  #34 (permalink)  
Old 07-10-2007, 12:37 PM
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Quote:
Originally Posted by 454C10
Just because a muffler sounds loud doesn't it mean it flows well. It can also mean it is a low quality muffler makes a bunch of back pressure and doesn't muffle sound very well. furthermore, a loud sounding engine can seem faster when it really isn't.

Did you look at the web site that I listed before?

For example:

2-1/4 glass pack flows 133 cfm and is loud as hell

2-1/4 stock OEM muffler flows at 149 cfm and is very very quiet.

2-1/2 dynomax super turbo flows 268 cfm and is also very quiet.

So which is the better muffler?

A loudass flowmaster doesn't even flow as much as a quiet dynomax super turbo.

So in theory, if you use dual 2-1/4 glasspacks for a total of 266 cfm, it would have enough flow for a 120 hp engine (2.2 cfm/hp for zero loss). That is, after 120hp, the dual glass packs start killing power. Twin dynomax's start losing power after 240hp.

what would the cfm be for a 3" louvered glass pack??? from that test to my hornies is a 3/4" difference that alone has to make a good increase. also how long are the glass packs they tested and what brand??? yes you lose hp with more back pressure but you gain torque. because back pressure creates torque correct??? and more torque on the street is a very good thing to have. but to be to restrictive is a bad thing and i understand that.

Quote:
Originally Posted by 454C10
furthermore, a loud sounding engine can seem faster when it really isn't.
i know that very well look at all of the rice burners!
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  #35 (permalink)  
Old 07-10-2007, 12:50 PM
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Quote:
Originally Posted by elcaminodragster
here is what my car sounded like with the delta flow 40s...
http://www.youtube.com/watch?v=xZtwarPGbXM

here is what my car sounds like with 32" purple hornies...
http://www.youtube.com/watch?v=DXA3X5V2iL8
wow, those suckers are loud!! Good thing you don't live next door to me!!! LOL

One thing I noticed on your first video is the shot of the differential and exhaust going over it. It looks like the pipe was bent into a "U", then welded to the tail pipe and muffler? That's a real flow killer the way the pipes are stretched and cobbled together. My truck is the same way. Didn't notice it until some time later. Realy ticked my off the way the guy butchered my new muffler install. Oh well.

Mark
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  #36 (permalink)  
Old 07-10-2007, 12:54 PM
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i know for a fact that the ppl across the street from me arent happy about it at all the hated my flows but they never said anything. i bought a tubing kit from jegs. and it came for it to be set up that way but the tail pipes didnt work so i had a local shop weld some on for me. so what you saying is having the muffler right before the axle and then having it jump over the axle into tail pipes is bad for flow???
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  #37 (permalink)  
Old 07-10-2007, 01:14 PM
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Quote:
Originally Posted by elcaminodragster
so what you saying is having the muffler right before the axle and then having it jump over the axle into tail pipes is bad for flow???
No, the location is fine. It just looked like my mess too.
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  #38 (permalink)  
Old 07-10-2007, 02:48 PM
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i know this doesnt have anything to do with the hornies, but ive run a lot of glasspacks and i go more for the sound than the flow, i just never really cared for a long time, but anyways, i got a chevy with a 350 and burn out glass packs that hook right up the header flanges with a turnout right after the cab and u get that real ratty rippin kinda sound, the best way i can explain it is like the opposite of a deep throaty kinda sound. I have the exact opposite with the dodge i got, i got 3 inch straight pipe coming off the headers that runs into 4 1/2 inch stacks (no mufflers) and thats just a sweet sound, the closest thing ive heard is late models running on a dirt track. its just a wide open, big horse power kinda sound. but it is hooked up to a lil 318 so thats kinda gay and gets funny looks, but hell. i just like to be as loud as possible, and its kinda funny to have the exhaust fumes thrown in the drive through window at mcdonalds. anyways, just throwing my 2 cents out there
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  #39 (permalink)  
Old 07-10-2007, 03:39 PM
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They sound great..............might have to get me a set after my homemade chambereds go....1/8 and 3/16 ths steel so itll be a while
Shane
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  #40 (permalink)  
Old 07-10-2007, 05:12 PM
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i bout a set of red thurst glasspacks,loud when you get on it,ok at crusing
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  #41 (permalink)  
Old 07-10-2007, 06:18 PM
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ya im really starting to love the way they sound. this morning i went for a job interview at 730-800am something like that and when its really quiet out that early in the morning you really get to hear just how loud they are. the drive there i had to get on the freeway and its not a deep rumble but you hear in screaming in your head the whole drive ! i got home and my ears where ringing just enough that it put a smile to my face ear to ear . of course it will get quieter once i put carpet in with insulation but thats not gonna happen for a few more weeks. so until then if i gotta drive more then 10min im bringing ear plugs!

the last pic shows my interior a little bit
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  #42 (permalink)  
Old 07-10-2007, 09:40 PM
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deffinately dont want ears ringing.....being able to hear your nice sounding slightly quiter hotrod is better than sonding good and loud but not being able to hear it........im not saying make it quiter just make sure you wear hearing protection.
Shane
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  #43 (permalink)  
Old 07-10-2007, 09:44 PM
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Quote:
Originally Posted by Chevrolet4x4s
deffinately dont want ears ringing.....being able to hear your nice sounding slightly quiter hotrod is better than sonding good and loud but not being able to hear it........im not saying make it quiter just make sure you wear hearing protection.
Shane

the main reason i hear it so much inside the cab is because i dont have carpet or insulation. check out my photo album. i need to fab up the bracket for the passenger seat before i do the carpet.
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  #44 (permalink)  
Old 07-10-2007, 10:01 PM
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yeah i saw that i was just encouraging the ear plug usage the insulation will lower the incab dBs quite a bit
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  #45 (permalink)  
Old 07-10-2007, 10:06 PM
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Quote:
Originally Posted by Chevrolet4x4s
yeah i saw that i was just encouraging the ear plug usage the insulation will lower the incab dBs quite a bit

i havent even had them a full 2 days yet and im really wanting the insulation lol. i wanted loud and i got it. funny i wanted to hear it loud now i dont wanna hear it lol. i love it tho!!! boy do i LOVE IT
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