Does anyone run glasspacks on their FE? If so how do they sound? I am curious to see if i should put them on my truck or just get some flowmaster 40 series mufflers. any opinions or sound clips? Thanks

 

Dude....there glass packs! They always sound good! lol......most people prefer modern mufflers though. I love glasspacks Im running them on my 68 right now but I will probobly go to dynomax ultraflo's next.

 

Love to hear a 390 wrapped up and cackleing out the pipes on a heavy downhill compression.
Question is, do you want to hear the radio? They are a lot louder crusin at 60 with a 4.11 rear than a 3.25.
I've gone to quieter exh., the louder they are, the more peddle I use.

 

I ues a pair of 36" long glass packs on my 66 F-100 4x4, they are loud shifting up but are ok at speed. I use a pair a Magnaflows on my 428 in my Galaxie, I like the sound of the Manaflows in the car, but for a truck ya got to love the glass packs.

 

FE's always sound good thru a set of glass packs and you can buy them anywhere..

I used to have them on mine but switched to a complete 3" stainless exhaust with stainless Jegs muffler.

I love Stainless..

jd

 

what size glass packs should i look at getting?

 

It all depends the long ones are nice because they start talkin when you get into them and sound nice just cruising, so there kinda quiet at regular rpm. The shorties....now those are some loud cracklin suckers, I like them both if I could swap exhaust out every time I wanted to I would and I would have the pipes and mufflers hanging in my garage for whenever.

 

Yeah glasspacks sound great when new but they dont last and they are very restrictive at higher rpms.That strait through design looks very good but the turbulance from those little louvers inside will shut down your motor at higher revs. A good set of turbo mufflers will sound good not drive you out of the cab and not get you tickets. I do not like the flowmaster sound much.

 

Never had that problem........I personnally like the sound of "Broke In" Packs. There arent louvers its a mesh screen and fiberglass packing in a hollow tube...tame as a turbo just not as big around.

 

OK some are louvered inner pipe some are screen.Turbo mufflers and Flowmasters use a multi chamber design to reduce noise without backpressure.

 

True flowmasters do.....and some fully felded mufflers do, but not turbos...Turbo mufflers are just as cheap as glass packs they just give a mellower tone. Done confuse a flowmaster Fully welded muffler with as turbo muffler.
Glass pack
http://www.carexhaust.com/Mufflers-G...ck_Muffler.jpg
Turbo
http://www.hpfreaks.com/images/produ...Flo_Welded.jpg
Flow Master welded
http://www.carexhaust.com/Flowmaster...es_Muffler.jpg

Personally I dont see how the flow master flows better with all that restriction in the way but it is what it is.

 

I dont know why they call your posted muffler a "turbo" muffler but it is NOT what I am refering to.
<p> As most of you know the Chevrolet Corvair (sorry for the fowl language but bear with me) was a compact rear engine economy car from the 60s.This car featured a flat or horizontally opposed 6 cylinder engine mounted at the extreme rear of the car.Because of its location this engine required the muffler/mufflers to be mounted extremely close to the engine.The high heat transfered to the short exhaust would burn up the fiberglass packing in a conventional muffler.Also if unburned gasoline built up in the muffler/s the engine heat could cause them to explode.The optional Turbo engine Corvairs made the heat problem even worse.
<p>Engineers had to design a new muffler with low restriction and high heat resistance.The 3 chambered design that resulted was the "Turbo" muffler.This muffler soon became very popular with hot rodders because of its low back pressure. The after market today has several copies of this GM designed muffler. It has been one of the most efficient designs for over 40 years.The link posted shows an internal view of a true "turbo" muffler.

http://www.a-1performance.com/super_turbo/

Sorry to be long winded but I guess I got my horn stuck again.

 

As a kid we used to get 12in. glass pacs and have em welded on backwards so those little scoops didnt grab any sound and then drive em home 20 miles at 75mph and run the water hose up the tail pipe and get rid of what ever was in em. Now those would talk to ya. lol I thought I,d outgrown that until my son wanted Flowmaster 40,s dumped in front of the rear axle. At least you could hear the am radio and Bill Mac with the glass pacs. lol

 

Egoman, choice pipe setup solution... use a cutout for option two exhaust save the labor time for BBQ / beer ..hehehe

 

LOL good idea Redmanbob, some one on here has electric cut outs so at the light when that ricer pulls up you can flip the switch lol