best exhaust for f body

86 TWIN BIRD · 11-07-2005, 01:37 PM

I have 2 1986 gta trans am's. I Just want to know wat would be the best exhaust systems to put on. I want them to be loud.

97cavalier · 11-07-2005, 09:36 PM

Quote:

Originally Posted by 86 TWIN BIRD

I have 2 1986 gta trans am's. I Just want to know wat would be the best exhaust systems to put on. I want them to be loud.

glass packs lol, put like thoes hush power mufflers on there from flow master, or what ever they are called.

86 TWIN BIRD · 11-09-2005, 04:51 PM

thanx how much do they cost?

97cavalier · 11-09-2005, 08:04 PM

Quote:

Originally Posted by 86 TWIN BIRD

thanx how much do they cost?

um glass packs are cheep they are like $20, the hushpowers are like $219, and you don't want them. They are not what you are looking for.

driftinggrifter2 · 11-09-2005, 08:27 PM

id have to say maybe magnaflo

ikeyballz · 11-10-2005, 04:24 AM

if you're going to glasspacked, why use mufflers at all? STRAIGHT PIPES. seriously

97cavalier · 11-10-2005, 05:58 PM

Quote:

Originally Posted by ikeyballz

if you're going to glasspacked, why use mufflers at all? STRAIGHT PIPES. seriously

ya, but glasspacks will give you some back preshure.

86 TWIN BIRD · 11-12-2005, 12:14 AM

thanx

daveshapellSVT · 11-15-2005, 11:50 PM

glass packs suck in my opion, plus he needs wider diameter ehxuats to make some power. i say get your self a flowmaster catback exhaust. well worth it and when used with an aftermarket Y pipe that will be all the loud you will want.

tuske427 · 11-16-2005, 10:51 AM

I didn't know they made a GTA Trans Am in 1986. I thought they came out in '87. (Gran Turismo Americana)

As for "glass packs"- they rob horsepower. Research how mufflers work and I think there are 2 main ways they generally work. 1 is sound absorbtion. the other is with the sound waves/ cancellation, etc..

the glass packs are literally that- filled with fiberglass packing to absorb the sound. this is not good for exhaust flow. the packing hinders the exhaust flow.

companies like flowmaster, etc spend thousands of dollars and hours of R&D to manipulate the sound waves while maintianing decent flow.

take advantage of their engineering and buy a muffler that is designed for high flow and sound control (they make loud and quiet versions. talk to a sales rep for exactly what you want) . I had a set of hooker mufflers (with headers and straight pipe on my '68 firebird) that I could literally see straight through . they were loud. I loved it!

exhaust is more than just back pressure, btw. there is a science to it. tube diameter, the "scavenging" effect, and overall design of the exhaust tubing/ layout all play a critical factor in having the optimal setup for minimal power loss.

daveshapellSVT · 11-16-2005, 04:26 PM

yea my cousin had a 86 GTA. he's also an idiot and thinks he had 245 horse from the factory lol GLass packs is the devil. i wouldn't get them even if they didn't kill power just cause they are cheap redneck mufflers. hey pa i put me a glass pack on my dale hernheart look a like lumina. ye ha.. FLOWMASTER!!!!!!!!!!!!!!!!!!!!!!!!!

86 TWIN BIRD · 11-16-2005, 05:49 PM

Quote:

yea my cousin had a 86 GTA. he's also an idiot and thinks he had 245 horse from the factory lol GLass packs is the devil. i wouldn't get them even if they didn't kill power just cause they are cheap redneck mufflers. hey pa i put me a glass pack on my dale hernheart look a like lumina. ye ha.. FLOWMASTER!!!!!!!!!!!!!!!!!!!!!!!!!

Lol yeah im getting headers soon and you are right they didnt make gta's in 86 but i have the parts form an 88 gta on my 86 trans am. So technically its a 88 gta with 86 body. but i'll probly go with the catback system u talked about thanx for all the help (every1 that posted)

And also a GTA does have 245 horse from the factory i can prove it to any of you if ne1 wants.

86 TWIN BIRD · 11-16-2005, 05:50 PM

also sry i never did a quote in a message b4 so i didnt know how to

daveshapellSVT · 11-17-2005, 05:10 PM

they did make the GTA in 86, i know cause my cousin had one. and i have tons of information on what yrs put out what power. check out third gen.org.. in 86 the GTA had 225hp i believe and like 330ftlbstq. trust me on this one. in fact third gens didn't make 245 until the 90's.

http://www.thirdgen.org/newdesign/tech/techdb.shtml

Correction, from what that site says they started making GTA's in 87. my cousins car musta been an 87 then cause i know it was a GTA, but anyhow in 87, when they seem to have began making them, they made 225 hp at the crank and 330 for torque. In 88 which is what drivetrain you have they made 230 and 330. that sites cool too it tell all the differences along the yrs. 1990 is the first time the F-body has 245 with the l98.

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