exhaust questions

so ive finally buckled down and decided to get a new muffler on my 91 3.1 and i've got a couple questions for you guys. I'm thinking about getting like a flowmaster, just cos that would be cool. If i'm gonna replace it, then why not go a little further and make it sound awesome. so if i was to get a flowmaster, then what size is the inlet piping? and which magnaflow model would work best on my car? i was thinking the delta 40 since its quiet in the car and like to hear my music. or are there any less expensive alternatives to magnaflow that give the same features?

thanks guys!

Check Summit Racing's website. They have a number of alternative makes that are similar to FM's stuff.

A parts store should be able to look up your car in the exhaust reference book and tell you what size the pipes are at each point. Has it been replaced before, or OEM?

You can wrap a string around it, measure the length, divide by 3.14 and that'll give you your outside diameter.

so i ordered a muffler from summit. i just got a regular summit chamber muffler. its a great replacement for the OE muffler. i had to go to autozone to get the right clamps, fittings, and a tip to direct the gases away from the plastic bumper cover. if i didnt point it out, i dont think you would notice it, except i painted it with silver high heat pain just for good measure and hopefully this one wont get all corroded like the last one. one thing i love about this muffler is the sound. i knew it was gonna sound better than the stock one, but i get a bunch of compliments on the sound by my friends. my brother told me that it sounded like a boat, haha. when i hear that, i just think of a big house boat with 2 high displacement mercury engines, haha. and this thing packs on the power in the higher rpm ranges. today i kept punching it to get that feeling and every time it ran out first or second gear i kept thinking, man this thing REALLY pulls!

so i ordered a muffler from summit. i just got a regular summit chamber muffler. its a great replacement for the OE muffler. i had to go to autozone to get the right clamps, fittings, and a tip to direct the gases away from the plastic bumper cover. if i didnt point it out, i dont think you would notice it, except i painted it with silver high heat pain just for good measure and hopefully this one wont get all corroded like the last one. one thing i love about this muffler is the sound. i knew it was gonna sound better than the stock one, but i get a bunch of compliments on the sound by my friends. my brother told me that it sounded like a boat, haha. when i hear that, i just think of a big house boat with 2 high displacement mercury engines, haha. and this thing packs on the power in the higher rpm ranges. today i kept punching it to get that feeling and every time it ran out first or second gear i kept thinking, man this thing REALLY pulls!

Cool. :iceslolan Maybe I'll do that too. I'm gonna need one anyway...

Now you can bust out some 1-1/2" holes in the airbox with a holesaw like I did, and be really barkin' from both ends :grinyes:

Cool. :iceslolan Maybe I'll do that too. I'm gonna need one anyway...

Now you can bust out some 1-1/2" holes in the airbox with a holesaw like I did, and be really barkin' from both ends :grinyes:

my next step was gonna be modifying my air intake. i was thinking of getting one of those POS things off ebay where they supply the tube and filter. but there is this one copmany on there that makes a kit that looks alot better than the rest. the filter is mesh, like the k&ns and not cotton crap. they also had a picture of it installed on a lumina and it looked like it was directed right at the radiator. that looks like a pretty sweet deal to me. i figure i would have to paint it black and keep that ricer chrom crap outta my engine bay and maybe make up a primitive heat sheild, and i would have an awesome setup.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=38634&item=7976155722&rd=1

tell me what you think

my next step was gonna be modifying my air intake. i was thinking of getting one of those POS things off ebay where they supply the tube and filter. but there is this one copmany on there that makes a kit that looks alot better than the rest. the filter is mesh, like the k&ns and not cotton crap. they also had a picture of it installed on a lumina and it looked like it was directed right at the radiator. that looks like a pretty sweet deal to me. i figure i would have to paint it black and keep that ricer chrom crap outta my engine bay and maybe make up a primitive heat sheild, and i would have an awesome setup.

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=38634&item=7976155722&rd=1

tell me what you think

I'm a little skeptical. A filter element alone that is any good should cost more than that. Since you can't see the filtration level by looking at it, I'd only go with a brand of filter that stands behind their product, personally. Their terms and conditions leave them pretty well open to ship you anything, and they will not refund, only exchange.

I'd stay away.

I just used a K+N panel filter and perforated the stock box, and the results are noticeable. I put a hole in either side, and one in the bottom. Without a ported intake and a larger throttle body, I doubt mine could flow much more air than it currently is.

so instead of converting to a cai, i can just bore some holes in the intake filter box? i currently have the drop in k&n filter. 93 eurosport 3.1 4 door. also i have recently replace my bad catylic converter with a universal converter. now i would like to install a new muffler. the pipes are good however i want a muffler that is going to enhance the sound of the car. are there any suggestions as to what brand/model? can i just use clamps to install the muffler or should i get it welded? i would like to stay below $100.00. thank you, all input is highly appreciated. also are there any mufflers that would improve the flow of things from the engine with out have to replace the headers and the catylic converter?

do what i did. just get one from summit, its like $40. it was part number SUM-633220. its the one with the offset inlet and the center outlet, like the OE muffler. my old muffler rusted off so i didnt need to get it off, just unbolt it. im guessing you dont have that convinience, haha. and i just put mine on with an exhaust connector and 2 exhaust clamps. i dont know what size connector you need exactly, because the one i got didnt fit well on the other side, so i cut slits down the side and clamped the exhaust clamp down tight so it would bend the connector on the pipe and get it on there real tight. i also needed one of those end pieces that would derect the exhaust gases coming out the end of the muffler away from your car and put that on with an exhaust clamp. when i put all that on, i made brackets to hold the muffler to the old hangars. i used 16 gauge angle iron and did some bending and cutting and screwing and drilling. and then bolted the dealies on im sure i could get pictures of you needed them

thank you very much, pictures would be wonderful. jeffcoslacker, should i try to purchase the cai or should i just do what you did? which one do you think would be more beneficial?? thanx

can I know what brands name of cai should I buy and part number

know where to get some headers for 3.4l lumina?

ey so u just drilled a few holes in the box? does it matter where they go?

did it make it louder?

ey so u just drilled a few holes in the box? does it matter where they go?

did it make it louder?

Oh yeah, it booms when you stand on it.

I used a 1-1/2" hole saw on a drill, you can get them for almost nothing at the hardware store if you don't have one.

I knocked out three holes, one in the bottom of the box toward the front, one on each side. Take the box out before drilling into the bottom, the A/C reciever and lines are right under it.

I used to have a pic where you can see the holes, I'll try to find it for ya'

You can't see them real good, but you can see the one facing inboard, and you can see the top of the A/C reciever through the one in the bottom.

http://images5.theimagehosting.com/airbox.JPG (http://www.theimagehosting.com)

couldnt u just do the top of the thing instead of the bottom?

i couldnt figure out how to get the whole box out, just the top lol

couldnt u just remove the whole box and replace it with like a cone filter? wouldnt that have teh same effect?

and this is my engine pic

http://www.cardomain.com/member_pages/show_image.pl?bg=CCCCCC&image=http://memimage.cardomain.net/member_images/9/web/2157000-2157999/2157951_7_full.jpg

and the big black thing next to the windsheild washer fluid reservoir on the right (the big black thing to the left of it) is the box right?

No, the top is the filtered side, you wouldn't want to do that, you'd be sucking unfiltered air into the motor.

Yeah, you could put a cone on it. I'm just cheap...:iceslolan

If I remember right. I think you just grab the bottom and pull up, it's got tabs and rubber grommets that it pops into place on, like a sidecover on a motorcycle. There might have been one bolt to keep it from popping apart...

do i have to undo any hose clamps?

and is there anything connected to it? (like wires) i remember there was somethin that made it difficult to even take the top off

do i have to undo any hose clamps?

and is there anything connected to it? (like wires) i remember there was somethin that made it difficult to even take the top off

No, just the duct that goes out by the left headlight. It's just a push fit, too.

You can unclamp the lid from the intake duct, get it outta the way so you don't have to fight with it.

ok so i can just pull the box completly out right?

I'll look at mine again tomorrow...I don't remember clearly. I think there might have been a bolt that secures it, don't want you to try to yank it out and break it.

But I do remember it was no big deal, took less than five minutes to remove it...

well ya im gonna do it early int he morning, around 7:30 or so hopefully ill get my ass outta my bed, cuz at 9:30 i gotta go to my friends dads test (were gonna just play games lol)

and then i gotta go straight to work 12 to 10 so ya

u just did both sides, and the bottom (facing the front of the car, well closest to the front) right?

One facing in toward the motor, one facing the battery, one facing straight down.

I don't think it would make much difference where they are, I was just trying to stay in the meatiest areas of the plastic so it wouldn't want to crack...

ok well then hopefully i can figure out how to detacht he box in time, u got msn or aim?

hey jefco i just tried to go and take the box out to drill

but ya its hard, i need to disconnect the metal thing in between the box and the tube

and i couldnt get it out do to the tube where the air sucks in, so i think i gotta take the top off so theres a lil more room, howd u get it out?