ight. well im just trying to figure it all out. i want the car to look sorta modern. so about the body kits i would never ever do a shity job on them and drive around like all the hondas out there. im just scoping it all out.

 

You want a 22+ year old car to look modern. It isn't going to happen. You either like the look of the FB or you don't. If you are going to use this for a daily driver, I'd put a stock motor in it and enjoy it. Bridgeports are pretty rough for daily driving. Just like these guys have been saying, with a performance car, you need a performance budget. Cheaping out will net you more headaches down the road

 

these are the housings that are going to be used in my engine

 

borla vs. magnaflow

 

I HAVE A 22 YEAR OLD MAZDA AND I THINK IT LOOKS REALLY MODERN.
your guys forget to each their own. do as u wish its your car. remember apexi makes a full cat back exhaust for the second and third gen rx7. so i would belive that a apexi N1 would be fine for your 7. thats what i have on mine and i love the tone. i removed my cats so when i had a borla it was way to loud. so what i did was buy the apexi N1 universal (the real one not the fake ****) and also the silencer. so now i have the option to quite it down so i wont **** the neighbors off and when i go for a cruise i open it up. also i love the way the N1 looks on my seven. its looks alot better then that old tired looking two exhaust tips. those tips remind me of the old pacesetter ****.


OH AND WAS UP KGRAY HAVENT SEEN U IN A WHILE. I NEVER GOT TO SAY THANKS FOR PHOTOSHOP ON MY 7 THANKS

 

You just might be my new hero.

 

i once was in your position a while ago..im 21..but when i first got this car..i wanted to put the body kit that you have linked....once i learned more about the grace of the 1st gen rx7..i understood more..I also got my rare 83 s from my dad who bought it brand new many years ago. i just dropped a rebuilt 12a from atkins motor in..i also just installed my rb header and presilencer..to be honest..i grew to love the look of the rb muffler even though i dont have one..the look of a n-1 or canister mufller looks cook on the other ricemobile..but not really on this one..and its easier to get a modified exhaust ticket here in WA with the canister..rather than the rb powerpulse...for this car to look modern..i have grown to love the look..the only thing that bugs me is the tire gap..easily solved..just buy new springs and shocks..lower it about an inch..an it looks different..don't go father than an inch otherwise you will run into problems with tirerubbing and all that stuff..plus you dont need more than an inch unless this is gonna be a track car...hope this helps..

 

Looks like a 22 year old car with heavy, oversized wheels with bandaid tires. Hardly would call it modern. A more tastefull wheel and tire combination and you'd have one sweet FB my friend.

 

^Yeah, that's what I was thinking as well.

 

If you are trying to make a bridgeport car a daily driver and you don't know much about rotaries, you are going to regret it. Trust me on this one.

To answer your other questions: no bigger than 2.5" for the exhaust. There's no point in going bigger on the street. By the time you quiet a 3" system down enough to be used on the street, any performance you might (or might not) have gained will be lost, and then some.

Apexi N1s are loud. Rotaries are loud. Bridgeport rotaries are louder. Bridgeport rotaries with Apexi N1s are just bad. Go with Borla.

 

markusj08 :

Easy there fella.Percentsevenc and the other guys gave the correct answers.Not trying to put you down on the idea.We have all had some crazy ideas(most still do,haha).

You have to choose a proper quality muffler/silencer.Like the rest said,the rotary`s heat is extreme,and will kill a normal fibreglass silencer/muffler very quickly(sometimes in hours,not even days)

Its very important that you do your research if you will be going BP.They are VERY finicky,and will produce less hp than they should for very "stupid" reasons,one being silencing.

Read about them,there is a special art to building every BP & PP.

Ps: Nothing wrong with trying to keep a 22 year old car updated in the looks department,but use your head when you do so.If you like Fart Canon`s,its ok!Just make sure you buy a Quality one ,with Rock wool or something high temp on the inside.

Karis- Ex BP Driver

 

Can you work on your spelling and grammar? I don't have good grammar, but yours is really confusing

 

i understand the BP will not be the best dailt driver. but the power is so nice compared to a stock port. so maybe every morning i will have to set aside more time to let the motor warm up and cool down. and so what if it doesnt want to start or run on a 30 degree day. for me. i feel its worth the sacrafice. just my pinion, if i really wanted a nice daily driver i woulda got a Prius or a geo Metro.

Now back to the exhaust system. I now understand that you can't go cheap. So what would be the ideal way to go. Something like this?

Two of these and a normal tailpipe that doesnt reduce sound?

http://www.borla.com/products/product_multi_detail.aspx?cat=2&type=43&desc=Unive rsal+Mufflers%2c+Tubing+%26+Hardware|Turbo+Muffler s

or one of these
http://www.borla.com/products/product_multi_detail.aspx?cat=2&type=43&desc=Unive rsal+Mufflers%2c+Tubing+%26+Hardware|Turbo+Muffler s

plus one of these.

http://www.borla.com/products/product_multi_detail.aspx?cat=2&type=44&desc=Unive rsal+Mufflers%2c+Tubing+%26+Hardware|Boomer+Muffle rs

or

http://www.mazdatrix.com/e79-85.htm

 

I'm not talking about cold starts. What I'm saying is that bridgeport rotaries are loud and annoying to drive. They make no power until around 5000 RPM, no fun in any sort of traffic. To get the best use out of them, you'll need an aluminum flywheel and heavy duty pressure plate at the very least. This makes it even more difficult to drive. You also either have to spend big bucks and use ceramic apex seals, or deal with all the problems of carbon ones (very poor low RPM sealing, and they'll last you 25K miles if you're lucky). Did I mention how loud bridgeports are? Especially when you wind them up far enough to make any real power, you're going to be attracting a lot of attention of the flashing lights type. Driving it daily will be a chore, not a pleasure. There are many on this forum who argue that by the time you quiet a bridgeport down for the street, you're going to be making more power with a streetport anyway.

Now, it's worth mentioning that bridgeports CAN be tuned to make good midrange power, but you're sacrificing all the high RPM benefits that make bridgeports worth using in the first place.

There's a reason streetports are called "streetports." There's also a reason bridgeports are NOT called "streetports."

[/disclaimer]

If you're bound and determined to do this, my suggestion is to use two 2.5" offset/centered Borla ProXSes (http://www.borla.com/proxs/pages/muflroff_ctr.php), one in the location previously occupied by the cat, and one in the normal muffler location. Use all Racing Beat thickwall 2.5" pipe and a Racing Beat single-outlet header. IT WILL PROBABLY STILL BE VERY LOUD! But any more muffling and you may as well have just gone with a streetport.

 

Ok, by the sound of it this is basically what you want, right? Nice open exhaust with a modern tip. Here you go. This is my set-up, All borla.

First start off with the RB header. Just the regular header will do, You can get the road race if you want, but remember, now you have 2 exhaust to worry about instead of one, so double everything. I went with the single exhaust.

Best pic that I have, and it gives me a reason to do it: RB header:

$120 on the forum, used.

Got an autozone 2" to 2.5" adapter, it was like $3. Welded that to the Cat flange, so now it bolts to the header. the 2.5" side you weld to the Borla ProXS single inlet/offset outlet muffler, 85$ on ebay.


After that, It was around $100 to get the 2.5" piping done at a muffler shop, from there to my rear muffler, a Mazdaspeed Protege muffler:

Nice Modern tip, even has Mazdaspeed engraved into the side of it, for the nice sum of $140 New from Mazda.



Here is what it looks like on my Protege, same muffler:


Now, The muffler looks great on the protege, and somewhat good on the RX. After some time, I have been thinking of cutting off the tip that is on there, and replacing with a generic chrome 2 pipe. Those just look waaay better than one big 4" hole.

Now, if you get the muffler from mazda, ask for the round tip. Mazdaspeed Protege mufflers came in round and oval tips, Oval were the later years. The round tips were made by Borla, and the ovals by RacingBeat.

Complete custom Borla Exhaust system, 2.5" all the way through to the MSP muffler (2.25"), and spent $448 on it. Cost wise, better than the complete RacingBeat system. Longevity? Who knows, RB units are awesome and last forever.

Sound clips:
http://www.youtube.com/watch?v=XMEMkpTTLIw
http://www.youtube.com/watch?v=5ivW32cr0bo
http://www.youtube.com/watch?v=V1cPD1TyY1U
http://www.youtube.com/watch?v=4LzgsqQEAiY
http://www.youtube.com/watch?v=qaXGn9Uzk1k


My fingers hurt

 

that looks pretty good and queits it down. i have a header that looks like this.

 

With that header, you either need a collector or you'll need to do something with a dual system. As they've said, daily driving a Bridgeport will be quite irritating at best. Not only will it be loud but you'll have to drive at a minimum of 3,000 RPMs to prevent the car from bucking and bogging any lower, which just adds to the whole noise issue. My suggestion, get something boring for a daily driver and keep this as the fun car.

 

i can turn my other 7 into the daily car. but i can drive my truck aswell. kgray and i have been talking and we think we figured out a good way of keeping it quiet and still have performance. and if the daily driver thing becomes a big issue. then ya. i will just use my other 7 if i have to. but until i get there and see it for myself im not gonna work on that car yet. as they say you gotta learn the Hard Way. that way when im all old and some 16year old who thinks hes some hott shot and whats a BP i can tell him dude its gonna be a little rough for a daily driver. :]

 

Excellent. It's good to see you starting to figure some things out LOL. I drive an 89 RX-7 as a daily driver. It's a GXL so it's n/a and not incredibly fast. It'll just get some minor mods for performance and reliability but nothing crazy. My FB will be my fun car to take out and have fun with

 

Yep. I mean i can allwayz but a Ford Fiesta for 300 bux and but a cold air intake and drive that around to get my 30mpg. lol

 

Brideports are a compromise port used in racing classes where peripheral porting is not allowed. A p-port is superior in every way. It has more power and can even be pulled down to a lower RPM as you let out the clutch in 1st gear. That is to say it is more streetable than a bridgeport. However the noise issue with peripheral ports should not be ignored. Hmm, maybe a whole bunch of borlas is a row would work?

 

As long as you've got something else to fall back on, you'll be okay. Don't get me wrong, I'd love to have a bridgeport (or preferably peripheral port, with a nice big turbo ) street car. I just don't think it wise to use that as one's only daily driver, especially if that one is new to rotaries. But since you've got other vehicles, go for it, and good luck.

 

Agreed, if you've got the cash or can modify your own housings, peripheral ports are the way to go. A bunch of Borlas would work, but that's still heavily restrictive for a port that needs to breathe. Better to use a turbo to quiet it down.

But since he's already got the bridgeport motor, there's no reason not to use it.

 

Correct. And right now i don't need all that power.

 

The question now is do i run two borla pro xs or just one?