Montego Mufflers!

"MontegoMan562 is a Capri RS Owner" (montegoman562)
08/02/2013 at 13:57 • Filed to: MONTEGO PROJECT, MUFFLERS, EXHAUST

Hey everyone. It's back to work on the Montego soon (hopefully) and I'm thinking of getting dual exhaust put on. It currently has a relatively quiet stockish single pipe exhaust on it. Remember it's a Ford 5.0L 302. Only upgrades are the Holley 4 barrel and Edelbrock Performer RPM Intake Manifold.

I don't have the money for Headers right now - they will have to come later.

Thoughts on brands? Flowmaaster? Magnaflow? Open to options and suggestions. Looking for LOUD but I don't want bad sounding loud.

Whenever I get around to doing it I will probably do a video of the engine sound before and after.

And for the fun/your trouble here's a picture of my engine:

DISCUSSION (22)

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 14:02

I've been happy with my Magnaflows. they're not stereotypically musclecar sounding like Flowmasters, but they do sound good. However, the sound doesn't translate very well through video, so it's not really worth posting. Also, my camera's microphone suck and the sound easily overloads it.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 14:03

I really DO want that "WHOA A MUSCLE CAR IS COMING DOWN THE STREET" sound. Do you think Flowmaster is the only way to that sound?

desertdog5051 > MontegoMan562 is a Capri RS Owner
08/02/2013 at 14:08

The nice thing about Flowmaster is they give you choices of sound level.

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 14:10

I don't think so. I mean, my Mustang sounds kinda like a truck with the combination of exhaust manifolds and Magnaflows. Actually, this video probably does it the best justice.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 14:13

So what all is on there? Is it a 302? You said manifolds, are they stock manifolds or headers? Long or short tube?

MontegoMan562 is a Capri RS Owner > desertdog5051
08/02/2013 at 14:13

That is a huge plus about Flowmaster.

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 14:15

289 with stock manifolds. Also has a 268 degree camshaft and flattop pistons, so it is higher compression which changes the sound a bit.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 14:19

I knew you had SOMETHING in there lol. Thanks for the video though. That's a cool sound.

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 14:25

Thanks. I do want to put in headers eventually, which will change the sound dramatically. Mostly for power. Those exhaust manifolds are choking my power output to 200 at the wheels, when I should be making more like 230 or so. Too bad a good set of headers costs something like $300.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 14:26

I've had my eyes on these. Should be decent, I'd obviously prefer ceramic, but they are budget conscious:

http://www.summitracing.com/parts/hok-6901…

Kinja'd!!!

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 14:31

I've heard that for a quality header, you want to stay around 14 gauge tube thickness and over 3/8" flange thickness. Otherwise, you run the risk of warping and corrosion. However, that's mostly for high-stress applications. Or at least, the warping is. I assume that if it's bolted down nice and tight, and you don't stay at full load for long periods, it'll be fine.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 14:34

I think it would be fine for me, it's just going to be a cruiser. Most I'd ever do is gun it from stop light, onto the highway, or maybe one or two drag strip runs.

One last question, what size pipe are you running? 2 1/2?

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 14:36

2-1/4". Even later on, I'll be putting in a 2-1/2" Magnaflow X-pipe system, rather than the rather basic local-muffler-shop system I have currently.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 14:38

Interesting. I ask about pipe size because I see a bunch of 2 1/2 inch flowmaster 40's on the good old craigslist.

I bet a local shop would put em on for me...

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 15:26

They probably would. 2 1/2" is a much more popular pipe size, and is a little more appropriate for higher power applications, say, up to 300 hp.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 15:44

Cool. I doubt I'll be over 300 at the end of the build, but it's good to have a safety net.

It was listed as 210 stock with the 2 barrel, the standard 4 barrel bumped it to 230. If we want to play the guessing game you can say my holley carb put me at 235 and maybe another 10 for the manifold. Soooo about 245? Maybe pick up 5-10 from doing exhaust to put me around 250-255? Maybe I'm being generous.

I don't have plans at this point to go much further with the engine build. I could easily do a cam and heads to really crank up the power but I think It'll be a blast to drive with just the exhaust (it's already fun).

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 15:49

Sounds about right. I'm guessing my numbers off of the HiPo 289s, which were rated at 271 hp with similar upgrades to mine. If I do put down 230 to the wheels, that would put me in that range at the flywheel. Then I'll be satisfied until I can afford a set of AFR cylinder heads.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 16:15

It's so hard to estimate hp without being the fanboy that goes yea i definitely got 35 for my carb and 30 for my intake and i'll definitely get 25-30 for exhaust!

I can say this much tho - that bump from 210 to our guesstimate of 245 is a HUGE increase. 35 hp doesnt sound like a lot but it has made a huge difference behind the wheel of the car, I catch that power band just right and this thing takes OFF.

Now if it didn't sound like an old ladies car...

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 16:19

Hell, after tuning my Edelbrock from "economy" (which was essentially sputtering along) to the next stage richer, I think I gained something like 10-15 useable horsepower at part throttle, which was an incredible difference! I think I even got a bit more power at the top end, so now I'm giggling like a little schoolgirl as I pull from each stoplight. I don't think it was a 30 hp increase, probably more like 5 or 10, but it just feels like a 30 hp jump. I do try hard to not do the fanboyish horsepower addition, but as you add parts between dyno pulls, it's tough not to guess how much power you have.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 16:21

10 -15 off tune? man I must have got 60 then!

Paul, Man of Mustangs > MontegoMan562 is a Capri RS Owner
08/02/2013 at 16:25

Just a guess. But it was pretty lean before. So that combined with readjusting the timing, yeah, probably 10 hp or so.

MontegoMan562 is a Capri RS Owner > Paul, Man of Mustangs
08/02/2013 at 16:38

No that does sound reasonable with a timing adjustment to match. The Holley runs pretty rich, it's almost over rich I may tune it back a little soon. So maybe I got to a 30 hp gain from it. (man that old 2 barrel sucked) And the Performer RPM is apparently supposed to maximize HP so maybe I got 15-20 out of the manifold. The "optimistic/hopeful" count would be 260 hp from 210 at stock.