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Author Topic:   NEED INFO ON EXHAUST SYSTEM
johnmustang
Gearhead

Posts: 4088
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001

posted 01-03-2002 09:28 PM     Click Here to See the Profile for johnmustang   Click Here to Email johnmustang     Edit/Delete Message   Reply w/Quote
How will the 50 and 70 series flowmasters fit under a 65 2+2 fastback ? Do I need centered inlet and outlet, or , do I need offset inlet and outlet. Am I better off with 2 or 3 chambers. Cathy doesn,t want it to loud , but , she does want it to sound deep and rumbly ( my wifes description ). She likes the sound of the 5.0 rumble. I know that I have asked this before , but , I never got any solid answers , so this time please don,t hold back, I will be having the system put on in the next 4 to 6 days. Please help me out with this. It will be going onto a 289 with 2 inch stock exhaust manifolds. Around 300 to 325 horse when done. The main thing that Cathy does not want is the reverberation coming back into the car.

JOHN

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65 2+2 FASTBACK
68 COUPE
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member: Vancouver Island Mustang Association
www.vima.stangnet.com
M&M #1710
MyPhotoPage

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V8 Thumper
Gearhead

Posts: 3267
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 01-03-2002 09:40 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
The two chambers might rattle your teeth loose... neighbors may move away, windows may shatter... no, just kidding . But they are aggressive sounding, especially without tailpipes(up & over rear axle).
However, with stock manifolds and 2" tubes, might not be so bad. To keep the Mrs. happy, three chambers will give you plenty of 'deep and rumbly'.

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n2oMike
Gearhead

Posts: 1468
From: Spencer, WV
Registered: Jan 2001

posted 01-03-2002 09:57 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
You need short mufflers on a 65-66 mustang. Longer mufflers don't leave enough room for that first bend up and over the rear axle. Standard 3-chamber Flows are quite long, and won't give enough room. 3-chamber Flows specifically for a 79-93 mustang have their own part number, and are shorter than the regular models. BTW, Edelbrock makes a nice sounding muffler. I use them. I use the #5525 3" race muffler. For best fit, you'll want a side entrance and a center, or opposite side outlet.

Also HIGHLY recommended are a set of $99 Flowmaster mandrel bent tailpipes. These will be the best $99 you spend on the car. Muffler shop tailpipes get crushed and kinked all to hell making those tight bends up over the axle. The longer the muffler, the worse. Trust me, just do it!

The larger the pipe, the deeper the sound, and the more freely the exhaust flows. I'd go with 2.5" pipe. 2" will sound all crackly... not the deep sound you are looking for.

Good Luck!

------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

[This message has been edited by n2oMike (edited 01-03-2002).]

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V8 Thumper
Gearhead

Posts: 3267
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 01-03-2002 10:50 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
---------------------------------------------
Originally posted by n2oMike:

"Also HIGHLY recommended are a set of $99 Flowmaster mandrel bent tailpipes."
---------------------------------------------


You're the third guy I've heard recommend those tailpipes so highly... couldn't find 'em in the Jan./Feb. Summit bible... where'd you get 'em? Got a p/n?

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Fastback68
Gearhead

Posts: 1564
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 01-03-2002 11:12 PM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
I ordered them online from the Summit website. They're easy to find. And they arrived at my friend's house in LA within a week. Unfortunately she is now refusing to bring them to the Philippines because she says the box is bigger than she is

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V8 Thumper
Gearhead

Posts: 3267
From: Orange, Ca. United States of America
Registered: Dec 2001

posted 01-03-2002 11:26 PM     Click Here to See the Profile for V8 Thumper   Click Here to Email V8 Thumper     Edit/Delete Message   Reply w/Quote
---------------------------------------------
Originally posted by Fastback68:

"I ordered them online from the Summit website."
---------------------------------------------

Yup, found them. I need to have my eyes checked... been staring at this monitor too long

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n2oMike
Gearhead

Posts: 1468
From: Spencer, WV
Registered: Jan 2001

posted 01-03-2002 11:56 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
Summit carries a LOT more parts than what they list in their catalog. If the part is made by a manufacturer they deal with, they can get it... or chances are, they've already got it in stock!

Ya' just have to give them a call and ask.

I'd also strongly recommend a set of headers. You don't need anything special. Hedman's offer a good fit for the dollar. Headers will also "add" to the sound of the car. You might take a poll if you are interested, and see what headers people have had good luck with.

Good Luck!

------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

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johnmustang
Gearhead

Posts: 4088
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001

posted 01-04-2002 12:24 AM     Click Here to See the Profile for johnmustang   Click Here to Email johnmustang     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by n2oMike:

I'd also strongly recommend a set of headers.

Good Luck!


I would love to put a set of headers on the 65 , but , with the rules and regulations here in British Columbia , I would not be allowed to have collector plates on my car. That would increase my yearly full insurance
coverage cost from $187.00 to approximately $900.00 , and I would lose collector car status clssification. I,m really screwed up with what to do now. I still need more input, going to the longer mufflers gives me cause for concern since I am told that they are more for 79 -93 stangs. I wouldn,t mind the short 2 chambered mufflers , but , Cathy does not want the reverbiration coming back into the car. Can anybody tell me how bad the reverbiration is with the short 2 chambered flowmasters ?

JOHN

------------------
65 2+2 FASTBACK
68 COUPE
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member: Vancouver Island Mustang Association
www.vima.stangnet.com
M&M #1710
MyPhotoPage

[This message has been edited by johnmustang (edited 01-04-2002).]

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n2oMike
Gearhead

Posts: 1468
From: Spencer, WV
Registered: Jan 2001

posted 01-04-2002 07:13 AM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
It's not easy on the head. It's pretty bad. If you go with Flowmasters, you'll be ahead to go with the 3-chamber if you're worried about interior noise (drone). Flowmaster mufflers (2 and 3 chamber) for the 79-93 mustangs are both shorter than their regular units.

I'm sure you could pull off some factory HiPo manifolds. Repros are available for around $275... which is kind of expensive, but a lot better than the stockers. A lot of 351W manifolds also resemble the hipo castings. They'd be a less expensive middle ground... and should be a cheap junkyard item.

Good Luck!

------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

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Fastback68
Gearhead

Posts: 1564
From: Sucat, Paranaque, Philippines
Registered: Jul 99

posted 01-04-2002 07:50 AM     Click Here to See the Profile for Fastback68   Click Here to Email Fastback68     Edit/Delete Message   Reply w/Quote
quote:
I'm sure you could pull off some factory HiPo manifolds. Repros are available for around $275...

Yeesh! They're a nice item, but everyone I know who has them has put them on the shelf and replaced them with headers. Here's here and there's there, but if you ask around I reckon you could get some originals for $20. I know I could.
Simon

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johnmustang
Gearhead

Posts: 4088
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001

posted 01-04-2002 04:48 PM     Click Here to See the Profile for johnmustang   Click Here to Email johnmustang     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by Fastback68:
[QUOTE]I'm sure you could pull off some factory HiPo manifolds. Repros are available for around $275...


Yeesh! They're a nice item, but everyone I know who has them has put them on the shelf and replaced them with headers. Here's here and there's there, but if you ask around I reckon you could get some originals for $20. I know I could.
Simon
[/QUOTE]

Send me your address and I will send you the money for the 289 hipo manifolds , if you can get them for that price

JOHN

------------------
65 2+2 FASTBACK
68 COUPE
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member: Vancouver Island Mustang Association
www.vima.stangnet.com
M&M #1710
MyPhotoPage

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SteveLaRiviere
Administrator

Posts: 32655
From: Saco, Maine
Registered: May 99

posted 01-04-2002 06:38 PM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
John, you might want to check out Dynomax. They sound nice and mellow, and flow better than Flowmasters.

You can hear them here:
http://www.dynomax.com/sounds.stm

Also, check out this thread:
https://mustangsandmore.com/ubb/Forum12/HTML/001453.html

------------------

'70 Mustang Mach 1 M code 351C 4V/FMX/3.25 open
'72 Mustang Sprint Coupe 351C 4V/FMX/4.30 Trac Lok
'94 F-150 XL 5.8L/E4OD/3.55 Limited Slip
'97 Probe GTS 2.5L DOHC

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johnmustang
Gearhead

Posts: 4088
From: Vancouver Island , British Columbia , Canada
Registered: Nov 2001

posted 01-04-2002 07:12 PM     Click Here to See the Profile for johnmustang   Click Here to Email johnmustang     Edit/Delete Message   Reply w/Quote
Once again you have come to my rescue, with all your help , and , a bit of digging on my own I have finally decided on my set-up. Tell me what you think. Flowmasters 50 series delta flow, 3 chambers, 2 1/4 inch pipe, offset inlet , centered outlet, h-pipe, tail pipes out the back. Do you think this set-up will keep the wife happy with a deep and rumbly sound , without alot of reverberation back in the car , but , will still bark when you put your foot into it.

JOHN

------------------
65 2+2 FASTBACK
68 COUPE
87 TAURUS WAGON
98 F150 XLT TRITON V8 4.6, 4 WHEEL DRIVE
Member: Vancouver Island Mustang Association
www.vima.stangnet.com
M&M #1710
MyPhotoPage

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n2oMike
Gearhead

Posts: 1468
From: Spencer, WV
Registered: Jan 2001

posted 01-04-2002 08:24 PM     Click Here to See the Profile for n2oMike   Click Here to Email n2oMike     Edit/Delete Message   Reply w/Quote
I seriously doubt those mufflers will fit under a 65-66 mustang. Their outlets will be right at the axle housing, and the tailpipes will require on HELLISHLY kinked bend to go up over the axle tube.

I can't say it loud enough... Don't use long mufflers on a 65-66, they DON'T fit. If you must use Flowmasters, use the 79-93 5.0 mufflers. They are shorter than the universal Flows, and fit WAY better. If you are open to other brands, research the length of these mufflers, and don't exceed it.

Did you try and locate a set of 351W exhaust manifolds? Many of these are "downswept" like the 289 hipo units, and are a good CHEAP compromise.

You CAN adapt the 2.5" mandrel bent Flowmaster tailpipes.

Good Luck!

------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367

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Fastymz
Moderator

Posts: 10683
From: Reno Nv USA MEM#1240
Registered: Apr 2001

posted 01-05-2002 02:55 PM     Click Here to See the Profile for Fastymz   Click Here to Email Fastymz     Edit/Delete Message   Reply w/Quote
My three chamber flows would not fit without the turn downs.The exhuast would not fit over the rear end.
I think Mike,already said this.


SCOOP

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65 coupe,351w,RPM intake,Carter625,shorty headers,2.5 exhaust, Flowmasters,C4,open 8" 2:80,Big Boss 429 hood scoop,Crager SS,Black Suede.
MEM#1240

https://mustangsandmore.com/ubb/Fastymz.html

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