 Muffler suggestions for JLO's V8, Want quiter...low resonance |
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| nine14cats |
 Jul 5 2005, 05:51 PM
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#1
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Bill Pickering -- 914-6 GT aka....Leeloo  Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None  |
My RH kit for JLO has Flowmaster 40's. Brand new in a box. I've had flowmasters on other cars including my suburban and I don't like the resonance. I want a deep mellow sound for my hot rod.
RH says Magnaflow or Borla's are nice and don't have the harmonic distortion in the car. Anyone care to weigh in on opinions? SBC 350 with RH headers. Thanks, Bill P. |
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| Dominic |
Jul 5 2005, 06:03 PM
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#2
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Dominic Group: Members Posts: 992 Joined: 14-January 03 From: Vacaville, CA Member No.: 149 Region Association: Northern California |
I have a stainless steel Borla muffler on my daily driver VW Scirocco and it sounds great, but not too loud. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) My $.02
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| 914GT |
Jul 5 2005, 06:05 PM
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#3
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Senior Member Group: Members Posts: 1,100 Joined: 11-October 04 From: Tucson Member No.: 2,923 Region Association: Southwest Region |
I'm happy with Magnaflows. Mellow sound at idle, no resonances, yet sounds aggressive when time to show off. Use these with wrapped headers, about all you hear cruising highway is wind noise.
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| bondo |
Jul 5 2005, 06:13 PM
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#4
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
Skline has a single 2 in 2 out muffler on his chalon. I have yet to hear it, but I really would like to someday, as I would like to do something similar.
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| nine14cats |
Jul 5 2005, 06:15 PM
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#5
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
Hello Guy and Dominic,
Glad to hear of the good sounds (experiences)... You guys have any part numbers? Thanks! Bill P. |
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| Joe Bob |
Jul 5 2005, 06:16 PM
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#6
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Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
For a V8 car....I would use twin Supertrapps...I have a set of the five inch (wide) in Stainless Steel for sale in the classifieds. I took then off my dual outlet 3.6. The were after twin sport cats....no drone and a pleasant sound.
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| nine14cats |
Jul 5 2005, 06:16 PM
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#7
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
I've heard that taking the two muffler outs and tying them together then back out with two also cancels noise and doesn't hurt performance too much.
Is this true? Thanks, Bill P. |
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| Joe Bob |
Jul 5 2005, 06:17 PM
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#8
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Retired admin, banned a few times Group: Members Posts: 17,427 Joined: 24-December 02 From: Boulder CO Member No.: 5 Region Association: None |
Yeah a cross over is gud....cuts down on rumble/back fire on decel.
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| d914 |
Jul 5 2005, 06:22 PM
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#9
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Advanced Member Group: Members Posts: 2,331 Joined: 12-July 03 From: Atlanta, ga Member No.: 904 Region Association: South East States |
try the three chamber flow masters, the ones you hear under acceleration,but quiet at other times, 70 series???
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| bondo |
Jul 5 2005, 06:24 PM
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#10
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
I've been told that a crossover before the mufflers is good. Supposedly after the mufflers it's less beneficial. There just isn't room to put it before the mufflers in a 914. That's part of why I want to use a 2 in 2 out muff... having the crossover in the muffler is closer to before the muffler than after the muffler is. (wow, that's a mouthful)
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| 914GT |
Jul 5 2005, 06:30 PM
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#11
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Senior Member Group: Members Posts: 1,100 Joined: 11-October 04 From: Tucson Member No.: 2,923 Region Association: Southwest Region |
I believe mine are P/N 13235, oval 3-chamber offset/offset 2.25". 14" long. |
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| Trekkor |
Jul 5 2005, 06:31 PM
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#12
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I do things... Group: Members Posts: 7,809 Joined: 2-December 03 From: Napa, Ca Member No.: 1,413 Region Association: Northern California |
Oh, but there is... Sounds great, too. (IMG:http://www.914world.com/bbs2/html/emoticons/wub.gif) KT Attached image(s) 
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| bondo |
Jul 5 2005, 06:36 PM
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#13
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
Ooh, that's clever! |
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| Dr. Roger |
Jul 5 2005, 07:10 PM
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#14
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A bat out of hell. Group: Members Posts: 3,944 Joined: 31-January 05 From: Hercules, California Member No.: 3,533 Region Association: Northern California |
As soon as I get my motor fired up and installed i'm going to attempt using two Corvette mufflers. I might have to shorten them but the price is right.....
Craigslist. $30 bucks...... =-) http://b.im.craigslist.org/Cq/sd/RJdXPetHV...mLAjWYxe4V1.jpg (IMG:http://b.im.craigslist.org/Cq/sd/RJdXPetHVruKsavMhmLAjWYxe4V1.jpg) |
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| BIGKAT_83 |
Jul 5 2005, 07:17 PM
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#15
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Senior Member Group: Members Posts: 1,798 Joined: 25-January 03 From: Way down south Bogart,GA Member No.: 194 Region Association: South East States 
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I've had 4 different types of mufflers on my 914 V8. I had the Flowmaster 40's on there for less than a 1/2 mile and pulled them off and gave them away.
The Magnaflows are the best by far! Bob (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) |
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| sean_v8_914 |
Jul 5 2005, 08:12 PM
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#16
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Chingon 601 Group: Members Posts: 4,011 Joined: 1-February 05 From: San Diego Member No.: 3,541 |
fdgr
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| Randal |
Jul 5 2005, 08:35 PM
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#17
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
I really like my Flowmaster 50, but won't be able to tell how much power it costs until we dyno the new engine, i.e., we'll be taking a 40 to the dyno room..
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| rhodyguy |
Jul 5 2005, 09:17 PM
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#18
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,080 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Edelbrock had a big display trailer at the races last weekend. they seem to have a large selection of new design mufflers. might be worth a look.
k |
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| J P Stein |
Jul 5 2005, 10:08 PM
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#19
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Dude, it's a Chebbie...Glass Pacs. (IMG:http://www.914world.com/bbs2/html/emoticons/biggrin.gif)
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| nine14cats |
Jul 5 2005, 11:52 PM
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#20
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Bill Pickering -- 914-6 GT aka....Leeloo Group: Members Posts: 2,618 Joined: 10-February 03 From: Campbell, CA Member No.: 287 Region Association: None |
Thanks everyone for the tips. I'll do my homework on the options and report back.
JP....I had glasspacks on my '65 Barracuda fastback with a 273 V8. That thing sounded great! (In 1976!) Bill P. |
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