Flowmasters???

[HossDiesel]

Does anybody have a flow master ont the truck and if so what size, chamber is it? is it better than running a strait pipe?

 

[Bad340fish]

I have a 3 chamber on my truck. Its real quite at idle but you can really hear it pulling a trailer, it never gets real loud at all though. It picked up performance over the OEM muffler quite a bit. Don't know much about straight pipes really. A friend of mine bought a heavily bombed 96 that had one on it. Sounded good idleing and just cruising but get over 30PSI and really let the fuel flow and it was nasty. Sounded like a big gorrila fart lol. Didn't take him long to put a muffler on it. My . 02
Clark

 

[My 6 Eats V8's Old File]

I have a 4" 2 chamber on mine. sound is good and so is power #ad
pretty loud not bad at all.

 

[trbotrk]

HossDiesel---I have a 3. 5" race muffler on my tuuck. It seemed to make a slight difference in performance and fuel milage. I may be able to dig up the part# if you need it.

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99 2500,etc,ddx,qc,slt,ez K&N,gauges,lsd,3. 54rear,flowmaster, tow a 13k 5er.

 

[Cooker]

IMO Flowmasters have too much backpressure. At 6000 RPM's the back blows out of them. Not that we ever see that, but my friend has went through 2 on his 350 Chevy powered CJ7.

 

[Pull'nOld Iron]

What's the 3 chamber part number? If it's for a 4" pass it along please, I'm getting ready to upgrade my exhaust and would like to try one.

 

[Bad340fish]

Blows up flowmasters??? I think he has a different muffler. A buddy of mine had a 302 Powered Bronco 2 that had spark plugs in the tail pipes. If you let the motor die while you had the flames going it would go back up the pipe and blow up in the muffler. His Flowmasters were round and ballooned out... still sounded the same. I run 7000RPM on my cuda with them on no problem, I even bought mine used. I don't see how someone could blow one of those things up! Must be one hell of a motor
Clark

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Clark
1999 2500 QC SB 5spd Flowmaster 3 chamber, K&N Re-0880
1968 Barracuda Formula S Viper Blue 11. 98@112

NHRA member for life

 

[fj40charles]

I thought Flowmasters have no moving parts and does not have any baffles to blow out.

What is your friend doing with a 350 powered CJ7 turning 6000 RPM? My Toyota is a Rock crawler and never sees any RPM's over 3500.

Charles

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2000 QC 2500 4x4 LWB ETC 6 Speed Anti-Spin 3. 54 Trailer Tow, DD1's, Practical Solutions boost module
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1969 Toyota FJ40
350 TBI, Turbo 400, ARB lockers front/rear, 4 wheel power disk brakes, 4. 88 ring/pinion, 3 speed transfer case, full roll cage, Warn 8274, MRT 36 bolt beadlocks with Super Swamper Boggers (16x35x15), Saginaw Power steering, custom bumpers/fenders/nerf bars. Conquered Tellico and going to Moab this May. Loves to be pulled behind the Dodge and pass the powerjokes going up hills.

 

[PHuckleberry]

Hello from the new kid on the block. Been wondering about running flowmasters on oil burners myself,we've run them on some "warm" bigblocks (GM&Dodge)never had a problem,and they seemed to work well.

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[Todd T]

hey Adam, do you really run a chambered muff on your truck, or are you pullin someones leg?

a chambered muffler creates back pressure do you know something we dont? #ad



is that how we overcome the lag of a HX40?
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Todd,
2001 Q-cab SB 4x4 5spd 3. 55's, A pillar Boost/EGT,Jardines 4" turboback kit,custom built aluminum airbox W/K&N-RE0860 through the cowl, and more to come...

[This message has been edited by Todd T (edited 04-03-2001). ]

 

[Bad340fish]

You have to think about how big the muffler is, yes there are chambers in it. . but the space around these chambers is quite large. I have had flowmasters on everything thing I have owned they are great!! They are built of aluminized steel and welded completly. No packing inside to blow out our wear out. Your truck will sound the same 10 years from now as it does when you put them on. Just my . 02
Clark

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Clark
1999 2500 QC SB 5spd Flowmaster 3 chamber, K&N Re-0880
1968 Barracuda Formula S Viper Blue 11. 98@112

NHRA member for life

 

[Cooker]

My buddies CJ see all sort of use, running on the sand dunes, sand drags, muddin', some rock crawling, and weekend fun on the streets cruising around town.

As far as HP goes, he has never had her on the dyno, but with all the work done to it he's guessing ~400. It certainly is a screamer. In fact, it is the same motor than ran in a differnt Jeep that took 2nd at the National Sand drags in Vegas in '99.

I don't know the exact series he is running, but yes it is a chambered muffler, no packing inside. I was with him one day when one blew up. What happens, I think, is the "fins" inside are broken somehow (bent, flatened, or something) The case itself doesn't look different, but the muffler sure sound like sh*t after it blows up. A noticable difference as the Jeep runs duals, one still had the nice Flowmaster sound, the other junk, and replacing only the muffler got rid of the shi**y sound.

Ryan

 

[Bad340fish]

Hmmm he backfire or anything like that?? I do believe they carry a lifetime warranty on stuff like that, I think. . don't quote me on that.
Clark

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Clark
1999 2500 QC SB 5spd Flowmaster 3 chamber, K&N Re-0880
1968 Barracuda Formula S Viper Blue 11. 98@112

NHRA member for life

 

[HossDiesel]

Bad340, I was wondering what size the tail pipe is and how big should i get the flow? 3in chambers? or 3in 2 chamber? i had 3 chambers on my old 83 ford with a 351 in it and they wasnt very loud, really deep toned, i like them but i heard a 2000 with a 2 chamber on it and it sound mean, liked it to.

 

[Bad340fish]

Mines a 3" 3 chamber. I bought it used off of a 95 chevy truck, Mine is not Center in Center out, that would be best. The muffler shop guy whined about it for a second till I told him the shop down the street would do it lol. Good luck
Clark

 

[HossDiesel]

Thanks clark, by the way, is it hard to install a pillermount and autometer boost and egt gauge?

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99 quad cab 4x4 5spd 355 gears sandstone color waiting to bomb

 

[My 6 Eats V8's Old File]

I'm not sure if you were talking to me about the chamber muffler part but its not a secret and acctually my cousins husband works at flowmaster in r&d and has told me that there chamber mufflers have not worked all that great on turbo'd vehicles, he said they had to redesign the buick g/n system dew to lost power and said there might be something to be gained by going to a straight threw type muffler of their chambered but also said they now are offering a dogde diesel kit.

 

[Bad340fish]

Hoss, I wouldn't know lol. . Haven't put one on yet
Clark

 

[Todd T]

thats more like it we have landed back on earth. #ad
I too have had flowmasters on every vehicle mustangs,Impalla SS,several trucks including my big block ford dually, and I am familiar with how they work.
that is why I was suprised to see that my6 eats v8's (Adam) was running one on his power house. I would have thought he would have known, it was robbing him of power but he was running it becuase he knew something we didnt.

I guess the tables are turned this time. #ad


no restriction is the only answer for a turbine driven engine the backpressure of a flowmaster or any (chambered)muffler is designed to send a shockwave back up against the exhaust port before it closes fully, to create a invisible wall, for the incoming intake charge to hit and not allow it to escape while the valve is still open. the result is more intake charge in the cylinder and we all know what that creates. #ad


with a turbine driven system the turbo has to spool up to create boost, if it cant get the exhaust out it cant spool up as fast. I thought Adam was useing this to his advantage to some how overcome the lag of the HX40 but now that I think about it more that wouldnt work anyway. #ad
it would just increase the lag

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Todd,
2001 Q-cab SB 4x4 5spd 3. 55's, A pillar Boost/EGT,Jardines 4" turboback kit,custom built aluminum airbox W/K&N-RE0860 through the cowl, and more to come...

[This message has been edited by Todd T (edited 04-04-2001). ]

 

[HossDiesel]

So Todd, are you saying dont put a flow on my cummings? i thought that they where "back pressure busters" is this not true? what is this Jardines exhaust? is it any good? and what do it cost?