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Y-pipe w/ catback styl exh, or duals with round tube mufflers, what do you think
i have a 87 camaro that has the typical y-pipe and cat-back exhaust and that is fine for the wimpy 305 4brl in it now but i have a 385ci that i will be putting in it sooner than later, ive heard some say a Y-pipe into a 3"cat back system (without the cat), but i just can t see running this, a Y-PIPE
i just cant do it, and most all shops in my area wont mess with a custom (illegal) exhaust, even if paid to with no paper work, so i know i want long tube headers, and round mufflers, here is what i have come up with so far http://store.summitracing.com/partde...5&autoview=sku http://store.summitracing.com/partde...5&autoview=sku http://store.summitracing.com/partde...5&autoview=sku http://store.summitracing.com/partde...5&autoview=sku in a nut shell headman elite long tube headers w/3" collector, 12" collector extensions, 3"- 2.5" reducer, 12x4" moroso 2.5 in/out round tube mufflers, and then just a set of turndowns what do you think of this exhaust system |
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If not, true duals, as you propose, would be the way to go with or without cats. Add a crossover pipe, it lets each side share the other, that is really helpful for flow. Doesn't so much matter whether an H or X pipe, just that it's there. Be careful of ending the pipes anywhere besides under and slightly behind the rear bumper. There is a low pressure area that is always behind the forward moving car, it gets bigger with more speed and smaller with less. It is useful to use as a scavenge technique as it puts the tail pipes under a bit of suction. Dumping anyplace else requires knowing the airflow in that area, it's possible with side or under dumps to actually have a local air flow trying to pressurize the end of the pipes restricting their flow instead of helping it. Bogie |
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i dont really care about qualifing for smog, i live in MD, you only have one state inspection for as long as you own the car, and i have owned the car for about 8yrs, it was tagged for 6, i have had it in my gargae for about 2yrs now only taking it out from time to time to get the fluids going and to keep the car from rotting, i should be able to get the car re-tagged once done with no inspection, i cant remember how old the car need to be for historic tags or hotrod tag, 20-25yrs not sure which one for maryland
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Bogie |
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Bogie |
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im not that old but i have never owned anything but V8's 1984 Blazer 350 1972 nova 350 1987 camaro 305 2002 gmc 3/4THD 4x4 364 the only way i will ever own an electric car is if they do away with gasoline motors all together, and even then i will still have atleast one gasoline V8 powered vehicle (atleast 1!) but my wife may drive some new what ever |
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My daily driver is a 350 powered S-15, a wolf in sheeps clothing. The 350 is a Franken-mouse built using a Vortec block and extremely modifed LT1 aluminum heads that are converted back to conventional coolant flow. There's a ton of other mods to get a conventional distributor and a hacked up TPI injection system running off an old batch fire computer, and fastened to a GMPP LT1 4 barrel conversion intake, . Uses an LT4 HOT cam and Miller roller rockers. And it SMOGs, which it has to where I live, but it ain't technically legal, but so far the state hasn't bugged me about the configuration. They sniff it and send me away happy. I have this noise thing even between my Harley and my Yamaha. Starting the old Hog is like bringing life to a wild animal. Begins with the electric starter which usually doesn't last enough to light it off so that ends with the kick starter and some sweat. The Yamaha in spite of having some healthy pipes on it, is like starting the vacuum cleaner. Pull a little choke, turn the key, hit the start button, a quick humm from the starter and it's going. Nice bike but no soul. All right I'm outta here. Bogie |
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