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yanna
P Plater
43 Posts
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 Posted - 14 Nov 2006 : 2:44:46 PM
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Hey can anyone help me, i want extractors and a good exhaust system for my vn but dont know which ones to buy im going for more power so what brand is the best to get and what is the best exhaust system to buy?
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Everyone is gifted. Some open the package sooner. |
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MILD50
Fully Licenced
850 Posts
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Posted - 18 Nov 2006 : 1:48:47 PM
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What engine have you got and what other mods?
I've got Genie Tri - Y's on my Calais (not sure of diameter) with a two and a half inch system with high flow cat and high flow muffler. Sounds tough but doesn't drone- other mods are some head work, stage II Crow Cam, Yella Terra roller rockers and Starr Performance manifold with 90mm throttle body. It'll be a 383 when it needs a rebuild with a bigger cam.
My only complaint is that they have lost their protective coating over 12months- I know of 2 year old Pacemakers that still look like new! Also, expect underbonnet temps to rise so if you are still running a naked pod (tut tut if you are!) you are going to increase the temp of the air it sucks aswell as probably melt anything near them. I recommend the Jet Hot or ceramic type coatings- added protection, look boss and keep things cool. I personally wouldn't bother with the thermal wraps as they can damage the welds.
Really comes down to budget and what you want to get out of the new system. |
Edited by - MILD50 on 18 Nov 2006 1:49:58 PM |
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yanna
P Plater
43 Posts
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Posted - 18 Nov 2006 : 8:21:20 PM
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| I have the stock v6, with a c.a.i and a k/n performance filter i dont want noise just better performance i want to get the maximum out of the buick 6. |
Everyone is gifted. Some open the package sooner. |
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MILD50
Fully Licenced
850 Posts
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Posted - 18 Nov 2006 : 10:58:38 PM
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Mouce would be the man to ask regarding the six- a high quality 2 1/4 system off extractors would probably do the trick unless you've got other mods planned.
Just a tip for young players- I think Wild Cat are made by Genie... just a bit less expensive. |
Edited by - MILD50 on 18 Nov 2006 11:00:42 PM |
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mouce
National Driver
1525 Posts
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Posted - 21 Nov 2006 : 10:08:54 AM
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Not 100% sure on which headers are the 'best'. But I've never heard anyone say a bad thing about pacemakers.
As for the pipes, full length 2.5" set of pipes with mandrel bends. Hi-flow cat (yes, you need a cat), a nice hot-dog muffler on the rear, and you can take your pick of the front-muffler. Just make sure that it's EPA legal.
You'll end up with more noise, it's part of what goes with a new set of pipes. UNLESS you wanna spend massive amount of dollars, going for a larger diameter will give you more noise. It shouldn't drone, but it will be a little louder.
Being 2.5" will give you a noticeable kick in the pants, when it's combined with a CAI and good quality panel filter.
Also @Mild50: I'm pretty sure you're dead right with the Wild Cat/Genie connection. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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MILD50
Fully Licenced
850 Posts
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Posted - 21 Nov 2006 : 11:09:52 AM
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| Pretty sure the only difference is mandrel bends aren't available with the Wild Cats. |
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mouce
National Driver
1525 Posts
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Posted - 21 Nov 2006 : 6:58:04 PM
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| If you want the best power you can, you'll want the mandrel bend system. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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yanna
P Plater
43 Posts
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Posted - 22 Nov 2006 : 7:30:56 PM
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| Thanks for that guys you have been a big help, by the way what are mandrel bends whats the difference with them? |
Everyone is gifted. Some open the package sooner. |
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MILD50
Fully Licenced
850 Posts
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Posted - 22 Nov 2006 : 8:28:50 PM
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Mandrel bends are so much smoother and as a result offer less restriction. The old way of doing things was to clamp the metal and is closes the inner diameter in somewhat.
Basically- less restriction. Wouldn't notice it outside of really close bracket racing but I guess every little bit helps if you can afford it. I'd love to hear from anyone thinking they can tell a 1kw difference in power at the flywheel... |
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mouce
National Driver
1525 Posts
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Posted - 22 Nov 2006 : 9:45:32 PM
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For a hands on example of why mandrel bends are a bit nicer, get you hands on a garden hose. Place your hands about 8" apart and make a bend that's about 90 degrees. See how the hose sort of crimps a bit, it restricts the flow of the water in it a bit.
The idea behind the mandrel bend is to prevent it crimping while you bend it. It's harder to demonstrate this (unless you happen to be a plumber). It keeps the inside diameter of the pipe the same throughout the entire bent section.
MILD50 is right on the money though, being able to tell the difference between mandrel bends and standard bends is almost impossible from the drivers seat. But the mandrel bends will ensure that you're getting the BEST you can out of your exhaust system. |
Bite off more than you can chew, and chew like hell - Peter Brock (1945-2006) |
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