Amuse Titanium Exhaust question!
Apr 20, 2005, 10:00 PM
#16
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Originally Posted by JB1
Do you think the Greddy Ti is comparable to the Amuse exhaust?
I was going to order one of the Amuse exhausts for my Evo but called BP and asked about the tip getting past the bumper. They said that the Amuse would end a little short of the bumper (same as my Greddy).
I machined a spacer for my exhaust that moved the rear section back about .800" and it eliminated all of the soot on the bumper and looks better.
Good luck,
Oh yeah the Amuse I had on the RSX took 8 weeks to arrive!
Apr 21, 2005, 12:08 PM
#20
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Originally Posted by Tsurara
Tell me about it, my Kakimoto is taking 10 weeks 
Apr 21, 2005, 01:23 PM
#21
Originally Posted by Knyght
Stainless steel doesn't rust, hence stainless..
Titanium is more likely to oxidize
Titanium is more likely to oxidize
titanium's oxidation requires higher temperatures not found in most environments, but IS found in most WELDING environments, so you gotta watch out when you weld... but a hung of ti will get a misty white on top at MOST! especially since right after it gets oxidized on its top layer the bottom layers should be very well protected, just like aluminum... although aluminum is more pronounced.
and i'd like to know why the greddy ti is a piece of crap... the overall design looks the same as most "great" designs (iunno why everyone looks at an exhaust and then claims it's great). i do admit that the greddy is not one mandrel bent piece and the welds are a little questionable for the pipings (they're smoothed out) but how is it a good thing to have hacked up pieces welded together... the more welds you have the more you have to try and smooth them on the inside and the more chances you have of not really making it smooth... i think people just like that hacked up welded look... i'd prefer mandrel bent.
Last edited by trinydex; Apr 21, 2005 at 01:31 PM.
Apr 22, 2005, 12:59 AM
#22
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I really like the new HKS Ti SpecR, especially the Type-A “Race Only” version:
http://www.hks-power.co.jp/products/...ecr/specr.html
Never heard of anybody that actually used it but they sure look nice and HKS should have a good quality as usual.
http://www.hks-power.co.jp/products/...ecr/specr.html
Never heard of anybody that actually used it but they sure look nice and HKS should have a good quality as usual.
Apr 22, 2005, 03:47 AM
#23
i looked into it, asked my friend who works at hks why they hadn't brought it over. apparently it doesn't fit the usdm evo 8. for one it doens't have the midpipe bung. iunno... but it is nice. super super nice design, also it's like. 209348209384 dollars.
Last edited by trinydex; Apr 22, 2005 at 03:52 AM.
Apr 22, 2005, 04:22 AM
#24
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Originally Posted by trinydex
this is incorrect... first off... oxidation IS rust... stainless steal is resiliant to rust... you throw it in the ocean... and wait a few days... you'll pull out some rust. the oxidation of any type of steel is such that the temperatures in normal envirionments combined with the particulates in most environments is enough to oxidize (burn, yes that's what rust is... the very slow burning of metal).
titanium's oxidation requires higher temperatures not found in most environments, but IS found in most WELDING environments, so you gotta watch out when you weld... but a hung of ti will get a misty white on top at MOST! especially since right after it gets oxidized on its top layer the bottom layers should be very well protected, just like aluminum... although aluminum is more pronounced.
and i'd like to know why the greddy ti is a piece of crap... the overall design looks the same as most "great" designs (iunno why everyone looks at an exhaust and then claims it's great). i do admit that the greddy is not one mandrel bent piece and the welds are a little questionable for the pipings (they're smoothed out) but how is it a good thing to have hacked up pieces welded together... the more welds you have the more you have to try and smooth them on the inside and the more chances you have of not really making it smooth... i think people just like that hacked up welded look... i'd prefer mandrel bent.
titanium's oxidation requires higher temperatures not found in most environments, but IS found in most WELDING environments, so you gotta watch out when you weld... but a hung of ti will get a misty white on top at MOST! especially since right after it gets oxidized on its top layer the bottom layers should be very well protected, just like aluminum... although aluminum is more pronounced.
and i'd like to know why the greddy ti is a piece of crap... the overall design looks the same as most "great" designs (iunno why everyone looks at an exhaust and then claims it's great). i do admit that the greddy is not one mandrel bent piece and the welds are a little questionable for the pipings (they're smoothed out) but how is it a good thing to have hacked up pieces welded together... the more welds you have the more you have to try and smooth them on the inside and the more chances you have of not really making it smooth... i think people just like that hacked up welded look... i'd prefer mandrel bent.
Meanwhile in the welding department, the REAL reason you want the less welds as possible is because the more you weld the weaker the structure. Less welds = stronger piece. Welding creates inconsistancies within the metal. Not only that but most welds(steel) will rust faster since the metals used for bonding are not typically resiliant. Thus mandrel bending offers a stronger exhaust when compared to hacked/welded.
Apr 22, 2005, 04:54 AM
#25
i am a science major ....
btw they make boats out of... GASP stainless steel
http://dictionary.reference.com/search?q=rust
http://dictionary.reference.com/search?q=oxidation
forming of oxides = rust oxidation = forming of oxides... you had access to the information materials....
for more information... if you know the chemical formula for combustion or burning, you'll see that it forms oxides i.e. carbon dioxide formed from burning fuel, once again... forming of oxides = burning forming of oxides = rust.
my reference to welding... welding ti requires shielding gases because at welding temperatures ti oxides form very readiliy... hence making brittle welds if the welded materials aren't shielded properly. i was not referencing how ti welds are weak... because if done correctly... they are not.
in the exhaust dept... welding is perfectly strong enough for exhausts... because unlike boats that are made of steel that actually go in seawater... there isn't typically anything that an exhaust does that exeeds it's strength demands when components of the exhaust are welded, in fact... they're strong enough that MANY shops that don't have access to expensive mandrel bending equipt, particularly for ti, cut nad weld bends because that's a better alternative to press bending.
now... the problem with making bends like this is that you can only gind down SOME of the internal weld beads and most people won't even go through the trouble of THAT. so... you get these weld beads on the inside of the pipe where all the gases flow through. beads in a pipe will pose restriction... restriction and flow are not happily in the same sentence together when you're talking about cars.
btw they make boats out of... GASP stainless steel
http://dictionary.reference.com/search?q=rust
http://dictionary.reference.com/search?q=oxidation
forming of oxides = rust oxidation = forming of oxides... you had access to the information materials....
for more information... if you know the chemical formula for combustion or burning, you'll see that it forms oxides i.e. carbon dioxide formed from burning fuel, once again... forming of oxides = burning forming of oxides = rust.
my reference to welding... welding ti requires shielding gases because at welding temperatures ti oxides form very readiliy... hence making brittle welds if the welded materials aren't shielded properly. i was not referencing how ti welds are weak... because if done correctly... they are not.
in the exhaust dept... welding is perfectly strong enough for exhausts... because unlike boats that are made of steel that actually go in seawater... there isn't typically anything that an exhaust does that exeeds it's strength demands when components of the exhaust are welded, in fact... they're strong enough that MANY shops that don't have access to expensive mandrel bending equipt, particularly for ti, cut nad weld bends because that's a better alternative to press bending.
now... the problem with making bends like this is that you can only gind down SOME of the internal weld beads and most people won't even go through the trouble of THAT. so... you get these weld beads on the inside of the pipe where all the gases flow through. beads in a pipe will pose restriction... restriction and flow are not happily in the same sentence together when you're talking about cars.
Last edited by trinydex; Apr 22, 2005 at 05:11 AM.
Apr 22, 2005, 05:34 AM
#26
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Well congrats on the science major, you know more about rust, but one question, every one of your posts are edited.. I wonder why, sounds to me you are looking stuff up and you dont actually know, but thats just speculation.
People dont care if rust is actually an oxide. People see rust as rust, and oxidation as oxidation. Dont try to confuse the majority just for your own benefit of saving face.
People SS doesn't rust, Titanium oxidizes. Thats not fact, it's just what happens in the automotive industry.
Shielded gas metal arc welding is great for creating nice looking welds. The problem is that the metal you are welding onto changes it's molecular structure and is therefor weaker. See I'm a welder, and I know this. The gas used in shielding typically Argon does a good job keeping the welds from oxidizing before the metal has a chance to bond. The problem is the filler metal will oxized(rust) faster than the metal pipe will.
Welded v/s mandrel in accordinance with flow and restriction is that a welded pipe on a 30 degree angle disrupts flow due to the extreme change in direction. Mandrel is far superior because even though the entire angle might be 30 degree, its actually a bunch of small angles added to form 30. Therefor less of a dramatic change in direction.
People dont care if rust is actually an oxide. People see rust as rust, and oxidation as oxidation. Dont try to confuse the majority just for your own benefit of saving face.
People SS doesn't rust, Titanium oxidizes. Thats not fact, it's just what happens in the automotive industry.
Shielded gas metal arc welding is great for creating nice looking welds. The problem is that the metal you are welding onto changes it's molecular structure and is therefor weaker. See I'm a welder, and I know this. The gas used in shielding typically Argon does a good job keeping the welds from oxidizing before the metal has a chance to bond. The problem is the filler metal will oxized(rust) faster than the metal pipe will.
Welded v/s mandrel in accordinance with flow and restriction is that a welded pipe on a 30 degree angle disrupts flow due to the extreme change in direction. Mandrel is far superior because even though the entire angle might be 30 degree, its actually a bunch of small angles added to form 30. Therefor less of a dramatic change in direction.
for everyone
Apr 22, 2005, 06:56 AM
#29
If you're really serious about Amuse exhaust it will cost you!
I do have the R1 Titan, I have realised many super cars slowing down when I'm coming from few blocks away
Amuse > other exhausts (HKS, Blitz, Greddy etc...)
Amuse = LOUD LOUD LOUD (this is under 3000rpm)
At full throttle 3000rpm+ =
This exhaust is not cop friendly especially at full throttle, I got pulled over once just because I passed an a$$hole cop from the right. I think his car shaked a little bit and he started to follow me and asked me to pull over and gave me 3 tickets.
a friend with connections took care of this bastard cop and his tickets and I was free 
My max speed is usually around 30 ~ 45mph inside the city and everything has been fine lately.
Just make sure you don't floor it, cause you'll draw everyone's attention and donut eaters might just come out of nowhere
Exhaust mod:
R1 Titan
RMR 3" T.pipe
RMR 3" Downpipe
Expecting O2 housing by next month
I do have the R1 Titan, I have realised many super cars slowing down when I'm coming from few blocks away
Amuse > other exhausts (HKS, Blitz, Greddy etc...)
Amuse = LOUD LOUD LOUD (this is under 3000rpm)
At full throttle 3000rpm+ =
This exhaust is not cop friendly especially at full throttle, I got pulled over once just because I passed an a$$hole cop from the right. I think his car shaked a little bit and he started to follow me and asked me to pull over and gave me 3 tickets.
a friend with connections took care of this bastard cop and his tickets and I was free My max speed is usually around 30 ~ 45mph inside the city and everything has been fine lately.
Just make sure you don't floor it, cause you'll draw everyone's attention and donut eaters might just come out of nowhere
Exhaust mod:
R1 Titan
RMR 3" T.pipe
RMR 3" Downpipe
Expecting O2 housing by next month
