Acurazine's first True Dual Exhaust on the 3G TL - (Updated Vids-Pg. 4)
08-17-2011, 07:23 PM
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Acurazine's first True Dual Exhaust on the 3G TL - (Updated Vids-Pg. 4)
First things first:
I would like to thank Inaccurate/IHC/Opel/Sonnick/phee/04accrdcpe for all the help provided through my old thread and thro PM's and phone conversations....
MODS: if you can please include this in my main post...I was so
that i forgot to thank all of them LOL 
I would like to thank Inaccurate/IHC/Opel/Sonnick/phee/04accrdcpe for all the help provided through my old thread and thro PM's and phone conversations....
MODS: if you can please include this in my main post...I was so
that i forgot to thank all of them LOL So after 2 years of researching and finding the right shop in Kansas to do my exhaust I finally got it done....
It did end up costing me quite a chunk of $$$ but the craftsmanship is unbelievable.....its amazing....
Initial (cold start) impressions:
ohh its loud....its a tad bit louder than the exhaust out there....has a very exotic tone at certain rpm's and does have its share of rasp and drone....
The upsides: Car is so much quicker thro the rpms....its not even funny....
The Down: Since this job was done in a hurry (gotta leave for Austin in the next few minutes here) he could align the tips too well....so the tips are not really filling up the type-S rear lip i got....When I get back this sunday, will take it back to him and get it straightened out....
Video's....in due time....
I wanted to leave the design to myself, but I have learned so much from this forum, it can only help by giving something back....
its a 2.25" True dual....T304 SS tubing....Mandrel Bents...It does NOT have a H pipe....I picked up a Magnaflow muffler 2.25 x 2 in/out which has a true perforated X core which am using to shut the rasp and as a merge.....
Tips are from Jones Exhaust
Mufflers are 2 x 12215
Muffler/Resonator/Xpipe is 11385
I need some opinions from people here:
1> Pros/Cons of the primary pipes not being of equal length
2> Any way in this other than welding 2 resonators to shut the drone up and make it a little quieter (still debating as I know once the carbon builds up the exhaust will quite down a little)...
On to the pix....Vids after Sunday
Last edited by Bearcat94; 08-18-2011 at 11:45 PM.
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08-17-2011, 08:38 PM
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Swoosh-congrats buddy. When you left my house this afternoon, I couldn't wait to see the pictures of your new setup.
I'm anxious to see more pictures and videos. Can't wait to see the tips too.
I'm anxious to see more pictures and videos. Can't wait to see the tips too.
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08-18-2011, 06:53 AM
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Checking in from Austin....will put detailed reply to all from my lappy....
Quick update from my phone....
No drone at 70mph+ with a little tab on the gas....has some rasp at high rpms....
The pipes are going to RV6 PCD V2...
Quick update from my phone....
No drone at 70mph+ with a little tab on the gas....has some rasp at high rpms....
The pipes are going to RV6 PCD V2...
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08-18-2011, 09:20 AM
#24
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^
Looks really clean.
Looks really clean.
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08-18-2011, 09:43 AM
#27
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WOW Swoosh. That looks great! It really looks like all the waiting paid off for sure! (No pun intended 
)
The quality looks amazing as you said, the welds look great, and nice choice on the X pipe chamber
I do have 1 question. How come you went with a 2.25" in and 2" out?
You may be able to go with a Magnaflow 11378 to help get rid of some of the drone/rasp, but I'm not sure how far each pipe is from each other. You would have to see and then call Magnaflow to ask if it'd fit. I'm not sure if a 4in round resonator would be able to fit 'between the pipes' if you know what I mean. Maybe if you got 2 really small ones (12-14in or so) you'd be able to fit one after the other (on opposite sides), but they may come VERY close to each other.
)The quality looks amazing as you said, the welds look great, and nice choice on the X pipe chamber
I do have 1 question. How come you went with a 2.25" in and 2" out?
You may be able to go with a Magnaflow 11378 to help get rid of some of the drone/rasp, but I'm not sure how far each pipe is from each other. You would have to see and then call Magnaflow to ask if it'd fit. I'm not sure if a 4in round resonator would be able to fit 'between the pipes' if you know what I mean. Maybe if you got 2 really small ones (12-14in or so) you'd be able to fit one after the other (on opposite sides), but they may come VERY close to each other.
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08-18-2011, 09:54 AM
#28
WOW Swoosh. That looks great! It really looks like all the waiting paid off for sure! (No pun intended )
The quality looks amazing as you said, the welds look great, and nice choice on the X pipe chamber
I do have 1 question. How come you went with a 2.25" in and 2" out?
You may be able to go with a Magnaflow 11378 to help get rid of some of the drone/rasp, but I'm not sure how far each pipe is from each other. You would have to see and then call Magnaflow to ask if it'd fit. I'm not sure if a 4in round resonator would be able to fit 'between the pipes' if you know what I mean. Maybe if you got 2 really small ones (12-14in or so) you'd be able to fit one after the other (on opposite sides), but they may come VERY close to each other.
)The quality looks amazing as you said, the welds look great, and nice choice on the X pipe chamber
I do have 1 question. How come you went with a 2.25" in and 2" out?
You may be able to go with a Magnaflow 11378 to help get rid of some of the drone/rasp, but I'm not sure how far each pipe is from each other. You would have to see and then call Magnaflow to ask if it'd fit. I'm not sure if a 4in round resonator would be able to fit 'between the pipes' if you know what I mean. Maybe if you got 2 really small ones (12-14in or so) you'd be able to fit one after the other (on opposite sides), but they may come VERY close to each other.
usually the drop down is within the downpipe/jpipe/whatever they call it on different vehicles, and you never actually see it.
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08-18-2011, 10:53 AM
#29
All motor
^ I disagree. It's said that anything after the header collector is a restriction. Most high performance header primaries are "stepped," starting smaller near the head and gradually tapering to larger; then at the collector, necking down small and tapering to a larger diameter (at a larger angle/shorter distance than the primaries). Open collector makes the most power, leaving nothing no speculation as to whether or not everything downstream from the collector is a restriction.
However, I do agree with you that velocity is extremely important when talking about exhaust flow.
It's difficult to find the correct velocity/volume combination, but when you do, a lot of power can be made.
I honestly don't think it would've made a big difference whether he went with 2 or 2.25, slight if anything. I was just wondering why.
However, I do agree with you that velocity is extremely important when talking about exhaust flow.
It's difficult to find the correct velocity/volume combination, but when you do, a lot of power can be made.I honestly don't think it would've made a big difference whether he went with 2 or 2.25, slight if anything. I was just wondering why.
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08-18-2011, 10:56 AM
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Sexy. Can't wait for audio clips and videos. Good job and nice dedication. 
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08-18-2011, 11:11 AM
#32
^ I disagree. It's said that anything after the header collector is a restriction. Most high performance header primaries are "stepped," starting smaller near the head and gradually tapering to larger; then at the collector, necking down small and tapering to a larger diameter (at a larger angle/shorter distance than the primaries). Open collector makes the most power, leaving nothing no speculation as to whether or not everything downstream from the collector is a restriction.
However, I do agree with you that velocity is extremely important when talking about exhaust flow. It's difficult to find the correct velocity/volume combination, but when you do, a lot of power can be made.
I honestly don't think it would've made a big difference whether he went with 2 or 2.25, slight if anything. I was just wondering why.
However, I do agree with you that velocity is extremely important when talking about exhaust flow.
It's difficult to find the correct velocity/volume combination, but when you do, a lot of power can be made.I honestly don't think it would've made a big difference whether he went with 2 or 2.25, slight if anything. I was just wondering why.
but, it's hard for me to agree with that completely. bigger is only better if you want peak gains(or are talking post turbo exhaust size), and quite a bit of people don't look into the overall net changes. i would take an avg of +5 hp all over, compared to a +15 hp * 6750 rpm. ya know? something rarely seen in conversationgs. just a random example there fyi, since i'm not well versed in TL mods yet.
anyway, area under the curve FTW. but you are right and it probably isn't even a visual difference on a dyno.
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08-18-2011, 04:46 PM
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First things first:
I would like to thank Inaccurate/IHC/Opel/Sonnick/phee/04accrdcpe for all the help provided through my old thread and thro PM's and phone conversations....
MODS: if you can please include this in my main post...I was so that i forgot to thank all of them LOL
I would like to thank Inaccurate/IHC/Opel/Sonnick/phee/04accrdcpe for all the help provided through my old thread and thro PM's and phone conversations....
MODS: if you can please include this in my main post...I was so
that i forgot to thank all of them LOL
08-18-2011, 05:14 PM
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sorry for delayed response...
It actually ran over my budget by $500...it was OTD with taxes (and in KS you pay taxes on labor as well) for $1800....i thought that was wayyy too much but the guy told me if you needed anything else done, he wont charge me....so i thought ahh what the hell...
fully bolted on....
+ ported and polished manifold/runners/mdx spacerYup....getting my TB bored and will put her on the dyno
Loud as a mofo dude....but worth the power IMO....
Thanks you
Thanks
in due time
Deletes
Thanks
Me too....gotta clean the car first LOL
WOW Swoosh. That looks great! It really looks like all the waiting paid off for sure! (No pun intended )
The quality looks amazing as you said, the welds look great, and nice choice on the X pipe chamber
I do have 1 question. How come you went with a 2.25" in and 2" out?
You may be able to go with a Magnaflow 11378 to help get rid of some of the drone/rasp, but I'm not sure how far each pipe is from each other. You would have to see and then call Magnaflow to ask if it'd fit. I'm not sure if a 4in round resonator would be able to fit 'between the pipes' if you know what I mean. Maybe if you got 2 really small ones (12-14in or so) you'd be able to fit one after the other (on opposite sides), but they may come VERY close to each other.
)The quality looks amazing as you said, the welds look great, and nice choice on the X pipe chamber
I do have 1 question. How come you went with a 2.25" in and 2" out?
You may be able to go with a Magnaflow 11378 to help get rid of some of the drone/rasp, but I'm not sure how far each pipe is from each other. You would have to see and then call Magnaflow to ask if it'd fit. I'm not sure if a 4in round resonator would be able to fit 'between the pipes' if you know what I mean. Maybe if you got 2 really small ones (12-14in or so) you'd be able to fit one after the other (on opposite sides), but they may come VERY close to each other.
2.25in./2.25in. 11in. 17in. 11378 14378
2.25in./2.25in. 14in. 20in. 11385 * 14385 *
I went with 11385 which has a bigger casing and 2.25 in-out....
as air travels down the exhaust it loses heat, which i turn creates denser air. velocity is important, so you drop down the exhaust gradually to keep the velocity uniform, which in turn keeps back pressure uniform. that's why you see the huge turbo cars with heat wrapping. too keep the temps inside the exhaust where they are beneficial, instead of detrimental like it would in the engine bay/atmosphere
usually the drop down is within the downpipe/jpipe/whatever they call it on different vehicles, and you never actually see it.
usually the drop down is within the downpipe/jpipe/whatever they call it on different vehicles, and you never actually see it.
....but you want to pipe diameter to be big enough to accommodate the exhaust pulses through...in short no restriction....but it shouldnt be tooo big that you mess up the back pressure.... ^ I disagree. It's said that anything after the header collector is a restriction. Most high performance header primaries are "stepped," starting smaller near the head and gradually tapering to larger; then at the collector, necking down small and tapering to a larger diameter (at a larger angle/shorter distance than the primaries). Open collector makes the most power, leaving nothing no speculation as to whether or not everything downstream from the collector is a restriction.
However, I do agree with you that velocity is extremely important when talking about exhaust flow. It's difficult to find the correct velocity/volume combination, but when you do, a lot of power can be made.
I honestly don't think it would've made a big difference whether he went with 2 or 2.25, slight if anything. I was just wondering why.
However, I do agree with you that velocity is extremely important when talking about exhaust flow.
It's difficult to find the correct velocity/volume combination, but when you do, a lot of power can be made.I honestly don't think it would've made a big difference whether he went with 2 or 2.25, slight if anything. I was just wondering why.
I was thinking of doing a different setup in the near future....there are no exhaust whore;s on this website (like wheel whores) maybe I can start that trend LOL....make em and sell em at cost and make something else LOL....manifolds are so extremely different and temperamental. i avoid making any generalizations on them to be honest. and i try and keep what i say NA/FI neutral.
but, it's hard for me to agree with that completely. bigger is only better if you want peak gains(or are talking post turbo exhaust size), and quite a bit of people don't look into the overall net changes. i would take an avg of +5 hp all over, compared to a +15 hp * 6750 rpm. ya know? something rarely seen in conversationgs. just a random example there fyi, since i'm not well versed in TL mods yet.
anyway, area under the curve FTW. but you are right and it probably isn't even a visual difference on a dyno.
but, it's hard for me to agree with that completely. bigger is only better if you want peak gains(or are talking post turbo exhaust size), and quite a bit of people don't look into the overall net changes. i would take an avg of +5 hp all over, compared to a +15 hp * 6750 rpm. ya know? something rarely seen in conversationgs. just a random example there fyi, since i'm not well versed in TL mods yet.
anyway, area under the curve FTW. but you are right and it probably isn't even a visual difference on a dyno.
else go with bigger diameter and merge/xpipe kinda close (shorted primary pipes) and see ur high end take off
Thanks
08-18-2011, 05:31 PM
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hahaha LOL...Sure....am 5AT thow....FYI....