Acura Legend Forum banner

Lusting for a twin turbo setup, and would like (helpful) ideas

142K views 1.5K replies 96 participants last post by  Telion  
#1 · (Edited)
First I apologize for the serious teaser and putting up pics of a project without results and dyno's because there are none. And who knows how long it could be before I go any further it could be a year or more! I just love hearing the ideas suggestions, feedback and knowlege you all have to offer. Isn't that a bulk of what we are here for? :) Well as many of you know I am currently underway with the Supercharger setup. It has been a very slow process but is still underway and the manifold for it is now being welded from what I understand.

I could not get over how much I loved Hotlava's tt setup and it overcame me. So I figured at some point in the future I also wanted to do a tt setup and began slowly buying the additional pieces it would take to do so (being that many are the same, such as injectors, fuel pump monitoring gauges and what not). Then last week my car decide to get some garage time (it broke down later found to be a broken axle, Ebay? I think it was tsk tsk). But none the less it was a perfect excuse to play while she was down so I started to look at how I would eventually want my tt to be setup. What better way than to play. It helps kill concepts that look good in your head given the (not so) workable space; a few of my ideas have since died. But long story short this is where I am at so far. Now that my wife knows that it is just a broken axle I only have shipping time to continue playing before having to put her back together again.

A couple quick notes

-No this will not be done/completed for a very very long time.-This is very new to me so I would be the last to ask for suggestions though I love to share ideas.
-Yes the supercharger project is still underway and taking precedence over this.

-No I did not wake up one morning and say I am going to do a Legend Twin turbo setup during breakfast (sorry Hybird, that just kills me lol)
-No I am not going to be using PVC intercooler piping it is just cheaper to hack away at till I figure how I am going to do it when the time comes.
-I have also read up on some articles of Twin vs. Single and each seem to have there advantages from knowlegable members of their respective forums.
-cheap clamps will be replaced with t-clamps.

Ok the book is done here's the pics. (excuse the mess my garage is at war)
also please forgive the ugly "stand in" mesh and terrible paint, looks will come last. I don't want to tear it up after doing body work and paint.
Image


Image


Image


Image


Image


This one concerns me, there is not much rook and there is a damn brake fluid line that may need to be relocated. wires and hoses I don't mind moving brake, AC, and power steering lines I am not so happy/experinced with.
Image


Hopefully at some point I will be done destroying my car and be able to build it up like the one in my head lol.

-Tip- If you get a new intercooler or radiator, cover the fins with cardboard until it is fully installed so you don't damage the fins during installation :hide:

PS. The purple finish and and nice shiney engine bay will be back in time. it was too hard to maintain and not scratch to hell while getting a bug of some sort and doing stuff like ^ this. I think eventually I will powdercoat vs. paint though.
 
#804 ·
i didnt have 2 hours to read through all of the posts but looks damn good from what i have seen! Nice work man...mad respect
:popcorn:
No worries I don't blame you, at some point I will do a picture thread of the various aspects of the cars progression.

the flow properties of that exhaust system are very respectable looking!
Thanks, as you look back through the many variations of the exhaust's design the flow it was something that I was very concerned about which will lead me to my point for Moistical.

I imagening how hard it is to do this the way you did it, I am also need to go thru something like that... keep it up you almost there!

What is the deal with that pool rack triangle? do you play pool?
I am a monday night league pool player.
Oh man was it a pain, I wish I had it up on the ramps and the jack stand but it is a pain getting the engine in and out when it's on the ramps.

I love pool it is one of my favorite things to do in my rare moments of downtime I too use to play in a Monday night league before I got married, since then I have had to delegate my time a little differently so to compensate I bought a table. But in the pic the rack happened to be the right size to hold the downpipe up and keep it off the chair in the corner. The purpose of the table in that shot was because I too was suprised at how long our cars actually are. they must be really well proportioned because it doesn't seem that long. but that is a 7 foot table not an 8 (it wouldn't fit lol) However I did design that room around two things a pool table and a wet bar :).

damn are our cars that long, lol. T, obvious no diss in my statement to u, but are u running low on funds from this project or is this a good muffler? looks like a lower quality muffler and based on the quality of work you've spend on this (what I call a nightmare) project, I assumed you would have had a better muffler on the end of all this piping?

Any reason you choose that muffler? It is going to be great to hear them t-bos!!
Indeed they are lol shocked me too. As for the muffler no dis taken, and an understandable question/comment.
As previously noted a lot of attention was paid to how the exhaust would flow even to the point of the muffler hence the no dual exhaust. I chose this muffler because of the quality for the price. The downside is that you can't tell the difference visually between it and a 20.00 muffler ans a $300.00 muffler when it comes to an N1 style of muffler. Now if you know me when it comes to mufflers you will know two things 1. I won't spend alot on a muffler and 2. I will try to cut costs where possible, bend them where needed and spend where necessary (still looking for a better cheaper way to do it).

I bought this muffler because I knew I needed to achieve maximum exhaust flow, have a 3" inlet, and a silencer for times that I didn't want it to be too loud. This muffler met those needs at a respectable cost and was tig welded with a stainless still finish Ideally if there was an inexpensive dual outlet muffler that had an internal corrugated Y single 3" in and a dual 2" out design wrapped in stainless wool at a good price I may have opted for that but I didn't see that for the price I wanted, and the OBX muffler on my car now has that (appearance) but is still a little loud. But to answer your question nope not out of funds but getting close. And it is more than I have spent on a muffler to date :).

Also keep in mind that for an N/A car correct pipe size for the best velocity is a key factor. High-end mufflers (Remus) design to meet these requirements to provide gains by designing with this in mind. This is a little off topic but I think of it like the design differences that create gains between a tri-y type of header vs a 3 to 1 header both similar in the directional flow characteristics and dimension, but design impacts or increases flow (tri-y is better). Now on a Turbo'd car throw that theory out the window, the faster you can get it out the better!

Here is the muffler info.

GT-1 TYPE UNIVERSAL MUFFLER (STRAIGHT CUT TIP/ WITH SILENCER) *** TIG WELDING 3" I.D.
SKU: MUFFLER-CR5532U-3

Price: $109.00 (not what I paid of course :)
List Price: $149.00 - You Save: $40.00

End chapter 1 (haha that was a lot of writing)
 
#808 ·
No worries I don't blame you, at some point I will do a picture thread of the various aspects of the cars progression.

Thanks, as you look back through the many variations of the exhaust's design the flow it was something that I was very concerned about which will lead me to my point for Moistical.

Oh man was it a pain, I wish I had it up on the ramps and the jack stand but it is a pain getting the engine in and out when it's on the ramps.

I love pool it is one of my favorite things to do in my rare moments of downtime I too use to play in a Monday night league before I got married, since then I have had to delegate my time a little differently so to compensate I bought a table. But in the pic the rack happened to be the right size to hold the downpipe up and keep it off the chair in the corner. The purpose of the table in that shot was because I too was suprised at how long our cars actually are. they must be really well proportioned because it doesn't seem that long. but that is a 7 foot table not an 8 (it wouldn't fit lol) However I did design that room around two things a pool table and a wet bar :).

Indeed they are lol shocked me too. As for the muffler no dis taken, and an understandable question/comment.
As previously noted a lot of attention was paid to how the exhaust would flow even to the point of the muffler hence the no dual exhaust. I chose this muffler because of the quality for the price. The downside is that you can't tell the difference visually between it and a 20.00 muffler ans a $300.00 muffler when it comes to an N1 style of muffler. Now if you know me when it comes to mufflers you will know two things 1. I won't spend alot on a muffler and 2. I will try to cut costs where possible, bend them where needed and spend where necessary (still looking for a better cheaper way to do it).

I bought this muffler because I knew I needed to achieve maximum exhaust flow, have a 3" inlet, and a silencer for times that I didn't want it to be too loud. This muffler met those needs at a respectable cost and was tig welded with a stainless still finish Ideally if there was an inexpensive dual outlet muffler that had an internal corrugated Y single 3" in and a dual 2" out design wrapped in stainless wool at a good price I may have opted for that but I didn't see that for the price I wanted, and the OBX muffler on my car now has that (appearance) but is still a little loud. But to answer your question nope not out of funds but getting close. And it is more than I have spent on a muffler to date :).

Also keep in mind that for an N/A car correct pipe size for the best velocity is a key factor. High-end mufflers (Remus) design to meet these requirements to provide gains by designing with this in mind. This is a little off topic but I think of it like the design differences that create gains between a tri-y type of header vs a 3 to 1 header both similar in the directional flow characteristics and dimension, but design impacts or increases flow (tri-y is better). Now on a Turbo'd car throw that theory out the window, the faster you can get it out the better!

Here is the muffler info.

GT-1 TYPE UNIVERSAL MUFFLER (STRAIGHT CUT TIP/ WITH SILENCER) *** TIG WELDING 3" I.D.
SKU: MUFFLER-CR5532U-3

Price: $109.00 (not what I paid of course :)
List Price: $149.00 - You Save: $40.00

End chapter 1 (haha that was a lot of writing)
ok thanks for the details. that is what I actually thought that is ways one of those cheap $20-$30 mufflers you see on ebay.

Mkes sense thought, bringing in all that flow you need to get it out quickly also. Keep it up man; lovin you dedication to this proj.
 
#803 ·
damn are our cars that long, lol. T, obvious no diss in my statement to u, but are u running low on funds from this project or is this a good muffler? looks like a lower quality muffler and based on the quality of work you've spend on this (what I call a nightmare) project, I assumed you would have had a better muffler on the end of all this piping?

Any reason you choose that muffler? It is going to be great to hear them t-bos!!
 
#805 ·
Well I now know that it is not too long and that it is close to fitting. I think I need to tighten everything up and bolt up the tranny (it jacked to close height) before making the final adustments.
 
#806 ·
Oh my hell this F'ng exhaust is kicking my a. I will get it though it will just take more time.
 
#807 ·
Is not aligning right?
 
#809 ·
Not the way I would have liked it too but I will just keep at it till it is right :(
 
#811 ·
a couple of angles are off I will have it fixed by Tue, which I took off. And about your PM yeah your right because I won't be able to hook up the wideband yet to monitor it :(
 
#813 · (Edited)
You got that right, I am going to get it and I am going to get it right, it is just going to take more time. Also since having the turbos rebuilt I never new what the trim was on the compressor side till now. I decided since I have to clock the turbos I may as well calculate the trim of them and they are 60 trim and to my surprise the blades are actually Turbonetics :) Edit I was wrong they are AirResearch/Garrett. (same thing really)
 
#815 ·
More welding will be necessary unfortunately, how much I din't yet know.
 
#818 ·
Thanks it would be a nice goal to test fire next weekend don't know though it will kind of depend on what I get done this weekend, there is still alot of work to be done. And I seem to find more every time I get into it. for now though I want to get every thing in place so I can get these pipes lined up right
 
#819 ·
Oh this build is an emotional roller-coaster lol, I got the exhaust figured out I just need to shave down the flanges on the axle-back and have the front flanges welded :). But I did encounter a design flaw in the build. I have to go back through previous pics to see where the oversight began but there is not enough room for the internal wastegate on the drivers side. This was a costly error :(.
 
#821 ·
Yeah, pretty sure I got it figured out just got a work through some minor detials and beg the wife for some forgiveness but more on that later :)

On a side note though I was going through the old pics in photobucket and thank God for you guys because it is amazing that I have gotten this far.

:)
Image
 
#822 ·
I was not home to receive a package today and really wish dispatch could call the driver that has my package find out his exact location to give to me to meet him and pick it up instead of having to wait till tomorrow. . .aarrrrrr the anticipation is killing me. and I have to work a 100 hours tomorrow. DAMN it
 
#824 ·
Ok I can't sit on this any longer here is my wastegate solution :D The detials
I spoke of previously, yeah intentional typo :)
Image

Image


Now to place them and design how they are going to fit (color scheme is a go!)
 
#825 ·
Hell let's just call it Christmas :D
Image


Thanks DV8, it looks great.
 
#827 ·
Ok here is my idea on where I will place the wastegates opinions and feedback are encouraged, especially since I have no clue how hot these get. Though I have a feeling heat won't be the issue here. Boost creep might be, not sure though. Lastly disregard the wiring it won't be there since it is assisting in keeping them in place.

Image


Image


Image


Image


Image


Image


Image
 
#848 ·
dude heat is always an issue when going turbo. telion your whole setup is going to need to be completely wrapped with heat shield/wrap, your engine bays ventalation will need to be improved. and you will probably need an even bigger radiator than the one you currently have,its a two core right? a three or four core will most likely be needed
 
#835 ·
Ok I need an opinion about the wastegates.

Here is the dilemma I want to be able to tie the wastegates into the exhaust but I also want to unhook it and run an open wastegate, and I want to not run into the issue down the road with the dump pipes cracking from heat expansion. I was thinking of this vs. adding a flexpipe to a dump pipe. Yes I know I am over thinking this :)

Image


Image
 
#836 ·
We are definitely not to the exciting stuff yet, sorry guys. Because of another thread I had recently posted in I have decided to share with you the filters I decided to go with. After spending hours searching I could not find the combination of what I wanted in a filter in anything besides the Apexi and the Fujita filter. So for the price and at the expense of maybe 2 or 3 hp I decided to go with Fujtia.

A velocity stack at the top of the filter
Image


Dry synthetic fiber
Image


a velocity cone on the inside of the filter and smoothed edges
Image


The reasonable price and decent brand (wont fall apart on me) for the above options had me at hello, but I still kept looking and could not find anything else in that price range. Most were just over priced for on par hp gains and filtration ability.