[whats77inaname]

Every time I see an under the car mounted turbo, I just keep thinking that is a stone's throw away from a detonated engine :| You will DEFINITELY need a plate of some sort under there to protect those bad boys.

 

[GrumpySteelMan]

I would also agree that a skid plate is a good idea at this point.

As far as that really scientific and involved post about singles vs twins.... the argument is simple for me. If budget is no object, then it is all about packaging. These cars have enough displacement to easily go either direction.

Personally I've always felt that a single turbo setup was best for maximum effort. Only one shaft and set of bearings for friction. Less total rotating mass, inertia.

Aside from maximum effort though, you really can go either way. What exactly are those turbos you're using?

 

[Telion]

For now just a set of used Garrett AR.42's I wanna see how this works out before putting big money into turbos.

 

[whats77inaname]

I'm a single person, as well. Once in boost, you shouldn't have any lag to worry about. With a 3.5, one would assume you have enough grunt to get off the line.

 

[chapman89]

Wow, those most recent pictures put everything into perspective on how cramped of a working space you have! How do you intend on making a protective shield...Are you thinking aluminum or plastic of some sort?

I'm very impressed with this! Good work!

 

[GrumpySteelMan]

For now just a set of used Garrett AR.42's I wanna see how this works out before putting big money into turbos.

Yeah that really doesn't tell me anything. That's the compressor housing A/R. So that only tells me it's a T3 turbo with a .42A/R compressor housing. Doesn't tell me squat about compressor trim or exhaust housing A/R...which are two out of three of the most important things about a turbo, IMHO.

So what did they come off of then?

 

[legend89chopped]

Considered raising the floorpans, and/or pushing the lower firewalls back a little? It what's going to have to be done on the G1. Just a couple inches to give more clearance for heat shields and lower guard plates.

 

[Telion]

Yeah that really doesn't tell me anything. That's the compressor housing A/R. So that only tells me it's a T3 turbo with a .42A/R compressor housing. Doesn't tell me squat about compressor trim or exhaust housing A/R...which are two out of three of the most important things about a turbo, IMHO.

So what did they come off of then?

Sorry buddy I was working under the impression that you saw my junkyard thread, here's the stats on teh turbo's

Specs:
Garrett model number: TB0363 (T3 series turbo)

Compressor Trim: 50
Compressor housing A/R: .42
Turbine housing A/R: .48
Horsepower Capabilities: ~275hp
Internal Wastegate: Yes
Water cooled: Yes
Wastegate setting: 7 psi

Considered raising the floorpans, and/or pushing the lower firewalls back a little? It what's going to have to be done on the G1. Just a couple inches to give more clearance for heat shields and lower guard plates.

That's a good idea but I think I will get a little more clearance once the y-pipes are out of the way interms of mounting, Hows the process of your project going I had not seen an update in a bit and saw that you were doing big things.

Wow, those most recent pictures put everything into perspective on how cramped of a working space you have! How do you intend on making a protective shield...Are you thinking aluminum or plastic of some sort?

I'm very impressed with this! Good work!

Yeah space is quite tight down there but even as tight as it was it was comforting to see that I was able to get the clearance that I did and I think honestly I can get a little more as stated before and if I move/replace or redo the wastegates. I was looking at the EVO turbos and they are designed a little better for this type of fitment. and it seems like if all goes well I may sell these and get another T3/T4 hybrid with a .60/.80 trim and run a set of those. But for now I just wanna try it out and learn a few things first hand. As for the skid plate My preference would be aluminum but I may end up going with another metal I have to look into what silimar options are most used. What would be really cool is doing like what Mr. Keith had mentioned and be able to cover a larger area of underside of the car and possibly even replacing the tranny skid plate as one larger solid (welded) plate.

 

[GrumpySteelMan]

Sorry buddy I was working under the impression that you saw my junkyard thread, here's the stats on teh turbo's

Specs:
Garrett model number: TB0363 (T3 series turbo)

Compressor Trim: 50
Compressor housing A/R: .42
Turbine housing A/R: .48
Horsepower Capabilities: ~275hp
Internal Wastegate: Yes
Water cooled: Yes
Wastegate setting: 7 psi

Running twin 50-trims on low boost should be lots of fun. Good times! It should probably work pretty well actually. If you decide you like the turbos, the best thing to do would be weld up the internal gates and run a single external WG upstream.

Of course if you want this T04E 57-trim compressor wheel and .70A/R compressor housing and backplate that I have sitting around (ready for a T3/T4 hybrid) to run a single...just let me know. 4" in 2.5" outlet. You can have it if you will use it.

 

[legend89chopped]

That's a good idea but I think I will get a little more clearance once the y-pipes are out of the way interms of mounting, Hows the process of your project going I had not seen an update in a bit and saw that you were doing big things.

It's going slow. I still don't have the right housing for my turbo yet, but the computer is tuned now. I've been working on the roof, but that's another slow-moving part of the project, seeing as it's the first time I've worked with aluminum, and I'm learning as I go. Keeping me busy.

 

[Telion]

Running twin 50-trims on low boost should be lots of fun. Good times! It should probably work pretty well actually. If you decide you like the turbos, the best thing to do would be weld up the internal gates and run a single external WG upstream.

Of course if you want this T04E 57-trim compressor wheel and .70A/R compressor housing and backplate that I have sitting around (ready for a T3/T4 hybrid) to run a single...just let me know. 4" in 2.5" outlet. You can have it if you will use it.

I hope so I want it to atleast put down some decent numbers and surprise a few people at the track.
I agree that it may be a good idea to weld up teh waste gates and run a single external that could also give me some more play room down there. Running a larger single seems like a good idea too. I would be interested in seeing a comparison that was Legend specific between the two so down the road. Thank youthat is a very generous offer, I may have to take you up on that. But I would have to give you something for it. Right now I really wanna just see any kind of F/I on this car so I am going to keep moving forward till it has it.

It's going slow. I still don't have the right housing for my turbo yet, but the computer is tuned now. I've been working on the roof, but that's another slow-moving part of the project, seeing as it's the first time I've worked with aluminum, and I'm learning as I go. Keeping me busy.

Yeah I understand the definition of slow at this point in terms of modifications, I tend to think I have a great deal of patience tied to a limited budget but even with that I often feel like this could be done faster or I need to learn more in less time. But these are not the types of projects you can really rush unless you have been in the game for a while. Glad to hear that you got the computer tuned that seems like a very viable solution if I can't make this work the way I currently think I can. Keep up the great work!

 

[reboticon]

guess i'm the only one tryin to figure out how to put an ls7 in my legend..

call it the levette. haha

( i really have been trying to figure out if i can do it ( hell i put an ls6 in a 1954 vette) and if the guy can do it with a civic hatch. i KNOW i can do it with a legend.

Well if we are all admitting secret legend fantasies, i was trying to figure out how to put a 5.0L in mine..
Car Craft did an article about 8-10 years ago where they put a Big Block Cadi + trans in a Chevette. No thats not a mistype, i said chevette =). It ran 11s on its first run.

@Telion
Honda racing did turbos in the NSX on a 3.0L, thought you might want to look into it for ideas.

 

[Telion]

Ok I got a goof view of what it looks ike to have the car at its normal (ie not on jackstands) height and well I really don't think that is where I want the turbos, I would be very sick if I hit a speed bump and lost them and a portion of my exhaust or had a skid plate that sat that low. I should have firgured
6-3=3 ie the amount of space that is also left between the turbos and the ground. into the engine bay they will go. I just gotta find a way to run all that pipe.

Which leads me to my next question/opinions of each of you exhaust informed ones? can I run a 3" pipe in off the y and then split it to each turbo in teh engine bay, and then do the same thing going back out so that there is only one 3" pipe coming in and one going out, and both getting T-d off in the engine bay?

Positive side note radiator is in once installed and tested I will put up a review.

 

[mellofelow]

Positive side note radiator is in once installed and tested I will put up a review.

U saying you have the new radiator in the engine bay? But no fluid yet?

 

[reboticon]

If you are going to come off the Y-pipe, wouldn't it be a LOT easier to just do 1 bigger turbo? You could relocate the battery + fuse box and stuff it right there.

 

[Telion]

The radiator is in and installed, If you were to get one though I would cross reference the Accord that has the same coolant temp sensor as our cars. There were also a few ther slightly suspected issues with the variation I got. You will need to fabricate custom mounts upper and lower I can through together a Quick How I did it list and pics once I figure out my photobucket password (grr). The hoses need to be cut back a little so there is no undue stress on the radiator. And for some reason the radiator cap (which I planned to swap out anyway didn't want to be cooperative in terms of coming off. I did find this as a cap issue and not a design issue as my radiator cap works and fits great.All in all I am very please especially when you take into account that you get a $100.00 fan making the cost of a completely welded alll aluminum radiator just under $100.00 which is not off par from OEM. No updstes as to it's cooling abilities as I am still in the bleeding process of it. Now I know why I normally fill and bleed it on ramps or jack stands.

As for going with one big turbo, I really have no desire for my car to be a drag queen, I want her to be a bit more balanced and I just have the urge to do twins vs. singles; personal preference I suppose. Only update on that is that they are definately not going under the car. I don't want to have to fear bumps, unknown roads or unknown changes in the roads too late.

 

[whats77inaname]

One single :nono: = drag queen

 

[Telion]

lol not sure what you mean by that but, I am re-stating what I have learned thus far and that is that most people that have a single large turbo vs. twins need the power and are ok with the increased spool time because they can afford a few seconds for a very rewarding pay off down a straight away where as usually a tt setup the spool time is decreased and in my scenario the two turbos would be smaller so they would not yield as much top in power but will provide it in a shorter time. But again I have no first hand experience in this and wou encourage you to see what you find regarding this and jump in the conversation pool of knowlege too.

 

[mellofelow]

Is the radiator out of the way so you can do this? Here are a few pix of Integra. Looks like a single turbo, 694 WHP dyno & 10.27 on the strip.

I'm lucky to have a repair shop near me that knows their stuff and races on weekends.

 

[Telion]

Yeah I will get some pics of the newly freed up space as soon as I get a chance to clean it up a bit she's pretty dirty right now. My main concern space wise is getting enough pipe space to run back from and back to the exhaust I really don't wanna hack up the OBX headers yet because that will cause issues with other projects.

It is kinda hard to tell but here is kinda what I have in mind at the moment, I just have the one side to show right now but by this weekend hopefully I will have both sides planned out. I will need to muve my PS resevoir back a little and relocate some wires though.

(new radiator not installed in these pics)