[Vic Cardenas]

Telion- your "projects" move along at a much faster rate than most people average, self included.

Master T never sleeps. (I'm serious)

 

[Telion]

Whoa whoa whoa, we're getting away from a solution here. Kyle already made flanges. 350Z manifolds? Why not just use the OBX header design.

Why not place the other turbo near where the battery is (remove battery and relocate relay box)? If you're going to run the driver's side manifold all the way to a turbo 5 inches away from the other, then it'd be smarter, cheaper, and easier to go with a single. I know the twins will spool better, but you're going to have nearly 3ft between the closest combustion on the driver's side cylinder bank and the turbo. Honestly, if you want this to work well you're going to want each turbo as close to the manifold collector as possible (Cpt. Obvious reporting for duty).

Remove the battery and see what you're dealing with. Either way you cut it, you're going to be removing something more than the battery.

Oh good, I was beginning to think no one was watching or overseeing my project (that is a serious statement this is a first for me). Yeah the headers are available but there are a few concerns that I have with them for me. I would want them to be a bit less restrictive as they enter the head and would prefer a design that was a little more similar to the OBX headers. The fact that they are offered with ceramic coating is a mere bonus considering the heat conditions I am going to be working with. Not to mention the price they can be had for under 100.00 as stated, and I don't think Kyle has stated a price for his yet either plus I would need one off each head his kit only comes off the one side. Hmm more reasons than I expected till I started typing. But I will say for a nearly plug and play non pioneering kit his setup is great and will continue to get better I am sure! (re-read and saw that you said flanges not headers (Kyle hit me up with a price for the flanges via pm).

As for the turbo in place of the other battery I did, and somewhat still am, entertaining this idea. I do think it would be pretty cool to have the turbos sitting off to the one side though. Yeah the Supras and simiar straight 6 setups are where this is most common for the very reason you mention, which is keeping them as close to the head as possible. I am going to go out on a limb though and say that this is because they are spooling big twins and it would be critical to get them close to avoid too much lag. For our cars (from what I have learned and read lag would not be such a bad thing it will give my big girl a chance to get some momentum before tehy kick in. my goal is to keep my total pipe length close to Hotlava's setup because I like where he said his begin to spool. If I am way off base please let me know. I apologize, I feel like I am arguing against your statement, but only in hoes to understand the why behind them that are specific to the Legend (even in theory)

Legend4life PM sent good to hear from you it has been awhile!

350 TT manifolds. Already have second port to turbo.Thats why they are thinking of them instead of the OBX, i believe? Everyone but Telion wants a turbo to end up where the battery used to be

Telion- your "projects" move along at a much faster rate than most people average, self included. Lookin good:thumbsup:

I think if you put both turbos right there, you may have one taking longer to spool than the other. Im my head that doesn't seem like that big of deal as long as they share a common intake plenum.

DandDEE - you aren't alone, this thread makes my brain hurt. Its funny the difference between one of grumpys posts here and in the lounge. Both of them make my head hurt but from different spectrums

Thank you, yeah I have to stay busy or I lose interest. I think you were thinking of the downpipes though the headers themselves I don't think have flanges built into them.

I was thinking about the differences in spool time to and was thinking that I will try to get the piping dimensions as close as possible post x-pipe. I am fairly ignorant to boost controllers but I am also going to read up on whether these can assist in that aspect.

Dethred thank you for jumping in with some constructive criticsm though many here may not want that in their thread or want to even in this one I encourage it. It causes me to think and then re-think what I am doing then validate it through researching what has been posted. Oh and yeah re-locating the battery would be nice as well and if you move the window washer reservoir there is a hole there too similar to the on the passenger side, I admit it was appealing.

Here are the headers I was thinking about if they can clear the sidewalls and run toward the front of the car clearing the powersteering pump, and be able to be welded to a set of manifold flanges I would be set. Tomorrow I am going to go to Autozone and compare the gaskets for each and if that is close I will buy a set of the headers similar to the pic to see what happens. damn I should have bought a set from DV8 when he did that.

 

[Telion]

Master T never sleeps. (I'm serious)

Lol your funny, when you get off work swing by so I can give those chips to you.

 

[Dethred]

Thanks for understanding. I want this to work and for someone to make and sell ME a kit eventually:bigok: .

I am not sure if those 350Z turbo manifolds would even fit between the head and the wheel well. Hell, it'd be a chop job and you'd be doing some cutting, but maybe running the manifold up between the wheel well and the cylinder head. Kyle seems to have gotten a pipe to make it to the turbe from the passenger-side head. The other side shouldn't be too much different (alternator?) . Its been about a month since I've really looked at the engine bay of my Legend so I am not sure. Don't worry about Supra style or anything like that. Just get a picture of Gary D's unfinished TT project and see how awesome that looks. :thumbsup:

Now with proper tuning and some supporting mods, it just takes time, money, and will power to get this thing going. If you want to make a kit that others can make, you want to avoid things like new radiators and fans, etc. It'd be much easier to say "You have to remove your A/C compressor for this setup" to a speed nut than to get him to buy even more stuff (I mostly say this because I have a relatively new radiator ).

 

[Telion]

I know this picture is terrible but it is the best way I can help explain the routing of the pipes. intake being blue and exhaust red. Hence why the 350z's headers would be a much cleaner, better performing solution.

 

[Telion]

Thanks for understanding. I want this to work and for someone to make and sell ME a kit eventually:bigok: .

I am not sure if those 350Z turbo manifolds would even fit between the head and the wheel well. Hell, it'd be a chop job and you'd be doing some cutting, but maybe running the manifold up between the wheel well and the cylinder head. Kyle seems to have gotten a pipe to make it to the turbe from the passenger-side head. The other side shouldn't be too much different (alternator?) . Its been about a month since I've really looked at the engine bay of my Legend so I am not sure. Don't worry about Supra style or anything like that. Just get a picture of Gary D's unfinished TT project and see how awesome that looks. :thumbsup:

Now with proper tuning and some supporting mods, it just takes time, money, and will power to get this thing going. If you want to make a kit that others can make, you want to avoid things like new radiators and fans, etc. It'd be much easier to say "You have to remove your A/C compressor for this setup" to a speed nut than to get him to buy even more stuff (I mostly say this because I have a relatively new radiator ).

Thank you and that is great advice and true. This is a personal project with little to no intent to kit together for others for many reasons such as the ones you mentioned and the fact that I don't want people to try to hold me responsible for what ever goes wrong in their attempt to do this based on a kit from me. I will reserve that right for the supercharger kit (ewe that was prematurely said :hide.

 

[Dethred]

Well, at least consider selling piping and stuff that is custom made, leave the rest up to buyers to pick and then there is little to blame on you (unless there is a boost leak from bad welding ).

 

[Telion]

lol that works,

On a side note an astute eye noticed this would never work because my example was of a sedan and I have a coupe so I fixed it :2cool:

 

[Dethred]

Its difficult to tell how the pipes are being routed in that diagram.

 

[Telion]

Its difficult to tell how the pipes are being routed in that diagram.

yeah I agree I will try to elaborate

pipe A starts at the OBX header routes upward at an angle over the backside of the tranny along the fire wall just above the heater core house the out to the point where the MAP box was then toward the front of the car

pipe b starts on the passenger side of the OBX headers and comes across the trannys kick plate then up near the steering shaft and then under the OBX headers, up and over the drivers side axle then up into the engine bay where the ac was.

pipe c starts under the OBX headers then follows the same path as the headers into the engine bay (the rest is just exhaust).

 

[Dethred]

Please consider having them each on their own side of the engine bay with minimal distance between the heads and turbo. It'll make it easier and more effective. If you're worried about looks, just look at Gary DePriest's setup and realize that with everything crammed to one side, it will be a bit messy.

 

[Telion]

I am still considering it especially if these 350z headers pan out.

 

[legendfire]

I am still considering it especially if these 350z headers pan out.

yea you should check out the spacing on the 350 manifolds or you can look and find ones that might be closer to what you need. if you do end up finding a set that will work out it should definitely make plumbing the system easier and less complicated. the other good thing is that they come with turbo flanges already welded on. as far as space in between the engine and fenders idk. you could go with wheels with greater offset and then put a slight indent in the fender where the turbo would sit. as long as its not touching and you have a good damper on your engine that keeps it from rocking too much then it should be fine. Nissan Performance Racing Products for International Sales from SSAutochrome Inc. check out the skyline low mount manifolds and the stock replacement manifolds. the 8th and 17th from the bottom. before anyone tries to say that the skyline is a straight 6. ya i know, but these are two separate manifolds for a tt setup.

 

[legendfire]

Project Infiniti G35 Twin Turbo | G35TURBO.COM Heres another possibility. the manifolds on this kit look like they tuck in pretty neat.

 

[reboticon]

Well, a straight six is always going to have the exhaust ports on the same side though, right? Or is it different for you import guys and your crazy multi camshafts I like the look of 1 turbo on either side of the engine bay, but thats just personal preference.

Question. I realize that on a racetrack, having both turbos as close to the ports of each head would be the best for optimal performance. In this case though, assuming he was going to drive it on the street, couldn't it actually be helpful to have one turbo further from the exhaust than the other? When i think of it, I see one turbo spooling earlier in the RPMs than the other. Wouldn't that actually help to increase the hp throughout the powerband, instead of kicking it all on at once? I used to drive my 7.0L on the street, and that much torque can get frustrating. Or have i got this figured wrong?

 

[Dethred]

In this case though, assuming he was going to drive it on the street, couldn't it actually be helpful to have one turbo further from the exhaust than the other? When i think of it, I see one turbo spooling earlier in the RPMs than the other. Wouldn't that actually help to increase the hp throughout the powerband, instead of kicking it all on at once? I used to drive my 7.0L on the street, and that much torque can get frustrating. Or have i got this figured wrong?

No. The compressed air is going to the same throttle body. There will just be more lag with one further away (how much is yet to be seen). There's a reason that people buy a pair of headers to gain power and keep their engine running smoothly. When you have two different exhaust gas paths with differing flow rates/velocity you going to have different combustion situations therein, which is not ideal.

 

[Telion]

Ok I picked up a gasket from an 05' 350z and it looks fairly promising the shape and size of the holes are virtually identical to our cars. The difference as we pretty much knew was in the spacing between each port. in order to best determine the spacing I centered the two center holes which line up nicely and measured the variance on the outer holes. Each outer hole on the 350z is a hair over 1/2" wider than the Legends gasket. So I am thinking this could be worth a shot. At the price these are available for it would cost more than that just to buy the material for a custom set to be made not including labor, and even better I will not have to hack up my OBX headers. One thing I do need to consider though is the amount of stress that 1/2 would cause. I think it would be best to heat them up and correct the variance. here's the pics.

 

[Dethred]

Do you plan to heat-bend to match?

 

[Telion]

Absolutely, which led me to my next thought which was that I better not get the ceramic coated ones and just get the stainless steel ones where the flange is welded on this way the flange would be easier to remove and I don't have to contend with or ruin the ceramic coating when bending them to fit.

 

[Dethred]

Get to it!