Jumbo's Silver FX - 2nd custom build
- Thread starter jumbosrule
- Start date
So they're going to V mount the IC and radiator? And the run the other coolers on the sides? I saw it on a 350Z, looked impressive. Were you having cooling issues before? A friend of mine used to fabricate V mounts for his race cars, but they were drifting or tracking so cooling was an issue on repeated runs.
Great News Brad to see you up and running within the projekt again that is. Intake / exhaust and heat exchange.....when you say it it sounds somewhat like little things but should be a while for them to figure that all out again i gues. What do you think.....any ETA or as long as it is ready for the next season it would be fine...?? ;-)
Good luck with everything man. Will follow your tread closely :good:
Good luck with everything man. Will follow your tread closely :good:
No V mount. Guess I didn't explain very well. Everything will be mounted and flat, but we are going to duct the lower opening of the bumper to the IC and duct the upper opening to the rad & oil coolers. The fans and shroud are rated for more cfm than I need for my power levels.
I learned a lot about what I want and don't want by having done this before. Our plan is pretty solid and all the parts are in hand... Early 2014 I believe I'll take delivery.
Thanks and true! For the last few months I'm back on painting her laser red. That won't be for a while though. Think I will focus more on interior next, mostly because I was pretty much stock in big red.
Exhaust manifolds are almost finished. One completed today, the other will be welded up tomorrow.
Here is one side test fit. This is all with silver's motor; big Red's built motor is sitting on a pallet just a few feet away.
I love the turbo placement. This has both better presentation and more symmetrical, shorter routing than big red.
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I can't see the new pictures come thru, but always love hearing the progression. It's hard to fathom such great improvements in this version 2. I imagine that the tiniest design improvments come to you easily since you've done it before. Obviously still a ways off, but do you think she'll head out west when completed?
I just paid $30 so you guys could see the pix. Photo bucket plus account, yahoo!
PnB yeah man it's definitely coming out to Cali. This is where the interior and paint will be finished.
PnB yeah man it's definitely coming out to Cali. This is where the interior and paint will be finished.
Love the new turbo position brad. We have the extra 4 inch + room there compared to the Z's so why not. I was just trying to figure out how they would run the downpipe.
Was the reason they made new headers aspecially for this new set-up ?? As the discussion always goes that performance headers aren't neccasary on turbo projekts ?? Just FMOI ( for my own info ) haha.
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Was the reason they made new headers aspecially for this new set-up ?? As the discussion always goes that performance headers aren't neccasary on turbo projekts ?? Just FMOI ( for my own info ) haha.
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Love the new turbo position brad. We have the extra 4 inch + room there compared to the Z's so why not. I was just trying to figure out how they would run the downpipe.
Was the reason they made new headers aspecially for this new set-up ?? As the discussion always goes that performance headers aren't neccasary on turbo projekts ?? Just FMOI ( for my own info ) haha.
I would never say tubular headers don't benefit turbo builds; they do. But exactly where in the RPM range and at what engine load depends on how they were designed. One benefit to equal length runners is to help exhaust pulses merge in the collector without as much turbulence inside the pipe. In general they should be more efficient at spinning up the turbo. This would be even even more evident in a twin scroll turbo setup where specific cylinders are routed to one side of the turbo inlet. In this case it is necessary to consider which cylinders and how they merge. My turbo setup is a T4 flange so I do not have the twin scroll feed requirements.
In my case it was strictly for routing and presentation, although it may show gains over the last setup- we will see! The two exhaust manifolds will feed forward and Y together in front of the motor, under the turbo. You can see the turbo inlet pipe in one of the photos.
That looks awesome. Was there a reason they kept the tubular headers so short before they merged into a single pipe? A space issue? They clearly did a great job on building them, just wondering why they didn't build a longer collector/merge. That's a pretty cool turbo mount and creative routing of all the pipes. I would have never guessed there was room.
The new setup looks great!
The fabricator that Powerfab uses came from Hennessy a couple of years ago. The guy has done a whole lot of custom manifolds (about a half dozen of which I have seen personally). I gave them my wishments and told the shop they had the final call and details.
The long and the short of what I asked for is this; presentation and packaging was important to me. The center mounted turbo was a design feature that drove most of the pipe routes. I asked that the hot side (manifold through exhaust tips) be moved away from the cold side (turbo through IC to throttle body) as much as possible. Through discussions over the phone and emails with photos and sketches, Powerfab suggested the pipe sizes and routing based on the available area. The only way to get the hot side down low and away from the charge pipes was to run the exhaust manifolds outside the frame rails and immediately back in, which is what you see in this photo.
As to the exhaust manifold length and collectors, this is not their first custom turbo VQ motor. The routing might not be ideal for a dedicated track car in that maybe there are some efficiency losses they way it is done. Powerfab says no; it's difficult to feel the difference in a (single) turbo response no matter how short or long the hot side of the turbo setup is made. Big Red's turbo response felt to them just like some Gs and Zs with turbo kits that are compact and tight just because of space and packaging restrictions. That being said, this particular setup and routing is better than Big Red's in that we are using larger diameter pipes almost everywhere, the exhaust manifold routing all the way to the turbo is symmetrical (equal length) and the entire cold side (turbo through IC to throttle body) is both shorter and runs are physically further away from the hot side.
This will actually be a single 4 inch exhaust with both a resonator and a muffler. Just before the muffler I will have a cut-out solenoid that will be switchable open to the second exhaust tip. From the exterior it will look like regular dual tipped exhaust but only one tip will be in use until I decide to open the cut-out and blast the sound without the muffler. Totally unnecessary and I can't wait to play with it.
As for space... it's a little tricker than it should be. With as much space as we have because the V8 also fits in there, there are some tight clearance areas on each side of the motor, making perfectly ideal routing impossible without cutting and rewelding chassis parts. The front is easy - pretty sure I could fit both of my kids in that space with the hood shut. Momma wouldnt be happy to see me prove that theory.
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Great job brad...! You and the guys from powerfab realy thought this 2.0 version through. Any further plans for the tranny as the first set-up already mett the tranny's limit and by the sounds of it the new set-up will bring even more power. Will the new drive shaft help any in that ?
Verzonden vanaf mijn GT-I9505 met behulp van
Verzonden vanaf mijn GT-I9505 met behulp van
Well Ray, I actually don't think it will be much more power. Might be better efficiency, but my goal was to keep the same turbo, motor, tranny and computer so lets just say I'm keeping what I loved about the last build and compromising a lot less with the new ideas. The drive shaft is part of that efficiency improvement, as are the (future) new wheels. I'm trying to reduce rotating mass for faster acceleration.
The turbo fabrication is complete! Big Red's motor is back on a stand - first time in 15 months it has made it off the garage floor.
From the turbo to the throttle body the pipes will be chrome. From the exhaust manifolds to the turbo, we are using gunmetal ceramic performance coating. Same coating as in Big Red, except there it was Matte black on the hot side and Silver on the cold side. Chrome will be a better contrast in this engine bay, especially on the most visible pipes.
Notice the cutout before the resonator?
The turbo fabrication is complete! Big Red's motor is back on a stand - first time in 15 months it has made it off the garage floor.
From the turbo to the throttle body the pipes will be chrome. From the exhaust manifolds to the turbo, we are using gunmetal ceramic performance coating. Same coating as in Big Red, except there it was Matte black on the hot side and Silver on the cold side. Chrome will be a better contrast in this engine bay, especially on the most visible pipes.
Notice the cutout before the resonator?
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Oooww, the secret bypass!
Looking nice!
Looking nice!