Rewelded the Y pipe. Transition is much smoother and welds are fairly decent looking. Also deleted resonators.

Here's a sound clip I recorded. I had to hear how it sounds from the outside.

https://www.youtube.com/watch?v=BSjq...ature=youtu.be

https://lh6.googleusercontent.com/Av...=w1096-h822-no

I had some spare aluminum bars laying around so I added two braces for the front bumper since I'm not running any undertray. This added significant rigidity to the bumper.

https://lh3.googleusercontent.com/-q...o/IMG_0635.JPG

https://lh3.googleusercontent.com/Pc...=w1096-h822-no

Thats some mighty fine work youre doing there!

I don't get any sound on the clip

Why aren't you running an undershroud?

Great job on the build...

Did Nismo conversion but didn't get the undertray. I actually removed the base oem undertray on my first oil change. Thought it was ridiculous on how many bolts and pins I had to remove to get to the drain plug. I know Z1 has a nice aluminum alternative but I'm not convinced to put one on yet. It's been 9k miles and I haven't notice any negative effect. Does the youtube link not work for you?

Great job on the build!!! very inspiring to all of us DIY people out here

I just clicked the in post video and it didn't have any sounds

I'm running the ZSpeed undershroud and love it

BTW beautiful build :tup:

Car sounds sick!

Great job! Just curious, have you done a cost comparison vs buying a prefabbed kit? As a fellow DIYer I know nothing can compare to the satisfaction and attention to detail you get when doing it yourself, and you did an outstanding job, but would you do it again or just buy a kit?

Beautiful welds, btw. I'm jealous...

I MAY have considered going BP's single turbo setup but with Comp's oil-less turbo. I didn't want to drop the motor or transmission to install the turbos and relocate wires and hoses, and I can't imagine servicing them would be any easier. I think the only reason why I went with twin is because of better boost response and higher efficiency overall, plus I may have been the first 370z with the turbos where they are. Cost wise, it came out to be about the same as BP's kit (without uprev, clutch, exhaust etc). I used top of the line products and materials and with each turbo costing $1650 did not help the budget at all. If I had a car lift and a better workshop, I wouldn't mind create some pre turbo down-pipes for other DIY'ers out there trying to do their own turbo kits.

I used a temporary boost gauge up and found that my max boost is only 7.5-8psi. It sure pulls harder than I thought though. I'm going to adjust the wastegate actuator rod and bring it to 10psi. Dyno tuning is on my list of things to do before New Year (hint hint).

On a fun account, my friend with a built G35 using Greddy TT and Haltech EMS requested my help in retuning his car to run pump gas. I initially tuned it on E85 in October and it made a hefty 696whp @19psi. Today I tuned it for 11psi daily driving on pump 93 and we went for a little "spirited" drive. Not sure on numbers but it did put a smile on my face :driving:

https://www.youtube.com/watch?v=aOXP...ature=youtu.be

build
 

This is exactly what I've been looking for if you could mass produce the down pipes would be great. If not i would pay you to make me a set.:happydance: Whats the modle number for the turbo your using please? thanks and great Job!

They are comp CT2 4747 billet triple ball bearing. Just call the number on their main website to inquire. They have great customer service.

Here it is dyno tuned. 472whp & 421ft-lb @9psi

The combination of cold weather and worn out Michelin PSS gave me a hard time with traction on the rollers. 4th gear would not hook. I ended up having 2 of the guys sit on the trunk to give it traction.

My impression on the result is exactly how I intended for the kit to deliver. Instant throttle response, high mid range torque with a feasible powerband. The .64 AR housings are showing their limitation as torque is ramping down on top end, and they are not meant to make peak power. I did wanted to increase boost a bit and hit 500whp but I did not have any boost controller setup. Overall the graph is smooth and shows no sign of hiccup.

https://lh6.googleusercontent.com/-Q...no%2Bgraph.jpg

great work and follow-through!

How I fixed no traction issue https://drive.google.com/file/d/0BzZ...lKSjM5ZkE/view

Your MR2 is ridiculous. That must be a hoot to drive.

Sounds great!

Awesome work!

Yes it was. It made 430whp and walked an E85 GTR that ran 10.7 @132mph. I sold it though. I chose to keep the Z since it's a more enjoyable street car.

Installed Apexi AVC-R boost controller. My plan: boost by gear to maximize traction in all gear, or at least get it close enough to allow traction control to actually work. Boost by RPM function will fix boost fall out problem at top end. Mounted the controller using a vent phone holder. The controller goes into the glove box when I need it out of the way.

https://lh5.googleusercontent.com/-z...o/IMG_0756.JPG

https://lh6.googleusercontent.com/-6...o/IMG_0766.JPG

hết xảy anh hai. That la het xay

Thangbom aka YzGyz

:iagree:

Hello dai ca :)

I had the chance to re-tune the flex fuel sensor of my friend's built G35 Greddy TT kit on E85 and E10 (pump 93). I love working with Haltech EMS, much more user friendly than other standalone EMS I've played with. The car is honestly a beast. These VQs can really put down some power given the right setup. I'm planning on running E85 this summer, utilizing a flex fuel sensor and ethanol content gauge. The 5 switchable maps with uprev will be tuned accordingly to the ethanol content. It's going to be a manual input flex fuel setup. Here's a dynograph from the G35's tuning session.

https://lh4.googleusercontent.com/aj...=w1598-h777-no

That's ridiculous :tup:

Did someone finally come out with a flex fuel sensor for our Z?

Not that I know of. But if you were savvy enough you could tune each individual map for different levels of octane, measure it when getting gas and just switch to the appropriate map. Take a lot of road tuning, or easy access to a dyno, to do but could be done.

Edit - sounds like the OP has something specific in mind so maybe he can educate us :tup:

oil less turbo
 

Hows your kit holding up? any issues with your setup?

turbo kit
 

I was thinking of doing a similar setup.

Not yet but Ecutec is working on it.

I will be using a flex fuel content analyzer with a gauge to show ethanol %. Zeiltronix makes a great kit. Each of the map will be tuned according to the %. Any standalone running e85 flex fuel sensor will take a tremendous amount of time to tune the compensation map, so Uprev will be no different. A 10% difference in ethanol content can be compensated by the ECU under closed loop, so exact % tuning isnt critical.

:tup: for Zeitronix, I've had great results with their products in the past

I looked heavy into Zeitronix for my setup. It was a close call but I ended up going with the Greddy multi gauge. They make good stuff :tup:

Must be good to be that hands on with this kinda build cause you saved yourself thousands in labor, KUDOS!!!

I've put over 1500 miles on it and the only issue is lack of traction lol. Not a single oil leak, well the turbos never needed any to begin with :excited:. My oil temp never gets above 220 after doing prolonged pulls and usually hovers 210 in stop and go traffic. I will get an oil cooler installed before summer, but it's suffice for now. I've checked the exhaust downpipes and no crack anywhere. I've been recently stressed out from buying a house, so hasn't been doing much tuning and updating the car. Once I move in the new house, I may sell a kidney to buy a dynojet and car lift :icon17:

Again awesome job and innovation on doing it yourself..

comp turbo
 

Which comp oil less turbo would you recommend for a single turbo kit? Any advice? Internal waste gate of course. thanks.

No company makes an internal WG setup for a turbo that size. You can look into this one Comp Turbo - Billet Wheel CT4-6465. It's triple ball bearing billet compressor wheel rated for 810bhp. They use Garrett turbine housings. Also COMP turbos are lighter than other brands due to the aluminum center housing.