240Z Turbo
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Posts posted by 240Z Turbo
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I would recommend that if you are going to think about a GT3076r then you actually should consider running GTX3576r. The GTX compressor wheel has similar inertia to the old wheel, but flows considerably more. From my experience on the EVO there is no loss in spool going to the larger turbine wheel (35r vs 30r) and gains of 30-40hp can be achieved. I am not saying the stage III to4e is a bad option and is definitely more cost effective, but there are better options from a performance standpoint. If possible, I would also try to utilize a twinscroll setup to maximize spool.
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Get the maxima bell housing
I used a tranny from a starion because it held more clutches, but perhaps the 300zx unit would as well.
biggest problem is getting the proper converter built
Ran 11.2@129 with this tranny
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The GTX3576r is likely a better choice as opposed to the GTX3076r. Better match of the turbine wheel to the engine and compressor wheel.
Please reference my results between these turbochargers.
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I made approximately 10 of those manifolds and sold them for ~$300. This was more for fun and to support the community. As far as the tapered runner manifolds I only made one of them, but I did also make one with velocity stacks.
For the manifold on ebay, I took a stock manifold and then cut off the runners about 1.5" off the flange. I then overlaid the stock gasket and traced the port size. Using a boring bar I ported the runners to match the stock head gasket. I then took a similar ID aluminum tubing to fabricate new runners and then made the plenum.
I think Rick is correct that we leaned out AFR by ~0.6. However, I think the car also picked up 4mph in the 1/4 during the SEZ event. Good Times!
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Is that pan one of the ones I made a few years back? Funny, I have about 10K in RB26 parts sitting in my garage that need to be put to use. Perhaps I should sell the NSX and give the Z one more try.
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Fellas,
I've decided to go with an RB swap and single turbo.
what place does everyone recommend for rb26dett long block, sensors, manifold and "complete" harness?
Thanks
Hooove
Is this Hoover from turbohoses?
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not mine but another 10 sec z..
He is running a modified 3N71B tranny and nitrous
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If TimZ would take his car to the track he would definitely out MPH my old setup.
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John,
Thank you for the heads up and nice run. Whomever built that setup is pretty damn good
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Wow, my own thread!
For the past several years I have focused my efforts on work and home, which did not allow me to focus on cars, selling turbos and custom fabrication. I started SpeedShopThagard to highlight my projects and to sell good quality turbocharges to my fellow Z brothers. This was fun and gave me a bit of extra cash to support my hobby and at no point did I rely on this for my family and is the reason my prices were always cheaper.
With that said, I believe I have reached a point in my life that I want to once again pursue my passion for cars, which drove me to purchase an Acura NSX. This is good because it forced me to hook up my welders in preperation for my Turbo NSX project, but it is bad in the sense that I no longer own a Zcar.
Anyway, I will make it a point to at least post pics of my new project and perhaps i will purchase another Z in the near future.
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I am selling my fully built CNC head to pursue another project. Will update in for sale section, but head can be seen here...BTW, the head pictured is actually mine.
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I don't get much time these days to do anything but work. At present I am in Holland for 2 weeks working. As Tim said the material was Hastoloy X and was chosen for its high temperature performance. At the time it was just an experiment and I had much more free time and complete access to a machine shop. That piece took quite some time to make as the flapper valve, shaft and even the bushings were machined from Hastoloy X. It was also a pain as the tolerances needed to be kept in check so the exhaust wouldn't leak past the bushings. I also think the other design might work, but does not package very well. As far as it flowing better I would doubt there is much difference. Perhaps one day I will have time again to enjoy my passion for turbocharging.
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I ran a 60-1 P-trim .58 and the spool was very good at ~3600rpm
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I've been outdone again!
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Such a nice setup and you skimp on the oil filter. Use the WIX brand or the NAPA Gold. You can also use the K&N, but it is just more expensive. FRAM blows!
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dude....just to tell u our 800rwhp supra doesnt have that big of a air cleaner...can u say over kill??? lol
It should and for 800hp you should be using an air cleaner rated for ~1200cfm. I am glad to see that you ran such a large air cleaner as such attention to detail for your project will make the difference. Too many folks choke themselves by running an air filter that is not rated for the numbers they are trying to make. BTW, I saw the pics on the other forum and your project is impressive. Good Luck.
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Nice job Tim!
I rode in the car a few weeks back and it definitely packs a punch.
BTW, I still hold the torque record 509ft-lbs@wheels:)
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I originally made 10 of these pans several years back and was selling them for approximately $300. I do have one remaining, but it is for my RB26/240sx project.
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BTW, this race was against a Moostang Cobra with the supercharger. All of his buddies thought I was going to take a beating and were mocking my car. I ran more mph in the 1/8th than this guy did in the 1/4. I do have a video on VHS that I need to convert.
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I think that's faster than James' 240z on NOS...
18psi and 125 shot of nitrous
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I was in Detroit on Monday and spent some time with Tim and his family. I had an opportunity to ride in the car before the rain came and it is fast. First and second gear were useless once boost hit, but we were able to get a few good pulls in 3rd gear on the street. The car pulls very hard in 3rd so I don't think the numbers he posted are too far off.
The setup is exceptionally clean and the detail in Tim's setup is apparent as everything has a place and purpose. However, at this point there is not too much more room for anything else.
Thanks for you hospitality and the ride:)
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You can also try the non protruding plugs to see if they work better. I used to run them on my Z.
BR7-ES
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I have a v-band discharge flange available for the 42R
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Show Off Your Engine Bay! Pics Wanted, L-series
in Nissan L6 Forum
Posted
That setup looks awesome and I am glad to see people thinking outside the box.