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Single Turbo
http://lisupras.com/turbonetics.jpg
will be at sema this fall and will be onsale early 2005 headers are not replaced cats are removed -Dave http://lisupras.com/daveG35driver.jpg |
Re: Single Turbo
i wonder how efficient that thing is gonna be, especially since the charge pipe runs right over ther turbo b4 it gets to the intake plenum. should be interesting though.
04 DG/G/6MT/Premium/Nav/Clear Bra Bone Stock...to be continued... "You kill mah brodah, now I kill you!" - some old kung-fu flick |
Re: Single Turbo
The temperature of the charge pipe is going to have very little effect on intake air temps. Considering the volume and speed of the air in the pipes at full throttle, the dwell time will be small. Secondly, the surface area to volume ratio is quite low.
Is this kit put together by Turbonetics? I am thinking it is with the turbonetics imprint on the turbo and the spearco I/C. Some additional technical specs would be nice. |
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Re: Single Turbo
That's not installed is it? I doubt it... sounds cool. I'll wait to hear about this before I purchase my Stillen Supercharger. Hopefully by next summer I'll have some sort of FI.
Thanks - Joey Avino https://g35driver.com/rides/spec/pix...1061320203.jpg |
Re: Single Turbo
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Re: Single Turbo
They just posted a dyno of this turbo at My350z.com
Couldnt afford it when young...gonna play when Im old |
Re: Single Turbo
A direct link would be nice...
Thanks - Joey Avino https://g35driver.com/rides/spec/pix...1061320203.jpg |
Re: Single Turbo
A few points about this setup.
a) it is intended to be a value vs. performance oriented kit, which is easy to install/de-install. b) It will not provide the quick spool times when compared to any of the TT configurations. c) the "largest" impasse to good spool performance is the "long" exhaust plumbing between the head exhust ports and the snail. This is a fact of geometry as to were a single snail must be placed beneath the bonnet. So I personally characterize this system as an "exhaust driven Vortech" . It is not and never will be perfomance comparable to any of the TT systems. If you look at the shape of the non-flat TQ curve you will see what I mean. It is what it is. |
Re: Single Turbo
I can't get into my350z.com to see the dyno. Nor do I know any specs. Can anyone chime in with them?
As far as spool, while heat can be lost from a cross-over pipe, this is not the first time it has been done. And while it's not optimal, it's not going to kill power delivery. If spool time is really that much of an issue here, I'd probably be looking at the size of the turbo itself. The turbo in the pic appears to be pretty big. |
Re: Single Turbo
You can shrink the snail , improve the spool and reduce the peak hp. It's always a trade-off, However; in this case the Exhaust plumbing is the biggest detriment to spool up. Its not just heat ls loss, its exhaust transit time and gas compression. You will see, regardless of the snail chosen it is at a huge thermodynamic disadvantage on the VQ configuration.
On another point, this kit does not ,and will never pass an emmissions test CARB or otherwise. Besides the fact that it requires the removal of the CATs , even if the CATs were somehow left intact the cold start light up time would be grossly violated. Again , it is what it is , no ofense to Turbonetics, you can't turn "one apple into two oranges" in this application. It is intended to be a cheap "for off road use only :) " kit. |
Re: Single Turbo
all true about comparing it to TT, except for up top end. a bigger single turbo will definitely go to town on the little twins with respectable amounts of boost. a lot people simply prefer a single setup due to install and amount of piping and pieces (and price).
the charge pipe sitting over top the turbo is kind of silly, somewhat defeats the entire point of it being intercooled. hmm. October 2nd - Jacksonville, FL G35/350Z Meet |
Re: Single Turbo
You're not going to lose 900 degrees Celsius that quickly. While having a turbo close to the exhaust ports is ideal, the biggest factor here will likely be the actual amount of exhaust energy. While temperature is a factor, so is the flow of air. 800 degree celsius at 30 lbs/min carries a lot more exhaust energy then 900 degrees celsius at 15 lbs/min. With half the cylinders reaching high temps and the other half only losing a relatively small amount, spool up should not be terrible.
Few turbo kits in general actually have CARB EO numbers. And I don't think Turbonetics is claiming it to be a twin turbo. It should be quite competetive still. And I didn't realize being cheap was such a bad thing. For the most part turbonetics products are pretty high quality stuff. About the only thinkg from then I don't trust are their wastegates. I haven't heard anything about their new wastegate though in terms of reliability. |
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