STILLEN 370Z Supercharger System - Announcement!!!

Chris@FsP · 03-19-2010, 05:05 PM

Quote:

Originally Posted by stormcrow

Checking for YouTube videos now. Thanks for the idea. May hit up RedTube while i'm looking at tube sites.

The "bog" (maybe not the best usage of the word, but was trying to portray a mental image) is from when the throttle plate opens until the RPMs start to build. The difference in an N/A car vs the centrifugal SC car is noticable (at least it was on my Vortech'd G35) in this moment as the parasitic drag is at its pinnacle due to no boost.

stormcrow · 03-19-2010, 07:43 PM

Quote:

Originally Posted by FailsafePerf

Wow at the results when searching that site for "blower."

RCZ · 03-19-2010, 04:56 PM

Quote:

Originally Posted by Phimosis

RE: noise made by vortech V3 blower; On Youtube there are quite a few extended user videos of V3 blowers on G35's. In car, out of car, stock exhaust, aftermarket exhaust. It's a good starting point. I'm sure Stillen wants to get videos up on Youtube for promotional purposes just as badly as we want to see them.

RE: Parasitic drag of S/C and revving of engine; Revving of engine is based on (net torque) / (moment of inertia). For those that are not familiar with moment of interia, it is the rotational mass and how far from the rotational center the mass is placed. increasing the distance from center increases the torque needed to accelerate the object. In the case of a SC engine, the bulk of the rotational mass is the crank, pistons and rods. The moment of inertia, though is heavily influenced by the flyheel because of its large diameter. The moment of inertia of the supercharger is low because of it's small diameter, so the supercharger's biggest imapact is on net torque, which is (torque made by engine) - (parasitic loss). With all of this said, off idle the SC is not making boost so net torque is lower than stock and decrease the rate of revving. by 2,000 rpm or so the blower will make some boost and net torque will be higher than stock and boost will build to redline, so the increase in net torque over stock will increase to the redline as well. The end result: near stock revability from idle to about 2,500 rpm, then explosive increase in rate of rpms gained all the way to redline. The sensation of bog is not really "bog." That implies that when you open the throttle, net torque decreases. That does not happen. Torque will increase, but increases at low rpm will not be impressive. You think it's bogging because you're expecting 350 lb/ft of torque and 8psi of boost at 2,000 rpm like you get at 5,000 rpm.

Phi: Very informative reply and well explained! +1 for you sir. Its not so much that I was expecting 350lb/ft at 2kRPM. My question was more geared towards rev matching and rpm drop between gears. I wanted to know if the fact that there is an extra belt/sc added to the system would cause some parasitic drag, kinda like the A/C system does. I know its definitely not the same, but I guess with the boost being made either way it makes sense that it would shoot to redline explosively. I have lots to learn about superchargers and I'm loving this whole thing. Your answer covered it all and more. Also good call on the youtube, I will check those out. Thanks again.

Kyle@STILLEN · 03-22-2010, 12:54 PM

Quote:

Originally Posted by RCZ

Which car for the race car? a GTR?

It's a 370.

RCZ · 03-22-2010, 02:38 PM

Quote:

Originally Posted by Kyle@STILLEN

It's a 370.

Awesome news. That means new parts and lots more R&D on this car. I was hoping it was a 370z! I'm really looking forward to the results of that, more than likely some of the stuff you have to come up for the race car will trickle down to us common folk.

370Zsteve · 03-24-2010, 09:03 AM

Quote:
Originally Posted by RCZ

Which car for the race car? a GTR?

Quote:

Originally Posted by Kyle@STILLEN

It's a 370.

Well now that will come in handy as R&D for the rest of us!

RCZ · 03-19-2010, 09:59 PM

Nothing new there, but cool to see it on motortrend.

kannibul · 03-20-2010, 12:11 AM

I don't mean to sound like I'm trying to poo on this thread, but the manifold, while an interesting approach - thorws me a bit since I'm more of a stock appearance kind of guy. The GTM kit appeals more in that respect...

Also, in terms of either the Stillen or GTM SC kits, with both of them using centrifigal superchargers, how would that compare vs the GTM TT kit, in terms of gains over the whole band and normal or "spirited" driving conditions - not just drag racing (as a dyno emulates)?

Chris@FsP · 03-20-2010, 12:58 AM

Quote:

Originally Posted by kannibul

I don't mean to sound like I'm trying to poo on this thread, but the manifold, while an interesting approach - thorws me a bit since I'm more of a stock appearance kind of guy. The GTM kit appeals more in that respect...

Also, in terms of either the Stillen or GTM SC kits, with both of them using centrifigal superchargers, how would that compare vs the GTM TT kit, in terms of gains over the whole band and normal or "spirited" driving conditions - not just drag racing (as a dyno emulates)?

With twin turbos, you're going to get full boost and a huge rush of torque early on (which is fun), as opposed to the powerband of a centrifugal charger, where the power and boost comes on in a more linear fashion.

NewYorkJon34 · 03-20-2010, 09:53 AM

Hey Kyle, I'm alil confused with tuning the S/C. Is the supercharger going to come with a basic drivability tune, or do I need to have it tuned right away after installing it? I just don't wanna install it then have something go wrong because I don't have it dyno tuned right away.

shumby · 03-21-2010, 12:24 AM

Say what?

RCZ
This message is hidden because RCZ is on your ignore list.

simota1 · 03-21-2010, 06:31 PM

sub ******* scribed!!!!! i was wondering why the other thread was already not showing on my user CP lol

Kyle@STILLEN · 03-22-2010, 12:53 PM

Quote:

Originally Posted by NewYorkJon34

Hey Kyle, I'm alil confused with tuning the S/C. Is the supercharger going to come with a basic drivability tune, or do I need to have it tuned right away after installing it? I just don't wanna install it then have something go wrong because I don't have it dyno tuned right away.

The tune that the car comes with will be 99.9% dialed in however some people will want to get an extra one or two horsepower and maybe adjust their a/f a bit. However, the tune itself will be good from day one and won't need to be re-tuned later on.

Quote:

Originally Posted by G35s-Q8

I would like to see all those parts laid down on a white background to see what's included with the kit, maybe they you can swap the air to water intercooler with a larger setrab core cooler and add electric fan to it and freeze the water inside it to get maximum cooling, just an idea though.

Edit: do you have thermal gasket between the stllien intake manifold and the lower runners, just to help in preventing heat transfer even if it was for a little bit.

We did take a picture of all the parts on a bit white sheet all laid out nicely just like we've done with our other supercharger systems in the past. Unfortunately, the picture really sucked. There was way too much white and everything looked blown out and we only had the parts for about 20 or 30 minutes before giving everything back to engineering so they could keep on working. We plan on retrying this photo as soon as we have all of the production pieces though.

There is a gasket on the bottom of the manifold.

spearfish25 · 03-22-2010, 02:51 PM

Hey Kyle or Josh,

I saw you're likely going to have a 3yr/36,000mi engine warrany with the kit. Will the warranty be honored by any Stillen authorized installer? I'd be much more likely to do this if I can have my local Z shop install and perform warranty work.

Kyle@STILLEN · 03-22-2010, 03:12 PM

Quote:

Originally Posted by RCZ

Awesome news. That means new parts and lots more R&D on this car. I was hoping it was a 370z! I'm really looking forward to the results of that, more than likely some of the stuff you have to come up for the race car will trickle down to us common folk.

I don't know if this first car will have much, if any, R&D benefit. I can't say too much right now but I will elaborate on this once the project is complete. I don't want to give any information before Nissan is able to. I do have plans for at least one more car though. The next car will have TREMENDOUS R&D value and will be pushed hard and far. I don't have confirmation that Nissan wants to do it yet as it won't be cheap, but it will be pretty insane!

Quote:

Originally Posted by spearfish25

Hey Kyle or Josh,

I saw you're likely going to have a 3yr/36,000mi engine warrany with the kit. Will the warranty be honored by any Stillen authorized installer? I'd be much more likely to do this if I can have my local Z shop install and perform warranty work.

We are trying very hard to carry over the same warranty that we had in the past. That warranty was pretty easy. As long as the supercharger kit was installed by an ASE certified mechanic, you're covered. Doesn't matter if it's your local high performance shop, dealership, or your uncle. As long as an ASE certified technician does the work, you're covered.

03-21-2010, 12:24 AM	#11 (permalink)
shumby Captin Canuck Join Date: Dec 2008 Location: with your mom Age: 45 Posts: 6,288 Drives: your sister Rep Power: 237	Say what? RCZ This message is hidden because RCZ is on your ignore list. __________________ Originally Posted by SAM@GTM Engine detonation is not normal and it should never never happen, and whoever told that need to do something else for living . Sam

03-21-2010, 06:31 PM	#12 (permalink)
simota1 A True Z Fanatic Join Date: May 2009 Location: Dededo, Guam Posts: 6,642 Drives: solid red 370z 6mt Rep Power: 405	sub ***** scribed!!!!! i was wondering why the other thread was already not showing on my user CP lol __________________ TOP SECRET/POWERHOUSE AMUSE/ARC/DAYTONA RACING/VARIS/MINES/GANADOR/J-LINE/WORK EMOTION CR KAI/GT SPEC/CARBON SIGNAL/ZOOM ENGINEERING/ CARBON FIBER ELEMENT/STILLEN/**

03-22-2010, 02:51 PM	#14 (permalink)
spearfish25 A True Z Fanatic Join Date: Mar 2009 Location: Naples, FL Posts: 4,117 Drives: to work Rep Power: 1857	Hey Kyle or Josh, I saw you're likely going to have a 3yr/36,000mi engine warrany with the kit. Will the warranty be honored by any Stillen authorized installer? I'd be much more likely to do this if I can have my local Z shop install and perform warranty work. __________________ 2013 Cadillac V-Wagon, RIP Z Last edited by spearfish25; 03-22-2010 at 03:01 PM.

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03-19-2010, 09:59 PM	#7 (permalink)
RCZ A True Z Fanatic Join Date: Nov 2008 Location: Miami Posts: 6,403 Drives: '09 370Z Rep Power: 1119	Nothing new there, but cool to see it on motortrend.

03-20-2010, 12:11 AM	#8 (permalink)
kannibul A True Z Fanatic Join Date: Jun 2009 Location: Jenks, OK Posts: 2,281 Drives: 370z Touring/Sport Rep Power: 267	I don't mean to sound like I'm trying to poo on this thread, but the manifold, while an interesting approach - thorws me a bit since I'm more of a stock appearance kind of guy. The GTM kit appeals more in that respect... Also, in terms of either the Stillen or GTM SC kits, with both of them using centrifigal superchargers, how would that compare vs the GTM TT kit, in terms of gains over the whole band and normal or "spirited" driving conditions - not just drag racing (as a dyno emulates)?

03-20-2010, 09:53 AM	#10 (permalink)
NewYorkJon34 A True Z Fanatic Join Date: Jun 2009 Location: Naples, Florida Posts: 3,041 Drives: 09 Fairlady Z Rep Power: 1065	Hey Kyle, I'm alil confused with tuning the S/C. Is the supercharger going to come with a basic drivability tune, or do I need to have it tuned right away after installing it? I just don't wanna install it then have something go wrong because I don't have it dyno tuned right away.