Preparation for the STILLEN supercharger

zinistr

Kyle - a release date seems overdue here. What's the real story...by end of March?

370z owners are going other directions every month this lags...come on, help us sell some of these for you.

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2009 NISMO Edition 370Z, Silver #196

Kyle@STILLEN

We are right on target with our release date of the end of February to the beginning of March. I actually went on vacation on the 10th and just returned yesterday so I got the full download of where we stand on everything and I'd like to pass all of that information along to you guys.

For starter's a little recap on what has happened over the past few weeks. As you all know we had a delay from our intercooler supplier. They lagged on getting us our prototype but this actually turned out to be a good thing. Our initial design included a cast aluminum end tank which mounts to the front of the intake manifold. Because of the delays our intercooler supplier caused we had them simply send us the core and we had our in house machine shop prototype a couple of end tanks for us. Then we sent it all to our in house fabrication shop to be welded. Well, they turned out amazing!!! Nothing is sexier than machined billet aluminum and these things are gorgeous!!! So, we have actually decided to incorporate the machined billet aluminum end tank into the final design.

After the intercooler was installed the next thing to find out is if the intercooler would cause a boost drop across the face of the cooler. We are proud to report that we did not lose any boost pressure at all. We are running identical boost pressure before and after the intercooler.

Next we needed to find out how efficient the intercooler is at cooling and OH MY GOD!!! It is actually working better than we imagined. We have a temperature sensor right at the exit of the supercharger where the air is hottest and we have drilled the manifold to mount an additional sensor at the bottom of the manifold to measure air temperature directly before the air is taken into the engine. The difference in air temperature is truely impressive but most impressive is the consistency. Run after run after run the air temperature stayed nice and low.

One thing that all of us (including the forum members) have all been concerned about are oil temperatures. I am extremely proud to say that our test car (G37 coupe with auto trans.) is currently equipped with the intercooler, race oil cooler, and transmission cooler. And, there is still plenty of air flow to the radiator.

As Josh mentioned the tune has not been finished as of yet and we are laying down well over 400 horsepower at the wheels on a very safe amount of boost on an automatic gearbox car with large, heavy show wheels. You might say, who cares what kind of wheels are on the car? Well, we performed a test a few years ago and we actually found that our Nissan Titan truck lost 30 horsepower when we removed the O.E. 18's and installed the big, heavy, 22 inch chromed show wheels. The additional weight of the wheels require that much extra power to turn.

We have begun ordering parts and started the machining so that we are ready to ship as soon as possible. We do plan on offering an early bird special for those early adopter's who want to pre-order their kits and we hope to have that information ready for you all very soon however we do not want to release any information on price with out having the supporting dyno's and video's to give everyone all of the information.

We have finalized the two primary kits, street and tuner, and those prices are set. Obviously we're not going to release the pricing without supporting dyno's and video's. and we are discussing the best way to handle the race kit.

RCZ

Nice, good update and I'm on the boat for the early bird race kit

What kind of dyno are you using for testing and what did the stock g37 pull on it?

Red370

Stillen: 1

GTM: 0

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Buddy Revell

Great info, Kyle. Have you decided to go with a new engine cover like you mentioned a while back?

Kyle@STILLEN

Absolutely!

We might have a couple of different options for this so it will probably be an item that people can purchase seperately. We'll probably partner with a CF manufacturer and for the less expensive route we make something out of urethane. Right now the priority is performance and funtionality. We will worry about the engine cover a little later on but yes there absolutely is a plan on covering up those ugly valve covers and what not.

Xan

Nice update!

Hoping for a good early bird special.. As then I'll just take the plunge...

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Kyle@STILLEN

I decided to run out to the dyno really quickly to take a quick picture of the temperature sensors I was telling you about. The yellow wires are coming off of the temp. sensors. They will not be included in the kit because they are just a datalogging device for our testing. So don't worry about them being strewn across the engine bay! That's just for testing!

Also, the intake pipe looks like crap...We know this...It's a prototype...We actually tried to clean it up a few months ago to make it look more presentable and it ended up looking like crap LOL. The production piece will be polished and will look great.

You can also see the intercooler reservoir bottle has been mounted. It does a good job of covering up some of the valve cover but we will have a nicer piece developed when everything is completed.

Attached Images

supercharger temp sensors.JPG (367.7 KB, 492 views)

Buddy Revell

Thanks for the pics, Kyle. Any ETA for the dyno results?

m4a1mustang

This news has me butt cised.

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Josh@STILLEN

Ummm... Yea?

Xan

Picture looks great!

Is there a specific reason that there is a straight connection into the resevoir and not an elbow piece?

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Kyle@STILLEN

Probably just because it's still in prototype phase. As you can see there is enough room to cut down the hose so you could tighten that up if you wanted to.

Xan

Yeah, I should just wait until it's done.
I was just wondering if it was for a reason I didn't yet know.

Thanks for the updates, one thing is for sure, this thread gives extra trust in that you guys know what you are doing and not taking any changes with our engines.

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G37Sam

I believe that's the benefit of an air-water intercooler? An air-air would have a pressure drop across it since the compressor is what forces the air through it. Yes I've been doing some reading

My question is though, does that intercooler use the same coolant from the radiator? Or does it have its own supply? And what pumps the coolant through that intercooler? Sorry for all the questions Kyle

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