I don't know to be honest...I know that we run them on our GT R rally car and they work really well. If you find some of the video's of our GT R rally car on Streetfire you'll hear them. I would look for them myself but my computer at work doesn't have speakers so I won't be able to hear it.

So my dealer told me to be super careful and not to hit any puddles to avoid risking hydrolocking...I can't say I haven't hit a puddle or two but no issues... Should I be as concerned as they made it sound I should?

sorry I'm great at goin OT.

A puddle large enough to hydrolock your G3's would be 3 ft deep. Dont worry about it.

If you hit a puddle large enough to submerge your G3's...I hope you're also wearing a snorkle!!!

Seriously though, no you'll be fine. Your dealer is just being extra careful, which is good. The G3's are mounted very high, you won't have to worry about that.

cool.. I didn't think it was the problem that they were making it out to be... thanks for the answer... can't wait to hear some news at the end of this week!!! I might just drive my *** out to Cali to talk to your "guy" that's holding this thing up if I don't hear something soon! lol

god hydrolocking is never the problem anyone makes it out to be. Experiment for you take an air filter ram it into a sink the next time you wash it with the coupler side up and see how much water gets in. I used to run a cone filter outside of my car (like above the hood) because well the whole supercharger sat above the hood and i drove it on days that seemed like the big man himself was pissing on my car and never had any problems because by the time the water makes it through your filter it mixes with air and becomes a fine mist that just burns right through. I could see a problem if you drove into a lake tho like that Bugatti in the videos.

Edit: and damn right the sliders don't work i wish they did but then i just wander on over to the NSFW thread

Stillen, what HP level did your engineers design the intercooler for? GTM's is up to 700 hp.

I'm just trying to get an idea for future expansion, if needed.

Hydrolocking can be a huge problem if the filters are too low. Take for example the Nissan 300ZX engines. We used to have those things come in reliably every winter because all of the cold air intakes mounted the filters directly in front of the radiator just a few inches above the bottom of the car. It never failed, every winter for about ten years we would have about 4 or 5 cars in our shop getting rebuilt motors due to hydrolocking.

I've also seen a few G's and Z's with hydrolocked motors due to the intakes being mounted really low. It should absolutely be a concern. If it wasn't a concern then companies like AEM wouldn't worry about including their by-pass valves in their intakes.

With that being said though, you have to submerge the filters in order for the water to be sucked up through the intake. You have to look at the engine like a big air pump, that engine starts sucking in air pretty hard when running and even harder when boosted. It can absolutely suck up water and damage the engine.

It's kind of hard to answer that question.

An air to air intercooler can pretty easily be rated to a certain amount of horsepower because you can measure the volume of air traveling through it efficiently.

However, with an air to water intercooler setup there are a few other things to consider. In the packaged standard form that the kit comes to you with no modifications, you can expect to support around 600 horsepower or so. However, if you decided to modify the system with a few minor little changes, you can support even more. An old trick used by many drag racers is to pack the coolant reservoir with ice. Obviously this chills off the water even further thus improving the efficiency even more.

Another option is to upgrade to a larger heat exchanger so that you can cool off the coolant longer thus lowering the temperatures further.

Because there are so many different things that can be done with an air to water intercooler we can't really put a blanket number on how much horsepower the intercooler can support efficiently.

What I can say is that we are using a heat exchanger which is larger than the heat exchanger that Magnusson supercharger's uses on their kit for the Corvette's.

How much horsepower do you want and what do you plan on doing with the car? Is this going to be street only? Road Course car? Drag racer? Dyno queen?

My car will be used on the street only, do you have a S/C kit if I want about 450whp? Nothing too crazy, just a complete turn-key kit.

As much as I want to answer this question I'm having to keep my mouth shut. Until we're ready to release more information and have dyno's to support our claims I can't definitively answer any questions regarding levels of horsepower.

Kyle, I want at least 400 whp. Are you going to give me at least 400 whp?

Kyle, thanks for the reply. The exact power goals are not yet known, but I would definitely consider pushing 550-575 on a built block.

I am aware of the ice trick as many Mustang drag cars used it. I dont plan on using that method as I am a road course kind of guy. I would like something a little more permanent. If you guys have a bigger radiator available, or know a place where I can get one, that would definitely be something I'm interested in. I'm sure a higher rate coolant pump would be needed, but its all still hard to tell until you guys release more information about the kit's components.

When it comes to boost, I would prefer to overbuild.

That's fair, but when you can start giving info, I'll need you to suggest which route I should take to achieve a safe power level on the stock block.

Kyle, if you wanna PM me I promise that I won't tell a soul... It'll just be our secret! This is the first time I have felt the need to contradict anything that M4A1 has said but I'm gonna be needing 450-500 Unicorns! lol lol lol (sorry prolly not that funny to some, but a few will understand)

I will also send you one of the best frozen pizza's that you have ever had in your life not playin, you name the toppings lol... A little bribery never hurt anyone right?

I think a couple of very interesting questions were just answered for us who read between the lines ;)

:iagree:

if you study RCZ's signature line... put it in reverse... then use WWII indian talker code to change letters to numbers... you will see the whp rating for the stillen supercharger ;)

^ smartass hahaha

Kyle,

Effect of the supercharger on our already poor cooling system? Now that you have a better idea of the size of the core, could we revisit the question of what size oil cooler we can fit along with it? Will you provide a relocation kit with your charger?

:bowrofl:

So I forgot to tell you guys... Kyle got the inner-cooler in today and I drove my car out to Cali... They got everything installed in my car today and it's sweet!... run's on E85UB... the trip home was awesome and this thing is a beast. Thanks Stillen! It blows the virtual 370tt out of the water down in St. Louis.

You forgot to mention the 57 miles per gallon that you called me and told me about!

It is not possible to give solid data on this yet because we have not been able to get our 370 on the test track yet. The development is being done on the G37 and the 370 was in the modeling shop getting the new fascia developed. Fortunately our new fascia is coming along nicely and will incorporate a second oil cool for those of you who want to really ensure ultimate cooling. However, not everyone will want the fascia so our good friends at the NISSAN North American proving grounds in Arizona actually dropped off an O.E. fascia for us today that we will use for our testing when we do our drivability tests and our track testing. That way all of our testing is done and data collected using O.E. equipment that everyone else will have experience with.

I can say that our engineers have definitely taken a look at the additional oil cooler's and Steve has said that he wants to return the larger race oil cooler with the intercooler. So the GOAL is definitely to have plenty of cooling to all of the vital components.

I can't say too much but I am confident we will be able to supply you with a kit that will meet or exceed all of your goals. Shoot me an email and we can begin planning your build.

kmillen@stillen.com

Email sent!

Well, I will be out of town until the 21st so I wanted to give an update on our development before I leave.

1) Things are going great! We are right on track and we have made some big leaps ahead over the past week!

2) We spent last week dyno testing the car without the intercooler and the numbers are awesome!!! We have a few things holding us back from reaching some pretty magic numbers but we're still getting close! The car we're testing with is an automatic G37 coupe with heavy 20" show wheels...So there is a lot of additional parasitic loss through the heavy wheels and the auto trans. We can't wait to get it on to our manual gearbox 370Z. Also, the intercooler manufacturer has had some hiccups and they weren't able to get us the core until today. We CNC machined the end tanks and they are out at our fab. shop getting welded up today. Yes, that means we were getting great numbers without the intercooler, and with an auto trans and heavy wheels!!! Just wait until we can start getting more aggressive with the tuning when the intercooler is in there and we can put the kit on the Z with less parasitic loss!!! This thing is going to be awesome!!!

3) One of the concerns we had was deflection of the mounting bracket causing belts to slip. I am very proud to report that our engineer's were focused on this and thanks to their creative mounting solutions there is absolutely no movement on the mounting bracketry. The blower is sitting perfect and there is no deflection at all. On some of our previous kits we used cast aluminum mounting brackets with the Vortech kits but on this one we have gone with a water jet billet aluminum mount so that there is a lot more material in there so a lot less movement.

This week we will be finalizing the tuning and instructions. Next week we will begin our endurance testing. We will be prepared with pricing and horsepower information very soon.

We are still right on track for release around the end of February, beginning of March!!!

By the way...

We are using the Vortech V-3 supercharger. One of the great things about Vortech is the ability to easily change the internals and really crank up the power. The blower that we're using is the same blower that one of our good customer's is using on his 7 liter Dodge Charger pushing over 700 RWHP.

Our standard kit obviously wont be pushing that much power but for those of you interested in building the motor and pushing the limits, we will be able to to support your needs!

Kyle, thanks for the update! Sounds like a great kit.

Thanks Kyle... Can't wait for the 22nd... Expecting a major update! lol Have a nice vaca.

Thanks for the info, Kyle. Can't wait to see more in a few weeks.

:excited:

let me just clarify so we are all on the same page here a good number is 400, a great number is 450, a "magical" number is anything over 500. That said can we hold you to great and magical right now?:tup:

Edit: actually if i buy this thing in the inter cooled race trim i expect magical to godly out of the box

400whp is a good DD number, but i'd hope the TQ numbers are almost even, if the power was around 450, i'd be ok with seeing TQ around 350-375

Kyle,

You mention that 2 things worth doing to the car that will prep it for a supercharger are the clutch/flywheel replacement and a cat-back exhaust upgrade to a 2.5". I was wondering about the cats themselves - worth replacing? You also mention not to do exhaust headers - which I understand means that a full exhaust is not necessary (as of right now). Are high flow cats unnecessary? Thanks for your advice.

Kevin

The Tq numbers will prob be about 350, I can't see this thing making 375tq, that's almost 100 more then a car with full bolt-ons. It would def be nice tho...;)

When we do our testing it will be with the standard cats and exhaust manifolds. I'm sure we will develop the tune further with the headers and high flows but to start with we won't have that informaiton immediately available which is why we are recommending that no one modify those parts just yet.

Keep in mind if you plan on purchasing the CARB legal supercharger then replacing the cats could and most likely will cause the car to fail inspection.

Kyle, any new info on the kit? Are there any pics of it installed in a 370Z, or not yet? I know Stillen is going to release info in march, but the S/C threads have been quiet lately & it'd be nice to get some new info. Thanks

All of our development is being done on the automatic G coupe that we have. We will be switching the kit over to the manual gearbox Z in a few weeks or so. The only differences between the two kits will be slightly better power out of the Z due to the manual gearbox and lighter wheels and a few mounting brackets. Everything else will be the same so pricing will be equal.

I dont know if this was covered yet, are you doing the testing with the Stillen exhaust or stock?

Kyle answered that 3 posts above yours...