Actual reviews/results on Stillen SC
 

Hi Guys,

I'm considering having a Stillen Supercharger put on the 370Z here.

I know the website says the car makes 500hp with this addition, but I'm curious what people have actually dyno'd, actual 1/4 mile time slips and actual reveiws on the performance. Streetability handling etc.

Its basically between Supercharging my 370Z or going over to an LS3 C6 and going Intake/headers,Exhaust/Cam.

I haven't done the 1/4 with my car but it's a blast on the street.

This forums has a final results thread I believe for finished numbers. Might wanna look in that thread. Stillen kits make around 400 give or take. A LS3 with those mods will be way faster than a SC Z.

Check the finished builds thread. I ended up putting down 400, I haven't been boosted long but I love it! I haven't tracked her yet. I get awesome gas mileage. I haven't found anything negative.

Yep and we have a 1/4 mile thread, not as many with SC/TT/T but a good list: http://www.the370z.com/track-autocro...ack-times.html

Stillen's current kit is rated at 500HP at the crank and most generally see 390-410whp depending on dyno, tune, and location.

Like everyone else has said 400 WHP or so I made 412 and chased 500 WHP and motor quit at 457 WHP. If I had that choice sorry to say but I'd be getting the LS3 just me but long long term more reliable . No one has had their SC for years or up wards of 40k to start low .
The LS3 is factory ready to be fast out VQ is not yes you can make 400 WHP on the Stillen sc hell you can even make 600+ WHP on a twin Tubro set up but for how long and how many miles no one really knows yet. I love my G and the VQ just not good for BIG power

I hope your wrong about the 40k thing, I have 16k on mine in just under a year!

Please for the love of god listen to what I'm about to tell you. If you think you will be content for a LONG time with low four hundred numbers then by all means the stillen kit is awesome. I have the stillen kit with every other performance mod stillen makes including the 9lb pulley and a custom tune and I'm making 440 at the wheel which was really cool for like a month! Now I crave .... No I must have more power! So take it from me if you think you are the trype to be content then plan on just that from the stillen set up... Contentment. If you crave big power.... Swap it! That way when your bolt ons no longer make your nipples hard you can boost the mother******

Thanks guys. I've never owned anything that made more than 400whp but I think that would be plenty for me. At the same time I know the ls3 has better potential to go 500+hp.

How long? So far, at least 3 years and 40,000+ miles (over 60,000 on the engine now)! Install and tuning is critical. I would say that my engine has now reached the miles where even cars that come stock with this type of power can start to run into problems.

Two words: TWIN TURBO. 630hp on E85. /end thread

Depends on how much fun factor your after. 400 will be fun. 500+ with a turbo will be much, much more fun.

I can vouch for that.

I've come to the conclusion that if you just want a little more punch and all you do is drive your car around town then a SC isn't a bad way to go. It is cheap and relatively easy. 400-ish hp is fun when your options for said fun are limited.

For example: If I got an AWD G37 for winter driving I would want a SC in it for days that there was no snow.

But if you have plans on tracking your car (track/autocross/drag) at -all- then there really is no better option than turbos. With a SC you'll be a fast V6. With twins you turn the heads of V8s, even V8s with SCs.

V8 SC power in a V6 chassis...hell yeah.

Good luck!

I can also vouch. Had a 350 with stillen roots blower. Fun for a year. Added a turbo to forcefeed the roots. Fun for a year. Bought a 370. Fun for a month. Put a twin scroll turbo on. Fun as hell!!! Got hungry. Built motor on way. Going back to 400whp.....impossible.

You changed your avitar!

OP, you need to really be honest with yourself as far as how you will be using the car, and what your HP experience has been. I've owned several 600hp+ cars in the last decade (Z06's and a Viper), and I can tell you from experience that you really can't enjoy that kind of power on the street. Yea, you can blast from stoplight to stoplight all day, but that gets old (and draws a lot of unwanted attention). Are you going to track it, autocross it, race it?

After selling my last Vette and buying the Z, I can truly say that I can fully enjoy the power this car has, and still avoid most tickets. I'm tempted to go the S/C or turbo route, but know from experience that I will never get my money's worth out of it.

Do what makes you happy, but make an informed decision.

I had a Stillen SC on my 08 350Z. It's the same kit. Knocked 1 sec off of my 1/4 mile time by adding the SC and better tires. I knocked off another 0.3 sec by doing a pulley swap and upping the boost from 8-9 psi to 13 psi.

13.8 sec stock with street tires.
12.8 sec Stillen (8-9 psi) with better street tires.
12.5 sec Stillen, pulley swap (13 psi), and better street tires.

I know my times are not fast. But at least you can see the gains. I'm not very experienced at the track.

Good to know it knocked a full second off. I'm pretty sure I can pull off a low 13 with my car the way it is, so a low 12 or 12 flat supercharged would be perfect!

when i had the stillen supercharger i was trapping 116-117 in the 1/4mile
my 60ft was trash but the trap was almost constant

This is the sole reason I ended up going with Twins. I was about to pull the trigger on an SC but knew I would not be content with low to mid 400s.

If your main purpose is to hit the dragstip then the C6 is a much better platform.

My car will probably never see the track but with the Stillen SC it sure is a blast to drive around town :) I don't care for 1/4 mile times or high HP numbers, just wanted bit more enjoyment for my daily. TT on a daily would probably get me in trouble lol. I am pretty satisfied with my setup, I sure love the look/sound and performance of TT's though. Props to those who got them...One day ;)

I did! Wasn't sure how many people got the reference.

*Edit: I put it back...It's been bugging me since I changed it! I'm a dork. ...NO LIKES because I'm a dork! NO!

Is there lag with the Stillen SC? One reason I bought the Z was to get the NA feel, tired of the lag from turbos, especially on curvy roads. I would like to maintain that NA power delivery feel, if possible.

No lag like a turbo has but it feels a little different than NA because from 4500rpm and up the power kicks in more.

Drives like NA till about then maybe a little earlier like 3800 or so then .... . :driving::tup:

I guess your right, it's earlier than I said.

And if you do the impeller upgrade its more like 3k mine was way down there :tiphat:

Does it feel the same as lag though?

No, on the SC it is a more gradual pull than a turbo which is more instant at a specific RPM.
With the SC you run up to about 3k or so and then start building boost, but boost is built equally (for the most part) over the rest of the power band. So it becomes a very linear graph, it becomes just a 'faster' Z.

Perfect explanation :)

No lag at all and here is my dyno showing showing what dreamer is saying about it being a linear graph.

I'm not being a smartazz, but if you are concerned with "lag", you should really consider riding in one of each. There is no lag in either one. At 3500 rpms and below, they both felt stock to me. Then from 3500 rpms on, the supercharger continues to pull harder and harder to redline. But the turbo from 3500 on kicks you in the azz and gets sideways making you question your sanity. You can tailor the powerband of a turbo to suit your driving style. But, until you rebuild your motor, you still have an 11:1 3.7L V6 getting you from idle to boost.

Twin Turbo's for me one day, hence my user name....LOL I am not even going to waste my funds on intakes or such. I am going to get my warranty's worth first though. I gave it up when I modded my diesel, not this time.

That is the one piece of advice I try to give people who just got the car and plan to go boost in the future.
Sit down and plan out what you want, no need to double pay for intake or labor, I went through all the NA stuff and threw money away in the end because I added a SC.

I did the same.

Now scrap it all and go turbo! All the cool kids are doing it.

I think the next car I buy needs to be fast off of the showroom floor.

:bowrofl:
I don't really need any more power, if I do anything more with my SC it might be a smaller pulley (though with the whole GTM fiasco that might not happen) and e85.
I actually have a turbo car, just sitting & needs some work, if I want that feeling.

No way, I like power delivery of a supercharger for the track. My next car will be a C7 Z06 but I have to wait until the price comes down some, I might have to wait until the C8 comes out :shakes head: