Thanks for you responses Alex. And sorry for hijacking this thread for a bit.

 

These are the numbers from the Dyno Shoot Out that we performed with Sport Z Magazine. Please note that these numbers are straight off of the dyno charts. The dyno charts get a bit messy to read when all of the lines cross each other. So, this should help. You can see from this that if you are looking for everyday driving performance in normal RPM ranges - which system provides the best performance. If you are drag racing with gears that allow you to operate at very high rpms, or like the peak gains, then the other units will be of interest to you. They each have their merits.


..............Baseline........Stillen @ 7psi......Prochgr @ 7psi.....Vortec @ 8psi
RPM.......HP/Torque.........Hp/Torque..........Hp/Torque..........Hp/Torque...........RPM
6500......228 / 187...........325 / 264...........350 / 281..........335 / 272............6500
6000......240 / 210...........320 / 280...........338 / 296..........328 / 287............6000
5500......238 / 227...........308 / 292...........312 / 294..........298 / 283............5500
5000......223 / 234...........288 / 302...........282 / 298..........268 / 281............5000
4500......204 / 238...........258 / 299...........248 / 287..........245 / 284............4500
4000......176 / 232...........228 / 300...........212 / 280..........212 / 277............4000
3500......152 / 229...........199 / 297...........178 / 268..........178 / 267............3500
3000......130 / 228...........168 / 293...........148 / 256..........144 / 252............3000
2500......105 / 221...........135 / 285...........115 / 239..........111 / 237............2500
2200.......90 / 218............118 / 282..........100 / 234............97 / 234............2200


Reported peak horsepower and torque values:
Baseline:....242.5 hp @ 5800 rpm 239.4 ft/lbs @ 4600 rpm
Stillen:.......338.2 hp @ 6600 rpm 302.6 ft/lbs @ 4200 rpm
Prochgr:.....353.7 hp @ 6600 rpm 300.5 ft/lbs @ 4800 rpm
Vortec:.......344.8 hp @ 6300 rpm 298.7 ft/lbs @ 5900 rpm

Also, please remember that while these results are posted, each vehicle will vary to a certain extent due to OE manufacturer differences, dynos and production tolerances. These run with Carl Merrit of Sport Z Magazine driving each car on the dyno. Same day.

Hope this helps decipher the gains for these systems. The question is where do you want to experience the gains.

Regards,

AC

 

2FST4U,

Any chance in the future this kit won't require the hood mod??

 

I have the Stillen stage 3 kit and I couldn't be happier. Stillen made a great product and I absolutely love it. After the first kinks were worked out the SC is running perfect. My car was part of the Sport Z shootout and it ran 338rwhp. I can't say anything about the Vortech or ATI since I have never driven either but you can't go wrong with the Stillen. It has so much low end torque you wouldn;t believe it. Those guys at Stillen are great and so helpful. I admit when I first bought the SC i didnt think the hood was a great addition but it looks much better in person than in pictures.

 

Can you elaborate on "after the first kinks were worked out" or point me to the post where you have explained this already? Also, did you install the unit in staggered fashion, meaning installed Stage 1, then waited for intercooler and installed Stage 2, etc.? The reason I ask is in reference to how the labor costs might breakout out if you installed Stage 1 and Stage 2 indpendent of one another vs. all at once (double cost, etc.). Not sure if that made sense or not...

Scott

 

Any chance these were run on a DynoJet and we can download the RunViewer files?

Thanks.

 

First "Kinks" were due to a install that wasn;t done right. I took it to a shop that had some problems installing it. I took it to Stillen once they were CARB certified to fix the install. Now everything works fine. I did get my SC in stages. As soon as a new item was added i wold add that onto the system. I first had the 5 pound boost non intercooled, then added the intercooled 7 pound. The initial install cost me around $800 at some random dealer and the upgrade I honeslty don;t remember what it was but it couldn;t be too significant.

I dont understand why you would go in stages now. I did it because i purchased what was available at the time. You should get the kit you want and get that installed all at once. There is no comparioson between the 5 pound and 7 pound; the car is a different vehicle (300 rwhp vs 338rwhp). If you need to save up I would save up and purcahse the 6 pound or 7 pound intercooled version. Then you only have to pay for 1 install.

Hope that helps

 

Thanks for the info. I agree, getting the package I want and having it installed at once would be best. I guess I was slightly lured with the idea of $3k now and then $2k later etc.

 

skk100...just for interest sakes....since gas prices is headed for the moon, what kind of fuel mileage are you getting?...and what is the best possible mileage can you get with a roots type system?....thanks

 

I get 27 hiway and 21 in town and about 8.5 on the racetrack with my stillen stage 3. Installed it myself in about 14 hours. It is a very easy install.

 

Any of you stillen guys tracked your cars yet? If so can you post some 1/4 mile times? It looks like stillen isnt the best s/c out there for top hp ratings but on the flip side it looks superior in tourque and im wondering since the most important thing is 1/4 mile times anyway it would be great to see some vortec/procharger/stillen times posted to compare.

Also does anyone know how much boost the stillen unit is capable of producing?

One more question lets say i want 9 lbs of boost...dont you just need the correct diameter pulleys to get it??

thanks

 

squill, 1/4 mile times at a drag strip for that won't tell you much more than how good the launch (or tires) were. Trap speed should be a better indicator of power output.

 

I have seen and heard both the Stillen & Procharger in action, and I have to say the Stillen 'sounds' a lot better. I also appreciate the low end torque that simply amplifies the nature of the VQ35 engine instead of changing it to a more peaky type power plant. The optional warranty (covers both the supercharger and the factory engine) is also a big plus IMO.

I have been thinking about this for months~ but just can't imagining my car with a bulging hood without wrinkling my forehead. 2FST4U, isn't there any way to put a smaller supercharger or lower the position of it? The compressor itself is rather huge compared to the Mercedes unit which is also capable. If the hood issue could be solved, I'd jump on the Stage 1 right now. (Only because the G35C needs a new front bumper to accomodate the effectiveness of the intercooler)

 

12.87 @ 105 with the test pipes instead of working cats, which cost me about 15rwhp.

 

2003z,
Where did you get your strut tower bar from. Your signature picture shows what looks to be a strut tower bar. I thought that you could not fit a strut tower bar when the supercharger is installed? I like the idea of being able to retain or replace the tower bar.

 

I got the stb from stillen. they just released it in May. http://stillen.com/Sportscars_detail...d=42454&page=1