nice to see someone other than me supply some data for a change congrats


so a stage 3 stillen is slightly better with mean power than a "stage 1" vortech

The stock vortech kit with the stock 3.33 pulley is basically considered "stage 1"

If you'd like to upgrade the injectors and the 3.12 pulley - that's a "stage 2".

If you'd like to then upgrade to a return fuel system and the 2.87 pulley - that's a "stage 3"


that is a pretty weak vortech and pretty strong stillen you're comparing. The vortech has lots of room to grow and the stillen doesn't

I'm not disagreeing with the data and believe it to be 100% correct, it's basically exactly the same data I've stated except you never did give me your 338whp stillen graph otherwise i would have factored that car as well into my % comparison and I couldn't find a vortech that dynoed lower than 350whp. The only stage 3 stillen dyno I could find off hand was a 323whp. I wanted more graphs, but I could drop a pin it was so quiet in here with anyone else who had any dyno charts

who actually drives with a 344whp vortech these days? Back 2 years ago maybe, but that's like a bone stock vortech setup on a bone stock car. Yes it is comparable in the fact that some people just might run that setup, but the vortech has an additional 140+whp available to give you with a full exhaust and pulley change. I've never seen a stillen hit even 380whp.

I was reading about one vender who has tried to get more than 360whp on the stillen with headers, test pipes, exhaust etc with a stage 4 and they kept running into a wall trying to do it. No matter what they did, it didn't seem to ever go any higher and sometimes even lost power with some of the changes they did. Actually Stillen themselves were trying to get a lot of power out of their kit with other mods and ended up blowing up someone's engine with the stage 4. It was on my350z.com. I don't remember which vender or who's cars it was in either case, but it's a fairly recent thread in the last 6 months

These days people don't often use the stock 3.33 vortech pulley since the 3.12 has proven to be so reliable and give an increase in power/tq across the board

Just saying I rarely see a vortech car below 360whp these days


BTW, if you have a 344whp vortech and a 338whp stillen - guess which one of those cars is actually harder on the engine? It's the stillen because daily driving you're forcing more air into the car even at low rpms. The vortech doesn't get much psi in daily driving rpms. It's not until you floor it.

People say torque breaks parts, well the stillen is making full torque at low rpms. The engine speed isn't very high, but the tq pressure is decently up there. Most people that have blown up engines with vortechs have done so because it wasn't tuned right and/or they were trying to make a lot more power with other mods and they skimped on something

 

Here we go again! LOL forget it. I am not wasting my time, its obvious you think Vortech is the best period.

PS, these were all done on teh same dyno, same day. And if Stillen was harder on the car it should be breaking it more, but it hasn't.

 

no

vortech isn't "the best"

stillen isn't "the best"

they're different, but why not compare a stage 1 stillen to a stage 1 vortech? or are we afraid to?

 

Well its better to compare BOOST PSI to be around the same instead of Stages. And Clearly Vortech had the advataged on PSI.

 

what if I don't think that's a fair comparison? the lowest stillen vs the lowest vortech isn't fair? we're comparing kits and what they put out in the real world, not psi battles

shouldn't we be laying out the low, medium, and high of the stillen and vortech kits together. If the data is all layed out, we can see where everything stands.

You and I already agree that for $5000 the stillen will give you more mean hp than a vortech kit and if that's the buying criteria that's the best option.

But why don't we gather up data for all stillens and vortechs? I'll be happy to convert the vortech graphs I've found into 500 rpm increments and do it your way. Either method of averaging graphs with black/white or your way with sampling points on the graphs is pretty much going to reach the same conclusion so let's just do it your way

 

Should have figured you would have came back with more stupid bs like this. I am done here. Some folks are just a waste of my time.

 

 

Hey Sentra65...when I started looking into FI...Vortech was my 1st choice but when I got into the Stillen...whooa total different dude. Have you been driven in one of the Stillen car...maybe you should

 

not to throw gasoline into the fire, but.

my mechanic once compared the way Vortech sounds to the can of nuts and bolts. make that - rattling can of nuts and bolts.

on another occasions, he said it sounds like a wailing banshee. i heard vortechs - they are LOUD. Stillen is silent as idle and at normaly daily driving.

i don't know about you, but that was a MAJOR concern for me, since i commute 70 miles per day on a weekday.

 

have you heard a vortech in person? My wife thinks you guys are all "wusses" - her words, not mine if you think the vortech is loud.

actually the vortech has made my car quieter from when it was NA (actually kinda miss it) - start up is quieter, cruising on the highway is quieter other than what I'd say sounds like the AC is turned on. It's only when you give it a little gas where the volume of the exhaust sound is much louder. Then again my car has cams, headers, HF cats, exhaust, ported throttle body, SSV manifold, and a high idle etc so it's just naturally loud anyway. The vortech with the intercooler has more plumbing than NA so it just makes sense that it's quieter at startup and idle as far as the exhaust sound

Otherwise at idle, if you raise your idle to at least 750 rpms and use a quality Gates belt, there really isn't that bad of a noise. I prefer to run my idle at 1200 rpms for several reasons, but one being it's higher than the stock 600 rpm idle where you might be more likely to hear some belt squeel.

No idea what you're talking about with rattling of nuts and bolts exceptI have heard some videos that sound like what you're describing and it turned out they didn't install it right - having certain bolts backwards, or something they screwed up with a self install. It doesn't make those sounds on a well installed one. Did the guy's car you're talking about have an aftermarket clutch with the stock rpm idle? That sounds like rattling nuts and bolts, otherwise video vs video the stillen sounded about the same as the vortech at idle - like that stillen video I posted a link to. Yeah my vortech sounds pretty much just like that at idle when they go around to the front of the car when it's on the dyno. I certainly don't hear any sound in the cabin - just what sounds like the AC is on a little bit when you're giving it some light throttle and that distant sounding SC whistling that all SC's have


I have 100% faith a stillen feels better for daily driven rpms, but if you go up to the next size smaller pulley or two and get some HF cats and exhaust etc, the vortech feels way different than a totally stock kit feels like. If you have 3.9 gears and headers, that helps too.

 

Vortechs have a whistle to a rattle noise at idle. The V2 versions are slightly quieter but still make noise. The Stillen is completely quiet.

Sorry but your car is not quieter. No those are proper installs with vortech in videos. That is just the way a vortech goes. Now your trying to tell us every vortech that people have heard isn't installed right if it makes noises?! LOL!!!!!!!

I give up. I can;t believe some of the stuff you have just said.

 

great job g35tx.

 

https://g35driver.com/forums/forced-induction/95995-your-vortech-loud.html

well whatever, if you raise the idle and use a gates belt a lot of the vortech's noise goes away because it's spinning faster - don't believe it if you choose to. You'll find that in most threads where someone is complaining about their vortech making some noise that as soon as they go to a dealer to raise their idle, it's gone. In the cases where it makes noise, either the blower was bad or the install was bad with one of the bolts being backwards, or the belts are set too loose or too tight

 

Wow that it the lowest hp I have seen on a vortech, even mine made 378 with the 3.33 pulley

 

I took the liberty to add to your chart with some other vortech setups

you seem to want to measure 8 psi, which is an odd thing in itself cause if you open up the exhaust, the boost psi drops, and you therefore have to upgrade the pulley to fill the engine with more air to return back up to 8 psi. It's completely possible that a 400whp vortech is running at 7-9psi depending on what breathing mods it has

the 450whp vortech actually was done on a dynodynamics load based dyno which usually read about 11-13% lower than what a dynojet reads...

if someone with a stage 1,2, and 4 stillen would please post their dyno, we can add that one in as well - and also lets try to get a 370-380whp vortech dyno

I see you're using the Sport Z magazine supercharger article from 2 years ago for your data. Do you consider that to be current data by today's standards? The vortech in that article was detonating from who knows what reason - is that really an accurate comparison? If a modern day vortech, ATI, and stillen car showed up for a dyno shootout, you really think the results would be close to what they were back then when the kits were brand new and had bugs etc? The ATI was notorious for not having a timing solution and detonating and the vortech's base map was so great and had a few changes made to the kit itself later on. I think the Stillen kit was the same back then as it was now - they got it right from the start I do believe, but these days things are different. You're still not factoring in that those are three different cars. You could have 3 stock cars on the same dyno on the same day and they'd all put out different numbers...

Does this graph look like a valid graph?
http://www.sportzmagazine.com/images...tech_Chart.gif
I suppose it's better than some of the graphs Sport Z magazine posted in their turbo shootout

anyway, here's the chart layout