it's all about useful power and where you want it.

At WOT you're between 4000 rpms to redline. Actually when you shift at redline shift points are about 4200 in 2nd, 4500 in third, then 5k for 4th thru 6th gear. So when going WOT that's the RPM range you care about.

It isn't hard to just downshift so you get high up in the rpms


low and mid range are great and all and who wouldn't like more of that power in that range, but that's daily driver rpm range, not racing rpm.

for drag racing that's good for launching. For autocross it's great. For road course driving, it's great for coming out of corners. And it's great for daily driving.

It has those strengths

but the vortech has strengths in the opposite areas, namely when you're flooring it on a straight. You can eliminate most of the vortech's weaknesses by staying in a lower gear.

Turbos kick in at around 3500, not 5000 or up high

there's a guy with an ATI procharger (similar to vortech) did a 12.37 1/4 mile pass with an auto and nothing more than a good tune and 235mm michelin PS2's in the rear....13.4 won't touch that.

I can link you the video if you'd like...

Ha! Where do you get your misinformation?

Here's the link.

https://g35driver.com/forums/showthr...ech+1%2F4+mile

The Vortech does not make more power than the Stillen except 300 rpms to redline. But the Stillen gains a ton more power below 4000 where the vortech is useless.

Again why the Stillen SC beats the Vortech in a 1/4 race.

And again you obviously didn't read what I typed. Turbos DO NOT HAVE FULL BOOST TILL high rpms. They BUILD boost like the Vortech does.

dude, I can post you my dyno sheet and ask my shop to print one out for the stillen car - my car made the exact same power it did when it was NA

Here's the time slip.

https://g35driver.com/forums/showpos...6&postcount=18

Hmmm Please post that link to this guy. I don't believe the 12.37 one bit especially on a stock ATI pro pulley. I know a Z here that has the kit on hers. And lets just say it doesn't see that fast wtih a smaller pulley and other bolt ons.

Dude talk about misinformation! I hit full boost at 3700 rpms......16psi.:eek: :eek: :eek: You have no idea what you are talking about.

Really? I have a ton. And SportZ Magazine did the big comparison test and it also shows the Stillen making the most MEAN power (average) and most below 5-6k compared to the others.

Please do a break down of both charts and lets see. The Vortech doesn't make more power than a stillen before 5500~.

prepare to get owned....

http://www.capital350zclub.com/hosti...Procharger.wmv


that video is famous from a long time ago

Strange, I have owned boosted cars. Boost requires exhaust gases, the higher the rpm the faster the gases travel the faster the turbo spools.

Full boost isn't till higher rpms. Sorry but true.

If you consider 3700 rpms high.....then ok. What year did you own your boosted car????? 1969......lag is almost non exsistant now a days, especially with the TT kits available for the G/Z. Have you seen the JWT kit?

my dyno vs the stillen dyno is real world stuff - not making it up. Call dynocomp. www.dynocomp.com - ask them to look if you don't trust me, but it's your loss if you think i'm pulling it out of my butt


mmmm I have that issue and that's not a good article. that was way back in the day. That was before anyone was putting different pullies on the vortech.

Have you read the SPEED article of the 4 FI Z's? THAT's an article and should be considered the bible of FI article - shame the turbo cars didn't have good traction but yeah check that one out. The sport Z article is crap.

Turbos makes peak boost right at 3500 rpms or so and hold it to redline. They would continue to rise in PSI but that's what BOV's and wastegates are for - to keep the boost steady so it doesn't blow your engine at 20psi at redline


I don't know where to start man, just trust me that you don't know as much as you think.

Wow, he had a ton of other mods ton and ran that time. Impressive. Compared to a stock G that did 12.9 with just the Stillen SC. :rolleyes:

I've privately messaged him and he said for that pass he didn't have his return fuel kit or injectors etc yet. That run was the stock kit, tires, and a good tune