Greetings. The more I think about my crossifre (I can't drive it right now, to read the story here's the link: https://www.crossfireforum.org/forum...pic.php?t=1778) the more I am beginning to hate 350Zs. Maybe a mustang/camaro rivalry will develop, who knows? Anyhow, I would like to increase my HP (keeping my costs under 1k) and was doing some research and came across this SpiralMax thing. I was wondering whether anyone has ever used this in their vehicles? Here's the link to get to it: http://www.spiralmax.com/ ). I would truly appreciate whatever feedback I can get on it before dropping any money.

 

Don't bother, it's a rip-off. :shock:

The crossfire has relatively long individual intake runners with professionally balanced flow by design.

Any added stators would restrict airflow and any vorticity induced would not last into the engine.

 

http://www.spiralmax.com/ ). SCAM!!!!!!!!!!

 

Sorry that im a hard core car noob... but I do have a question about all of this... I got a rental PT turbo high out put today as my loaner car while my brakes were getting put on... and HOLY that turbo really does move! I never wanted to push my mom's exact same PT to the max i did with this... but my friend and I were SHOCKED at the output of this engine + turbo!!!! Why can't the Xfire have a turbo package? is it because of stability in the engine? will it blow the seals and what not? ... cuz it seems turbo is easier to hook up and may not produce as much as the Supercharger... but it sure sounds hella bad *** when it really takes off again... sorry for the question but I know maybe people on here are WELL informated about these things

 

I think u guys r hung on ###I owned a new track model 350z peice of cr-p could stand after iweek sold and got the cross,it feels quicker with less noise and fibration

 

Superchargers are far easier to install. You drop them on top of the throttle body and tighten a pully around the crank. A turbo has to be custom made to link the exhaust to the intake, which would be difficult to connive in the engine bay in the Crossfire. You'd need an entirely new exhaust manifold, header, and cat-back, along with a completely redesigned intake route. Plus superchargers put less wear on the engine because they only boost when your throttle is wide open.

If you want power you're going to have to lay down a LOT of money. $1,000 won't even get you 20 horses. $6,000 and you may get something going. $15,000 is when you car will start to go much faster.

 

I agree that horsepower is not all involved (weight and torque play key points too) but I did test drive the Z - I loved the crossfire all around, wheras with the Z all I loved about it was its speed (the Z has such a cheap looking plastic interior I felt insulted). Haven driven the crossfire and Z on the same day, I'm pretty sure the Z is faster all around (better 0 - 60, better 1/4 mile, and better top speed). Of course, this isn't meant to imply the crossfire is slow (I love it) and the crossfire just looks better, is more comfortable, feels better to drive...I just want to go faster than Zs, 'cause for some reason I just HATE them now that I have my crossfire! (I'm still thinking about a name for her).

 

Renntech (and advertiser here on the forum and in the shop) I believe offers one of their upgrade packages as a "Z Killer". But it's on the order of 15 times what you're looking to invest. $1k won't beat a Z straight up. $500 for an Upsolute ECU upgrade and K&N air filters will get you much closer than $500 spent anywhere else, and will leave you $500 for gas to practice launch and driving techniques so the next time you're at a light next to some a-hole in a Z, you'll SMOKE 'em off the line, and that's where racing is won and lost anyway.

 

thxs for the exp. james!

I dont think its the fact that I wanta REALLY make my car faster then someone elses... its not that at all.. I would just like to improve on my car... was kinda common back in the older days when people used to work on them all the time... I could care less if a 350z can stump my butt... this is a personal thing and I love to add more and more things to my Crossfire as I own it

 

I still think u guys don't know or see the real picture,the z is the jap camaro,mustang,noisey and I thought a lousey looking design even though i bought one!I'm glad it's not in my garageany more!I know cars and i'm still mad i let myself get sucked into buying that crap.Cars i've had in last ten years,91-nsx,69 300sel6.3,70-280sl,94-400sc,94-400ls lexus,280-3.5 cpe. ,300e cpe&sedan,73-450sl,65 mustang &67 fastbacksv-8,350zcrossfire,honda insight,honda2002si,94v12jag,96v-12jagsedan,2xjs v-12,I drive every car i can afford .to sum i think the crossfires one of the best i've driven

 

The Crossfire is based off of the SLK Mercedes line. Only options were a 4 cyl, 4cyl supercharged, 6cyl (what we have) and the AMG Supercharged 6. That is all that will fit into the crossfire.

However, the PT shares the same line as the Neon. Which is why the PT and SRT 4 Neon can share the 2.4 turbo motor. Sure it is fast, but it is FWD. Currently they do not have any RWD cars using that 2.4 turbo motor.

Could you turbo the Crossfire? Sure. Build up the stock internals of the motor, forged pistons, better rods, lower compression, better head gasket, fabricate a custom exhaust mainfold to mate to the turbo of your choice. You'll need 2, as you are running V6 and not inline. Upgrade fuel system, exhaust, develop some kind of intercooler design, fuel management, etc.

You can turbo anything, it just takes $$$$, Time, and effort.

Turbo's are a lot of fun with temps under 85 degrees. Especially those nice 40 degree days 8) Anything hotter it feels like a 4cyl =/

 

I'll second that... I've had a T-bird Turbo Coupe (2.3L) and a Shadow ES (2.5L), and once the temp outside was above about 80-90 degress, the boost was noticeably lessened. Neither car came from factory with an intercooler, which might have helped. Man, that T-bird was an awefully heavy car to be hauling around with a 2.3L engine... :sad:

 

I believe that StartTech has a 6.1L V8 version of the crossfire that puts out somewhere around 450 HP? I've been looking around and stumbled across it somewhere.

So at this point I've decided to start with the K & N air filters and an upsolute performance chip upgrade. Eventually my guess is that an aftermarket supercharger kit will be available, and for much less than the 10k premium that Chrysler wants for the SRT6. The one thing I've noticed about the 3.2L is that it doesn't really have much low end torque - its sweet spot is really up around the 2.5k - 4k range. Pardon my repitious question (I've read the posts on the upsolute chip, but I can't really tell if my questions was answered there) - does the chip upgrade assist in providing more lower end torque?

 

Well, just a tip from personal experience when it comes to modding cars. There is NO point in modding the car you own in order to make it faster than another car out there, because there will ALWAYS be a faster car out there no matter how much money you lay under your car's bonnet. If you're going to modify your car do it for you own enjoyment, not for the purpose of being faster than someone else. That's the only way you'll ever be happy.

XethW: http://www.startech.de
And if you buy the chip upgrade now you'll have to revert the ECU back to stock parameters before installing a supercharger. A Supercharger + an ECU that advances timing = predetonation. (is that the right terminology? I'm not sure.)
But anyway the chip will give you a 10% increase in torque at EVERY RPM value. Your powercurve will basically leap up about 20 pounds per square foot with the new ECU.

 

Hmm...makes me wonder whether I should chip the car or just wait for the supercharger. It's not as if my car is slow! Man I miss my brand bew car...

 

I talked to the chip maker the "18 " maybe Hp & torq, for $400-650 is not worth the problems that could happen with your warrenty,If you care about $$ it could cost you 1000s'

 

I have read many places tthat manufacturers can't void you warranty for aftermarket parts unless that part is specifically responsible for the damage - and that a technician wouldn't be able to determine whether your chip was a mod or not. Is that not the case?

I also want to thank everyone for being so kind to my newbie questions - I am really feeling a sense of community develop around us xfire owners! I have a question - I'm still looking to name my baby...it's a graphite metallic/slate grey, I've got a pic in my gallery...any suggestions?

 

If you blow your engine you better change the chip,because this is not a cheap engine! I know they will find the chip it's in the brain of the car.And they can tell you to pay or not it's your car not theirs.

 

Hi XethW,

my advice would be to go with the chip and filters. The possible later charger may
a.) come much later and you could have had more fun for a long time.
b.) not come at all or cost way more than you are willing to shell out.

With the supercharger option there mey very well be a couple of different ways to go...not all superchargers are created equal. Some will require major surgery and require a reprogramming of your ECU while others will not. Until they are out on the market there is really no way to know.

 

I agree 1000%! Since I've done both the K&Ns and the Upsolute chip and all is very fine.

I've said it before and I'll say it again.... This engine has 10.0:1 compression. No one that knows what they are doing with blowers is going to put one on an engine with more than 9.0:1 compression. It's a waiste of time and energy to supercharge an engine with higher compression. So if they ever did (and I doubt this will happen) come out with a blower mod for our Crossfires it will require replacing the pistons to lower the compression. Then adding the Supercharger, installing larger injectors and higher capacity fuel pump and of course the ECU will require replacement or modification. In the long run it would be much more cost effective to just buy a SRT6 and be done with it.