Hi all,

So my question is this. What is the easiest, cheapest way to get noticeable power gains for the n/a Crossfire's 3.2L without any crazy mechanical work or need for alteration to the transmission? I have an '04 alabaster coupe.

Also, does anyone know how much power the transmission can take before the internals need to be beefed up?

Finally, is there a full exhaust system out there for the Crossfire. I'm talking headers, catalytics, and muffler?

Thanks, and let the discussion begin.

 

Check out the TVT250 kit, sold by, you guessed it: TVT Design. He's a member of our forum and attends a lot of east coast meets. Here's his site: www.tvtdesign.com

Search a bit here in the forum and you'll see a lot of positive comments about the TVT250 kit.

Another excellent addition is a NeedsWings cold air intake. Rob (from NeedsWings) is a good guy and has been developing performance parts since back in the Neon days. www.needswings.com

Another option is an ECU tune. There are a few vendors for these, LET (www.letmotorsports.com) and InMotion (www.inmotionusa.com) are probably the most popular. I don't know what kind of gains an NA Crossfire can expect from a tune.

Past that, there are not a lot of perfomance parts for the NA Crossfires. A lot of the aftermarket performance stuff is SRT-6 only and focused on the supercharger.

As for the transmission: that depends on which tranny you have. If yours is a manual transmission, I don't know. But if it is an automatic, I believe it is the same tranny as in the SRT-6. There's a few guys here in the forums running pretty hot cars (10.x and 11.x second quarter miles) with no mods to the transmission at all. It's a very stout tranny.

If you're looking to add serious power to the NA Crossfire, there is a user here "ChuckNorris" that developed a supercharger for the NA. But he halted that project and has since started a turbo project. I believe his plan is to make a turbo kit for NA owners to buy. But that is likely several months away, if it works.

 

First, get a Sprint Booster - it transforms the car from feeling like a grand tourer into a motorised roller skate. Cheap and cheerful, too.

If you do decide to fit one, my advice is to forget the "use a magnet on the washer" ideas - I found this totally impossible. Instead, undo the two crosspoint screws holding the black under-dash cover nearest to the pedal box, wiggle the cover off, and then it is easy to gain access to the throttle sensor cable plug.

 

The auto on the SRT is a beefed up version of the N/A auto to handle the extra torque.

 

Will a Sprint Booster work on a manual NA? It seems like every time I read about the Sprint Boosters it is related to the automatics. I have seen manual Sprint boosters for sale on ebay, but I wasn't to sure I would get much out of one.
Also, where do you recommend purchasing a Sprint booster?

Thanks!

06 Alabaster Roadster

 

A manual SB will work for the manual but tends to make the throttle very touchy. Many manual owners opt for the auto version.

PM me if interested as we have these for sale.

 

Anyone know of a Cali based shop for ECU tuning? I'm a fan of TVT but they are way too far east for me.

 

obviously you didn't see our new home based tuning...

 

Home what who?! Please tell me...

 

I would say the cheapest power gain would be to run wet Nitrous.

 

Great idea! I probably get a new set of cold air intakes this week. I wish my dealer have them now.

 

and they just keep coming...more new faces with XF's to mod....welcome to modding....

 

wait does a sprintbooster actually add performance? I didn't think it did... would it reduce lap times/quarter mile times?

what does it actually do?

 

It doesn't add any performance at all. It remaps your drive-by-wire gas pedal. All it does is makes the car more enjoyable to drive. The car seems more responsive and the throttle lag disappears. Some folks don't like it and say the car is too twitchy with a sprint booster on.

Before you drop $300 on a sprint booster, attend a meet and drive someone's car who has one.

 

I wasn't planning on getting one myself. I was just checking that the sprint booster didnt actually add any performance. The guy asked for cheapest way to gain noticeable performance, and a sprint booster doesn't actually add performance...

 

Yeah, no performance added.

Your pedal goes from 0-5V depending on how far you have depressed it. Full throttle = 5V.

The sprint booster resets the 0V to 2.5V so that your pedal travel is only 2.5V-5V instead of 0-5V....

better throttle response, but no actual HP gain.

 

Before you do anything crazy, reset the throttle-by-wire response memory ... you'll be amazed at the immediate reward. Free.

Do a search for the simple procedure and other member comments.

Regards.