Hello everyone!

I'm currently running a Needswings single CAI on my SRT-6 and i've recently been pondering the idea of either upgrading to a dual CAI setup or just keeping my single setup and buying the Xstream filter upgrade from Needswings. Now of course in a perfect world i'd love to run a dual Xstream setup but unfortunately i'm not made of money.......lol.

But before I pull the trigger and drop $80.00 on the upgrade I figured it wouldn't hurt to ask a few questions.

1. Has anyone on here done the upgrade and if so is it worth it? From what I can see on Needswing's website the Xstream filter upgrade definitely seems to flow a good bit better on the flowbench than that of the standard filter (20cfm higher) but i'm not sure what exactly that equates to in terms of overall hp/tq differences.
2. I see that the kit includes a power steering cooling line relocation kit. How difficult is this to install/relocate? It being a quick 15 min job versus something that could ultimately take hours to do will play a big part in whether or not I deem this uprade as being "worth it".
3. Lastly, does anyone happen to know the specs or model number of the filter itself? I'm sure I could just email Needswings to get this info but I try to do my diligence of being an active member on here so I wanted to resort to the forum gods first. The reason I am asking is I want to see if K&N offers a precharger/drycharger for that filter. I am running an Outerwears prefilter on my existing setup and I like having it on being as my car gets driven in the rain from time to time.

Thanks for looking! Any and all commentary is welcomed.

 

I've thought about doing this, but I don't think it is worth the money. It's not going to give much more power. I would guess about 5hp, maybe, considering the DCAI flows 120cfm more and produces 10-15 more hp.

 

True, but if you really look at the big picture.....another single NW CAI to convert a single setup to a dual setup will run you about $450.00 (unless you can find one for sale used). So that's $450.00 for an additional 10-15hp (and a cooler looking engine bay......lol). With that being said, I don't neccesarily mind shelling out a fraction of that ($80.00) for the Xstream upgrade for a few extra ponies. The way I see it......it fills the void between what I have and what I want. I just can't justify spending the $$$ to upgrade to the dual setup.

 

Speaking of horsepower (and I realize this thread probably isn't the best place to ask this question) - does anyone care to ballpark an estimate of how much whp my car might be making? I've been meaning to get it on a dyno but just haven't gotten around to doing so.

I basically just have an intake (Needswings) and a tune (Eurocharged).....I doubt the custom axle-back & CM30 I/C pump really do much as far as adding power goes.

 

 

Thanks! And WOW your engine bay is clean! I clean mine every so often......but it definitely doesn't clean up as well as yours does.....lol.

 

thanks, I'm a little obsessive.....

 

I have the DCAI - and love it's look and feel its' impact. If you do upgrade, the procedure to change our the powersteering line was, in my experience, a real pain in the a** but I'm stll glad I made the upgrade. I have thoughts on how to do it differently as well, to make it easier.

See post 6 for a picture of my intake.
https://www.crossfireforum.org/forum...38-intake.html

 

Ball park estimate on WHP is 285-290 on stock SRT. My car shows 340 rwhp with the addition of 65mm pulley and DCIA installed. I have not done a dyno test/retune since installing the tweaked manifolds. So, I'd say you are around 315 rwhp. My dyno work was on a dynojet, so these estimates are what they are :-) The combination of smaller pulley, tune and CAI made the car so powerful/squirrely that I could no longer enjoy it until I got the wavetrac limited slip diff - which is VERY pricey...but so worth it if you can afford it. My goal with my SRT6 performance mods was to get it to equal the 360 brake horse power rating of the 1967 427 Shelby Cobra while having a car that had vastly improved handling and manners (so I would be less likely to kill myself). Note that my car is appx 415-425 bhp (now that I have the tweaked manifolds). I figure the additional horsepower and fatter/earlier torque range on my srt compensates for the significantly lower curb weight of the cobra. The cobra would hit 0-60 in 4.2 or 4.3 seconds. My SRT6 does this in 4 or 4.1 seconds. Total Cobra production was just over 1000 cars, and the srt roadster is right there as well. So, this is as close to actual (better actually) performance, beauty and rarity to my dream car as I ever expect to get without spending over a million dollars :-) I DO love how you've lowered your car, and one day think I'll drop mine about an inch/inch and a half. What's the easiest way to get there?

1968 Shelby Cobra 427 Specs:

curb weight; 2355 lbs (1068 kgs)
maximum peak output power; 365 PS (360 bhp - 268 kW) at 5400 rpm
maximum torque of 569.0 Nm (419 lb.ft) at 5400 rpm

 

Is that spec in gross HP or net HP?

If you count the continuation production, there are many more "real" cobras available.

 

the spec is gross, crank, brake hp, not wheel horsepower.
righteo lots of Faux-bras out there

 

Huge extreme filter ..... worth it or not ........ depends on your future plans IMO. I went from a single, to a single with the extreme filter, to a double Needswings CAI. The single is all you need. The extreme is a visual statement more than anything else. I couldn't tell any power difference. The double helped in the lower rpms but max power stayed about the same as I recall. No more than a few hp at redline. Not real scientific testing as the dyno sessions were years apart. But you couldn't convince me to swap back to a single. The double is visually impressive and gives a balanced look. If your not looking to step deeper into modding your car do the extreme filter. If your thinking about a double in the future, hold off on it.

Les

 

Thanks for the info man!

I did some rough math/guesstimations myself.

According to the Needswings website, a stock SRT-6 averaged 297whp between 3 pulls and averaged 322whp with the addition of their single CAI after 6 pulls - a 25whp gain over stock.

On the Eurocharged website the ECU tune claims a 38hp over stock at the flywheel. Given the Needswings dyno data, I will assume a 10% hp loss through the drivetrain (Car is rated at 330hp at the flywheel/motor and dynos around 295whp = roughly a 10% drivetrain loss). So if it's a 38hp gain over stock at the flywheel I will subtract 3.8whp (10% loss) which = +34whp.

So by my "I know how to operate Google but haven't actually had my on a dyno and will assume that this is absolutely incorrect" math......

Stock - 285whp-295whp
Needswings single CAI - +25whp (est.)
Eurocharged Performance ECU tune - +34whp (est.)

Total - 344whp-354whp......which definitely sounds way too high....lol. (and i'm not even factoring in my axle-back)

But I guess it all depends on the type of dyno you are on too - Mustang dynos & Dynojets give out very different numbers. Realistically I was hoping that I was around the 330whp range as it sits.

As for my car's ride height - the top of my tires rubs the inside of my fender tub terribly under full lock and when I hit big bumps on the interstate my tires rub so hard that flumes of smoke come out of my wheel wells.......lol. This is alll "normal" stuff for me because i'm used to owning impractically low cars but I suppose I would say that it isn't for everyone, or the feint of heart. I usually just shrug my shoulders when I start hearing terrible noises. I'm on modified KW V2 coilovers. If you're after a mild drop I suppose any set of off the shelf lowering springs will work as well as the next.

I'm not really after "big power" and I just can't justify spending the $$$ to upgrade to the dual setup just to get a few extra "wow" points when the hood is open. I think I am going to settle for the Xstream upgrade as a happy medium and to optimize my existing setup.

 

So my girlfriend got me the Xstream upgrade as well as the Needswings oil catch can kit for Christmas. I'll be installing both this weekend.

 

congrats! Let's meet up when it gets warmer around here...

 

Thanks and sounds good! Despite the lackluster weather I am still driving my SRT-6 regularly. I just took my Civic to visit my parents down in lower SC for Christmas but I still use the Crossfire for runs to Sheetz and the grocery store.....lol.

 

I found a pre-filter that specifically fits this giant filter......lol.

Filterwears K157K

FILTERWEARS Pre-Filter K157K Water Repellent Fits K&N Air Filter RU-28 | FILTERWEARS

And some other places you can purchases it.

eBay

http://www.ebay.com/itm/like/261687193790?lpid=82
Amazon

 

The catch can works great. A bit complicated to install but worth it. The filter doesn't need the sock on our cars as long as you keep it clean and oiled. I do mine once a year. Ok, that's my opinion only but I've driven in monsoons without issues. As a matter of fact, I was spraying water / meth before the throttle body for a while as well.

Les

 

Well your drivetrain loss is off as the engine makes 349 BHP stock, not the 330 BHP advertised by Chrysler(while they were owned by Daimler). I started the same way as you, with a single and little filter. Then upgraded to a dual. Finally, I installed 2 X-Stream filters. Car has never been on a dyno but the time slips told a tale. From single to dual I gained a little over 2/10ths. Adding the X-Streams netted me another 1/10th. She will break the tires loose all the way to 3rd gear on the street still, but I will say the biggest bang for buck was a tune from Eurocharged. That was good for a half second off my ET. All in all, the dual is worth it for symmetry and the whine note change.

 

Thanks for the input everyone! It's been oddly nice here in VA the last few days so I took advantage of the weather + being off work for Christmas and installed it yesterday. I didn't have to relocate the power steering line. Rather, I just got some warm soapy water and "persuaded" the lower section of the intake to go up a smidge further onto the top section. It clears both my grill and the power steering line now. Easy peasey! Although I don't feel muchof a difference on tthe butt dyno which is to be expected I can definitely hear the supercharger a bit more now.

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