Found an intake system can delete this post

 

Welcome to the forums!

So the single intake is no where near as good as the dual intake. This has been proven many times on the forums. I'm sure older members will chime in.

If you think 800 is too steep, there are a few more options. You can purchase a Sl55/E55 intake off ebay for about 225 shipped. This will be a direct bolt on and will look factory. You can throw in some KN&N filters and devil horns on the front to get maximize gains. This is probably the cheapest route with pretty good gains. A forum member once posted dyno results showing 25rwhp (The number might be off, I'm going off memory here). with the sl55 intake.

Your other option is to build your intake. Not too difficult and failry cheap as well. Most DIY intakes run about 300 and they will produce slightly better results compared to the sl55 intake. There is a site with DIY info: srt-6.com.

Good luck and enjoy the car.

 

I believe "Doc" showed that the single cold air intake flows plenty for the 200 cubes we have. The DCAI system has the symetrical look. Check the sale items by members and you may find a deal. Alsom check with "Doc:.

 

I agree. My dyno tuner said there's no dyno results to indicate any major gains with DCAI over single CAI intake. His words "show me the data because there's only so much air you can stuff in a V6." I put my needswing single CAI intake on tonight. I already had a 62mm Eurocharge pulley. The gains with the needswing CAI are VERY noticable. This car hauls ***. Period. I'm getting a dyno tune next week and will post torque and rwhp numbers. But I'm here to say the single CAI from needswings is EVERYTHING they said it would be. I'm seriously breaking traction at 40mph from 1st to 2nd. Reminds me ALOT of a stroker 350 I built years ago. It's right there in torque and hp. I should get more with the tune.

 

The dual CAI caused laminar flow....thus creating a more efficient and balanced intake of air.

 

How did that come out in terms of rwhp gains?

 

Calcs indicate there's probably only 0.2psi difference between double and single CAI's = 1bhp (@~650cfm)
I agree with the comment that a double CAI would provide more balanced air going into the SC intake, but this would all get evened out in the cooler/intake plenums though.

Do you have a Pulley saver kit with the EC aluminium 62mm?
Are you at Sea Level or altitude?
If you can, it would be interesting to hear your AFR's with the 62mm and CAI. If you're logging , your grams/s air intake is another interesting one....should be about 330-350g/s at 6200rpm. There is some info indicating your fuel pump/injectors might be at their limit with this setup.

 

I'm getting a dyno tune Wednesday and will post the data. I've read some comments about AFRs with my current set up being a potential problem. Some say with a dyno tune it is manageable and others are more in line with your comment. I will know more after the tune. Right now without the tune the car is really performing as compared to stock intake and pulley but I need data to see where I'm at. My 62mm pulley is EC but is not aluminum. It is an upgraded steel product they just started producing a few months ago. I don't have a saver kit and the stock belt was adequate. EC said they've sold 70 of them with no scattering or complaints with no slippage.. I'm in Tucson, AZ. We are about 1000ft above sea level. Its humid now so in November I will take it in for a retune. My dyno guy says he can manage the AFRs and I will see more torque gains than HP although he's done SRT6 crossfires before with similar mods and got good gains in HP. I will know more Wednesday and let you know how it comes out. As far as the DCAI not enough gains to justify the money. Port and polish the heads and hone the valve guides and there will be more than enough air moving.

 

Having had two srt6s,I can say on my first car without pulley bone stock roadster ran 13.2@106 stock ,single intake improved that to 13.0@107,dcai improved slightly more 12.9/13.0@108.I have a coupe modded out and the more modds you have appears in my case the bigger the difference I went twins on that car as well from a single.

 

Unless you use the car at its limits we can say that no differance will be seen, so unless it is for looks the extra $$$ are wasted for the average owner.
I run the NWings SCA intake and you can hear the SC whine a lot more over stock, had the car not come with it I do not think I would have bothered to get it though. I still have the original engine cover and I think that looks nicer to my eyes, but I love that whine.

 

I agree. I suppose I could see if a person was a serious competitor, 1/10 of a second and 1HP is a gain. I'm not a competitor. For me, the extra approximate $500 for DCAI with a totally mixed opinion on true gains isn't worth it. That's money I would rather use on powder coated wheels or a good wet sand and polish.

I had the money for the DCAI but I think, in my opinion, people see the symmetrical appeal more than actual performance gains. Having said that, if a person had heads ported and polished, honed valve guides, and added headers/high flow exhaust, they MIGHT see some worthy gains with DCAI.

There are a lot of guys on this forum far more knowledgeable than me. Some are experienced competitors, some are engineers, and some are like me, old school motor builders. My thought process is influenced from building carbureted small block chevy and mopar big blocks. That logic is "you can only move as much air as you can get through those heads/guides." That's why we always started with porting and polishing, honing valve guides, and then moved into headers and high flow exhaust.

The Dyno tuner I use fits into the "highly intelligent" engineer department. He spouts off all of this mathematical reasoning, physics stuff that leaves me saying "uh...ok." But in the end of it all, he comes right back to my logic; only so much air can be moved through that motor. The only real benefit a person might get, in my humble opinion, is perhaps a cooler temperature air moving, but then one could argue that having the DCAI gives three more feet of aluminum tubing to super heat, which might actually heat the temperature of air. For me, if I can't get 10HP or more out of a mod I'm not interested. Right now with the 62mm pulley and single CAI I got that and then some. The dyno tune coming next week should give much more although he thinks his greatest gains will be in torque, of which I already have a lot. To the point I'm breaking loose brand new tires in WOT shift changes 1st through 3ed. I'm good with that!

 

I have the dual on both the cars now. I started out with the single on the roadster. There is a slight increase in performance. I had more low in torque and it gained me a 1/10 or so in the 1/4 mile. But a single would serve most people just fine. I am not much for dynos. They all seem to tell you different numbers. I am one who likes to go out test it in real time real parameters. When we changed out the single for the dual in the parking lot of the hotel in Detroit, and then headed right back out onto the interstate, there was a noticeable difference. That is all I can say.

 

You guys are all far more experienced in these cars than me, but these are my numbers on a mustang dyno, on average 12% less than Dynojet. 350hp and 342lbs of torque at 5800rpm. 12.2 AFRs. Only mods are the single NW cold air intake and a 62mm EC supercharger pulley. No tune and crappy plugs I changed out today. Dyno results do matter and I haven't seen any support even a moderate increase in either hp or torque on this forum. But I defer to your experience with the DCAI. I'm good with the single. Thanks for the reply Doc!

Mike

 

Here's my dyno result from way back - - with the mods in my signature.

Only items to fail me so far have been the headliner and the interior door pull.

Do the maintenance and these are damn fine cars.

 

Those are awesome numbers! Great job. I might get there with a tune. I only have the single CAI and 62mm pulley but pulled in fourth gear 350hp and 342 torque at 5800rpm. In a third gear pull I had 410lbs of torque. This was on a mustang dynonameter. They tend to be lower than a dyno jet by around 12%. I also had washed out spark plugs. Replaced them yesterday. I had to do my headliner too.

Thanks for the post. Good stuff!

 

BB - You've stuck with the 74mm Stock Pulley? - just checking as there isn't any in your sign..
~19psi (sea level) ?
Any record of g/s air at red line from the ECU?

 

Bear in mind that most of the mods that would give a nice increase in a N/A motor will not have the same effect on a supercharged motor. The N/A motor relies on vacuum and efficient air flow to get the charge in and out, while the SC motor just stuffs it in there. Granted, everything you can do to aid in airflow will help, just not to the same degree as a N/A motor.

 

Yes, Stock S/C pulley. I did replace the smaller idler pulley that came with the crank pulley kit with the OEM idler and installed a larger serpentine belt to compensate.

7 years and 70K miles later, I still run the same setup with no issues.

With this setup, I max out at 21 PSI at sea level @ 80F