My thoughts on Nitrous were to put a spray bar across the outside of the intercooler. Jaguar racing team did it to get 225mph at Bonneville. The nitrous is used as coolant not as air.

 

Remember Jagular knows all !! Just ask him he will tell you.

 

Yeah, looks like it's a whole lot of wrongness, lol.

So much misinformation in this thread, especially by those who think the air intake doesn't matter on supercharged cars.

 

I hope Avos will post the increase he had in boost when he went to the 3.5 intake pipe. That should address the intake issue.

 

Its not that it doesn't matter but when your looking for 90 hp its not coming from the air filter.

 

A large part of the power consumption of the SC is based on the pressure after and vacuum before. So the more vacuum in the intake, the more power consumption from the SC itself and also less airflow which is another loss. For an ideal system you want 0" vacuum at full throttle. The air intake system IS a very important part imho, and need to be sized right for the job.

I have some ideas to get above 600HP on the 5.0 SC cars, but I need one here.

 

I think many of you need more info on modern tech except for AVOS. For me to comment on why so many are wrong on the intake it would takes a books worth of typing. In a nut shell I played with some prototype intake for the XF S/C and many things were learned as EXPECTED of course. In the end I was able to get some gains and a lot of blower whine by simply having the OEM Ypipe from the MAFs to the TB made out of heatr coated Aluminum that made a very nice smooth flow. The boost naturaly raised itself about .8 PSI. The problem is we couldnt make the needed ECU adjustments to take advantage of it and the OEM MAFS ran out of room to adjust at 1 point.we did use the same size tubing for this Y pipe ad we tried a larger one, both seemed the same results in power but the MAFS were maxed out with the bigger tubing. We couldnt make the ECU adjustments where we wanted so it didnt matter which we used. The boost was being bled off by the ECU at low and high RPM. the mid range was where the big notice was seen.
I have a Youtube video of it so you can hear the sound. Sounds like a 03 Cobra with a big intake and cone filter on it.

After the first few units are completed and tested a shop by me will offer a swap of your core blower for a full ported unit with an ECU flash and pulley. The only thing holding it up now is the issue with the stock MAFs'. They will see if the new MAF's on the 2013 offer more flow ability. There are a few other ways to do all this but they want to keep it OEM looking and looking for a nice fit and finish, no hack job.
Time will tell.
Take notice all the new 2013's have all the same parts but all new MAF's used in all the new SC5.0 motors.

 

Oh, and to add to someone's comment I spent $2k total and got a proven 70WHP gain on a hot summer day wit ha heat soaked motor on my first try. Convert that figure to BHP/Crank HP and you tell me if it wa worth the $$$ spent?

And my 1/4 mile time? That 11.9@119 was on my first try as a shake down run.

And highway pulls? Well, the YouTube vids speak for themselves.

I am not tooting my own horn just stating the facts or those who want proven facts that the combo of Mina Gallery and ECUTG tune/Pulley works as advertised.

 

1fastcat,

What I said, your looking for 90 hp there it is.

 

Hey Cat, definitely interested in this. I tried viewing your video though and I end up watching two dogs barking at squirrel. Is it still up there?

 

Big Cat... Let's just say that I am a believer in the gains that you claim. How can I implement these mods on my 2010 XFR? I'm not mechanically inclined, and I have no idea what shop could reliably do these modifications.

 

Here is 1 link to the intake sound :
And another when on it. :
And far as a shop to do thise I know there will be 2 in NJ, 1 in NY, and 1 in CA to start for installs. Everything will be direct bolt on.

 

Bigcat, does the NJ shop install the pulley and do the tune? Where Are they located?

 

They can do it but it is much easier to do your self since ETG mails you the laptop to flash it in your own home with no wait time or commute to get it done. And the pulley is a PITA if your not using the ETG pulley tool to do it. The tool makes it super fast and easy for any DIY. I wish I used it when I did mine, lesson learned.

 

BigCat what intake are you using?

 

and pics?

 

I am back to using the stock intake with K&N filters. I cant post any pix of the aftermarket intake until the company finishes the R&D and packages it for sale.

 

What kind of gains can be expected? And when u gonna come visit my neck of the woods? I have a cts-v and a 2013 bmw M6 convertible for you to run. Pulled a hard 3 cars on me from a 40

 

Without a tune there really isnt much gain, just sound and a nice poliahed piece in the engine bay. We would see small spikes in the dyno with it but the ECU corrects this and holds it back as expected. The most we expect to see is 10WHP.

I am glad to come to your neck of the Jungle anytime with my XFR, GTR, or 997 and clean house for ya. That new M6 is probably dead even with my XFR until 150mph where it would start to walk me. That m6 is $135K in a Vert! it only runs 12.3@115MPH so I know I have it beat on the track same goes for the CTS-V unless it has a pulley, intake and tune which will walk me as well. Inbox me your info anytime you want to go out for fun.

 

Sorry fr not following up. The shop that was making the intake for the 5.0L SC motors like my XFR is no longer around as Super Storm Sandy has wiped them out.

But, they are attempting at opening another shop soon as possible when they get the insurance and FEMA money straighten out.

Far as the intake I can tell you guys this much about it. Imagine the stock Y pipe that comes from the TB to he stock air boxes. Now picture it being replaced with a heat coated aluminum version with 3 humped silicone couplers and clamps to attach it to the TB and the stock air boxes. These humped couplers will allow some flex like the stock plastic y pipe did with the accordion portion it had. Thee new hard pipes now give the beast of a motor a smooth unrestricted even flow of incoming air into the TB. And since there is no ridges and other non linear ripples and edges the air flow is greatly improved as well as being cooler due to the heat coating on the hard pipes.

Now the optional mod to the air boxes if you wanted to take it a step further, but not needed is to trim the inside upper of your air boxes just like we all did with all of our Mb AMG cars. They made ROW air boxes for all non NA AMG models that gave more air flow to the mix. See this link for the DIY and the boxes : DIY: ROW Air Box mod - MBWorld.org Forums

http://mbworld.org/forums/attachment...d-p1040833.jpg

As you can see just this simple trim gives good proven power : http://i541.photobucket.com/albums/g...3ROWAirbox.jpg

I came up with all of the parts and how to for this shop to produce them so we both could offer a finished product to everyone, even a XKR variant and then 4.2 guys.

Now for the good and bad where we left off before the storm took everyone out. The good is here is no check engine light, no rough chop idle after the ECU learned the new found flow after a few days of driving. A great increase in supercharger whine when at WOT and no whine at idle or light cruise to keep that classy V8 grumble and not sound like ford mustang, etc with that annoying whistle. There is a nice suction sound upon upon a blip of the throttle.

Now for the what w call the bad side of it. We took lots of IAT measurements, dyno runs, and MAF reading,etc to see what changes we found and if it made good power. What w found was a great initial boost in power but the ECU always seem to put it back in check to hit it target range like a governor. How do we know for sure? Well when we did our exhaust tests to see if we made power with different exhausts we seen the same pattern. Same as when I did the pulley swap. The ECU just wanted to keep it in check and bleed off any extra boost it seen. We proved this again by flashing the ECU and then we seen all that power come to life and take advantage of the mods.

So the End result is the same as adding an exhaust, a pulley, air filters, etc. Without a tune the gain will be minimal and may not be worth it for everyone. So we wanted to work with a tuner who could unlock this restriction just like it did with the pulley and such. We did not that the A/F, Timing, ETC never changed a bit and still stayed within the original ECU programming range that Jaguar intended it to be so it was a totally safe , simple, direct bolt on in 20 min performance part we all can add for looks, and power without the fear of harming the motor. We believe that the restriction was a combination of the ECU and the TCU just like the HP restriction was made form the normal 470hp SC and the 510hp XFR.

We started to do a MPG test with it and seen a solid 3MPG increase over a 1100 mile test. We didn't get to do more of that testing unfortunately but feel the data was pretty accurate.

If we can not pursue this further soon and make it a finished product for sale we were going to sell it to a vendor like Mina Gallery, etc for them to mass produce it and sell it to the public.

We figured the finished product would sell for $299. and the expected power gain on a stock car was 8WHP and with a ETG tune 11-13WHP. This is a good gain for the money and a simple 20 min DIY install.

Please repost this in any relevant thread or post to help others seek more information In the future.

P.S. For all testing a pair of Dried K&N filters were used. We feel that a pair of BMC filters would be the best filter to ever run if they ever made a SKU for our cars.
And the stock twin snorkel/Nostril intake design from the grill to the air boxes is pretty damn good!!!