I need a nitrous tune for my SCT xcal 2

 

Call up MT and talk to Nick he'll hook you up does good work. You can also give him a PM (The Fox Body Authority)

 

cool i'll do that, how much did you pay for your tune?

 

It's like $15 per tune I think

 

Thats not bad.... hey just curious what did u run in the 1/4 with you nitrous? what kindas shot>?

 

12.9 is my fastest time with a 100 shot at the moment. And thats with a very conservative tune. and ****ty traction and low bottle pressure

 

If you get a mail-order tune, be sure to get the A/F checked before you run it on the juice. Our cars have a bad lean spike on activation and many need a custom tune to compensate for it. For this reason I would not recommend a mail-order tune at all for nitrous. My tuner will not even sell a mail-order nitrous tune. Some venders will not hesitate to send you a nitrous tune, but they are in the business of selling tunes

Jay

 

MT was skeptical sending me a tune without a window switch and advised me to get one. But Nick did a good job retarding my timing 2 below stock when hitting the 3000 and havent had any issues with it not one lean spike heard

 

This is where we have problems.....you will not hear the lean spike and without having the A/F monitored you won't have a clue. Please read this...https://mustangboards.com/modular-4-...d=1#post120920


Jay

 

Dumb question but how did you get that tune onto your xcal? what sct program do you use?

 

Go to SCT its called Extreme Tune its a program were you can change and update crap. ayou also need the cable to hook it up to your computer.

JayC,
I know all these motors have a lean spike under activation. And of course one cylender is going to have that problem (most likely the one under the test port) I check my plugs and they all look fine after running nitrous or if I change something to my air flow. Also I just fixied my CAI problem and changed it to a short ram and still no problems.

 

BAD idea. IMO, it is STUPID to get a mail order power adder tune. There are too many things that could go wrong. Get the car on a dyno, id rather spend 300 bucks for an hour or two on the dyno instead of 1500 for a new motor. JMHO...

 

Technically speaking its not stupid in my case I had a conservative tune made in doing so I may have taken the best precaution at this time by retarding the timing -2 below the stock tune. Most people run on stock which produces a bigger bang. But with a tune you can have your A/F fixed and you have a tune and you know it is much better than stock.I may not have the best gains for having nitrous but I know I wont be having a problem for now by doing so.

Granted your correct on most parts for getting a dyno tune but this is a good start for now.

 

You have no idea what your A/F is at this point, so for now you're just guessing. I've seen "conservative" tunes go as rich as 10 to 1 on the A/F , all the while the tuner/owner thinks he's safe while the over-rich mixture washes down the cylinders. Being too rich can be bad as well as too lean.



Jay

 

I believe the guy is going with a Venom-1000. You can not tune those things in the traditional sense as these systems are self-tuning. So it really does not matter what the tuner does, the venom computer controls all the additional fuel addition anyway.

What you can do is to to have your timing retarded and have the programmer/tuner/chip richen up your fuel trims just a tad to help. I also recomend copper plugs. Keep in mind that according to Python Injection, these kits are designed to run on a 100% stock application without making any changes. Where you can get into trouble is when you have a lot of bolt-ons that might be throwing off your a/f a bit or cause your fuel system to run out of fuel if you ae using the biggest shot..

It is never a bad idea to throw the car on a dyno and check out the a/f no matter what. Just keep in mind that with the Venom the tuner's hands will be tied a bit.

These kits are very safe so long as you do not get carried away. They are not good kits IMO for trying to run a 200 shot for example, but if you stick with the directions and be reasonable (ie 90 shot) you will be good all day long. That's not to say you can't add more, but your risk increases.

I have used this kit for 2+ years. Sam has had it for about 5 years and has run something like 50 bottles through his. I know of no incident where a motor has blown on this kit...not one single one. Not to say that they are not out there, but I have no examples.

If you have a lot of bolt-ons, then you may want to upgrade your fuel system (ie pump and injectors) if you wish to use the largest jet (90 - 100).

As with any nitrous system, don't get carried away or greedy. Be smart.

 

I think that with a mail order tune then you just need to have the timing retarded a bit. Dont even mess with the fuel trims. If you have the Xcal then you can just retard it manually I think. The NX jet reccomendations should have the car running PIG RICH on spray. Like said above you dont want to just wash the cylinders with fuel...