I have an '07 GT with the Steeda cold air intake and a Diablo programer, I have it programed with the 91 octane program and the speed limiter taken off. It is running very strong untill I hit about 95mph then it starts bogging down and spitting and sputtering like it is not getting enough fuel. any ideas on what could be making it do this would be greatly appriciated.
I got an RPM Outlet gift certificate for Christmas, and I am planning on buying the SCT tuner/C&L CAI package. I called RPM and they said that they don't offer a custom tune, and that it was simple enough that I could do it on my own. (Which I don't agree with). I went with RPM becuse they are considerably cheaper ($500), but how should I go about getting the custom tune installed after I receive the tuner?
I bought a low-miles, still under warrantee '05 GT w/auto tranny from a big So.Cal.Dealer that does aftermarket add-ons. They asked me did I want anything done, and I said 'supercharger.' So I got an S2 S-trim Vortec and a Tuner, a Predator, that they set it up with - it came along with it in a box, don't know a thing about it except what it is. It can modify the stock Electronic Control Module settings that control the motor, shifts, fuel, etc to improve performance. I assume there was a modification added from stock to take care of the blower, and that's why I have the Predator.
The one thing they did wrong was set it up for 93 octane and they have the only pump within 35 miles, California being a 87, 89, 91 octane state generally although 93 is not illegal, just can't be found or worth the drive. I asked this question once before and someone posted to set ? to '3' since I can easily get 91, but I can't find the post.
Another question I have is, does the 'tune' from the Predator change several things, so the GT will go like hell even more than stock already, plus my 'tune' added in a standard setup for the blower? Or is the 'tune' just like factory until you start to really work on it or spend money on custom tunes from Diablo?
Another question, please. I notice the 'gas-saver' system tries to kick the shift up on the auto by bypassing what I assume is 2nd, and going direct to 3rd. It tries to do it even when I'm kind-of pedal to the metal and is really annoying shifting back and forth on its own like it has a brain. Can I make this stop without a 'tune' or will turning off Overdrive mode make it stop?
Just from reading and reading and reading, I've decided on the FRPP GTA's, the better ones from Borla for mufflers, since I am in a big apartment complex with old folks and little kids that don't need to hear a big roar every time I come and go - but I still want some when I'm out driving.
Lots of good info here. Any on my questions above will be greatly appreciated.
BTW, soup fans, forced induction is absolutely the place to start, along with a dynotune. Vortec says this blower adds 120rwhp, so if you figure that in with Fords little white lie about stock 300rwhp (more like 250-260) plus other recommended and inexpensive tricks - you're already well at/above "real" 400 rwhp.
'05 GT Auto Vortec SQ S-Trim Tungsten Grey w/California 'Appearance Package' Blue stripes and nifty Chromed Wheels (came with it)
i have a ? what is the better tuner the sct or the prediter or r they the same thanx for the help
quote:
ORIGINAL: NVR4GIT
I am looking to upgrade to CAI and a tune. I see alot of private parties selling tuners. My understanding is that tuners are registered to the car when you purchase them and can not be used on multiple cars. Is that true? Thank you.
I just purchased an '08 GT and I amconsidering the FR Power Upgrade Package - CAI and Tuner (plus mufflers). I am planning on going through the dealer because of warranty issues - plus I don't know what I'm doing when it comes to tuning a car.
First question, does this give the increased horsepower (20hp?) throughout the speed/hp curve?
Second question, how much more is this costing me by going through the dealer instead of aftermarket - ball bark $. Should I take the risk and figure out how to do it myself.
Third question, it is my understanding that if I go from the 3.55 stock gear to the 4.10, that will have to be tuned also.
Thanks!!
< Message edited by vaporstang -- 4/30/2008 5:56:05 AM >
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RE: So now you have a Tuner... now what? - 
