X-Cal2 vs Pre-tuned chip

Aeroz · August 23rd, 2006, 04:03 PM

I saw on ebay that there are 99 v6 3.8l chips that will give around 20-25hp gain. They are anywhere from $10 to 50$.

The SCT Xcal-2 is around $400 nearly. It just tunes my chip that I already have right? Which should I go towards, and will using the X-cal2 give me more hp than the pre-tuned chip?

Side Question: What is the difference in the MAC Straight shot CAI 99 v6 3.8 and the MAC Cold Air Intake 99 v6 3.8

Does straight shot give more HP?

Justin@VMP · August 23rd, 2006, 04:24 PM

The $10-$50 chips you see on ebay are actually IAT resistor's. All they do is fake the PCM into thinking the air is cooler than it actually is to change the fuel mixture. In reality its not a chip, and it wont add any horsepower. The computer will adjust to the false readings making the IAT resistors junk.

94-04 Mustangs have a J3 port on the side of their vehicles' computer (aka EEC, PCM etc) which accepts chips.

When you install a chip onto the J3 port it overrides the stock PCM settings. One reason why the X-Cal 2 flashers are so popular is because they plug into the OBD-II port under the dash making changes to the PCM programming very easy. The chip requires you to pull the computer, clean the J3 port, and plug the chip in. The X-Cal 2 also saves the stock settings so that you can return to stock at anytime.

The programming on the SCT X-Cal 2 and SCT Chips are the same, its just a different way to get the tuning to the computer.

On a 94-04 V6 you will see a gain of 7-12rwhp and 7-12rwtq on premium fuel.

itschristorres8 · August 23rd, 2006, 11:29 PM

i bought one of them, they make ur a car lik a second faster to 100mph, but its NOT GOOD FOR the car. it'll make ur service engine light come on too. dont get it

00SoSlow · August 24th, 2006, 01:14 AM

sct tune for the win

99mustang232 · August 24th, 2006, 02:03 AM

I run a SCT 4way flip-chip that has a remote wire for changing tunes on the fly with the turn of a knob... love it but can't tweek or pull diagnostics

Justin@VMP · August 24th, 2006, 10:43 AM

Originally Posted by itschristorres8

i bought one of them, they make ur a car lik a second faster to 100mph, but its NOT GOOD FOR the car. it'll make ur service engine light come on too. dont get it

Its all in your head. There is no way that it will give you any kind of gains at all. They simply dont work on Mustangs.

turp · August 25th, 2006, 03:50 AM

J3 here. Made the biggest gain in HP for my six so far. Set it and forget it bitches!

August 23rd, 2006, 04:03 PM	#1
Aeroz Newbie Join Date: Jun 2006 Posts: 29	X-Cal2 vs Pre-tuned chip I saw on ebay that there are 99 v6 3.8l chips that will give around 20-25hp gain. They are anywhere from $10 to 50$. The SCT Xcal-2 is around $400 nearly. It just tunes my chip that I already have right? Which should I go towards, and will using the X-cal2 give me more hp than the pre-tuned chip? Side Question: What is the difference in the MAC Straight shot CAI 99 v6 3.8 and the MAC Cold Air Intake 99 v6 3.8 Does straight shot give more HP?

August 23rd, 2006, 04:24 PM	#2
Justin@VMP Newbie Join Date: Aug 2006 Location: Central FL Posts: 29	The $10-$50 chips you see on ebay are actually IAT resistor's. All they do is fake the PCM into thinking the air is cooler than it actually is to change the fuel mixture. In reality its not a chip, and it wont add any horsepower. The computer will adjust to the false readings making the IAT resistors junk. 94-04 Mustangs have a J3 port on the side of their vehicles' computer (aka EEC, PCM etc) which accepts chips. When you install a chip onto the J3 port it overrides the stock PCM settings. One reason why the X-Cal 2 flashers are so popular is because they plug into the OBD-II port under the dash making changes to the PCM programming very easy. The chip requires you to pull the computer, clean the J3 port, and plug the chip in. The X-Cal 2 also saves the stock settings so that you can return to stock at anytime. The programming on the SCT X-Cal 2 and SCT Chips are the same, its just a different way to get the tuning to the computer. On a 94-04 V6 you will see a gain of 7-12rwhp and 7-12rwtq on premium fuel. __________________ Jason Starkey 2006 Vista Blue 4.0 Mustang www.VMPTuning.com - SCT Chips, Flashers, and Dynotuning. Phone: 321-206-9369 Email: Jason@VMPTuning.com

August 23rd, 2006, 11:29 PM	#3
itschristorres8 I Post Entirely Way Too Much 2000 Mustang V6 n proud 13.1@107mph 2.1-60' Join Date: Aug 2006 Location: south florida Posts: 13,841	i bought one of them, they make ur a car lik a second faster to 100mph, but its NOT GOOD FOR the car. it'll make ur service engine light come on too. dont get it __________________ 390rwhp V6 mustang stock bottom end

August 24th, 2006, 01:14 AM	#4
00SoSlow Hardcore Enthusiast Join Date: Feb 2006 Location: Pewaukee, Wisconsin Posts: 1,253	sct tune for the win __________________ 2000 V6 Performance Red @ Cardomain NO LONGER :*( 1987 LX Hatch \| Soon to be a 600hp monster

August 24th, 2006, 02:03 AM	#5
99mustang232 MM Fanatic 1999 Ford Mustang V6 Join Date: Sep 2005 Location: newport news, va Posts: 3,719	I run a SCT 4way flip-chip that has a remote wire for changing tunes on the fly with the turn of a knob... love it but can't tweek or pull diagnostics __________________ ...even fire and single cammin

August 25th, 2006, 03:50 AM	#7
turp Moderator 1989 MUSTANG LX 5.0 16.17@86.21(bone stock on street tires) Join Date: Aug 2005 Location: Virginia Beach, VA Posts: 2,893	J3 here. Made the biggest gain in HP for my six so far. Set it and forget it bitches! __________________ SUPPORT YOUR LOCAL HOOKERS....HUG A TOW TRUCK DRIVER! Donate to lxhatch@gmail.com

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