Conversions & Swaps LSX Engines in Non-LSX Vehicles
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1998 Mustang LSx FIRST START

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Old Jun 1, 2010 | 02:20 AM
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Default 1998 Mustang LSx FIRST START

So, Vats is still enabled, so it only runs for a second, but it has no issues firing at all! enjoy!

-Garrett

http://www.youtube.com/watch?v=5LaAHcV3tKM
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Old Jun 2, 2010 | 03:02 AM
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Very nice, what a great feeling. Just recently dropped an LS1 into a Porsche 928 and got exactly the same result (runs for about a second). I just turned off VATS today but have an issue with the accelerator pedal that I must work out. Keep us posted!
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Old Jun 2, 2010 | 03:34 AM
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YUP!! Its def a great feeling to see an hear em fire up, We just got the 99 mustang gt at the shop we did a 5.3 ls engine to it with a turbo setup to fire up, Drove it down the road, Today we fabbed up the exhaust on it for the turbo. Should be completely done by saturday!! Good luck guys on the builds
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Old Jun 2, 2010 | 04:21 PM
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Originally Posted by flippincamaro
YUP!! Its def a great feeling to see an hear em fire up, We just got the 99 mustang gt at the shop we did a 5.3 ls engine to it with a turbo setup to fire up, Drove it down the road, Today we fabbed up the exhaust on it for the turbo. Should be completely done by saturday!! Good luck guys on the builds
With the GM computer in it the ford THEFT light flashes and we can't get the computer to turn on the fuel pump, and we also can't get the key to crank the engine... anythoughts?

-Garrett

We hot wired the fuel pump and I shorted the starter to get it running underneath.
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Old Jun 2, 2010 | 05:58 PM
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Originally Posted by ge_forcez22
With the GM computer in it the ford THEFT light flashes and we can't get the computer to turn on the fuel pump, and we also can't get the key to crank the engine... anythoughts?

-Garrett

We hot wired the fuel pump and I shorted the starter to get it running underneath.
under the steering colum .. find the wire that has power when the key is in the on "start" position mine was white with pink line , run that wire to the nutral safety switch then to the starter seloniod.
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Old Jun 2, 2010 | 06:33 PM
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thanks!

Another question, I am going to run the fuel pump off the GM wiring coming from the GM fuse box. From what I understand the FP relay on the mustang is in the passenger side fender, any idea which wire it is in there? For some reason my maunaul and research doesn't have anything

-Garrett
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Old Jun 2, 2010 | 06:38 PM
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Talk about a sleeper
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Old Jun 2, 2010 | 07:13 PM
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Originally Posted by ge_forcez22
thanks!

Another question, I am going to run the fuel pump off the GM wiring coming from the GM fuse box. From what I understand the FP relay on the mustang is in the passenger side fender, any idea which wire it is in there? For some reason my maunaul and research doesn't have anything

-Garrett
not sure where it is on your year my 91 the fp relay is under the seat
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Old Jun 3, 2010 | 12:31 AM
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On the key, The guy who owns the car wanted to get rid of his ignition switch so we built a lil box with a switch in it that controls the accesories, key on an start, As for the fuel pump we ran new wires to it with a 255 installed into the tank aswell. The fuel pump comes on when ignition on is switched.
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Old Jun 3, 2010 | 11:44 PM
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Thanks for all the help guys! Once I get a chance to push the car back in the garage this weekend I will try and get all that stuff sorted out and I will post some pictures and maybe a video of it idling with the TC-78 on it

-Garrett
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Old Jun 4, 2010 | 12:13 AM
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ANGLE 2 from the iphone, lets you here the DB a little more, lol

http://www.youtube.com/watch?v=xc9B55M-qzw
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Old Jun 4, 2010 | 12:36 AM
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Angle 3... the REAL first start

http://www.youtube.com/watch?v=XPNe5...=youtube_gdata
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Old Jun 8, 2010 | 04:51 PM
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2 bar tune, fired up, and now the key and clutch safety switch work too...


http://www.youtube.com/watch?v=tEduZhJT6AQ
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Old Jun 9, 2010 | 12:52 PM
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if i am putting the ls1 into a 2004, after i install the kmember, can i use the ls1 motor ounts will they bolt right in or is there a modified kit for the conversion
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