93 mustang tuning problem

Discussion in 'Fox 5.0 Mustang Tech' started by suburbanconcpet, Apr 25, 2008.


  1. suburbanconcpet

    suburbanconcpet New Member

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    I have a 93 mustang with a 347 stroker and a paxton novie 2000. yes it has all the goodies and enough fuel and it is an efi setup.. My problem is that i have a shop tuning my car with a sct chip. At 5600rpm the car is putting out 511hp at the rear wheels on the chasis dyno, great right well everytime we hit 5650rpm the car starts to cut back like a rev limiter kicking in but i have the chip pulled on the msd box and the rev is set at 8000rpm on the sct chip so there should be no rev limit intact at 5650rpm. now we called sct and they said that they have heard of the 93 computer not havin enough memory for this much horsepower and that i need to change to a 94 computer because there was more memory in it and i should be able to reach my 6700rpm goal. has anyone heard of this or is there someone out there with a charger on a stroker pushing the same amount of horse with a chip setup... Any help would be great...
    Thanks Ron
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  2. mustangfan1990

    mustangfan1990 New Member

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    well I have a 302 with a vortech and I am putting 540 rwhp and I have a 93 computer. My tuner said that the 93 cobra computer have torque limiters in them and you have to over ride them if you can. I cant take my car past 5500 rpms though due to my 42s being maxed out and the stock igintion isnt strong enough
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  3. suburbanconcpet

    suburbanconcpet New Member

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    I have 50# injectors and a msd 6al box with a blaster coil and a factory 93 computer... I know lots of people can bring there car up to 6500rpm, i mean i could stop at 5600rpm but i know the car has lots more plus i have plenty of fuel and plenty of spark. im way confused and it seems like everyone else i talk to is also...
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  4. mustangfan1990

    mustangfan1990 New Member

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    well I can take mine higher than 5500 rpms but injectors arent big enough though. My tuner made my computer work though so I wont have any problems. I cant wait to see my numbers when I can acually get into the 6k+ rpms possible 600 rwhp
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  5. D-SLO

    D-SLO New Member

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    hey I've had a couple of buddies have similar problems and it turned out to be the MSD ignition box. One was doing it brand new right out of the box! good luck
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