JMS chip owners!!! Come answer my bottom line questions.

[Rebel79]

I purchased my JMS chip a while back. At the time I saw a minimal increase in power, yet I could not take the car over 5k due to the agressive timing. After working out my fuel system and ignition systems I have come to the following conclusions:

Pros

• The car runs like a raped ape.
• Runs the car cooler (turns fan on at 195°)

Cons

• Have less throttle response
• Less low end torque
• Idle surges
• I no longer have my idle that sounds like i have a huge cam.

I will be dumping mh JMS chip for a PMS or equivelent when I have the cash.


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1994 Mustang Cobra
308ci, Vortech S-trim 11#, ported GT-40 heads, E-303 cam, FMS 1 5/8 headers, BBK Offroad H-pipe, 2-chamber flows, and several other goodies.
Rebel Racing. Home of Bay Area Mustangs