Difference in DOHC Fuel Injection?

weldonGT · Nov 22, 2004

I just sold my 2003 Mach1 for a 2004 Cobra. My mach1 had a serious clicking noise at idle. I took it to the dealer and they tell me that the clicking was normal fuel injection clicking (I knew that fuel injection clicked a bit), but I notice now that the DOHC in my Cobra doesn't click at all (it is the most quite motor I've had in a mustang). What is the difference in the fuel injection between the DOHC in the Mach's and the Cobras?
Weldongt

Sam98 · Nov 22, 2004

The Mach 1 motor has 24lb injectors and the Cobra has 42lb injectors and the fuel pump/gas tank assembly are different, but other than that I'm not aware of any differences.

98svtconvert · Nov 23, 2004

good ? i was under the impression that the mack and the cobra had basically the same motor minus the blower.

Sam98 · Nov 23, 2004

98svtconvert said:
good ? i was under the impression that the mack and the cobra had basically the same motor minus the blower.

The Mach 1 and '03-'04 Cobra share the same heads, but the Mach 1 block has much more in common with the '99/'01 Cobra. Aluminum block, forged crank, cast pistons, 10.0:1 compression compared to 9.85:1 for the 99/01 Cobra. The '03-'04 Cobras have a steel block, forged 8.0:1 pistons, forged rods, and forged crank.

Difference in DOHC Fuel Injection?

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Difference in DOHC Fuel Injection?

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