ok this is the question i know they are both 32v and the cobra has the blower what is the difference in the internals of both engines like are they both fully forged? or what ...thanx
03 cobra vr mach1?
- Thread starter PiMpOnAnR1
- Start date
from what i believe, the cobra has the forged internals because of the supercharger, the mach one doesn't, and the mach1 has an alum. block, cobras dont. if anyone else knows the difference to add or change feel free to add but this is what i understand. idk if the mach one has a 6 bolt main either but i think the cobras do.
The Cobra has an iron block because SVT was originally gonna use the aluminum block for the Cobra....but they kept breaking in testing.
Mach 1 - HyperCrap Pistons, 10:1 CR, HyperCrap Rods, Aluminum Block
Cobra - Mahle Pistons, 8.5:1 CR, Manley Rods, Cast Iron Block
Both Motors have the same Head/Cam assembly and the same Crank (except for the Auto Mach 1s)
Cobra - Mahle Pistons, 8.5:1 CR, Manley Rods, Cast Iron Block
Both Motors have the same Head/Cam assembly and the same Crank (except for the Auto Mach 1s)
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Hj16 said it all. The Mach is a nice car, but the motors are very different. If you're keeping everything stock you'll probably be happy with either. If you intend to mod the motor, the Cobra will take you a LOT further without touching the internals. It's built for some serious power right out of the box.
One more thing. The 5 speed Mach has a cobra crank and the auto gets one thats casted.
thanx for the info guys but i thought the mach 1 had forged pistons and crank but the rods are not? and i see them with superchargers on them and they last to at least 500-600hp
Mach 1s DO NOT have Forged Pistons or Rods. The 5spds have a Forged Crank, but the Autos DO NOT.PiMpOnAnR1 said:
I have yet to see a Mach 1 make 500rwhp on the stock internals with any power adder for any significant length of time. They were not built for boost at all..... nitrous is their friend. Boost is their enemy with th stock internals.
hj16 said:
great info guys so the best bet is a nice set or high compression pistions and nos? about 12.1.1? or more or less?
well ide say if you're going to build the motor, build it to whatever it is that you want, IE: lower compression pistons for boosted applacations, what kind of block, crank, cams that you want for as my HP that you want reliably.
To run around with 12:1 CR you're going to need to run straight race gas. And it wouldnt even be worth it.PiMpOnAnR1 said:
If you are planning on staying NA and just spraying it, while running pump gas, Id recommend 10:1 or 10.5:1 CR. High enough to work very well with Nitrous, low enough to run on pump gas.
If you are going to spray over a 125 shot I recommend putting in new pistons ans rods before even trying it out. For pistons Id recommend CP Pistons, and for Rods a set of Manley H-Beams would work beautifully.
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