FMX to 4r70w swap

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Robsweden

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Im redoing the exhaust was not pleased. But now the front part is welded and ready :)



 

Robsweden

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Today I finally finished the exhaust. New pipes all the way and welded. I cut out for the pipes in the Valance.





 

Robsweden

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The Mach 1 has been out for a while now. The 4r70w is big improvment to the old FMX. Its so nice to Cruise the highway, but still smoke the tires when accelerating hard.

If someone has some questions Il be glad to help :)

[video=youtube]


Regards Rob

 
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RCH71

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1971 Mustang Mach 1, 351 Cleveland 2V with a FMX transmisison
[url=https://ibb.co/byqWMF][img]https://preview.ibb.co/gNvy1F/IMG_5370m.jpg[/img][/url]
Nice to know you are happy with it!! what is your rear gear ratio?
Thanks Gear ratio is 3.5  and tires are 27.1 inch
Do you know what was the stock converter stall was? and the stall after the modification?

 

Robsweden

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Mach 1 73 351c
Nice to know you are happy with it!! what is your rear gear ratio?
Thanks Gear ratio is 3.5  and tires are 27.1 inch
Do you know what was the stock converter stall was? and the stall after the modification?
Hi

I Think it was 1800 and modified to 2300-2400.  Its hard to get a correct stall speed number because ford used different settings. But stock should be  1600-1800.

 

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