manual transmission camshaft

[dillon1340]

my donor engine had a manual transmission and my truck is an auto. i would prefer to just use the cam from the donor engine since it would be easier. i understand the manual trans cam may have an advanced timing to it. what effect would this have on my auto shifting? the only thing i could think is that it may shift sooner since my a4ld goes by engine vacuum. anyone have experience with this?

 

[NICE59FORDF100]

Dill, actually I do. I have also read where some folks thinks it would make a difference, and others say it doesn't. I recently just rebuilt and overhauled my motor, and the donor engine came from a 5-speed ranger, where as my explorer is an auto. I reused the manual spec cam from the ranger with the auto tranny in my explorer, and noticed no difference. If anything, i noticed it pulled a bit harder around the 3000 rpm area, BUT tha could be just because I had a newly rebuilt motor

To me, it didn't make a difference. But definitely no harsh or ill effects.

 

[Spdrcer34]

If you are willing to swap cams, is a new cam and related parts not in the budget?

Ryan

 

[Mettler]

I think hes just trying to save the extra bucks by not breaking into the engine to swap out the cams.

 

[dillon1340]

Dill, actually I do. I have also read where some folks thinks it would make a difference, and others say it doesn't. I recently just rebuilt and overhauled my motor, and the donor engine came from a 5-speed ranger, where as my explorer is an auto. I reused the manual spec cam from the ranger with the auto tranny in my explorer, and noticed no difference. If anything, i noticed it pulled a bit harder around the 3000 rpm area, BUT tha could be just because I had a newly rebuilt motor

To me, it didn't make a difference. But definitely no harsh or ill effects.

awesome reply! i am so glad that you have first hand experience with this because it was kinda stressin me out.

my current engine i am running is a pos. it was driven with water in the oil and with no oil at all for a little bit too. i do not want to use any parts out of it because i am sure they are in bad shape.