I just swapped in my 466 in my Bronco. It has a c6/np203, 3.50 gears, 33s except one that is a 31 on the rear passenger side (will replace with a 33 soon).

Here is the engine running.

Now I am having an issue when driving. My RPMs are too high for the mph I am going.

Here is an example. Keep in mind I think I am 5 mph off so the speedometer isn't correct (measured with GPS).




Here is a video of me driving...notice the RPMs and speed.



Any ideas why it is reving to high for my speed? It should be around 2,000 RPMs.

 

Links to videos plz, they no work for me.



N dam disappearing posts today.

 

O wtf is going on here

 

I had to edit and send it to Youtube.

 

Idk, rpm range looks ok to me for a C6 and 3.55s

 

3.50s


Kris calculated that I should be around 2,000 RPM at 55 MPH with 3.50 gears with a C6 1.1 3RD gear ratio.

 

Its a touch high by the calculations but really OK. It was much higher last night for some reason

 

Stall converter?

 

So it all looks good now?


I don't know what kind of converter I have. I forgot.

 

Converter shouldn't effect cruise rpm

 

If it has a higher stall than stock, that will raise the cruise rpm too. It will never reach 100% lockup on that style n

 

Guy that built my 460 said it is a stock converter 800-1000 rpm

 

The 88pickup i had on 32's with a 351 and a 3spd ran around 24-2500 Rpm in the 55-60 range