Crankshaft

[jkbmkiii]

I read some where about diffrent year mkIII supras having diffrent cranks in them. One for 87-89 and one for 90 or newer. I looked but it said they were diffrent one is lighter and one is counter weighted. Nothing ever said if one was better then the other

 

[smurfmods]

I read some where about diffrent year mkIII supras having diffrent cranks in them. One for 87-89 and one for 90 or newer. I looked but it said they were diffrent one is lighter and one is counter weighted. Nothing ever said if one was better then the other

You get maybe 5hp and a tad smoother running engine. Anyone correct me if i'm wrong...

 

[IJ.]

I have both here and used the 7M crank for my new motor as I believe long term it will be kinder to the Main bearings as it should be less prone to Crank Whip at high engine speeds/loads.

Top 7M crank Bottom 6M

 

[jkbmkiii]

Thats good to know I also have bolth, my built 88 motor is in the car but I am getting ready to build a better built motor and the extra motor I have is a 1990