Originally Posted by VULF
I have the money the VW TD it is, is there a problem with having 5.13 gears running to high RPM's ?
What's your tire size?
for what it is worth, all stock samurai gears with 31" tires is the closest your going to get to a stock '87 Jetta with the 1.6TD in it.
The jetta turns 3000 rpm at 110 kmh
The samurai would be so very slightly higher than that with the 31's but is a little doggy at highway speed as the 1.6TD doesn't have sufficient torque.
You are better off with a slightly higher RPM so it doesn't fall on it's face on the freeway. But then again that could just be my setup too....
I believe the injection pump is goverened to some 5600 rpm but could be wrong.
Have heard of some pump builders getting 6000rpm+ out of the 1.6TD