[longassname]

Resistor mods increase the line pressure during times that the tcu is trying to reduce the line pressure. People have been using them to try to defeat the slow, sloppy shifts that SVXs came with from the factory. While it is possible to get at the sloppy shifts that way it's better to do it through the hydraulics because then you can increase line pressure when the tcu isn't trying to reduce the line pressure. Increasing the maximum line pressure increases torque holding capacity. Increasing torque holding capacity so that the brake band and high clutch do not slip prevents your transmission from burning up. Changes can also be made to increase lubrication of the planetary sets and bearings. The most common failure in SVX transmissions after high clutch and brake band burn out is failure of the thrust bearing on the rear support.

Resistor mods also mainly firm up shifts and don't dramatically speed up the shifts. They will speed the shift up a little because anything that reduces slippage during the engagement time will make the clutch pack or band being activated grab quicker. Valve body mods can speed up the shifts dramatically because there are modifactions made specifically and seperately to the fluid circuits that are slowing the shifts--not just line pressure. I have the valve body modifications for the SVX dialed in now. Shifts in transmissions with my modified valve bodies are instantaneous, firm, and smooth.

The short of it is that a good valve body not only shifts better than a resistor mod--it makes your transmission last much longer.