[Shotimes] RE: Underdrive Pulleys WAS: Valve lash done...

[Donald Mallinson]

I have a very early Hypertech underdrive pully set on my '89 
(crank and alternator) and they have been perfect since 
installation.  This was the brand that later got a 
reputation for coming apart, but mine have been on for about 
120,000 miles with no problems.  I did mark mine a few years 
ago to see if it was turning any, and so far so good.  I 
think there was just one bad batch or run of those pully's. 
  at the time I talked to Hypertech at length about the 
problem, and they said it had been taken care of  (and Ford 
says the SHO V8 cam situation is just a "few" cars too, so I 
took that with a grain of salt.).

I agree, the UDP made a difference I thought I could feel, 
and (knock on giant redwood) I still have all my original 
pullys, alternator, A/C and PS pump as of 180,000 miles.

Don Mallinson

Ron Porter wrote:
> My former '89 had the SHO Shop underdrive pulleys put on back in October '96
> at about 135K miles. Tim Pavlik now has the car, it probably has 210K or so
> on it, an AFAIK the pulleys are still doing fine.
> 
> IMNSHO, the best mods for a daily street-driven SHO are underdrive pulleys,
> and a good y-pipe. Also, "maybe" a catback or better mufflers, but probably
> not necessary.