I am researching stage 3 of upgrades and am probably going to get the Roush blower inlet fixed up with swappable 8 rib pulleys. So, if I am doing an 8 rib conversion, I am thinking the water pump is probably going to be on borrowed time. I would consider an electric pump if I didn't daily drive, so I was wondering if anyone is using the PRW pump.

If so, which part number? Are you having good luck with it? Am I better off just welding or pinning a factory pump?

 

I just welded my factory pump. No issues.

 

Tacked or full welded?

 

I fully welded mine.

 

I full welded, but a couple good tacks would suffice.

 

I used the PRW waterpump on my rebuild with no operational issues thus far. Upon installation I had to mill down the back of the pulley to clear the KB idler bracket. I did run a tacked stock pump for a while after doing the 8-rib swap with no problems.

 

I broke my tac'd pump last night on about the 4th or 5th time actually getting on it.

 

Is it the tension from the HD 8 rib tensioners that kill it or excessive engine speed change torquing it off?

 

Tighter belt, and how the 8 rib rides on the pulley.

 

The PRW seems like it would at least address the latter problem. I know they are 400 bucks but if I broke and had a tow bill it would be worth it.