I finally got one of VMP's new pulleys for the Roush TVS. It allows the use of the stock crank pulley and water pump pulley. No more running the Steeda UDPs which means no more broken water pump pulleys. I broke two in the course of a couple months. Apparently they can't take the load and abuse. I'm currently running a 3.25" blower pulley, stock crank pulley, stock water pump pulley, and a 90mm idler directly below the blower. The pulley uses a press in hub and than the pulley bolts to the hub. So, pulleys can be swapped fairly easy.
I suspect due to belt wear and how much dust it was putting off that it was probably slipping quite a bit with such a small blower and crank pulley. Another good thing about the pulley is that I really can't see the belt coming off of it. This set-up should also create more belt wrap so there are no issues of it slipping currently. I'm going to be putting a brand new belt on it and watch how it wears very closely to see if there was a problem previously. I'll post in a couple of weeks about how that turns out. I'm very happy with the set-up and can't wait to try some more things out in the future!
Steeda Water Pump Pulley Damage
First time:
View attachment 242366
Second Time:
View attachment 242367
3.25" Pulley & Hub.
View attachment 242368
VMP Pulley Tool I used to remove the 2.65" pulley and install the new 3.25" pulley:
View attachment 242369
View attachment 242370
Hub Installation:
View attachment 242371
View attachment 242372
View attachment 242373
View attachment 242374
Previous Set-Up Dyno - 506 rwhp / 475 rwtq @ 10 psi:
View attachment 242375
New Set-Up Dyno - 524 rwhp / 502 rwtq @ 11 psi:
View attachment 242376
I suspect due to belt wear and how much dust it was putting off that it was probably slipping quite a bit with such a small blower and crank pulley. Another good thing about the pulley is that I really can't see the belt coming off of it. This set-up should also create more belt wrap so there are no issues of it slipping currently. I'm going to be putting a brand new belt on it and watch how it wears very closely to see if there was a problem previously. I'll post in a couple of weeks about how that turns out. I'm very happy with the set-up and can't wait to try some more things out in the future!
Steeda Water Pump Pulley Damage
First time:
View attachment 242366
Second Time:
View attachment 242367
3.25" Pulley & Hub.
View attachment 242368
VMP Pulley Tool I used to remove the 2.65" pulley and install the new 3.25" pulley:
View attachment 242369
View attachment 242370
Hub Installation:
View attachment 242371
View attachment 242372
View attachment 242373
View attachment 242374
Previous Set-Up Dyno - 506 rwhp / 475 rwtq @ 10 psi:
View attachment 242375
New Set-Up Dyno - 524 rwhp / 502 rwtq @ 11 psi:
View attachment 242376