Roush TVS Pullies
05-24-2010, 07:23 PM
#72
It's not that his cam is "bleeding" boost, his motor and exhaust is flowing more air which equals less restriction then a stock stock motor and exhaust. Boost is just a measure of restriction, remember?? 
On top of that, he's about 26-2800' above sea level, so he's gonna loose some for altitude too. I would say 2psi under advertised is about right for your mods and altitude with that pulley setup. 
On top of that, he's about 26-2800' above sea level, so he's gonna loose some for altitude too. I would say 2psi under advertised is about right for your mods and altitude with that pulley setup. I believe my trap speed was right around 100mph. Didn't feel like posting up my slip until I'm in the 12s.
05-25-2010, 01:26 PM
#76
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Just an note: The SLP supercharger TVS unit is identical to the Roush other than the etched logo on the top.
SLP didnt have any other pullies for their unit. Called magna charger and they stated they had the right pullies for it. Ordered ones, showed up and it was wrong (4 bolt).
SLP didnt have any other pullies for their unit. Called magna charger and they stated they had the right pullies for it. Ordered ones, showed up and it was wrong (4 bolt).
05-25-2010, 03:38 PM
#77
Just an note: The SLP supercharger TVS unit is identical to the Roush other than the etched logo on the top.
SLP didnt have any other pullies for their unit. Called magna charger and they stated they had the right pullies for it. Ordered ones, showed up and it was wrong (4 bolt).
SLP didnt have any other pullies for their unit. Called magna charger and they stated they had the right pullies for it. Ordered ones, showed up and it was wrong (4 bolt).
Keep trying man!
05-25-2010, 04:12 PM
#78
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i found an off the shelf tool for doing this in the lathe for those who may be interested. its got the geometry and pitch factored into the insert. its iscar's gpv line up. inserts are mid 20's to 40 a piece but i dont think i have a holder for them so thats more $$. i asked our walter rep today if he had anything and we were thinking of ways to do it in a machining center with a thread mill but its got 40 degree angle instead of the 60 or 55 of thread mill. ill continue my search
05-25-2010, 06:13 PM
#80
i found an off the shelf tool for doing this in the lathe for those who may be interested. its got the geometry and pitch factored into the insert. its iscar's gpv line up. inserts are mid 20's to 40 a piece but i dont think i have a holder for them so thats more $$. i asked our walter rep today if he had anything and we were thinking of ways to do it in a machining center with a thread mill but its got 40 degree angle instead of the 60 or 55 of thread mill. ill continue my search