They work great, but will destroy your drives.... Just sayin, too much torque and power even if you drive them easy. When you get up to the higher RPM's the the HP and Torque come together, somethings going to give.

Running about 900hp with a pro charger through a bravo 1 xr. 2 years and 90 hrs later with 0 problems so far. That is with a five blade prop also.

What seems to be the best drive package at a reasonable price? At least the bravo 1"s are cheap to replace or rebuild.

What prop do you use? Thoughts on maximus

Did you beef up the motors and how was the ECU from vortech, everyone says the one from procharger is no good.

Thanks

Keep your drives and buy 1 or 2 matching spares. When they break swap out the spare and have the broken one rebuilt, then repeat, and repeat, and repeat some more!

Or upgrade drives to (theres no perfect drive, especially for a low price)

Arneson and SCX offer the best Bang for the buck IMO

The SCX-4 prob will end up costing as much or more then the Arneson with no gain in your application by the time you add a extension box, hydraulic steering, Stainless Gimbal ring, Helmet, Wilson Custom Marine blueprinted lower etc etc

B-Max is just as much as the SCX but still uses bravo lower gears. Johns customer service is great though.

X-Power seems to have a great product but at 35k each

Started as HP500's made a cam change and headers. They dynoed at 750hp & 825 ft.lbs. of torque. I run 34p 4 blade prop's and have only broke 1 set of XR upper gears. I priced out putting SCX drives on and the helmet kit is $983 the scx upper is $8629 and the coupler is $135 . I already run Imco lowers. There are a few guys on here that know what they are doing when it comes to EFI pro charger deals and I'm sure that they could fix you up . One thing I can tell you is that pro charger themself are totaly useless when it comes to setup info .

Reggie lay off the pipe

What seems to be the week link, the upper or lower unit?

Upper xr gears , merc had a major issue with them that they decided to do nothing about . You either got a good one or a bad one . If you got a bad one you got to try again for a fee of corse.

Vortech marine website.