Need upgraded drive advise
#1
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Joined: Jul 2024
Posts: 163
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2003 velocity 280 with a new xr outdrive, about 30hrs on unit.
Current engine is a sci 575 with some upgrades making around 650-675hp.
Engine is getting a new cam, heads and intercooler, power will be around 775-800. I also plan on installing a 565 big block with around 850 hp once this 575 gets close to service interval.
The xr is working perfect right now, I never smash the throttle down fast or haul butt through 4 ft waves hammering on the drive. Just roll into throttle slow, Just the way i like to drive.
What is the logical move for a stronger drive set up without spending 25k? Max machine gears? maybe just do a scx upper? i am Not very educated on the drives yet. Thanks.
Current engine is a sci 575 with some upgrades making around 650-675hp.
Engine is getting a new cam, heads and intercooler, power will be around 775-800. I also plan on installing a 565 big block with around 850 hp once this 575 gets close to service interval.
The xr is working perfect right now, I never smash the throttle down fast or haul butt through 4 ft waves hammering on the drive. Just roll into throttle slow, Just the way i like to drive.
What is the logical move for a stronger drive set up without spending 25k? Max machine gears? maybe just do a scx upper? i am Not very educated on the drives yet. Thanks.
#4
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Joined: Jul 2024
Posts: 163
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So the upper on the xr is the weaker link with the drive? Save money and get the scx upper and that should be a decently strong set up? And yes we are going to be very conservative on the timing ramp up to try and kill some torque.
#9
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Joined: Dec 2013
Posts: 1,012
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From: Bourbonnais, IL
I bought one from CP Performance and had a good experience.
https://www.cpperformance.com/p-1107...ete-black.aspx
https://www.cpperformance.com/p-1107...ete-black.aspx











