450 vs 500

[Rawze]

(07-03-2018 )Brock Wrote:  

(07-03-2018 )smorgan87 Wrote:  So rawze. What would be the better option in ur opinion for buying a used truck for heavy use. Buying a 450hp demandated and turned up to 550 or 600 or a 500-550 hp demandated and just put the torque up a bit in the rpm range? I know the 450s are much easier to find.

I'm not rawze and I know you directed your question to him but I have a opinion.

I have a factory 500 871 cpl 2733 small turbo.

1.8 million km original engine and head, alot of heavy weight hauled with this thing...

I've had it turned up at 600hp for the last couple years now and have yet to see any issue caused by it, my pyro does not get hot ever but I am always above 1500 rpm.

I pull hill better then alot of the big cpl trucks and use much less fuel.

I'm not saying it can't happen but I have yet to see a big cpl get better mpg then me and my engine seems to handle the power just fine, if I do have any issue come up..... It'll be from running the 625 overlay and a 8 soi for so long (which I no longer do) and hauling 140k loads.

Unfortunately I can only speak to what I've seen with my motor.

Factory 500 871 cpl 2733 small turbo -- Yes, that is the tier-2 engine (smaller injectors etc). With a 500 it can go either way depending on CPL.

When it comes to longevity, good programming, correct maint. etc. count the most. Second is how it is driven. Drive it nicely, stay away from high torque at lower rpm ranges, and they least a long time.