To tweak or not to tweak?

[REakin]

I've got about 700 miles on my rebuilt engine and haven't turned the pump up any yet.



My original train of thought was to let the engine get worn in a little closer to 5,000 miles before I started trying to turn things up. The truck runs great on the interstate and I think that I could pull a house down, but I drove my cousins 2nd Gen. and it runs better than my truck. He giggled to himself when he drove my truck and asked why his was so much faster... .



So finally getting to the point, what's everyone's opinion on turning up the pump on an engine with less than 1,000 miles on it? I'm not convinced I shouldn't wait. anyone care to change my mind?

 

[sparks57]

I'd give it a little more time to break in. I'm at 210k and I'm still breaking mine in!



Have patience, grasshopper!



And might I say, that is one SWEET ride you got there! Oo.

 

[paccool]

I think I would wait for a few more thousand miles. Give everything a chance to settle in. Maybe after the first oil change.



Is everything new or just the block? What I'm thinking about is the injector pump.

 

[sparks57]

Oh, and be carefull with that blocked wastegate... you're gonna wanna unblock that at some point so you don't grenade your turbo.

 

[REakin]

The wastegated housing was on the engine when I got it, thought I would run it awhile then change to a 16 cm. The injector pump was only freshened. The rods were reworked, new pistons old block bored and honed. I guess I'll wait..... It's going to drive me nuts though!!

 

[sparks57]

The 16 is the best overall housing for our trucks IMO. Pretty soon I'm gonna have to get a wastegated 16... I'm already at 30psi, and 40psi is pushing it for the compressor.

 

[REakin]

Mine only pushes 28 psi. Not too worried for right now.