New Motor Startup

Aeroking

Aeroking

e.i.
I'm a couple weeks away from starting my new motor.

All the sources recommend running it at 2500rpm for about 10 minutes (not driving it of course).

I have a few questions about what conditions need to be followed during this time.

- Should i put on the turbo-IC hose, or leave it off, so the engine doesnt see boost.

- Should i unplug the "tan wire" so that the ECM doesnt control spark advance during the breakin time

- its Code 59, so would a base 60# tune be sufficient for the break-in.

- should i disconnect any sensors for the break-in (O2, MAT, IAC)

- should i hookup the WB, or leave it off for startup?

- would it be beneficial to run some 105 oct. Turbo Blue during the startup

- is there anything i should watchout for when i break it in?

any help would be great.

Thanks in advance, Brandon
 
Last edited:
Christian Dionne

Christian Dionne

Member
Re: New Motor Startup

Why bother with the 2500 for 10 minutes? You don't have a flat tappet cam do you? Just get the timing set right and make sure it's not running super rich and washing the cylinders down. Check for leaks and change the rpms around alot to make sure the oiling is splashing to different spots and that about it. I don't think I would run race gas, probably 87 octane is alot easier to fire on the first try. I would pull the dist, and prime the oil pump for a few minutes with a drill. Once everything feels and sounds right, I would just start driving it.
 
Don W.

Don W.

Stab it and steer it
Re: New Motor Startup

Aeroking said:
I'm a couple weeks away from starting my new motor.

All the sources recommend running it at 2500rpm for about 10 minutes (not driving it of course).

***Wrong

I have a few questions about what conditions need to be followed during this time.

- Should i put on the turbo-IC hose, or leave it off, so the engine doesnt see boost.

***Put it on.

- Should i unplug the "tan wire" so that the ECM doesnt control spark advance during the breakin time

***Set timing then plug it in.

- its Code 59, so would a base 60# tune be sufficient for the break-in.

***Don't know :roll:

- should i disconnect any sensors for the break-in (O2, MAT, IAC)

***No

- should i hookup the WB, or leave it off for startup?

***Hook it up

- would it be beneficial to run some 105 oct. Turbo Blue during the startup

***Not really, no need.

- is there anything i should watchout for when i break it in?

***Oil leaks, fuel leaks.

any help would be great.

Thanks in advance, Brandon
Click to expand...

READ THIS LINK and all the links in it.

http://www.syty.net/forums/showthread.php?t=58175

Especially this one:

http://www.mototuneusa.com/break_in_secrets.htm
 
turbodig

turbodig

Active member
Re: New Motor Startup

Run it with everything hooked up as it should be. The only exception I'd make is to wire the WG open so that boost is as limited as can be.

The 60# starter should be fine... that's what I plan on using.

Don't do any steady RPM during break-in. Up/down/up for the first 1/2 hour of driving or so.
Then dump the oil. I also flush with diesel fuel after draining the oil... gets any loose stuff that might be down in the bottom of the pan.
 
mrweelr

mrweelr

New member
Re: New Motor Startup

I'll be firing my new motor up within the next week or so too. So basically I should vary the RPMs a lot and keep the motor loaded for the first 25 miles or so and then change the oil and filter right away? I plan to prime the pump with a drill and verify pressure, start the motor, check for leaks, set the ignition timing to 0 BTDC while the engine is warming up, and then take it out for it's initial run with very low boost. I'm also using Valvoline VR1 20W50 racing oil and will switch to Mobil 1 full-syth after 5K miles or so. Will take it out when traffic is light (maybe Sunday morning) and hit the expressways where it's easy to vary engine RPM and speed. Great thread, keep the good info coming :tup:
 
Don W.

Don W.

Stab it and steer it
Re: New Motor Startup

IMHO no need for the Valvoline racing oil on startup. Without a priming "tool" in place of the dist I don't believe you'll pressurize the entire system, which you WILL want to do due to length of plumbing to and from the oil filter. I've primed engines using the starter but leave the plugs OUT so there is no load on the bearings at all. (Disconnect injs so you don't flood it either) For oil I'd suggest any good 10w30 NON synthetic.

Just my :2cents: for you to throw into the pot.
 
mrweelr

mrweelr

New member
Re: New Motor Startup

I do have a drill-attached Summit priming tool and Mike said use 20w50 for this motor. There was already 4 quarts of Pennzoil 20w50 in the crankcase so I just added one quart of the Valvoline stuff. Plugs and wires are already in and I'm not pulling them again for a while. The passenger side is sadistic and I'll be hating life big time when I have to pull those front two plugs and wires (agh).
 
Don W.

Don W.

Stab it and steer it
Re: New Motor Startup

CAMSTY said:
What's everyones opinion on this?

http://www.mototuneusa.com/break_in_secrets.htm
Click to expand...

I believe he is on the nose. Like I've said before: Follow cam mfg for cam break-in (especially if flat tappet), Bearings break-in almost immediately so yur left with the rings which need to see short periods of relatively high cyl pressure to break in properly. I haven't built allot of engines but the few I have range from 4cyl Jeep flatheads to Cummins diesels and this system works.
 
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