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First start of freshly built motor

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Old Nov 15, 2007 | 04:38 PM
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B16CRXT's Avatar
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From: SC
Default First start of freshly built motor

First some background on the setup.

This is a B18B, that I have been building for several months now. I'm running a worked head with crower titanium retainers, dual springs and 404's. Bottom end is JE forged 11.5:1 82mm pistons on Eagle H beams. Rotating assembly balanced etc...I'll be running RC 310cc injectors once I get it tuned but...

I have been told that I can start it and it will run on the stock LS map. I was told it will just run rich at idle. Is this true if I run the stock injectors?
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Old Nov 16, 2007 | 11:08 AM
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Default

just a guess, but stock injectors should run normal or lean with the cams at idle....
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Old Nov 18, 2007 | 12:50 PM
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From: schooling kids in ny, usa
Default Re: (X2BOARD)

a little lean is ok, rich isnt a good thing. your rings and hone are very sensitve to ******* up on initial start up.


you should start it up, can probably run on stock map if using stock injectors. make sure to crank the ******* crap out of the motor with the plugs disconnected and fuel linjectors not hooked up. this will build oil pressure in the motor. literally do it for a solid minute. then hook that back up and turn it on. do a quick check and make sure you arent leaking anything, then hold the revs in the 2000-3000 range until the motor heats up and the fan cycles. probably 10-20 min. can also be done with rad cap off to help blleed coolant system. then turn it off, change the oil.

once its cool and u have new oil and no leaks you can drive it around. put increasing load on the motor and be sure to engine brake
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Old Nov 18, 2007 | 12:52 PM
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From: schooling kids in ny, usa
Default Re: (blackeg)

oh yea, with that higheer compression, make sure u hit the motor with a timing gun before you start to load it up. i woudlnt go wide open or real high rpms without tuning though, considering your cams and compression
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Old Nov 18, 2007 | 03:18 PM
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Default Re: (blackeg)

Thanks guys. Yea, I started it up a hour or so ago. I did prime the oil pump a good bit before actually starting also. I had a couple leaks, but it was dumb stuff that I forgot to connect while putting it together. (ie. breather box line and a small coolant line) It has a VERY lopey idle and with the 8lb flywheel doesnt want to idle much below 1100rpm. Very little smoke on startup, then none. I didnt let it warm up though, because it got dark outside, and I have a few things left to do before the car is ready to take for a spin. Tomorrow should be the day to take it for a test drive.
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