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Should I use my stock injectors when breaking in my new engine?

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96gstdsm

15+ Year Contributor
808
2
Aug 7, 2006
monroe, New York
I would wondering if it would better to use my stock injectors when breaking in my new engine? Heard it was real bad to run rich just after putting in a rebuilt engine. Would it be riskier if I threw in my new 650's? How about installing the ecu+ while breaking it in also? Bad idea? Should I wait till after 500 miles or so and then throw the fuel and ecu+ and give it a tune? How low boost should I set it at within the break in period time? I am going to have the 190 in right away, but wouldn't think that would be a problem at all.
Let me know what you think. Thanks.
 
Yes, stock ones will be fine if not better. If its running too rich it will wash out the cylinders, and beings the rings wont be competely seated yet you will contaminate the oil with gas...not good. In addition to that, you wont be making power during the breakin period, or at least not enough power to need th big injectors. After like 1500 miles and mulitple oil/filter changes, then i would put the bigger injectors in and lay down some numbers!!


Joe
SBR
 
Ok sounds good, thats what I figured but wanted some confirmation. Thanks.
Anyone know what boost I should keep it at for break in? I bought a big 16g turbo. Will be on stock smic for a little while also.
 
Ok sounds good, thats what I figured but wanted some confirmation. Thanks.
Anyone know what boost I should keep it at for break in? I bought a big 16g turbo. Will be on stock smic for a little while also.

not that big of an issue beings it shouldnt be seeing full boost during break in, but keep it around 15ish for the sake of running a stock SMIC. They like to heatsoak. ;)


Joe
SBR
 
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