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Running Low Compression pistons on my b16 without boost

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Old 10-06-2006, 05:59 AM
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Default Running Low Compression pistons on my b16 without boost

hey guys hows it going.. i wanna hear what you guys think..


how bad do you think it will be to drive my car without boost..

i just bought all my parts and there sitting in my basement

JE pistons (9:0:1) 81.5
Eagle Rods
Cletive Bearings

ITR camshafts
ITR valvetrain
skunk 2 cam gears

ACT 6 puck clutch
ACT flywheel 12.5
Quafie LSD


some people on my board have said that i will loose power and its goign to hard to drive.. i jsut wanna get some other peoples thoughts..

thanks alot... and have a good long weekend


-Matt
Old 10-06-2006, 06:15 AM
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Default Re: Running Low Compression pistons on my b16 without boost (99redSIR)

Those people are right. Not really hard to drive, but you will loose power. Unless you're going boost in the future, it's a bad idea.
Old 10-06-2006, 06:17 AM
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Default Re: Running Low Compression pistons on my b16 without boost (black_EM1)

well how long are you planning on driving like that untill you have a turbo kit? if its a couple days i say fine but if its more then a couple weeks then id hold off.
Old 10-06-2006, 06:24 AM
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Default Re: Running Low Compression pistons on my b16 without boost (itsJDMbradyo!)

9:1 isn't that much of a difference. Just advance the hell out of the timing till you get the turbo on. i ran mine for a week without boost when i popped the compressor housing seal.
Old 10-06-2006, 08:57 AM
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Default Re: Running Low Compression pistons on my b16 without boost (sillylilcivic)

why would you want to do that? just put them on right before you turbo
Old 10-06-2006, 09:28 AM
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Default Re: Running Low Compression pistons on my b16 without boost (w0ng_sta)

there's plenty of reasons for doing this. I for one will be breaking in my motor, plus i have to save up extra cash for the turbo parts i want. I don't expect it to be a complete dog, but then again a b16 sucks down low anyway. Although i'd expect it to run a little rich.
Old 10-06-2006, 09:45 AM
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Default Re: Running Low Compression pistons on my b16 without boost (JDMFantasy2k)

Yeah I've read a lot of threads saying that breaking in an engine isn't really necessary. If the dealer doesn't break in the engines and doesn't tell you to, then why should you have to? I think the whole breaking-in thing was just useful back when the engines were made without such strict tolerances as they are now.

I wouldn't go into 20lbs of boost with a brand new engine, but you gotta realize those pistons are moving pretty damn fast and it won't take too long for it to "get situated." I would just wait until I have the turbo kit built, install all the parts, do the out of boost tuning, and drive an hour or two without going into boost...then change the oil and tune for boost.
Old 10-06-2006, 11:24 AM
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Default Re: Running Low Compression pistons on my b16 without boost (Jorsher)

i would run it w/o boost. let the engine have a break in period.
Old 10-06-2006, 11:27 AM
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Default

You don't have to break it in. Just put it all in when you install the turbo.
Old 10-06-2006, 12:29 PM
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Default Re: (Syndacate)

Yeah i agree it doesn't matter if it has a turbo or not, i mean factory turbo cars obviously get broken in with a turbo on them. But i'd like to get it up and driving first to wrok out any bugs before i go slapping a turbo on it. And i will be breaking it according to my break in procedure
Old 10-06-2006, 12:56 PM
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Default Re: (JDMFantasy2k)

the main reason for an engine break-in is to seat the rings to the cylinder wall. i've always heard to break them in how you plan to drive it. for most of us these are built for racing. so if you wait til the turbo is ready i would give it a little more time to break in and not rev real high, if a ring blows and pieces exit the exhaust then your new turbo now has piston ring shrapnel floating around in it.

and fwiw, dealers do give a break in period on new cars. thats why they tell you to keep it under 60mph till 100 miles.
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