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Compression ratio help, B16A + boost

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Old 10-06-2001, 08:38 PM
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Default Compression ratio help, B16A + boost

I am looking to put a turbo'ed B16A (gen 1) into a CRX. What should I shoot for by way of compression ratio? I would like to shoot for moderate to high levels of boost, and would like to buy upgraded internals before I put the motor in to save myself the aggrivation at a later time. My subaru experience has taught me that 9.x:1 is good to shoot for in a FI application, but what I have been reading here seems to suggest low to mid 10's is ok in a honda. What are your suggestions? While this is not a money is no object project, i have a pretty large budget, so all suggestions are welcome.
Old 10-06-2001, 08:57 PM
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Default Re: Compression ratio help, B16A + boost (Safir)

wish i had a large budget *grumbles*
anyway heres my .02
i would shoot for 9:0:1 cr. or lower. if you double the headgasket it will lower it a little more allowing for a little more boost etc. if you build the engine and @ that CR you can easily run 20psi.
Old 10-07-2001, 06:53 AM
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Default Re: Compression ratio help, B16A + boost (KAMiN)

Thanks.
have any suggestions for pistons/rods to achieve that? from what I understand the factory CR for the 89-91 B16A is 10.1:1.
Old 10-08-2001, 08:40 AM
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Default Re: Compression ratio help, B16A + boost (KAMiN)

Ok, did a search, looks like JE pistons and Eagle rods is a good option, good performance, good price, and the JE pistons are avaliable in 9:1 for B series motors. What I was unable to uncover in my searches was a reliable place to purchase these components. Anyone have any suggestions? I will ask around at some of the local shops, but I have been unimpressed with my visits to them so far, so would like to avoid that if possible.

Thank you in advance.
Old 10-08-2001, 01:51 PM
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Default Re: Compression ratio help, B16A + boost (Safir)

We ran a CRX with a stock B16 with a custom turbo kit, best time to date is an 11.2 I would just build it with the stock compression. Get JE pistons and Crower rods
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